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  • 1.
    Aanestad, Øystein
    Uppsala universitet, Medicinska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Quantitative electromyographic studies of the perineal muscles in normal subjects and patients suffering from anal or urinary incontinence1998Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    The aims of the study were to characterize the interference pattern in perineal muscles in healthy subjects with the use of quantitative EMG techniques, to evaluate if prostatic surgery had any effect on the interference pattern and furthermore to examine the interference pattern in the perineal muscles in patients suffering from urinary or anal incontinence.

    The interference pattern in the perineal muscles was examined with a computerized analysis, the Turns and Amplitude (T/A) analysis, and the innervation pattern of the muscles was examined with single fiber electromyography measuring the fiber density. Reference values were collected from 30 normal subjects. The patient material consisted of 20 males subjected to transurethral prostatectomy (TUR-P), 10 males who underwent radical retropubic prostatectomy (RRP), 20 patients suffering from anal incontinence and 24 women withurinary incontinence.

    T/A analysis of the interference pattern in the perineal muscles in normal subjects showed a significant increase in number of turns/sec and mean amplitude correlating to increasing force but no age-related changes.

    TUR-P and RRP did effect the innervation of the distal urethral sphincter muscle as shown by increased fiber density indicating a peripheral nerve lesion. T/A analysis did not shown any increased activation of the distal urethral sphincter as a compensation for the loss in bladder neck sphincter function but rather signs of decreasedcentral activation.

    Patients with idiopathic faecal incontinence showed signs of impaired innervation of the external anal sphincter muscle. A decreased interference pattern at maximal contraction indicated a reduced central activation of perineal muscles, in particular for patients with partial rupture of the external anal sphincter muscle. The reduced central activation could play a role for the aetiology of faecal incontinence.

    Patients with urinary stress incontinence also showed signs of impaired innervation of the external anal sphincter muscle as well as reduced interference pattern at maximal contraction and during continuous recording of the EMG activity during cystometry. A reduced central activation of the motor units was predicted as one factor involved in the aetiology.

  • 2.
    Abdulcadir, Jasmine
    et al.
    Outpatient Clinic for Women with FGM/C, Department of Obstetric and Gynecology, Geneva University Hospitals.
    Abdulcadir, Omar
    Referral Centre for Preventing and Curing Female Genital Mutilation, Department of Maternal and Child Health, Careggi University Hospital, Florence, Italy.
    Caillet, Martin
    Outpatient Clinic for Women with FGM/C, Department of Obstetric and Gynecology, Geneva University Hospitals.
    Catania, Lucrezia
    Referral Centre for Preventing and Curing Female Genital Mutilation, Department of Maternal and Child Health, Careggi University Hospital, Florence, Italy.
    Cuzin, Béatrice
    Division of Urology and Transplantation, Edouard Herriot Hospital, Lyon, France.
    Essén, Birgitta
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kvinnors och barns hälsa, Internationell mödra- och barnhälsovård (IMCH), Internationell kvinno- och mödrahälsovård och migration.
    Foldès, Pierre
    Institute of Reproductive Health, Saint Germain en Laye, Paris, France.
    Johnsdotter, Sara
    Faculty of Health and Society, Malmö University, Malmö, Sweden.
    Johnson-Agbakwu, Crista
    Refugee Women's Health Clinic, Obstetrics & Gynecology, Maricopa Integrated Health System.
    Nour, Nawal
    Global Ob/Gyn and African Women's Health Center, Ambulatory Obstetrics, Office for Multicultural Careers, Division of Global Obstetrics and Gynecology, Brigham and Women's Hospital.
    Ouedraogo, Charlemagne
    University Hospital Yalgado Ouedraogo of Ouagadougou, Ouagadougou, Burkina Faso.
    Warren, Nicole
    Department of Community Public Health Nursing, John Hopkins School of Nursing, Baltimore, MD, USA.
    Wylomanski, Sophie
    Department of Gynecology and Obstetrics, Nantes University Hospital, Nantes, France.
    Clitoral Surgery After Female Genital Mutilation/Cutting2017Inngår i: Aesthetic surgery journal, ISSN 1090-820X, E-ISSN 1527-330X, Vol. 37, nr 9, s. NP113-NP115Artikkel i tidsskrift (Annet vitenskapelig)
  • 3. Aboyans, Victor
    et al.
    Björck, Martin
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kärlkirurgi.
    Brodmann, Marianne
    Collet, Jean-Philippe
    Czerny, Martin
    De Carlo, Marco
    Naylor, A Ross
    Roffi, Marco
    Tendera, Michal
    Vlachopoulos, Charalambos
    Ricco, Jean-Baptiste
    Document Reviewers,
    Widimsky, Petr
    Kolh, Philippe
    Dick, Florian
    de Ceniga, Melina Vega
    Piepoli, Massimo Francesco
    Sievert, Horst
    Sulzenko, Jakub
    Esc Committee For Practice Guidelines Cpg,
    Windecker, Stephan
    Aboyans, Victor
    Agewall, Stefan
    Barbato, Emanuele
    Bueno, Héctor
    Coca, Antonio
    Collet, Jean-Philippe
    Coman, Ioan Mircea
    Dean, Veronica
    Delgado, Victoria
    Fitzsimons, Donna
    Gaemperli, Oliver
    Hindricks, Gerhard
    Iung, Bernard
    Jüni, Peter
    Katus, Hugo A
    Knuuti, Juhani
    Lancellotti, Patrizio
    Leclercq, Christophe
    McDonagh, Theresa
    Piepoli, Massimo Francesco
    Ponikowski, Piotr
    Richter, Dimitrios J
    Roffi, Marco
    Shlyakhto, Evgeny
    Simpson, Iain A
    Zamorano, Jose Luis
    Questions and Answers on Diagnosis and Management of Patients with Peripheral Arterial Diseases: A Companion Document of the 2017 ESC Guidelines for the Diagnosis and Treatment of Peripheral Arterial Diseases, in collaboration with the European Society for Vascular Surgery (ESVS).2018Inngår i: European Journal of Vascular and Endovascular Surgery, ISSN 1078-5884, E-ISSN 1532-2165, Vol. 55, nr 4, s. 457-464, artikkel-id S1078-5884(17)30516-6Artikkel i tidsskrift (Fagfellevurdert)
  • 4. Aboyans, Victor
    et al.
    Ricco, Jean-Baptiste
    Bartelink, Marie-Louise
    Björck, Martin
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kärlkirurgi.
    Brodmann, Marianne
    Cohner, Tina
    Collet, Jean-Philippe
    Czerny, Martin
    De Carlo, Marco
    Debus, Sebastian
    Espinola-Klein, Christine
    Kahan, Thomas
    Kownator, Serge
    Mazzolai, Lucia
    Naylor, Ross
    Roffi, Marco
    Röther, Joachim
    Sprynger, Muriel
    Tendera, Michal
    Tepe, Gunnar
    Venermo, Maarit
    Vlachopoulos, Charalambos
    Desormais, Ileana
    [2017 ESC Guidelines on the Diagnosis and Treatment of Peripheral Arterial Diseases, in collaboration with the European Society for Vascular Surgery (ESVS)]2017Inngår i: Kardiologia polska, ISSN 0022-9032, E-ISSN 1897-4279, Vol. 75, nr 11, s. 1065-1160Artikkel i tidsskrift (Fagfellevurdert)
  • 5. Aboyans, Victor
    et al.
    Ricco, Jean-Baptiste
    Bartelink, Marie-Louise E L
    Björck, Martin
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kärlkirurgi.
    Brodmann, Marianne
    Cohnert, Tina
    Collet, Jean-Philippe
    Czerny, Martin
    De Carlo, Marco
    Debusa, Sebastian
    Espinola-Klein, Christine
    Kahan, Thomas
    Kownator, Serge
    Mazzolai, Lucia
    Naylora, A Ross
    Roffi, Marco
    Rotherb, Joachim
    Sprynger, Muriel
    Tendera, Michal
    Tepe, Gunnar
    Venermoa, Maarit
    Vlachopoulos, Charalambos
    Desormais, Ileana
    2017 ESC Guidelines on the Diagnosis and Treatment of Peripheral Arterial Diseases, in collaboration with the European Society for Vascular Surgery (ESVS).2018Inngår i: Revista espanola de cardiologia (English ed.), ISSN 1885-5857, Vol. 71, nr 2, artikkel-id 111Artikkel i tidsskrift (Fagfellevurdert)
  • 6.
    Acosta, Rafael
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Plastikkirurgi.
    Rozen, Warren M.
    Whitaker, Iain S.
    Banking of the DIEP Flap: A "Previously Described New Technique" Reply2010Inngår i: Plastic and reconstructive surgery (1963), ISSN 0032-1052, E-ISSN 1529-4242, Vol. 126, nr 4, s. 1407-1409Artikkel i tidsskrift (Fagfellevurdert)
  • 7.
    Acosta, Rafael
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Plastikkirurgi.
    Rozen, Warren M.
    Whitaker, Iain S.
    Probing Questions on Implantable Probes Reply2010Inngår i: Plastic and reconstructive surgery (1963), ISSN 0032-1052, E-ISSN 1529-4242, Vol. 126, nr 5, s. 1790-1791Artikkel i tidsskrift (Fagfellevurdert)
  • 8.
    Acosta, S.
    et al.
    Lund Univ, Dept Clin Sci, Vasc Ctr, Malmo, Sweden..
    Björck, Martin
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kärlkirurgi.
    Wanhainen, Anders
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kärlkirurgi.
    Negative-pressure wound therapy for prevention and treatment of surgical-site infections after vascular surgery2017Inngår i: British Journal of Surgery, ISSN 0007-1323, E-ISSN 1365-2168, Vol. 104, nr 2, s. E75-E84Artikkel, forskningsoversikt (Fagfellevurdert)
    Abstract [en]

    BackgroundIndications for negative-pressure wound therapy (NPWT) in vascular surgical patients are expanding. The aim of this review was to outline the evidence for NPWT on open and closed wounds. MethodsA PubMed, EMBASE and Cochrane Library search from 2007 to June 2016 was performed combining the medical subject headings terms wound infection', abdominal aortic aneurysm (AAA)', fasciotomy', vascular surgery' and NPWT' or VAC'. ResultsNPWT of open infected groin wounds was associated with shorter duration of wound healing by 47 days, and was more cost-effective than alginate dressings in one RCT. In one RCT and six observational studies, NPWT-related major bleeding and graft preservation rates were 0-10 and 83-100 per cent respectively. One retrospective comparative study showed greater wound size reduction per day, fewer dressing changes, quicker wound closure and shorter hospital stay with NPWT compared with gauze dressings for lower leg fasciotomy. NPWT and mesh-mediated fascial traction after AAA repair and open abdomen was associated with high primary fascial closure rates (96-100 per cent) and low risk of graft infection (0-7 per cent). One retrospective comparative study showed a significant reduction in surgical-site infection, from 30 per cent with standard wound care to 6 per cent with closed incisional NPWT. ConclusionNPWT has a central role in open and infected wounds after vascular surgery; the results of prophylactic care of closed incisions are promising.

  • 9.
    Acosta, Stefan
    Uppsala universitet, Medicinska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    On Acute Thrombo-Embolic Occlusion of the Superior Mesenteric Artery2004Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Acute thrombo-embolic occlusion of the superior mesenteric artery (SMA) with intestinal infarction is a lethal disease, difficult to diagnose in time, with unknown incidence and cause-specific mortality. The aim of this thesis was to characterize the disease and to develop diagnostic methods.

    Two laboratory studies were conducted on patients with suspected acute SMA occlusion. A pilot-study showed that the fibrinolytic marker D-dimer was elevated in six patients with the disease. In the subsequent study including 101 patients, D-dimer was the only elevated coagulation marker in nine patients with the disease. In a prospective study 24 patients (median age 84 years) were identified, of whom four were diagnosed at autopsy, despite an autopsy-rate of 10%. One-fourth were initially nursed in non-surgical wards. Length of the intestinal infarction was a predictor for death. An analysis of patients from the three studies showed that D-Dimer was elevated in all 16 tested patients with the disease.

    Sixty patients with acute SMA occlusion underwent intestinal revascularisation and were registered in the Swedish Vascular Registry (SWEDVASC). One-year survival-rate was 40%. Previous vascular surgery was a negative risk-factor.

    A population-based study was conducted in Malmö, based on an autopsy-rate of 87%. Among 270 patients with the disease, 2/3 were diagnosed only at autopsy and 1/2 were managed in non-surgical wards. The incidence was 8.6 per 100000 person years. The age-standardized incidence increased exponentially without gender differences. The diagnosis was the cause of death in 1.2% among octogenarians and beyond. Thrombotic occlusions were located proximally within the SMA and associated with extensive intestinal infarctions. Synchronous embolism, often multiple, occurred in 2/3 of the patients with embolic occlusions.

    Conclusions: A normal D-dimer at presentation most likely excludes the diagnosis. Acute SMA occlusion was more frequent than previously estimated from clinical series. The patients were often nursed in non-surgical wards.

    Delarbeid
    1. Preliminary study of D-dimer as a possible marker of acute bowel ischaemia
    Åpne denne publikasjonen i ny fane eller vindu >>Preliminary study of D-dimer as a possible marker of acute bowel ischaemia
    2001 Inngår i: Br J Surg, Vol. 88, s. 385 - 388Artikkel i tidsskrift (Fagfellevurdert) Published
    Identifikatorer
    urn:nbn:se:uu:diva-91561 (URN)
    Tilgjengelig fra: 2004-04-14 Laget: 2004-04-14bibliografisk kontrollert
    2. D-dimer testing in patients with suspected acute thromboembolic occlusion of the superior mesenteric artery
    Åpne denne publikasjonen i ny fane eller vindu >>D-dimer testing in patients with suspected acute thromboembolic occlusion of the superior mesenteric artery
    2004 (engelsk)Inngår i: British Journal of Surgery, ISSN 0007-1323, E-ISSN 1365-2168, Vol. 91, nr 8, s. 991-994Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    BACKGROUND:

    There is no accurate non-invasive method available for the diagnosis of acute thromboembolic occlusion of the superior mesenteric artery (SMA). The aim of this study was to assess the diagnostic properties of the fibrinolytic marker D-dimer.

    METHODS:

    From September 2000 to April 2003 consecutive patients aged over 50 years admitted to hospital with acute abdominal pain were studied. Patients with possible acute SMA occlusion at presentation had blood samples taken within 24 h of the onset of the pain for analysis of D-dimer, plasma fibrinogen, activated partial thromboplastin time, prothrombin time and antithrombin. The value of D-dimer testing to diagnose SMA occlusion was assessed by means of likelihood ratios.

