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  • 251. Heddini, Ulrika
    et al.
    Bohm-Starke, Nina
    Grönbladh, Alfhild
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmaceutical Biosciences.
    Nyberg, Fred
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmaceutical Biosciences.
    Nilsson, Kent W.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Johannesson, Ulrika
    GCH1-polymorphism and pain sensitivity among women with provoked vestibulodynia2012In: MOL PAIN, ISSN 1744-8069, Vol. 8, p. 68-Article in journal (Refereed)
    Abstract [en]

    Background: Provoked vestibulodynia (PVD) is a pain disorder localized in the vestibular mucosa. It is