    RESULTS:

    Nine of 101 patients included had acute SMA occlusion. The median D-dimer concentration was 1.6 (range 0.4-5.6) mg/l, which was higher than that in 25 patients with inflammatory disease (P = 0.007) or in 14 patients with intestinal obstruction (P = 0.005). The combination of a D-dimer level greater than 1.5 mg/l, atrial fibrillation and female sex resulted in a likelihood ratio for acute SMA occlusion of 17.5, whereas no patient with a D-dimer concentration of 0.3 mg/l or less had acute SMA occlusion.

    CONCLUSION:

    D-dimer testing may be useful for the exclusion of patients with suspected acute SMA occlusion.

    Emneord
    Abdominal Pain/*etiology, Aged, Aged; 80 and over, Female, Fibrin Fibrinogen Degradation Products/*analysis, Humans, Male, Mesenteric Artery; Superior, Mesenteric Vascular Occlusion/*diagnosis, Middle Aged, Sensitivity and Specificity, Thromboembolism/*diagnosis
    HSV kategori
    Identifikatorer
    urn:nbn:se:uu:diva-91562 (URN)10.1002/bjs.4645 (DOI)15286959 (PubMedID)
    Tilgjengelig fra: 2004-04-14 Laget: 2004-04-14 Sist oppdatert: 2017-12-14bibliografisk kontrollert
    3. Acute thrombo-embolic occlusion of the superior mesenteric artery: A prospective study in a well defined population
    Åpne denne publikasjonen i ny fane eller vindu >>Acute thrombo-embolic occlusion of the superior mesenteric artery: A prospective study in a well defined population
    2003 Inngår i: Eur J Vasc Endovasc Surg, Vol. 26, s. 179-183Artikkel i tidsskrift (Fagfellevurdert) Published
    Identifikatorer
    urn:nbn:se:uu:diva-91563 (URN)
    Tilgjengelig fra: 2004-04-14 Laget: 2004-04-14bibliografisk kontrollert
    4. Revascularization of the superior mesenteric artery after acute thromboembolic occlusion
    Åpne denne publikasjonen i ny fane eller vindu >>Revascularization of the superior mesenteric artery after acute thromboembolic occlusion
    Vise andre…
    2002 Inngår i: Br J Surg, Vol. 89, s. 923-927Artikkel i tidsskrift (Fagfellevurdert) Published
    Identifikatorer
    urn:nbn:se:uu:diva-91564 (URN)
    Tilgjengelig fra: 2004-04-14 Laget: 2004-04-14bibliografisk kontrollert
    5. Incidence of acute thrombo-embolic occlusion of the superior mesenteric artery - a population-based study
    Åpne denne publikasjonen i ny fane eller vindu >>Incidence of acute thrombo-embolic occlusion of the superior mesenteric artery - a population-based study
    Vise andre…
    2004 Inngår i: Eur J Vasc Endovasc Surg, Vol. 27, s. 145 - 150Artikkel i tidsskrift (Fagfellevurdert) Published
    Identifikatorer
    urn:nbn:se:uu:diva-91565 (URN)
    Tilgjengelig fra: 2004-04-14 Laget: 2004-04-14bibliografisk kontrollert
    6. Autopsy findings in 213 patients with fatal acute thrombo-embolic occlusion of the superior mesenteric artery
    Åpne denne publikasjonen i ny fane eller vindu >>Autopsy findings in 213 patients with fatal acute thrombo-embolic occlusion of the superior mesenteric artery
    Vise andre…
    (engelsk)Artikkel i tidsskrift (Fagfellevurdert) Submitted
    HSV kategori
    Identifikatorer
    urn:nbn:se:uu:diva-91566 (URN)
    Tilgjengelig fra: 2004-04-14 Laget: 2004-04-14 Sist oppdatert: 2013-08-14bibliografisk kontrollert
  • 10. Acosta, Stefan
    et al.
    Björck, Martin
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kärlkirurgi.
    Acute and Chronic Mesenteric Vascular Disease2017Inngår i: Vascular Surgery:: Principles and Practice / [ed] Wilson SE; Jimenez JC; Veith FJ; Naylor AR; Buckels JAC, CRC Press, 2017, 4, s. 603-617Kapittel i bok, del av antologi (Fagfellevurdert)
  • 11. Acosta, Stefan
    et al.
    Björck, Martin
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kärlkirurgi.
    Petersson, Ulf
    Vacuum-assisted wound closure and mesh-mediated fascial traction for open abdomen therapy: a systematic review2017Inngår i: Anaesthesiology intensive therapy, ISSN 1731-2515, Vol. 49, nr 2, s. 139-145Artikkel, forskningsoversikt (Fagfellevurdert)
    Abstract [en]

    BACKGROUND: The aim of this paper was to review the literature on vacuum-assisted wound closure and mesh-mediated fascial traction (VAWCM) in open abdomen therapy. It was designed as systematic review of observational studies.

    METHODS: A Pub Med, EMBASE and Cochrane search from 2007/01-2016/07 was performed combining the Medical Subject Headings "vacuum", "mesh-mediated fascial traction", "temporary abdominal closure", "delayed abdominal closure", "open abdomen", "abdominal compartment syndrome", "negative pressure wound therapy" or "vacuum assisted wound closure".

    RESULTS: Eleven original studies were found including patients numbering from 7 to 111. Six studies were prospective and five were retrospective. Nine studies were on mixed surgical (n = 9), vascular (n = 6) and trauma (n = 6) patients, while two were exclusively on vascular patients. The primary fascial closure rate per protocol varied from 80-100%. The time to closure of the open abdomen varied between 9-32 days. The entero-atmospheric fistula rate varied from 0-10.0%. The in-hospital survival rate varied from 57-100%. In the largest prospective study, the incisional hernia rate among survivors at 63 months of median follow-up was 54% (27/50), and 16 (33%) repairs out of 48 incisional hernias were performed throughout the study period. The study patients reported lower short form health survey (SF-36) scores than the mean reference population, mainly dependent on the prevalence of major co-morbidities. There was no difference in SF-36 scores or a modified ventral hernia pain questionnaire (VHPQ) at 5 years of follow up between those with versus those without incisional hernias.

    CONCLUSIONS: A high primary fascial closure rate can be achieved with the vacuum-assisted wound closure and meshmediated fascial traction technique in elderly, mainly non-trauma patients, in need of prolonged open abdomen therapy.

  • 12. Acosta, Stefan
    et al.
    Seternes, Arne
    Venermo, Maarit
    Vikatmaa, Leena
    Sörelius, Karl
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kärlkirurgi.
    Wanhainen, Anders
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kärlkirurgi.
    Svensson, Mats
    Djavani, Khatereh
    Department of Surgery, Gävle Hospital, Gävle, Sweden.
    Björck, Martin
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kärlkirurgi.
    Open Abdomen Therapy with Vacuum and Mesh Mediated Fascial Traction After Aortic Repair: an International Multicentre Study2017Inngår i: European Journal of Vascular and Endovascular Surgery, ISSN 1078-5884, E-ISSN 1532-2165, Vol. 54, nr 6, s. 697-705Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    OBJECTIVES:

    Open abdomen therapy may be necessary to prevent or treat abdominal compartment syndrome (ACS). The aim of the study was to analyse the primary delayed fascial closure (PDFC) rate and complications after open abdomen therapy with vacuum and mesh mediated fascial traction (VACM) after aortic repair and to compare outcomes between those treated with open abdomen after primary versus secondary operation.

    METHODS:

    This was a retrospective cohort, multicentre study in Sweden, Finland, and Norway, including consecutive patients treated with open abdomen and VACM after aortic repair at six vascular centres in 2006-2015. The primary endpoint was PDFC rate.

    RESULTS:

    Among 191 patients, 155 were men. The median age was 71 years (IQR 66-76). Ruptured abdominal aortic aneurysm (RAAA) occurred in 69.1%. Endovascular/hybrid and open repairs were performed in 49 and 142 patients, respectively. The indications for open abdomen were inability to close the abdomen (62%) at primary operation and ACS (80%) at secondary operation. Duration of open abdomen was 11 days (IQR 7-16) in 157 patients alive at open abdomen termination. The PDFC rate was 91.8%. Open abdomen initiated at primary (N=103), compared with secondary operation (N=88), was associated with less severe initial open abdomen status (p=.006), less intestinal ischaemia (p=.002), shorter duration of open abdomen (p=.007), and less renal replacement therapy (RRT, p<.001). In hospital mortality was 39.3%, and after entero-atmospheric fistula (N=9) was 88.9%. Seven developed graft infection within 6 months, 1 year mortality was 28.6%. Intestinal ischaemia (OR 3.71, 95% CI 1.55-8.91), RRT (OR 3.62, 95% CI 1.72-7.65), and age (OR 1.12, 95% CI 1.06-1.12), were independent factors associated with in hospital mortality, but not open abdomen initiated at primary versus secondary operation.

    CONCLUSIONS:

    VACM was associated with a high PDFC rate after prolonged open abdomen therapy following aortic repair. Patient outcomes seemed better when open abdomen was initiated at primary, compared with secondary operation but a selection effect is possible.

  • 13.
    Adalberth, Gunnar
    Uppsala universitet, Medicinska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Total knee arthroplasty: Alternative aspects on fixation, design and postoperative treatment2000Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Total knee arthroplasty as a treatment of severe gonarthrosis has become a great success, but tibial component loosening is still a major reason for failure. When total knee arthroplasty was introduced, only all-polyethylene (AP) tibial components were available. Based on mostly theoretical data, AP components were more or less abandoned during the 1980:ies in favor of metal-backed (MB) tibial components. The aim of the present study was to evaluate whether insufficient fixation would result, using an all-polyethylene tibial component instead of a more costly metal-backed prosthesis. Further, to compare different antibiotic loaded bone cements, and to investigate whether post- operative drainage is beneficial in total knee arthroplasty. Radiostereometric analysis (RSA) was used to obtain accurate and standardized evaluations facilitating comparison between prosthetic designs.

    Magnitude and pattern of migration of a moderately conforming AP tibial component was analyzed in 22 patients. Migration was on par with a more conforming previously used frequently, AP component, indicating a favorable prognosis regarding future aseptic loosening. Another 34 arthroplasties with a flat on flat (non-conforming) articulating geometry were randomized to an AP or MB cemented tibial component. There were no differences in migration between the groups. None of the AP implants displayed any continuous migration between 1 and 2 years postoperative. In a similar randomized series of 38 arthroplasties with a semiconstrained articulation, fixation measured with RSA was not inferior for AP implants compared with MB. Both studies indicate a good long-term prognosis using an AP component. A new antibiotic loaded bone cement was prospectively randomized against a more commonly used bone cement in a series of 51 arthroplasties. Neither fixation of the tibial component nor the radiographic and clinical results differed between the cements, indicating a good prognosis for the new cement. Postoperative drainage of knee arthroplasty is widely used. 90 patients were prospectively randomized into three groups: no drain, ordinary drain system and a retransfusable drain system. Postoperative drainage in knee arthroplasty has no adverse clinical consequences but seems not to be necessary.

  • 14.
    Akerlund, Emma
    et al.
    Inst för Experimentell och Klinisk medicin, Linköping.
    Huss, Fredrik R M
    Inst för Experimentell och Klinisk medicin, Linköping.
    Sjöberg, Folke
    Inst för Experimentell och Klinisk medicin, Linköping.
    Burns in Sweden: an analysis of 24,538 cases during the period 1987-2004.2007Inngår i: Burns, ISSN 0305-4179, E-ISSN 1879-1409, Vol. 33, nr 1, s. 31-6Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Burn care is always progressing, but there is little epidemiological information giving a clear picture of the current number of treated burns in Sweden. This study was conducted to provide an update of patients admitted to hospital with burns in Sweden. Data were obtained for all patients who were admitted to hospitals with a primary or secondary diagnosis of burns (ICD-9/10 codes) from 1 January 1987 to 31 December 2004; 24,538 patients were found. Most of the patients were male (69%), giving a male:female ratio of 2.23:1. Children in the age-group 0-4 years old predominated, and accounted for 27% of the study material. The median length of stay was 3 days. Throughout the period 740 patients (3%) died of their burns. Significant reductions in mortality, incidence, and length of stay were seen during the study, which correlates well with other studies. However, most of the reductions were in the younger age-groups. Men accounted for the improved mortality, as female mortality did not change significantly. We think that the improvement in results among patients admitted to hospital after burns is a combination of preventive measures, improved treatment protocols, and an expanding strategy by which burned patients are treated as outpatients.

  • 15.
    Albåge, Anders
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Thoraxkirurgi.
    An important piece of the puzzle for understanding the benefits of concomitant ablation of atrial fibrillation in cardiac surgery2018Inngår i: Annals of Translational Medicine, ISSN 2305-5839, E-ISSN 2305-5847, Vol. 6, nr 11, artikkel-id 223Artikkel i tidsskrift (Annet vitenskapelig)
  • 16.
    Albåge, Anders
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Thoraxkirurgi.
    Postoperative chylothorax: a cause for concern2017Inngår i: Acta Neurochirurgica, ISSN 0001-6268, E-ISSN 0942-0940, Vol. 159, nr 10, s. 2023-2024Artikkel i tidsskrift (Annet vitenskapelig)
  • 17.
    Albåge, Anders
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Thoraxkirurgi.
    Sartipy, Ulrik
    Kenneback, Goran
    Johansson, Birgitta
    Schersten, Henrik
    Jidéus, Lena
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Thoraxkirurgi.
    Long-Term Risk of Ischemic Stroke After the Cox-Maze III Procedure for Atrial Fibrillation2017Inngår i: Annals of Thoracic Surgery, ISSN 0003-4975, E-ISSN 1552-6259, Vol. 104, nr 2, s. 523-529Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background. The long-term risk of stroke after surgical treatment of atrial fibrillation is not well known. We performed an observational cohort study with long follow-up after the "cut-and-sew" Cox-maze III procedure (CM-III), including left atrial appendage excision. The aim was to analyze the incidence of stroke/transient ischemic attack (TIA) and the association to preoperative CHA(2)DS(2)-VASc (age in years, sex, congestive heart failure history, hypertension history, stroke/TIA, thromboembolism history, vascular disease history, diabetes mellitus) score. Methods. Preoperative and perioperative data were collected in 526 CM-III patients operated in four centers 1994 to 2009, 412 men, mean age of 57.1 +/- 8.3 years. The incidence of any stroke/TIA was identified through analyses of the Swedish National Patient and Cause-ofDeath Registers and from review of individual patient records. The cumulative incidence of stroke/TIA and association with CHA(2)DS(2)-VASc score was estimated using methods accounting for the competing risk of death. Results. Mean follow-up was 10.1 years. There were 29 patients with any stroke/TIA, including 6 with intracerebral bleedings (2 fatal) and 4 with perioperative strokes (0.76%). The remaining 13 ischemic strokes and six TIAs occurred at a mean of 7.1 +/- 4.0 years postoperatively, with an incidence of 0.36% per year (19 events per 5,231 patient-years). In all CHA(2)DS(2)-VASc groups, observed ischemic stroke/TIA rate was lower than predicted. A higher risk of ischemic stroke/TIA was seen in patients with CHA(2)DS(2)-VASc score 2 or greater compared with score 0 or 1 (hazards ratio 2.15, 95% confidence interval: 0.87 to 5.32) but no difference by sex or stand-alone versus concomitant operation. No patient had ischemic stroke as cause of death. Conclusions. This multicenter study showed a low incidence of perioperative and long-term postoperative ischemic stroke/TIA after CM-III. Although general risk of ischemic stroke/TIA was reduced, patients with CHA(2)DS(2)-VASc score 2 or greater had a higher risk compared with score 0 or 1. Complete left atrial appendage excision may be an important reason for the low ischemic stroke rate. (C) 2017 by The Society of Thoracic Surgeons

  • 18.
    Alexandersson, Maria
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centrum för klinisk forskning i Sörmland (CKFD). Nyköping Hosp, Dept Orthoped, Nyköping, Sweden.
    Wang, Eugen Yu-Hui
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centrum för klinisk forskning i Sörmland (CKFD). Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Eriksson, Staffan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centrum för klinisk forskning i Sörmland (CKFD). Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för neurovetenskap, Fysioterapi. Umeå Univ, Dept Community Med & Rehabil, Physiotherapy, Umeå, Sweden.
    A small difference in recovery between total knee arthroplasty with and without tourniquet use the first 3 months after surgery: a randomized controlled study2019Inngår i: Knee Surgery, Sports Traumatology, Arthroscopy, ISSN 0942-2056, E-ISSN 1433-7347, Vol. 27, nr 4, s. 1035-1042Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Purpose: When a tourniquet is used during surgery on the extremities, the pressure applied to the muscles, nerves and blood vessels can cause neuromuscular damage that contributes to postoperative weakness. The hypothesis was that the rehabilitation-related results would be improved if total knee arthroplasty (TKA) is performed without the use of a tourniquet.

    Methods: 81 patients with osteoarthritis of the knee who underwent TKA surgery were randomized to surgery with or without tourniquet. Active flexion and extension of the knee, pain by visual analog scale (VAS), swelling by knee circumference, quadriceps function by straight leg raise, and timed up and go (TUG) test results were measured before and up to 3 months after surgery.

    Results: ANCOVA revealed no between-groups effect for flexion of the knee at day 3 postsurgery. Compared with the tourniquet group, the nontourniquet group experienced elevated pain at 24 h, with a mean difference of 16.6 mm, p = 0.005. The effect on mobility (TUG test) at 3 months was better in the nontourniquet group, with a mean difference of -1.1 s, p = 0.029.

    Conclusions: The hypothesis that the rehabilitation-related results would be improved without a tourniquet is not supported by the results. When the results in this study for surgery performed with and without tourniquet are compared, no clear benefit for either procedure was observed, as the more pain exhibited by the nontourniquet group was only evident for a short period and the improved mobility in this group was not at a clinically relevant level.

  • 19.
    Alim, Md Abdul
    et al.
    Integrative Orthopedic Laboratory, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
    Domeij-Arverud, Erica
    Integrative Orthopedic Laboratory, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
    Nilsson, Gunnar
    Integrative Orthopedic Laboratory, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
    Edman, Gunnar
    Department of Psychiatry, Tiohundra AB, Norrtälje, Sweden.
    Ackermann, Paul W
    Integrative Orthopedic Laboratory, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
    Achilles tendon rupture healing is enhanced by intermittent pneumatic compression upregulating collagen type I synthesis2018Inngår i: Knee Surgery, Sports Traumatology, Arthroscopy, ISSN 0942-2056, E-ISSN 1433-7347, Vol. 26, nr 7, s. 2021-2029Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    PURPOSE AND HYPOTHESIS: Adjuvant intermittent pneumatic compression (IPC) during leg immobilization following Achilles tendon rupture (ATR) has been shown to reduce the risk of deep venous thrombosis. The purpose of this study was to investigate whether IPC can also promote tendon healing.

    METHODS: One hundred and fifty patients with surgical repair of acute ATR were post-operatively leg immobilized and prospectively randomized. Patients were allocated for 2 weeks of either adjuvant IPC treatment (n = 74) or treatment-as-usual (n = 74) in a plaster cast without IPC. The IPC group received 6 h daily bilateral calf IPC applied under an orthosis on the injured side. At 2 weeks post-operatively, tendon healing was assessed using microdialysis followed by enzymatic quantification of tendon callus production, procollagen type I (PINP) and type III (PIIINP) N-terminal propeptide, and total protein content. 14 IPC and 19 cast patients (control group) consented to undergo microdialysis. During weeks 3-6, all subjects were leg-immobilized in an orthosis without IPC. At 3 and 12 months, patient-reported outcome was assessed using reliable questionnaires (ATRS and EQ-5D). At 12 months, functional outcome was measured using the validated heel-rise test.

    RESULTS: At 2 weeks post-rupture, the IPC-treated patients exhibited 69% higher levels of PINP in the ruptured Achilles tendon (AT) compared to the control group (p = 0.001). Interestingly, the IPC-treated contralateral, intact AT also demonstrated 49% higher concentrations of PINP compared to the non-treated intact AT of the plaster cast group (p = 0.002). There were no adverse events observed associated with IPC. At 3 and 12 months, no significant (n.s.) differences between the two treatments were observed using patient-reported and functional outcome measures.

    CONCLUSIONS: Adjuvant IPC during limb immobilization in patients with ATR seems to effectively enhance the early healing response by upregulation of collagen type I synthesis, without any adverse effects. Whether prolonged IPC application during the whole immobilization period can also lead to improved long-term clinical healing response should be further investigated. The healing process during leg immobilization in patients with Achilles tendon rupture can be improved through adjuvant IPC therapy, which additionally prevents deep venous thrombosis.

    LEVEL OF EVIDENCE: Randomized controlled trial, Level I.

  • 20.
    Almby, Kristina E.
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Klinisk diabetologi och metabolism. Akademiska Sjukhuset.
    Edholm, David
    Department of Surgery and Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.
    Anastomotic Strictures After Roux-en-Y Gastric Bypass: a Cohort Study from the Scandinavian Obesity Surgery Registry2019Inngår i: Obesity Surgery, ISSN 0960-8923, E-ISSN 1708-0428, Vol. 29, nr 1, s. 172-177Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background

    Roux-en-Y gastric bypass (RYGB) is the most common bariatric procedure worldwide. Anastomotic stricture is a known complication of RYGB. The aim was to explore the incidence and outcomes of strictures within the Scandinavian Obesity Surgery Registry (SOReg).

    Method

    SOReg included prospective data from 36,362 patients undergoing bariatric surgery in the years 2007–2013. Outcomes were recorded at 30-day and at 1-year follow-up according to the standard SOReg routine. The medical charts of patients suffering from stricture after RYGB were requested and assessed.

    Setting

    National bariatric surgery registry

    Results

    Anastomotic stricture within 1 year of surgery was confirmed in 101 patients representing an incidence of 0.3%. Risk factors for stricture were patient age above 60 years (odds ratio (OR), 6.2 95% confidence interval (CI) 2.7–14.3), circular stapled gastrojejunostomy (OR 2.7, 95% CI 1.4–5.5), postoperative anastomotic leak (OR 8.9 95%, CI 4.7–17.0), and marginal ulcer (OR 30.0, 95% CI 19.2–47.0). Seventy-five percent of the strictures were diagnosed within 70 days of surgery. Two dilatations or less was sufficient to successfully treat 50% of patients. Ten pecent of patients developed perforation during dilatation, and the risk of perforating at each dilatation was 3.8%. Perforation required surgery in six cases but there was no mortality. Strictures in SOReg may be underreported, which could explain the low incidence in the study.

    Conclusion

    Most strictures present within 2 months and are successfully treated with two dilatations or less. Dilating a strictured gastrojejunostomy entails a risk of perforation (3.8%).

  • 21.
    An, Feng-Wei
    et al.
    Chinese Peoples Liberat Army Gen Hosp, Dept Otolaryngol & Head Neck Surg, Beijing, Peoples R China;Chinese PLA Med Sch, Key Lab Hearing Impairment Sci, Minist Educ, Key Lab Hearing Impairment Prevent & Treatment Be, Beijing, Peoples R China.
    Yuan, Hu
    Chinese Peoples Liberat Army Gen Hosp, Dept Otolaryngol & Head Neck Surg, Beijing, Peoples R China;Chinese PLA Med Sch, Key Lab Hearing Impairment Sci, Minist Educ, Key Lab Hearing Impairment Prevent & Treatment Be, Beijing, Peoples R China.
    Guo, Weiwei
    Chinese Peoples Liberat Army Gen Hosp, Dept Otolaryngol & Head Neck Surg, Beijing, Peoples R China;Chinese PLA Med Sch, Key Lab Hearing Impairment Sci, Minist Educ, Key Lab Hearing Impairment Prevent & Treatment Be, Beijing, Peoples R China.
    Hou, Zhao-Hui
    Chinese Peoples Liberat Army Gen Hosp, Dept Otolaryngol & Head Neck Surg, Beijing, Peoples R China;Chinese PLA Med Sch, Key Lab Hearing Impairment Sci, Minist Educ, Key Lab Hearing Impairment Prevent & Treatment Be, Beijing, Peoples R China.
    Cai, Jian-Ming
    Chinese Peoples Liberat Army Gen Hosp, Dept Radiol, Beijing, Peoples R China.
    Luo, Chun-Cai
    Chinese Peoples Liberat Army Gen Hosp, Dept Radiol, Beijing, Peoples R China.
    Yu, Ning
    Chinese Peoples Liberat Army Gen Hosp, Dept Otolaryngol & Head Neck Surg, Beijing, Peoples R China;Chinese PLA Med Sch, Key Lab Hearing Impairment Sci, Minist Educ, Key Lab Hearing Impairment Prevent & Treatment Be, Beijing, Peoples R China.
    Jiang, Qing-Qing
    Chinese Peoples Liberat Army Gen Hosp, Dept Otolaryngol & Head Neck Surg, Beijing, Peoples R China;Chinese PLA Med Sch, Key Lab Hearing Impairment Sci, Minist Educ, Key Lab Hearing Impairment Prevent & Treatment Be, Beijing, Peoples R China.
    Cheng, Wei
    Chinese Peoples Liberat Army Gen Hosp, Dept Otolaryngol & Head Neck Surg, Beijing, Peoples R China;Chinese PLA Med Sch, Key Lab Hearing Impairment Sci, Minist Educ, Key Lab Hearing Impairment Prevent & Treatment Be, Beijing, Peoples R China.
    Liu, Wei
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Öron-, näs- och halssjukdomar.
    Yang, Shi-Ming
    Chinese PLA Med Sch, Key Lab Hearing Impairment Sci, Minist Educ, Key Lab Hearing Impairment Prevent & Treatment Be, Beijing, Peoples R China.
    Establishment of a Large Animal Model for Eustachian Tube Functional Study in Miniature Pigs2019Inngår i: Anatomical Record Part A-discoveries in Molecular Cellular and Evolutionary Biology, ISSN 1552-4884, E-ISSN 1932-8494, Vol. 302, nr 6, s. 1024-1038Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This study was performed to investigate whether miniature pigs are a suitable animal model for studies of the Eustachian tube (ET). Sixteen Chinese experimental miniature pigs were used in this investigation. Ten animals were used for anatomical and morphometric analyses to obtain qualitative and quantitative information regarding the ET. Three animals were used for histological analysis to determine the fine structure of ET cross-sections. Three animals were used to investigate the feasibility of balloon dilation of the Eustachian tube (BDET). The anatomical study indicated that the pharyngeal orifice and tympanic orifice of the miniature pig ET are located at the posterior end of the nasal lateral wall and anterior wall of the middle ear cavity, respectively. The cartilaginous tube was seen to pass through the whole length of the ET, the length of the cartilaginous part of the ET and the diameter of the isthmus were similar between humans and miniature pigs. The inclination of the ET in miniature pigs was larger than that in humans. The gross histology seemed to be slightly different between miniature pig and human, but the fine structures were essentially the same in both species. BDET experiments verified that the miniature pig model is suitable as a model for clinical operations. The miniature pig ET corresponds very well to that of humans. In addition, the miniature pig ET is suitable as a model for clinical operations. Therefore, the miniature pig is a valid animal model for ET study. 

  • 22.
    Analatos, Apostolos
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centrum för klinisk forskning i Sörmland (CKFD). Karolinska Univ Hosp, Ctr Digest Dis, Stockholm, Sweden; Karolinska Inst, Dept Clin Intervent & Technol CLINTEC, Div Surg, Stockholm, Sweden; Nykoping Hosp, Dept Surg, Nykoping, Sweden.
    Lindblad, Mats
    Karolinska Univ Hosp, Ctr Digest Dis, Stockholm, Sweden; Karolinska Inst, Dept Clin Intervent & Technol CLINTEC, Div Surg, Stockholm, Sweden.
    Rouvelas, Ioannis
    Karolinska Univ Hosp, Ctr Digest Dis, Stockholm, Sweden; Karolinska Inst, Dept Clin Intervent & Technol CLINTEC, Div Surg, Stockholm, Sweden.
    Elbe, Peter
    Karolinska Univ Hosp, Ctr Digest Dis, Stockholm, Sweden; Karolinska Inst, Dept Clin Intervent & Technol CLINTEC, Div Surg, Stockholm, Sweden.
    Lundell, Lars
    Karolinska Univ Hosp, Ctr Digest Dis, Stockholm, Sweden; Karolinska Inst, Dept Clin Intervent & Technol CLINTEC, Div Surg, Stockholm, Sweden.
    Nilsson, Magnus
    Karolinska Univ Hosp, Ctr Digest Dis, Stockholm, Sweden; Karolinska Inst, Dept Clin Intervent & Technol CLINTEC, Div Surg, Stockholm, Sweden.
    Tsekrekos, Andrianos
    Karolinska Univ Hosp, Ctr Digest Dis, Stockholm, Sweden; Karolinska Inst, Dept Clin Intervent & Technol CLINTEC, Div Surg, Stockholm, Sweden.
    Tsai, Jon A.
    Karolinska Univ Hosp, Ctr Digest Dis, Stockholm, Sweden; Karolinska Inst, Dept Clin Intervent & Technol CLINTEC, Div Surg, Stockholm, Sweden.
    Evaluation of resection of the gastroesophageal junction and jejunal interposition (Merendino procedure) as a rescue procedure in patients with a failed redo antireflux procedure. A single-center experience2018Inngår i: BMC Surgery, ISSN 1471-2482, E-ISSN 1471-2482, Vol. 18, artikkel-id 70Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background: Primary antireflux surgery has high success rates but 5 to 20% of patients undergoing antireflux operations can experience recurrent reflux and dysphagia, requiring reoperation. Different surgical approaches after failed fundoplication have been described in the literature. The aim of this study was to evaluate resection of the gastroesophageal junction with jejunal interposition (Merendino procedure) as a rescue procedure after failed fundoplication.

    Methods: All patients who underwent a Merendino procedure at the Karolinska University Hospital between 2004 and 2012 after a failed antireflux fundoplication were identified. Data regarding previous surgical history, preoperative workup, postoperative complications, subsequent investigations and re-interventions were collected retrospectively. The follow-up also included questionnaires regarding quality of life, gastrointestinal function and the dumping syndrome.

    Results: Twelve patients had a Merendino reconstruction. Ten patients had undergone at least two previous fundoplications, of which one patient had four such procedures. The main indication for surgery was epigastric and radiating back pain, with or without dysphagia. Postoperative complications occurred in 8/12 patients (67%). During a median follow-up of 35 months (range 20-61), four (25%) patients had an additional redo procedure with conversion to a Roux-en-Y esophagojejunostomy within 12 months, mainly due to obstructive symptoms that could not be managed conservatively or with endoscopic techniques. Questionnaires scores were generally poor in all dimensions.

    Conclusions: In our experience, the Merendino procedure seems to be an unsuitable surgical option for patients who require an alternative surgical reconstruction due to a failed fundoplication. However, the small number of patients included in this study as well as the small number of participants who completed the postoperative workout limits this study.

  • 23.
    Anderberg, Leif
    et al.
    Lunds universitet.
    Aldskogius, Håkan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för neurovetenskap, Neuroanatomi.
    Holtz, Anders
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för neurovetenskap, Neurokirurgi.
    Spinal cord injury: scientific challenges for the unknown future2007Inngår i: Upsala Journal of Medical Sciences, ISSN 0300-9734, E-ISSN 2000-1967, Vol. 112, nr 3, s. 259-288Artikkel, forskningsoversikt (Annet vitenskapelig)
    Abstract [en]

    The history of spinal cord injuries starts with the ancient Egyptian medical papyrus known as the Edwin Smith Surgical Papyrus. The papyrus, written about 2500 B. C. by the physician and architect of the Sakkara pyramids Imhotep, describes "crushed vertebra in his neck" as well as symptoms of neurological deterioration. An ailment not to be treated was the massage to the patients at that time. This fatalistic attitude remained until the end of World War II when the first rehabilitation centre focused on the rehabilitation of spinal cord injured patients was opened. Our knowledge of the pathophysiological processes, both the primary as well as the secondary, has increased tremendously. However, all this knowledge has only led to improved medical care but not to any therapeutic method to restore, even partially, the neurological function. Neuroprotection is defined as measures to counteract secondary injury mechanisms and/or limit the extent of damage caused by self-destructive cellular and tissue processes. The co-existence of several distinctly different injury mechanisms after trauma has provided opportunities to explore a large number of potentially neuroprotective agents in animal experiments such as methylprednisolone sodium succinate. The results of this research have been very discouraging and pharmacological neuroprotection for patients with spinal cord injury has fallen short of the expectations created by the extensive research and promising observations in animal experiments. The focus of research has now, instead, been transformed to the field of neural regeneration. This field includes the discovery of regenerating obstacles in the nerve cell and/or environmental factors but also various regeneration strategies such as bridging the gap at the site of injury as well as transplantation of foetal tissue and stem cells. The purpose of this review is to highlight selected experimental and clinical studies that form the basis for undertaking future challenges in the research field of spinal cord injury. We will focus our discussion on methods either preventing the consequences of secondary injury in the acute period ( neuroprotection) and/or various techniques of neural regeneration in the sub-acute and chronic phase and finally expose some thoughts about future avenues within this scientific field.

  • 24. Andersen, Lise Geisler
    et al.
    Ängquist, Lars
    Gamborg, Michael
    Byberg, Liisa
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Ortopedi.
    Bengtsson, Calle
    Canoy, Dexter
    Eriksson, Johan G.
    Eriksson, Marit
    Järvelin, Marjo-Riitta
    Lissner, Lauren
    Nilsen, Tom I.
    Osler, Merete
    Overvad, Kim
    Rasmussen, Finn
    Salonen, Minna K.
    Schack-Nielsen, Lene
    Tammelin, Tuija H.
    Tuomainen, Tomi-Pekka
    Sørensen, Thorkild I. A.
    Baker, Jennifer L.
    Birth weight in relation to leisure time physical activity in adolescence and adulthood: meta-analysis of results from 13 nordic cohorts2009Inngår i: PloS one, ISSN 1932-6203, Vol. 4, nr 12, s. e8192-Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND: Prenatal life exposures, potentially manifested as altered birth size, may influence the later risk of major chronic diseases through direct biologic effects on disease processes, but also by modifying adult behaviors such as physical activity that may influence later disease risk. METHODS/PRINCIPAL FINDINGS: We investigated the association between birth weight and leisure time physical activity (LTPA) in 43,482 adolescents and adults from 13 Nordic cohorts. Random effects meta-analyses were performed on categorical estimates from cohort-, age-, sex- and birth weight specific analyses. Birth weight showed a reverse U-shaped association with later LTPA; within the range of normal weight the association was negligible but weights below and above this range were associated with a lower probability of undertaking LTPA. Compared with the reference category (3.26-3.75 kg), the birth weight categories of 1.26-1.75, 1.76-2.25, 2.26-2.75, and 4.76-5.25 kg, had odds ratios of 0.67 (95% confidence interval: 0.47, 0.94), 0.72 (0.59, 0.88), 0.89 (0.79, 0.99), and 0.65 (0.50, 0.86), respectively. The shape and strength of the birth weight-LTPA association was virtually independent of sex, age, gestational age, educational level, concurrent body mass index, and smoking. CONCLUSIONS/SIGNIFICANCE: The association between birth weight and undertaking LTPA is very weak within the normal birth weight range, but both low and high birth weights are associated with a lower probability of undertaking LTPA, which hence may be a mediator between prenatal influences and later disease risk.

  • 25.
    Andersson, Gerhard
    Uppsala universitet, Medicinska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Clinical Aspects of Tinnitus- Course, Cognition, PET, and the Internet2000Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    The purpose of this thesis was to develop novel ways to study tinnitus, to investigate the course of tinnitus, and to study the effects of cognitive-behaviour therapy on tinnitus related distress. Data from 377 tinnitus patients were collected.

    A group of 216 patients completed audiological measures and were assessed in a structured interview. The Klockhoff and Lindblom's grading system was used and its inter-rater reliability assessed in a subsample showing a high degree of correspondence. A discriminant analysis showed that a substantial proportion of patients could be correctly classified into grade II or III, by measures of pitch, minimal masking level of tinnitus, avoidance of situations because of tinnitus, and tolerance in relation to onset.

    Using tests developed in cognitive psychology, it was found that tinnitus patients had impaired performance. There was no evidence for an attentional bias towards tinnitus related words using a computerized emotional Stroop task, but masking sounds of an "on-and-off" character were more disruptive than constant masking when patients performed the digit-symbol test. It is suggested that tinnitus distress may be increased by the 'changing-state' character of the tinnitus signal, or alternatively by intermittent masking sounds.

    In a case-study a patient received an i.v. injection of lidocaine while Positron Emission Tomograpy was conducted. The brain activity associated with tinnitus included the left primary, secondary and integrative auditory brain areas, as well as right paralimbic areas related to negative feelings. The precuneus (Brodmann area 7) might be a brain area involved in the aversiveness associated with tinnitus.

    Using a tinnitus questionnaire as the dependent measure it was found that tinnitus maskability at admission predicted distress at follow-up for an average of five years following admission. Some improvement in tinnitus occurred over time, but this was more evident in patients who had received a cognitive-behavioural treatment program.

    The effect of an Internet based cognitive-behavioural self-help treatment program for tinnitus was investigated showing a high dropout rate, but with positive results in that the treated patients improved.

  • 26. Andersson, Roland
    et al.
    Hellman, Per
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Experimentell kirurgi.
    Johansson, Jan
    Lagergren, Jesper
    Martling, Anna
    Naredi, Peter
    Nilsson, Magnus
    Sund, Malin
    Selektiv nivåstrukturering av svensk kirurgi behövs.2018Inngår i: Läkartidningen, ISSN 0023-7205, E-ISSN 1652-7518, Vol. 115, artikkel-id E76EArtikkel i tidsskrift (Fagfellevurdert)
  • 27.
    Andersson, Yvette
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Sentinel Node in Clinical Practice: Implications for Breast Cancer Treatment and Prognosis2012Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    The introduction of sentinel lymph node biopsy (SLNB) has conveyed several new issues, such as the risk of false negativity, long-term consequences, the prognostic significance of micrometastases and whether ALND can be omitted in sentinel lymph node- (SLN) positive patients.

    Archived SLN specimens from 50 false negative patients and 107 true negative controls were serially sectioned and stained with immunohistochemistry. The detection rate of previously unknown metastases did not differ between the false and the true negative patients. The risk of false negativity was higher in patients with multifocal or hormone receptor-negative tumours, or if only one SLN was found.

    In a Swedish multicentre cohort, 2216 SLN-negative patients in whom ALND was omitted were followed up for a median of 65 months. The isolated axillary recurrence rate was only 1.0%, and the overall survival was high (93%).

    The survival of 3369 breast cancer patients (2383 node-negative (pN0), 107 isolated tumour cells (pN0(i+), 123 micrometastases (pN1mi) and 756 macrometastases (pN1)) was analysed. The 5-year cause-specific and event-free survival was worse for pN1mi and pN1 patients than for pN0 patients. There was no difference in survival between pN0(i+) and pN0 patients.

    Tumour and SLN characteristics in 869 SLN-positive patients were compared between those with and without non-SLN metastases, and the Tenon score was calculated. The risk of non-SLN metastases was higher in case of SLN macrometastases (compared with micrometastases), a high positive/total SLN ratio and Elston grade 3 tumours, and increased with increasing tumour size. The area under the curve (AUC) for the Tenon score was 0.65, and the test thus performed inadequately in this population.

    In conclusion, despite the risk of false negativity, SLNB with omission of ALND in SLN-negative patients appears to be safe even in the long term. The presence of micrometastases is of prognostic importance and should entail adjuvant treatment. The need for ALND in patients with SLN micro- and even macrometastases has been questioned, but the occurrence of non-SLN metastases is hard to predict, and strong evidence for the safe omission of ALND is lacking.

    Delarbeid
    1. Serial sectioning of breast cancer sentinel nodes does not significantly improve false negativity rate
    Åpne denne publikasjonen i ny fane eller vindu >>Serial sectioning of breast cancer sentinel nodes does not significantly improve false negativity rate
    Vise andre…
    (engelsk)Manuskript (preprint) (Annet vitenskapelig)
    Emneord
    breast cancer, sentinel node, false negativity, serial sectioning
    HSV kategori
    Identifikatorer
    urn:nbn:se:uu:diva-171038 (URN)
    Tilgjengelig fra: 2012-03-15 Laget: 2012-03-15 Sist oppdatert: 2012-08-01
    2. Axillary recurrence rate 5 years after negative sentinel node biopsy for breast cancer
    Åpne denne publikasjonen i ny fane eller vindu >>Axillary recurrence rate 5 years after negative sentinel node biopsy for breast cancer
    Vise andre…
    2012 (engelsk)Inngår i: British Journal of Surgery, ISSN 0007-1323, E-ISSN 1365-2168, Vol. 99, nr 2, s. 226-231Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    BACKGROUND: Sentinel lymph node (SLN) biopsy has replaced axillary lymph node dissection (ALND) as the standard axillary staging procedure in breast cancer. Follow-up studies in SLN-negative women treated without ALND report low rates of axillary recurrence, but most studies have short follow-up, and few are multicentre studies.

    METHODS: Between September 2000 and January 2004, patients who were SLN-negative and did not have ALND were included in a prospective cohort. Kaplan-Meier estimates were used to analyse the rates of axillary recurrence and survival. The risk of axillary recurrence was also compared in centres with high and low experience with the SLN biopsy (SLNB) technique.

    RESULTS: A total of 2195 patients with 2216 breast tumours were followed for a median of 65 months. Isolated axillary recurrence was diagnosed in 1·0 per cent of patients. The event-free 5-year survival rate was 88·8 per cent and the overall 5-year survival rate 93·1 per cent. There was no difference in recurrence rates between centres contributing fewer than 150 SLNB procedures to the cohort and centres contributing 150 or more procedures.

    CONCLUSION: This study confirmed the low risk of axillary recurrence 5 years after SLNB for breast cancer without ALND.

    HSV kategori
    Identifikatorer
    urn:nbn:se:uu:diva-171035 (URN)10.1002/bjs.7820 (DOI)000303148200012 ()22180063 (PubMedID)
    Tilgjengelig fra: 2012-03-15 Laget: 2012-03-15 Sist oppdatert: 2017-12-07bibliografisk kontrollert
    3. Breast Cancer Survival in Relation to the Metastatic Tumor Burden in Axillary Lymph Nodes
    Åpne denne publikasjonen i ny fane eller vindu >>Breast Cancer Survival in Relation to the Metastatic Tumor Burden in Axillary Lymph Nodes
    Vise andre…
    2010 (engelsk)Inngår i: Journal of Clinical Oncology, ISSN 0732-183X, E-ISSN 1527-7755, Vol. 28, nr 17, s. 2868-2873Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    Purpose The aim of this study was to determine the prognostic significance of lymph node micrometastases in patients with breast cancer. Patients and Methods Between September 2000 and January 2004, 3,369 patients with breast cancer were included in a prospective cohort. According to their lymph node status, they were classified in the following four groups: 2,383 were node negative, 107 had isolated tumor cells, 123 had micrometastases, and 756 had macrometastases. Median follow-up time was 52 months. Kaplan-Meier estimates and the multivariate Cox proportional hazard regression model were used to analyze survival. Results Five-year cause-specific and event-free survival rates were lower for patients with micrometastases (pN1mi) than for node-negative (pN0) patients (94.1% v 96.9% and 79.6% v 87.1%, respectively; P = .020 and P = .032, respectively). There was no significant survival difference between node-negative patients and those with isolated tumor cells. The overall survival of pN1mi and pN0 patients did not differ. Conclusion This study demonstrates a worse prognosis for patients with micrometastases than for node-negative patients.

    HSV kategori
    Identifikatorer
    urn:nbn:se:uu:diva-135559 (URN)10.1200/JCO.2009.24.5001 (DOI)000278548000010 ()
    Tilgjengelig fra: 2010-12-14 Laget: 2010-12-07 Sist oppdatert: 2017-12-11bibliografisk kontrollert
    4. Prediction of non-sentinel lymph node status in breast cancer patients with sentinel lymph node metastases: evaluation of the tenon score
    Åpne denne publikasjonen i ny fane eller vindu >>Prediction of non-sentinel lymph node status in breast cancer patients with sentinel lymph node metastases: evaluation of the tenon score
    2012 (engelsk)Inngår i: Breast Cancer : Basic and Clinical Research, ISSN 1178-2234, E-ISSN 1178-2234, Vol. 6, s. 31-38Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    INTRODUCTION:

    Current guidelines recommend completion axillary lymph node dissection (cALND) in case of a sentinel lymph node (SLN) metastasis larger than 0.2 mm. However, in 50%-65% of these patients, the non-SLNs contain no further metastases and cALND provides no benefit. Several nomograms and scoring systems have been suggested to predict the risk of metastases in non-SLNs. We have evaluated the Tenon score.

    PATIENTS AND METHODS:

    In a retrospective review of the Swedish Sentinel Node Multicentre Cohort Study, risk factors for additional metastases were analysed in 869 SLN-positive patients who underwent cALND, using uni- and multivariate logistic regression models. A receiver operating characteristic (ROC) curve was drawn on the basis of the sensitivity and specificity of the Tenon score, and the area under the curve (AUC) was calculated.

    RESULTS:

    Non-SLN metastases were identified in 270/869 (31.1%) patients. Tumour size and grade, SLN status and ratio between number of positive SLNs and total number of SLNs were significantly associated with non-SLN status in multivariate analyses. The area under the curve for the Tenon score was 0.65 (95% CI 0.61-0.69). In 102 patients with a primary tumour <2 cm, Elston grade 1-2 and SLN metastases ≤2 mm, the risk of non SLN metastasis was less than 10%.

    CONCLUSION:

    The Tenon score performed inadequately in our material and we could, based on tumour and SLN characteristics, only define a very small group of patients in which negative non-sentinel nodes could be predicted.

    HSV kategori
    Identifikatorer
    urn:nbn:se:uu:diva-171037 (URN)10.4137/BCBCR.S8642 (DOI)22346360 (PubMedID)
    Tilgjengelig fra: 2012-03-15 Laget: 2012-03-15 Sist oppdatert: 2017-12-07bibliografisk kontrollert
  • 28.
    Andersson, Yvette
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centrum för klinisk forskning, Västerås. Vastmanland Cty Hosp, Dept Surg, SE-72189 Vasteras, Sweden.
    Bergkvist, Leif
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centrum för klinisk forskning, Västerås. Vastmanland Cty Hosp, Dept Surg, SE-72189 Vasteras, Sweden.
    Frisell, J.
    Karolinska Univ Hosp, Dept Breast & Endocrine Surg, Stockholm, Sweden;Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden.
    de Boniface, J.
    Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden;Capio St Gorans Hosp, Dept Surg, Stockholm, Sweden.
    Do clinical trials truly mirror their target population?: An external validity analysis of national register versus trial data from the Swedish prospective SENOMIC trial on sentinel node micrometastases in breast cancer2019Inngår i: Breast Cancer Research and Treatment, ISSN 0167-6806, E-ISSN 1573-7217, Vol. 177, nr 2, s. 469-475Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Purpose: Increasing evidence suggests that completion axillary lymph node dissection (ALND) may be omitted in breast cancer patients with limited axillary nodal metastases. However, the representativeness of trial participants for the original clinical practice population, and thus, the generalizability of published trials have been questioned. We propose the use of background data from national registers as a means to assess whether trial participants mirror their target population and to strengthen the generalizability and implementation of trial outcomes.

    Methods: The Swedish prospective SENOMIC trial, omitting a completion ALND in breast cancer patients with sentinel lymph node micrometastases, reached full target accrual in 2017. To assess the generalizability of trial results for the target population, a comparative analysis of trial participants versus cases reported to the Swedish National Breast Cancer Register (NKBC) was performed.

    Results: Comparing 548 trial participants and 1070 NKBC cases, there were no significant differences in age, tumor characteristics, breast surgery, or adjuvant treatment. Only the mean number of sentinel lymph nodes with micrometastasis per individual was lower in trial participants than in register cases (1.06 vs. 1.09, p=0.037).

    Conclusions: Patients included in the SENOMIC trial are acceptably representative of the Swedish breast cancer target population. There were some minor divergences between trial participants and the NKBC population, but taking these into consideration, upcoming trial outcomes should be generalizable to breast cancer patients with micrometastases in their sentinel lymph node biopsy.

  • 29.
    Andersson, Yvette
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centrum för klinisk forskning, Västerås. Vastmanland Cty Hosp, Dept Surg, S-72189 Vasteras, Sweden.
    Bergkvist, Leif
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centrum för klinisk forskning, Västerås. Vastmanland Cty Hosp, Dept Surg, S-72189 Vasteras, Sweden.
    Frisell, J.
    Karolinska Univ Hosp, Dept Breast & Endocrine Surg, Stockholm, Sweden;Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden.
    de Boniface, J.
    Capio St Gorans Hosp, Dept Surg, Stockholm, Sweden;Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden.
    Long-term breast cancer survival in relation to the metastatic tumor burden in axillary lymph nodes2018Inngår i: Breast Cancer Research and Treatment, ISSN 0167-6806, E-ISSN 1573-7217, Vol. 171, nr 2, s. 359-369Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Purpose: The clinical significance of lymph node micrometastases and isolated tumor cells (ITCs) in breast cancer is still controversial. After a median follow-up of 52 months, a report from the Swedish Multicenter Cohort Study presented a worse cancer-specific and event-free survival for patients with micrometastases than node-negative individuals, but could not demonstrate a significant difference in overall survival (OS). Due to the tendency of breast cancer to relapse after more than 5-10 years, we now report the long-term survival of the cohort.

    Methods: Between September 2000 and January 2004, 3355 breast cancer patients were included in a prospective cohort. Sentinel lymph node biopsy was always performed. Patients were classified in four groups according to their overall nodal stage: node negative (N0, 2372), ITCs (113), micrometastases (123), and macrometastases (747). Kaplan-Meier survival estimates and Cox proportional hazard regression models were applied.

    Results: Median follow-up was 156 months. Ten-year cancer-specific survival and OS were significantly lower in case of micrometastases than in N0 (84.7 vs. 93.5%, p = 0.001, and 75.5 vs. 84.2%, p = 0.046, respectively). In case of macrometastases, corresponding survival rates were 82.8 and 74.3%. Only for those aged less than 50 years, cancer-specific survival and OS were significantly worse in case of ITCs than N0. Patients with micrometastases received less often chemotherapy than those with macrometastases (24.4 vs. 53.9%).

    Conclusions: Lymph node micrometastases in breast cancer have a prognostic significance. This study demonstrates a similar survival for patients with micrometastases and those with macrometastases, possibly due to systemic undertreatment.

  • 30. Andersson, Yvette
    et al.
    de Boniface, J
    Jönsson, P-E
    Ingvar, C
    Liljegren, G
    Bergkvist, Leif
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centrum för klinisk forskning, Västerås.
    Frisell, J
    Axillary recurrence rate 5 years after negative sentinel node biopsy for breast cancer2012Inngår i: British Journal of Surgery, ISSN 0007-1323, E-ISSN 1365-2168, Vol. 99, nr 2, s. 226-231Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND: Sentinel lymph node (SLN) biopsy has replaced axillary lymph node dissection (ALND) as the standard axillary staging procedure in breast cancer. Follow-up studies in SLN-negative women treated without ALND report low rates of axillary recurrence, but most studies have short follow-up, and few are multicentre studies.

    METHODS: Between September 2000 and January 2004, patients who were SLN-negative and did not have ALND were included in a prospective cohort. Kaplan-Meier estimates were used to analyse the rates of axillary recurrence and survival. The risk of axillary recurrence was also compared in centres with high and low experience with the SLN biopsy (SLNB) technique.

    RESULTS: A total of 2195 patients with 2216 breast tumours were followed for a median of 65 months. Isolated axillary recurrence was diagnosed in 1·0 per cent of patients. The event-free 5-year survival rate was 88·8 per cent and the overall 5-year survival rate 93·1 per cent. There was no difference in recurrence rates between centres contributing fewer than 150 SLNB procedures to the cohort and centres contributing 150 or more procedures.

    CONCLUSION: This study confirmed the low risk of axillary recurrence 5 years after SLNB for breast cancer without ALND.

  • 31. Andersson, Yvette
    et al.
    Frisell, J
    de Boniface, J
    Bergkvist, Leif
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centrum för klinisk forskning, Västerås.
    Prediction of non-sentinel lymph node status in breast cancer patients with sentinel lymph node metastases: evaluation of the tenon score2012Inngår i: Breast Cancer : Basic and Clinical Research, ISSN 1178-2234, E-ISSN 1178-2234, Vol. 6, s. 31-38Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    INTRODUCTION:

    Current guidelines recommend completion axillary lymph node dissection (cALND) in case of a sentinel lymph node (SLN) metastasis larger than 0.2 mm. However, in 50%-65% of these patients, the non-SLNs contain no further metastases and cALND provides no benefit. Several nomograms and scoring systems have been suggested to predict the risk of metastases in non-SLNs. We have evaluated the Tenon score.

    PATIENTS AND METHODS:

    In a retrospective review of the Swedish Sentinel Node Multicentre Cohort Study, risk factors for additional metastases were analysed in 869 SLN-positive patients who underwent cALND, using uni- and multivariate logistic regression models. A receiver operating characteristic (ROC) curve was drawn on the basis of the sensitivity and specificity of the Tenon score, and the area under the curve (AUC) was calculated.

    RESULTS:

    Non-SLN metastases were identified in 270/869 (31.1%) patients. Tumour size and grade, SLN status and ratio between number of positive SLNs and total number of SLNs were significantly associated with non-SLN status in multivariate analyses. The area under the curve for the Tenon score was 0.65 (95% CI 0.61-0.69). In 102 patients with a primary tumour <2 cm, Elston grade 1-2 and SLN metastases ≤2 mm, the risk of non SLN metastasis was less than 10%.

    CONCLUSION:

    The Tenon score performed inadequately in our material and we could, based on tumour and SLN characteristics, only define a very small group of patients in which negative non-sentinel nodes could be predicted.

  • 32.
    Andersson, Yvette
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Frisell, Jan
    Insititution of Molecular Medicine and Surgery, Karolinska Institutet.
    Sylvan, Maria
    Department of Pathology, Karolinska University Hospital.
    de Boniface, Jana
    Insititution of Molecular Medicine and Surgery, Karolinska Institutet.
    Bergkvist, Leif
    Centre for Clinical Research Uppsala University.
    Serial sectioning of breast cancer sentinel nodes does not significantly improve false negativity rateManuskript (preprint) (Annet vitenskapelig)
  • 33.
    Andréasson, Håkan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kolorektalkirurgi.
    Pseudomyxoma Peritonei: Aspects of Natural History, Learning Curve, Treatment Outcome and Prognostic Factors2013Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Pseudomyxoma peritonei (PMP) is a rare disease characterized by mucinous peritoneal metastasis (PM). Different loco-regional treatment strategies, i.e. debulking surgery and cytoreductive surgery (CRS) in combination with hyperthermic intraperitoneal chemotherapy (HIPEC), have changed the prognosis for these patients. CRS is an aggressive surgical procedure with a long learning curve. PMP exists in different types; how many depends on which classification is used.

    The aims of this thesis were to investigate the time-frame of PMP development from an isolated appendiceal neoplasm, examine the learning process for CRS, evaluate the differences in treatment outcome between debulking surgery and CRS in combination with HIPEC, to evaluate a more detailed PMP classification and to investigate particularly interesting new cysteine-histidine (PINCH) protein as a prognostic factor for PMP.

    Retrospectively 26 PMP patients were identified as having had an appendectomy with a neoplasm in the appendix but with no evidence of PM at the appendectomy. They were treated for PMP within a median of 13.1 months (3.8-95.3) after the appendectomy. No difference was seen between the types of PMP regarding the time to a clinically significant development of PMP and how much tumour was found at treatment. CRS is a highly invasive treatment and stabilization in the learning curve was seen after 220±10 procedures. Patients treated with CRS+HIPEC had a better 5-year overall survival (OS) than patients treated with debulking surgery, 74% vs. 40%. CRS increased the rate of complete cytoreduction from 25% in patients treated with debulking surgery to 72%. The new four-grade PMP classification showed very good inter-rater agreement between two independent pathologists and a difference in survival rates was observed between the different grades. A positive PINCH staining was recorded in 83% of the tumours and that was associated with poorer survival.

    Delarbeid
    1. The natural history of pseudomyxoma peritonei- the early phase
    Åpne denne publikasjonen i ny fane eller vindu >>The natural history of pseudomyxoma peritonei- the early phase
    (engelsk)Manuskript (preprint) (Annet vitenskapelig)
    HSV kategori
    Identifikatorer
    urn:nbn:se:uu:diva-197430 (URN)
    Tilgjengelig fra: 2013-03-25 Laget: 2013-03-25 Sist oppdatert: 2013-08-30
    2. Cytoreductive surgery in pseudomyxoma peritonei-aspects of the learning curve
    Åpne denne publikasjonen i ny fane eller vindu >>Cytoreductive surgery in pseudomyxoma peritonei-aspects of the learning curve
    Vise andre…
    2013 (engelsk)Inngår i: European Journal of Surgical Oncology, ISSN 0748-7983, E-ISSN 1532-2157, Vol. 40, nr 8, s. 930-936Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    Background: Cytoreductive surgery (CRS) plus perioperative intraperitoneal chemotherapy is a highly invasive treatment of peritoneal metastasis and requires many surgical procedures before mastering. The aim of this study was to estimate how many procedures are needed before stabilization can be seen in surgical outcome (R1 surgery, adverse events and bleeding) in patients with pseudomyxoma peritonei (PMP). Patients and methods: All 128 patients with PMP who were treated with CRS alone or CRS plus perioperative intraperitoneal chemotherapy between 2003 and 2008 at the Uppsala University Hospital, Uppsala, Sweden, were included. The learning curve was calculated using the partial least square (PLS) and cumulative sum control chart (CUSUM) graph. Two groups were formed based on the results of the learning curve. The learning curve plateau was considered the same as the stabilization in the CUSUM graph. Group I consisted of patients included during the learning period (n = 73) and Group 11 of patients treated after the learning period ended (n = 55). Comparisons between the groups were made on surgical outcome, survival and adverse events. Results: Stabilization was seen after 220 +/- 10 procedures. A higher occurrence of R1 surgery was seen in Group H (80%) compared to Group I (48%; P = 0.0002). Overall survival increased at four years after surgery in Group H compared to Group I (80% vs. 63%; P = 0.02). Conclusion: CRS plus perioperative intraperitoneal chemotherapy is a highly demanding procedure that requires more than 200 procedures before optimisation in surgical outcome is seen.

    Emneord
    Cytoreductive surgery; Pseudomyxoma peritonei; Learning curve; Survival
    HSV kategori
    Identifikatorer
    urn:nbn:se:uu:diva-197433 (URN)10.1016/j.ejso.2014.03.001 (DOI)000339533700004 ()24656455 (PubMedID)
    Forskningsfinansiär
    Swedish Cancer Society, 10-0561 CAN 2010/569
    Tilgjengelig fra: 2013-04-08 Laget: 2013-03-25 Sist oppdatert: 2017-12-06bibliografisk kontrollert
    3. Outcome differences between debulking surgery and cytoreductive surgery in patients with pseudomyxoma peritonei
    Åpne denne publikasjonen i ny fane eller vindu >>Outcome differences between debulking surgery and cytoreductive surgery in patients with pseudomyxoma peritonei
    Vise andre…
    2012 (engelsk)Inngår i: European Journal of Surgical Oncology, ISSN 0748-7983, E-ISSN 1532-2157, Vol. 38, nr 10, s. 962-968Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    BACKGROUND:

    The aim of this study was to compare debulking surgery and cytoreductive surgery (CRS) in patients with Pseudomyxoma peritonei (PMP) regarding efficacy and safety.

    PATIENTS AND METHODS:

    Data were extracted from medical records and treatment outcomes were analyzed for all 152 patients with PMP who were scheduled for debulking surgery and intraperitoneal chemotherapy (IPC) or CRS and IPC at Uppsala University Hospital, Uppsala, Sweden, between September 1993 and December 2008.

    RESULTS:

    One hundred and ten patients (73%) were treated with CRS and IPC and 40 (27%) with debulking surgery and IPC. In two patients (1%), surgery was defined as open and close. Patients with CRS and IPC had a 74% 5-year overall survival (OS) rate compared with 40% for those treated with debulking surgery (P < 0.001). Patients with no residual macroscopic tumour (R1 resection) had a better 5-year OS rate of 94% compared with 28% for patients with macroscopic residual tumour (R2) (P < 0.001). Grades II-IV adverse events were seen in 29% of debulked patients and in 47% of CRS/IPC patients (P = 0.053).

    CONCLUSIONS:

    CRS and IPC seems more efficient than debulking surgery and IPC but with numerically higher morbidity. Therefore, if surgically possible, CRS should be the treatment of choice for PMP patients. However, debulking surgery may still be of benefit to selected patients for palliative purposes.

    HSV kategori
    Identifikatorer
    urn:nbn:se:uu:diva-181434 (URN)10.1016/j.ejso.2012.07.009 (DOI)000309787600012 ()22809859 (PubMedID)
    Tilgjengelig fra: 2012-09-24 Laget: 2012-09-24 Sist oppdatert: 2017-12-07bibliografisk kontrollert
    4. Histopathological Classification of Pseudomyxoma Peritonei and the Prognostic Importance of PINCH Protein
    Åpne denne publikasjonen i ny fane eller vindu >>Histopathological Classification of Pseudomyxoma Peritonei and the Prognostic Importance of PINCH Protein
    Vise andre…
    2012 (engelsk)Inngår i: Anticancer Research, ISSN 0250-7005, E-ISSN 1791-7530, Vol. 32, nr 4, s. 1443-1448Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    Aim:

    The aims of this study were i) to assess a new and more detailed histopathological classification and to analyze concordance between pathologists in the histopathological classification of pseudomyxoma peritonei (PMP); ii) to analyze the expression in the stroma of the particularly interesting new cysteine-histidine (PINCH) protein and its prognostic importance in PMP.

    Materials and Methods:

    Surgical specimens from 81 patients, classified according to the Ronnett et al histopathological classification were compared to a new system with four groups ranging from indolent to aggressive growth patterns. PINCH protein expression was analyzed and was related to clinical variables.

    Results:

    The new four-group classification provided better prognostic information than the classification according to Ronnett et al. (p=0.04). Expression of the PINCH protein in the stroma was found in 83% of the cases and was associated with high tumor burden (p=0.002) and a poor prognosis (p=0.04).

    Conclusion:

    The proposed new PMP classification system may provide additional prognostic information. PINCH protein is expressed in PMP and has prognostic information.

    Emneord
    Pseudomyxoma peritonei, histopathology, PINCH, protein expression, cytokeratin 7, Ki-67
    HSV kategori
    Forskningsprogram
    Patologi
    Identifikatorer
    urn:nbn:se:uu:diva-173640 (URN)000302492600043 ()22493383 (PubMedID)
    Tilgjengelig fra: 2012-05-09 Laget: 2012-05-02 Sist oppdatert: 2018-01-12bibliografisk kontrollert
  • 34.
    Andréasson, Håkan
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kolorektalkirurgi.
    Lorant, Tomas
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Transplantationskirurgi.
    Påhlman, Lars
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kolorektalkirurgi.
    Graf, Wilhelm
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kolorektalkirurgi.
    Mahteme, Haile
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kolorektalkirurgi.
    Cytoreductive surgery in pseudomyxoma peritonei-aspects of the learning curve2013Inngår i: European Journal of Surgical Oncology, ISSN 0748-7983, E-ISSN 1532-2157, Vol. 40, nr 8, s. 930-936Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background: Cytoreductive surgery (CRS) plus perioperative intraperitoneal chemotherapy is a highly invasive treatment of peritoneal metastasis and requires many surgical procedures before mastering. The aim of this study was to estimate how many procedures are needed before stabilization can be seen in surgical outcome (R1 surgery, adverse events and bleeding) in patients with pseudomyxoma peritonei (PMP). Patients and methods: All 128 patients with PMP who were treated with CRS alone or CRS plus perioperative intraperitoneal chemotherapy between 2003 and 2008 at the Uppsala University Hospital, Uppsala, Sweden, were included. The learning curve was calculated using the partial least square (PLS) and cumulative sum control chart (CUSUM) graph. Two groups were formed based on the results of the learning curve. The learning curve plateau was considered the same as the stabilization in the CUSUM graph. Group I consisted of patients included during the learning period (n = 73) and Group 11 of patients treated after the learning period ended (n = 55). Comparisons between the groups were made on surgical outcome, survival and adverse events. Results: Stabilization was seen after 220 +/- 10 procedures. A higher occurrence of R1 surgery was seen in Group H (80%) compared to Group I (48%; P = 0.0002). Overall survival increased at four years after surgery in Group H compared to Group I (80% vs. 63%; P = 0.02). Conclusion: CRS plus perioperative intraperitoneal chemotherapy is a highly demanding procedure that requires more than 200 procedures before optimisation in surgical outcome is seen.

  • 35.
    Andréasson, Håkan
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kolorektalkirurgi.
    Påhlman, Lars
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kolorektalkirurgi.
    Mahteme, Haile
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kolorektalkirurgi.
    The natural history of pseudomyxoma peritonei- the early phaseManuskript (preprint) (Annet vitenskapelig)
  • 36. Angeles Martinez-Maestre, Maria
    et al.
    Gambadauro, Pietro
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kvinnors och barns hälsa, Obstetrik & gynekologi.
    Gonzalez-Cejudo, Carmen
    Torrejon, Rafael
    Total Laparoscopic Hysterectomy With and Without Robotic Assistance: A Prospective Controlled Study2014Inngår i: Surgical Innovation, ISSN 1553-3506, E-ISSN 1553-3514, Vol. 21, nr 3, s. 250-255Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background. Hysterectomies are very common, and most of them are still performed abdominally. The minimally invasive alternatives are perceived as difficult by gynecologists. Robotic assistance is thought to facilitate laparoscopic surgery. The aim of this study was to compare the surgical outcomes of robotic-assisted and conventional total laparoscopic hysterectomy. Methods. Patients, candidate to hysterectomy for benign indications, were allocated to either robotic or conventional laparoscopy in a quasi-randomized fashion. Patients were operated following a standardized surgical protocol. Main outcome measures were total surgical time, conversions to laparotomy, blood loss, hospital stay, and complications. Results. Fifty-one patients underwent robotic hysterectomy (mean age = 46.59 years) and 54 conventional laparoscopy (mean age = 50.02 years). The groups were homogeneous in body mass index and uterine weight. Robotic-assisted hysterectomies were significantly shorter (154.63 +/- 36.57 vs 185.65 +/- 42.98 minutes in the control group; P =.0001). Patients in the robotic group also had a significantly smaller reduction in hemoglobin (9.69% +/- 8.88% vs 15.29% +/- 8.39% in controls; P =.0012) and hematocrit (10.56% +/- 8.3% vs 14.89% +/- 8.11%; P =.008). No intraoperative conversions to laparotomy were required. Complication rate was low and similar in both groups. All patients were fully recovered at 1-month follow-up outpatient visit. Conclusions. Significantly lower operative times and blood loss indicate that robotic assistance can facilitate surgery already during the learning curve period. Nevertheless, proficiency can be reached in conventional laparoscopy through training, and the cost-effectiveness of robotic hysterectomy for benign conditions is yet to be confirmed.

  • 37.
    Angsten, Gertrud
    Uppsala universitet, Medicinska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Fat metabolism: A clinical and experimental study with special reference to newborns2002Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Lipid emulsion is an important constituent of total parenteral nutrition (TPN). In the investigations described in this thesis the effects of different lipid emulsions in neonates were studied.

    Twenty neonates in each of two studies, undergoing surgery for oesophago-gastrointestinal malformations, were assigned the day after the operation to receive TPN for 5 days, containing one of the two emulsions. In the first study 10 neonates received PFE 4501 containing gamma-linolenic acid (GLA) and carnitine and 10 were given Intralipid®and served as controls. In the second study 10 received Vasolipid® and 10, the control group, Intralipid®. In both studies linoleic acid and α-linolenic acid increased in plasma lipid esters and adipose tissue in each group. Arachidonic acid decreased in the PFE 4501 group in spite of GLA supplementation. Plasma carnitine increased two-fold in the PFE 4501 group, but decreased in the groups receiving Vasolipid® or Intralipid®. Reference ranges for muscle carnitine concentrations in children 1 days to 14 years of age were determined for comparisons. The results showed that the carnitine concentration in skeletal muscle tissue was greatly dependent on the gestational age in newborns. Accumulation of carnitine in skeletal muscle tissue continued during the first year of life, after which the concentration remained essentially constant.

    There are several methods for determining carnitine concentrations in plasma and muscle, but in the PET camera measurements are made in vivo. The transfer of long-chain fatty acids into the mitochondria, which relies on the carnitine-dependent transport system, was studied with PET, with labelling of the radioactive isotope carbon-11. Inhibition of carnitine palmitoyltransferase I by oxfenicine almost completely blocked the oxidative pathway of palmitic acid, while short carbon-chain fatty acids, which are independent of carnitine for their transport, were virtually unaffected. The fractional oxidative utilisation of long-chain fatty acids may thus be used as an index of the activity of the carnitine-dependent transport system.

  • 38.
    Angsten, Gertrud
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kvinnors och barns hälsa, Barnkirurgi.
    Danielson, Johan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kvinnors och barns hälsa, Barnkirurgi.
    Kassa, Ann-Marie
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kvinnors och barns hälsa, Barnkirurgi.
    Lilja, Helene Engstrand
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kvinnors och barns hälsa, Barnkirurgi.
    Outcome of laparoscopic versus open gastrostomy in children2015Inngår i: Pediatric surgery international (Print), ISSN 0179-0358, E-ISSN 1437-9813, Vol. 31, nr 11, s. 1067-1072Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Laparoscopic gastrostomy (LAPG) has gained popularity in children. The aim of this study was to compare the outcome of LAPG versus open gastrostomy (OG) in children with focus on complications, operative times and postoperative length of stay. Retrospective study of children who had gastrostomies inserted at our tertiary Pediatric Surgery Center from 2000 until 2013. The indications for a gastrostomy were an anticipated need for enteral support for at least 6 months. Totally 243 children were included in the study, 83 with LAPG and 160 with OG. We found a significant difference in postoperative length of stay, 3 days in the LAPG group versus 4 days in the OG group but no difference in a sub-group analysis from 2010 to 2013 when both techniques were used. There was no difference in median operative time or complications rates. Granuloma was the dominating complication in both groups. These two feeding-access techniques are comparable regarding complications, operative times and postoperative length of stay. The choice of surgical method should be individualized based on the patient's characteristics and the experience of the surgeon. The favorable results with LAPG in adults are not necessarily transferable to children since there are physiological and anatomical differences.

  • 39.
    Annerbo, Maria
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Hultin, Hella
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Stålberg, Peter
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Hellman, Per
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Left-shifted relation between calcium and parathyroid hormone in Graves' Disease2014Inngår i: Journal of Clinical Endocrinology and Metabolism, ISSN 0021-972X, E-ISSN 1945-7197, Vol. 99, nr 2, s. 545-551Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background:

    Patients with Graves' disease (GD) have disturbances in calcium regulation with manifestations such as postoperative hypocalcemia. We have investigated the thyroid as well as the parathyroid function in detail.

    Material and Method:

    A series of patients undergoing total thyroidectomy for GD (n=56) or Multi Nodular Goitre (MNG, n=50) were scrutinized for postoperative hypocalcemia, need for calcium and/or vitamin D substitution. CiCa-clamp was used in 14 patients and 21 controls to quantify the secretion of PTH in relation to the ionized plasma calcium level. The setpoint, equal to the plasma ionized calcium concentration at which 50% of the maximal secretion of PTH is inhibited, as well as other CiCa-related parameters were calculated.

    Results:

    Hypocalcemia was present in 48% of GD and 41.2% of patients with MNG postoperatively. Patients with GD had lower calcium levels, 18% had S-Ca< 2.00 mmol/L compared to 4.0% in the MNG group, p=0.02. A higher degree of GD patients were given parenteral calcium-substitution during the hospital stay (3.6% vs 0 %) and oral calcium substitution at discharge (48% vs 10%), although they had normal vitamin D3 levels. The GD group showed a significantly left-shifted setpoint compared to the normal group on CiCa clamp, 1.16 mmol/l vs. 1.20 mmol/L (p<0.001), as well as an increased PTH release to hypocalcemic stimulus. GD patients also show an association between degree of subclinical toxicosis at time of surgery and risk for developing postoperative hypocalcemia.

    Conclusion:

    Patients with GD demonstrate dysregulation of the calcium homeostasis by several parameters. GD patients have lower postoperative S-calcium compared to patients with MNG, lower calcium/PTH setpoint and a significantly increased release of PTH to hypocalcemic stimulus compared to controls. The CiCa clamp response in GD patients with normal 25-OH-vitamin D3 levels mimics that of obese patients in which vitamin D insufficiency has been proposed as an underlying cause.

  • 40.
    Annerbo, Maria
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Stålberg, Peter
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Hellman, Per
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Management of Grave's Disease Is Improved by Total Thyroidectomy2012Inngår i: World Journal of Surgery, ISSN 0364-2313, E-ISSN 1432-2323, Vol. 36, nr 8, s. 1943-1946Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A retrospective analysis was performed on 267 consecutive patients with Graves' disease (GD). The principal aim of this study was to evaluate the risk for recurrence and complications when changing the surgical method from subtotal (ST) to total thyroidectomy (TT). Information from 267 consecutive patients operated on for GD between 2000 and 2006 was collected at Uppsala University Hospital (143) and Falun County Hospital (128). There were 229 women and 38 men. Four patients were operated on twice. A total of 40 STs and 229 TTs were performed. Results were compared to those of a previous cohort from the same hospital, with a majority of STs (157/176) performed from 1980 to 1992. The risk for relapse of GD was reduced from 20 to 3.3 % after the shift from ST to TT. In terms of surgical complications, 2.2 % demonstrated permanent vocal cord paralysis and 4.5 % had persistent hypocalcemia, not significant when compared to the previous cohort. In spite of TT, there were four recurrences, all due to remnant thyroid tissue high up at the hyoid bone. Changing the surgical method did not affect postoperative progression of dysthyroid ophthalmopathy (DO, 7.0 vs. 7.5 %). There were no differences in outcome with respect to which hospital the patients had their operation. Change from ST to TT dramatically reduced the risk for recurrence of GD without increasing the rate of complications. TT is not more effective than ST in hampering progression of DO as has been advocated by some. Careful surgical dissection up to the hyoid bone is necessary to avoid recurrence.

  • 41. Antonsson, J B
    et al.
    Engström, L
    Rasmussen, I
    Wollert, S
    Haglund, U H
    Changes in gut intramucosal pH and gut oxygen extraction ratio in a porcine model of peritonitis and hemorrhage.1995Inngår i: Critical Care Medicine, ISSN 0090-3493, E-ISSN 1530-0293, Vol. 23, nr 11, s. 1872-81Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    OBJECTIVE: To establish the relationship between gut intramucosal pH and blood flow to the gut, gut oxygen delivery, and gut oxygen extraction ratio in a porcine model of peritonitis and hemorrhage.

    DESIGN: Prospective, controlled study.

    SETTING: Experimental laboratory in a university teaching hospital.

    SUBJECTS: Thirty pigs of both sexes, weighing 15 to 22 kg.

    INTERVENTIONS: Animals were anesthetized, intubated, and mechanically ventilated. A flow probe was placed around the superior mesenteric artery for registration of blood flow. A tonometer was placed in the lumen of midileum for calculation of gut intramucosal pH. Hourly, for 5 hrs, blood samples were taken from mixed venous, mesenteric venous, and arterial blood. Five animals served as controls, ten animals had peritonitis induced by fecal instillation in the abdominal cavity, five were bled stepwise, five were bled rapidly (to a mean arterial pressure of 30 mm Hg), and five were bled rapidly and reinfused after 3 hrs.

    MEASUREMENTS AND MAIN RESULTS: Both peritonitis and hemorrhage caused decreases in gut blood flow and intramucosal pH. In mild peritonitis, the intramucosal pH decrease preceded that of blood flow. In all experimental groups, oxygen delivery decreased over time; in both mild and severe peritonitis, this decrease was preceded by a decrease of intramucosal pH. Intramucosal pH correlated well with gut oxygen extraction ratio in peritonitis (r2 = .86). In hemorrhage, there was a correlation of r2 = .66, but in intramucosal pH of < 7.12, a further decrease was accompanied only by minor changes in extraction ratio.

    CONCLUSIONS: Since a reduction in blood flow was preceded by a decrease in intramucosal pH, low intramucosal pH in peritonitis cannot be explained by low flow alone. Gut oxygen delivery proved to be a poor indicator of gut acidosis (i.e., low intramucosal pH). In peritonitis, a decreasing intramucosal pH was associated with an increasing oxygen extraction ratio. In hemorrhage, this association had a sharp deflection point below which a further decrease in intramucosal pH occurred concomitantly with an unchanged gut oxygen extraction ratio. Increased extraction ratio was not sufficient, not even initially, to maintain aerobic metabolism (i.e., unchanged intramucosal pH).

  • 42.
    Arakelian, Erebouni
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Operating Room Efficiency and Postoperative Recovery after Major Abdominal Surgery: The Surgical Team’s Efficiency and the Early Postoperative Recovery of Patients with Peritoneal Carcinomatosis2011Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    In selected patients, surgical treatments such as cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) have enabled curative treatment options for previously incurable diseases, such as peritoneal carcinomatosis (PC). The introduction of resource demanding surgery could affect the work process, efficiency, and productivity within a surgical department and factors influencing patient postoperative recovery processes may have an impact on the efficiency of patient care after major surgery.

    The aim of this thesis was to investigate operating room efficiency from the perspective of both staff and leaders’ in two different settings (Papers I and II) and the early postoperative recovery of patients with peritoneal carcinomatosis (Papers III and IV).

    Interviews were held with 21 people in a county hospital and 11 members of the PC team in a university hospital, and a phenomenographic approach was used to analysis the data (Papers I and II). The patients’ postoperative recovery and pulmonary adverse events (AE) were determined from data retrieved from the electronic health records of 76 patients (Papers III and IV).

    The concept of efficiency was understood in different ways by staff members and their leaders (Paper I). However, when working in a team, the team members had both organisation-oriented and individual-oriented understanding of efficiency at work that focused on the patients and the quality of care (Paper II).

    The patients with PC regained gastrointestinal functions and could be mobilised during early postoperative recovery phase, although many patients suffered from psychological disturbances, sleep deprivation, and nausea (Paper III). Postoperative clinical and radiological pulmonary AE were common, but did not affect the early recovery process (Paper IV).

    In conclusion, leaders who are aware of the variation in understanding the concept of efficiency are better able to create the same platform for staff members by defining the concept of efficiency within the organisation. In a team organisation, the team members have a wider understanding of the concept of efficiency with more focus on the patients. The factors affecting postoperative recovery and pulmonary AE should be considered when designing individualised patient care plans in order to attain a more efficient recovery.

    Delarbeid
    1. Job satisfaction or production? How staff and leadership understand operating room efficiency: a qualitative study
    Åpne denne publikasjonen i ny fane eller vindu >>Job satisfaction or production? How staff and leadership understand operating room efficiency: a qualitative study
    2008 (engelsk)Inngår i: Acta Anaesthesiologica Scandinavica, ISSN 0001-5172, E-ISSN 1399-6576, Vol. 52, nr 10, s. 1423-1428Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    BACKGROUND: How to increase efficiency in operating departments has been widely studied. However, there is no overall definition of efficiency. Supervisors urging staff to work efficiently may meet strong reactions due to staff believing that demands for efficiency means just stress at work. Differences in how efficiency is understood may constitute an obstacle to supervisors' efforts to promote it. This study aimed to explore how staff and leadership understand operating room efficiency. METHODS: Twenty-one members of staff and supervisors in an operating department in a Swedish county hospital were interviewed. The analysis was performed with a phenomenographic approach that aims to discover the variations in how a phenomenon is understood by a group of people. RESULTS: Six categories were found in the understanding of operation room efficiency: (A) having the right qualifications; (B) enjoying work; (C) planning and having good control and overview; (D) each professional performing the correct tasks; (E) completing a work assignment; and (F) producing as much as possible per time unit. The most significant finding was that most of the nurses and assistant nurses understood efficiency as individual knowledge and experience emphasizing the importance of the work process, whereas the supervisors and physicians understood efficiency in terms of production per time unit or completing an assignment. CONCLUSIONS: The concept 'operating room efficiency' is understood in different ways by leadership and staff members. Supervisors who are aware of this variation will have better prerequisites for defining the concept and for creating a common platform towards becoming efficient.

    HSV kategori
    Identifikatorer
    urn:nbn:se:uu:diva-87825 (URN)10.1111/j.1399-6576.2008.01781.x (DOI)000260131000019 ()19025537 (PubMedID)
    Tilgjengelig fra: 2009-01-14 Laget: 2009-01-14 Sist oppdatert: 2017-12-14bibliografisk kontrollert
    2. How operating room efficiency is understood in a surgical team: a qualitative study
    Åpne denne publikasjonen i ny fane eller vindu >>How operating room efficiency is understood in a surgical team: a qualitative study
    2011 (engelsk)Inngår i: International Journal for Quality in Health Care, ISSN 1353-4505, E-ISSN 1464-3677, Vol. 23, nr 1, s. 100-106Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    Objective. Building surgical teams is one attempt to ensure the health-care system becomes more efficient, but how is 'efficiency'understood or interpreted? The aim was to study how organized surgical team members and their leaders understood operating room efficiency.

    Design. Qualitative study.

    Settings. A 1100-bed Swedish university hospital.

    Participants. Eleven participants, nine team members from the same team and their two leaders were interviewed.

    Methods. The analysis was performed according to phenomenography, a research approach that aims to discover variationsin peoples' understanding of a henomenon.

    Results. Seven ways of understanding operating room efficiency were identified: doing one's best from one's prerequisites,enjoying work and adjusting it to the situation, interacting group performing parallel tasks, working with minimal resources to produce desired results, fast work with preserved quality, long-term effects for patient care and a relative concept. When talking about the quality and benefits of delivered care, most team members invoked the patient as the central focus. Despite seven ways of understanding efficiency between the team members, they described their team as efficient. The nurses and assistant nurses were involved in the production and discussed working in a timely manner more than the leaders.

    Conclusions. The seven ways of understanding operating room efficiency appear to represent both organization-oriented andindividual-oriented understanding of that concept in surgical teams. The patient is in focus and efficiency is understood as maintaining quality of care and measuring benefits of care for the patients.

    Emneord
    Leadership, quality management, qualitative methods, general methodology, teamwork, human resources
    HSV kategori
    Identifikatorer
    urn:nbn:se:uu:diva-138784 (URN)10.1093/intqhc/mzq063 (DOI)000286474000012 ()21098628 (PubMedID)
    Tilgjengelig fra: 2010-12-20 Laget: 2010-12-20 Sist oppdatert: 2017-12-11bibliografisk kontrollert
    3. Factors influencing early postoperative recovery after cytoreductive surgery and hyperthermic intraperitoneal chemotherapy
    Åpne denne publikasjonen i ny fane eller vindu >>Factors influencing early postoperative recovery after cytoreductive surgery and hyperthermic intraperitoneal chemotherapy
    Vise andre…
    2011 (engelsk)Inngår i: European Journal of Surgical Oncology, ISSN 0748-7983, E-ISSN 1532-2157, Vol. 37, nr 10, s. 897-903Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    BACKGROUND:

    Cytoreductive surgery (CRS) combined with hyperthermic intraperitoneal chemotherapy (HIPEC) can prolong survival in selected patients with peritoneal carcinomatosis (PC). However, there is little data on patients' recovery process after this complex treatment. This study aimed to describe the in-hospital postoperative recovery and factors related to the recovery of patients who undergo CRS and HIPEC.

    METHOD:

    A retrospective audit of the electronic health record (EHR) was undertaken for 76 PC patients (42 women, 34 men) treated primarily with CRS and HIPEC between 2005 and 2006 in Sweden.

    RESULTS:

    Oral intake, regaining bowel functions and mobilisation usually occurred between 7 and 11 days postoperatively. Patients experienced nausea for up to 13 days postoperatively. Forty-two patients were satisfied with their pain management, which usually took the form of epidural anaesthesia and which continued for about one week post-surgery. Sleep disturbance was observed in 51 patients and psychological problems in 49 patients during the first three postoperative weeks. Tumour burden, stoma formation, use of CPAP, primary diagnosis, and the length of stay in the ICU were factors related to an early recovery process.

    CONCLUSION:

    Drinking, eating, regaining bowel functions and mobilisation were re-established within 11 days of CRS and HIPEC. Tumour burden, stoma formation, use of CPAP, primary diagnosis and the length of stay in the ICU all had an impact on postoperative recovery, and should be discussed with the patients preoperatively and taken into consideration in designing an individualised patient care plan, in order to attain a more efficient recovery.

    HSV kategori
    Identifikatorer
    urn:nbn:se:uu:diva-159496 (URN)10.1016/j.ejso.2011.06.003 (DOI)000295894900010 ()21783337 (PubMedID)
    Tilgjengelig fra: 2011-10-03 Laget: 2011-10-03 Sist oppdatert: 2017-12-08bibliografisk kontrollert
    4. Pulmonary influences on early postoperative recovery in patients after cytoreductive surgery and hyperthermic intraperitoneal chemotherapy treatment
    Åpne denne publikasjonen i ny fane eller vindu >>Pulmonary influences on early postoperative recovery in patients after cytoreductive surgery and hyperthermic intraperitoneal chemotherapy treatment
    Vise andre…
    2011 (engelsk)Inngår i: Anesthesia and Analgesia, ISSN 0003-2999, E-ISSN 1526-7598Artikkel i tidsskrift (Annet vitenskapelig) Submitted
    HSV kategori
    Identifikatorer
    urn:nbn:se:uu:diva-159497 (URN)
    Tilgjengelig fra: 2011-10-03 Laget: 2011-10-03 Sist oppdatert: 2017-12-08bibliografisk kontrollert
  • 43.
    Arakelian, Erebouni
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kolorektalkirurgi.
    Gunningberg, Lena
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för folkhälso- och vårdvetenskap, Vårdvetenskap. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Larsson, Jan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för folkhälso- och vårdvetenskap, Hälso- och sjukvårdsforskning.
    Norlén, Karin
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Anestesiologi och intensivvård.
    Mahteme, Haile
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kolorektalkirurgi.
    Factors influencing early postoperative recovery after cytoreductive surgery and hyperthermic intraperitoneal chemotherapy2011Inngår i: European Journal of Surgical Oncology, ISSN 0748-7983, E-ISSN 1532-2157, Vol. 37, nr 10, s. 897-903Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND:

    Cytoreductive surgery (CRS) combined with hyperthermic intraperitoneal chemotherapy (HIPEC) can prolong survival in selected patients with peritoneal carcinomatosis (PC). However, there is little data on patients' recovery process after this complex treatment. This study aimed to describe the in-hospital postoperative recovery and factors related to the recovery of patients who undergo CRS and HIPEC.

    METHOD:

    A retrospective audit of the electronic health record (EHR) was undertaken for 76 PC patients (42 women, 34 men) treated primarily with CRS and HIPEC between 2005 and 2006 in Sweden.

    RESULTS:

    Oral intake, regaining bowel functions and mobilisation usually occurred between 7 and 11 days postoperatively. Patients experienced nausea for up to 13 days postoperatively. Forty-two patients were satisfied with their pain management, which usually took the form of epidural anaesthesia and which continued for about one week post-surgery. Sleep disturbance was observed in 51 patients and psychological problems in 49 patients during the first three postoperative weeks. Tumour burden, stoma formation, use of CPAP, primary diagnosis, and the length of stay in the ICU were factors related to an early recovery process.

    CONCLUSION:

    Drinking, eating, regaining bowel functions and mobilisation were re-established within 11 days of CRS and HIPEC. Tumour burden, stoma formation, use of CPAP, primary diagnosis and the length of stay in the ICU all had an impact on postoperative recovery, and should be discussed with the patients preoperatively and taken into consideration in designing an individualised patient care plan, in order to attain a more efficient recovery.

  • 44.
    Arakelian, Erebouni
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kolorektalkirurgi.
    Torkzad, Michael R.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för radiologi, onkologi och strålningsvetenskap, Enheten för radiologi.
    Bergman, Antonina
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för radiologi, onkologi och strålningsvetenskap, Enheten för radiologi.
    Rubertsson, Sten
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Anestesiologi och intensivvård.
    Mahteme, Haile
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kolorektalkirurgi.
    Pulmonary influences on early postoperative recovery in patients after cytoreductive surgery and hyperthermic intraperitoneal chemotherapy treatment2011Inngår i: Anesthesia and Analgesia, ISSN 0003-2999, E-ISSN 1526-7598Artikkel i tidsskrift (Annet vitenskapelig)
  • 45.
    Ardern, Clare L.
    et al.
    Linkoping Univ, Div Physiotherapy, Linkoping, Sweden.;Aspetar Orthopaed & Sports Med Hosp, Doha, Qatar.;La Trobe Univ, Sch Allied Hlth, Melbourne, Vic, Australia..
    Österberg, Annika
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centrum för klinisk forskning i Sörmland (CKFD). Linkoping Univ, Div Physiotherapy, Linkoping, Sweden..
    Sonesson, Sofi
    Linkoping Univ, Div Physiotherapy, Linkoping, Sweden..
    Gauffin, Håkan
    Linkoping Univ, Dept Orthopaed, Linkoping, Sweden..
    Webster, Kate E.
    La Trobe Univ, Sch Allied Hlth, Melbourne, Vic, Australia..
    Kvist, Joanna
    Linkoping Univ, Div Physiotherapy, Linkoping, Sweden..
    Satisfaction With Knee Function After Primary Anterior Cruciate Ligament Reconstruction Is Associated With Self-Efficacy, Quality of Life, and Returning to the Preinjury Physical Activity2016Inngår i: Arthroscopy: The Journal of Arthroscopy And Related, ISSN 0749-8063, E-ISSN 1526-3231, Vol. 32, nr 8, s. 1631-+Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Purpose: To assess whether patient-reported outcomes (psychological factors, appraisals of knee function, and physical activity participation) were associated with satisfaction with knee function after anterior cruciate ligament (ACL) reconstruction. Methods: Participants who were aged 18 to 45 years and a minimum 12 months post primary ACL reconstruction completed a questionnaire battery evaluating knee self-efficacy, knee-related quality of life, self-reported function, and physical activity participation. Participants' responses to the question "If you were to spend the rest of your life with your knee just the way it has been in the last week, would you feel.... (7-point ordinal scale; 1 = happy, 7 = unhappy)" were categorized as satisfied, mostly satisfied, or dissatisfied and used as the primary outcome. Ordinal regression was used to examine associations between independent variables and the primary outcome. Results: A total of 177 participants were included at an average of 3 years after primary ACL reconstruction. At follow-up, 44% reported they would be satisfied, 28% mostly satisfied, and 28% dissatisfied with the outcome of ACL reconstruction. There were significant differences in psychological responses and appraisal of knee function between the 3 groups (P = .001), and significantly more people in the satisfied group had returned to their preinjury activity (58%) than in the mostly satisfied (28%) and dissatisfied (26%) groups (P = .001). Multivariable analysis demonstrated that the odds of being satisfied increased by a factor of 3 with higher self-efficacy, greater knee-related quality of life, and returning to the preinjury activity. Conclusions: People who had returned to their preinjury physical activity and who reported higher knee-related self-efficacy and quality of life were more likely to be satisfied with the outcome of ACL reconstruction.

  • 46.
    Aresdahl, Alexander
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Käkkirurgi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Plastikkirurgi.
    Lindell, Björn
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Käkkirurgi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Plastikkirurgi.
    Dukic, Milena
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Klinisk och experimentell patologi.
    Thor, Andreas
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Käkkirurgi.
    Congenital granular cell epulis: a case report2015Inngår i: Oral and Maxillofacial Surgery Cases, ISSN 2214-5419, Vol. 1, nr 1, s. 8-11Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Congenital granular cell epulis (CGCE) is an uncommon benign lesion found in newborns. It has predominance for females with an 8:1 ratio in relation to males and is exclusively encountered in the oral cavity. The most affected oral site is located around the canine/incisor region of the maxillary alveolar ridge, where the lesion arises from the soft tissue as a solitary pedunculated mass. CGCE's histogenesis remains obscure and controversial. We present a rare case of 2 separate CGCE lesions adjacent to each other measuring 23 × 18 × 10 and 15 × 10 mm, positioned facially on the right maxillary alveolar process. The patient, a 2-day-old female newborn, did not experience any serious difficulty regarding breathing or deglutition. Complete surgical excision was the treatment of choice in this case, and the procedure was performed under both general and local anesthesia. Histologic and immunohistochemical analysis confirmed the diagnosis of CGCE. The patient showed satisfactory postoperative healing and excellent health at both the 10-day recall appointment and the 6-month follow-up.

  • 47. Arvidsson, D
    et al.
    Rasmussen, I
    [Laparoscopic surgery. A shift in paradigm?].1993Inngår i: Nordisk Medicin, ISSN 0029-1420, Vol. 108, nr 10, s. 247-50Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [sv]

    Since it was first introduced at the beginning of the century, laparoscopy has been developed by pioneers in the field of gynaecological surgery from a diagnostic aid to a high tech tool for use in various branches of surgery. In the near future, this rapidly developing technique, with three-dimensional video and robot-assisted surgery, will require well planned theoretical and practical training.

  • 48. Arvidsson, D
    et al.
    Rasmussen, I
    Almqvist, P
    Niklasson, F
    Haglund, U
    Splanchnic oxygen consumption in septic and hemorrhagic shock.1991Inngår i: Surgery, ISSN 0039-6060, E-ISSN 1532-7361, Vol. 109, nr 2, s. 190-7Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Oxygen consumption (VO2) is dependent on oxygen delivery (DO2) in septic shock. Local hypoxia with later secondary organ failure may develop, however, despite an often hyperdynamic circulation. The splanchnic organs seem to be of vital importance in this context. In experiments performed in pigs we compared total body VO2 and DO2 with oxygen consumption and delivery in the gastrointestinal organs and the liver in two different shock states: (1) septic shock induced by peritonitis (n = 6) and (2) hemorrhagic shock (n = 6). Another group of six animals not in shock served as controls. Total, gastrointestinal, and liver DO2 decreased in a similar pattern in both septic and hemorrhagic shock. Gastrointestinal and liver VO2 increased in sepsis, whereas it was unchanged in hemorrhage. In the later phase of sepsis, liver VO2, but not gastrointestinal VO2, again decreased, because liver oxygen extraction was almost total and liver DO2 decreased further. The development of flow-dependent liver hypoxia was reflected in a decrease in liver lactate turnover (increased liver lactate release) during late sepsis. Early hypoxia in the splanchnic region is suggested as a plausible mechanism behind the development of secondary organ failure, especially in sepsis.

  • 49.
    Asif, Sana
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Klinisk immunologi.
    Sedigh, Amir
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Transplantationskirurgi.
    Nordström, Johan
    Department of Transplantation Surgery, Karolinska University Hospital, Stockholm, Sweden.
    Brandhorst, Heide
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi.
    Jorns, Carl
    Department of Transplantation Surgery, Karolinska University Hospital, Stockholm, Sweden.
    Lorant, Tomas
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Transplantationskirurgi.
    Larsson, Erik
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Molekylär och morfologisk patologi.
    Magnusson, Peetra U.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Klinisk immunologi.
    Nowak, Greg
    Department of Transplantation Surgery, Karolinska University Hospital, Stockholm, Sweden.
    Theisinger, Sonja
    Novaliq GmbH, Heidelberg, Germany.
    Hoeger, Simone
    Department of Nephrology, Endocrinology and Rheumatology, University Medical Center Mannheim, Mannheim, Germany.
    Wennberg, Lars
    Korsgren, Olle
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Klinisk immunologi.
    Brandhorst, Daniel
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi.
    Oxygen-charged HTK-F6H8 emulsion reduces ischemia: reperfusion injury in kidneys from brain-dead pigs2012Inngår i: Journal of Surgical Research, ISSN 0022-4804, E-ISSN 1095-8673, Vol. 178, nr 2, s. 959-967Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background:

    Prolonged cold ischemia is frequently associated with a greater risk of delayed graft function and enhanced graft failure. We hypothesized that media, combining a high oxygen-dissolving capacity with specific qualities of organ preservation solutions, would be more efficient in reducing immediate ischemia-reperfusion injury from organs stored long term compared with standard preservation media.

    Methods:

    Kidneys retrieved from brain-dead pigs were flushed using either cold histidine-tryptophan-ketoglutarate (HTK) or oxygen-precharged emulsion composed of 75% HTK and 25% perfluorohexyloctane. After 18 h of cold ischemia the kidneys were transplanted into allogeneic recipients and assessed for adenosine triphosphate content, morphology, and expression of genes related to hypoxia, environmental stress, inflammation, and apoptosis.

    Results:

    Compared with HTK-flushed kidneys, organs preserved using oxygen-precharged HTK-perfluorohexyloctane emulsion had increased elevated adenosine triphosphate content and a significantly lower gene expression of hypoxia inducible factor-1 alpha, vascular endothelial growth factor, interleukin-1 alpha, tumor necrosis factor-alpha, interferon-alpha, JNK-1, p38, cytochrome-c, Bax, caspase-8, and caspase-3 at all time points assessed. In contrast, the mRNA expression of Bcl-2 was significantly increased.

    Conclusions:

    The present study has demonstrated that in brain-dead pigs the perfusion of kidneys with oxygen-precharged HTK-perfluorohexyloctane emulsion results in significantly reduced inflammation, hypoxic injury, and apoptosis and cellular integrity and energy content are well maintained. Histologic examination revealed less tubular, vascular, and glomerular changes in the emulsion-perfused tissue compared with the HTK-perfused counterparts. The concept of perfusing organs with oxygen-precharged emulsion based on organ preservation media represents an efficient alternative for improved organ preservation.

  • 50.
    Assadian, Farzaneh
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk biokemi och mikrobiologi.
    Sandström, Karl
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Öron-, näs- och halssjukdomar.
    Bondeson, Kåre
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Infektionsmedicin.
    Laurell, Göran
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Öron-, näs- och halssjukdomar.
    Lidian, Adnan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Öron-, näs- och halssjukdomar.
    Svensson, Catharina
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk biokemi och mikrobiologi.
    Akusjärvi, Göran
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk biokemi och mikrobiologi.
    Bergqvist, Anders
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper.
    Punga, Tanel
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk biokemi och mikrobiologi.
    Distribution and Molecular Characterization of Human Adenovirus and Epstein-Barr Virus Infections in Tonsillar Lymphocytes Isolated from Patients Diagnosed with Tonsillar Diseases2016Inngår i: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 11, nr 5, artikkel-id e0154814Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Surgically removed palatine tonsils provide a conveniently accessible source of T and B lymphocytes to study the interplay between foreign pathogens and the host immune system. In this study we have characterised the distribution of human adenovirus (HAdV), Epstein-Barr virus (EBV) and human cytomegalovirus (HCMV) in purified tonsillar T and B cell-enriched fractions isolated from three patient age groups diagnosed with tonsillar hypertrophy and chronic/recurrent tonsillitis. HAdV DNA was detected in 93 out of 111 patients (84%), while EBV DNA was detected in 58 patients (52%). The most abundant adenovirus type was HAdV-5 (68%). None of the patients were positive for HCMV. Furthermore, 43 patients (39%) showed a co-infection of HAdV and EBV. The majority of young patients diagnosed with tonsillar hypertrophy were positive for HAdV, whereas all adult patients diagnosed with chronic/recurrent tonsillitis were positive for either HAdV or EBV. Most of the tonsils from patients diagnosed with either tonsillar hypertrophy or chronic/recurrent tonsillitis showed a higher HAdV DNA copy number in T compared to B cell-enriched fraction. Interestingly, in the majority of the tonsils from patients with chronic/recurrent tonsillitis HAdV DNA was detected in T cells only, whereas hypertrophic tonsils demonstrated HAdV DNA in both T and B cell-enriched fractions. In contrast, the majority of EBV positive tonsils revealed a preference for EBV DNA accumulation in the B cell-enriched fraction compared to T cell fraction irrespective of the patients' age.

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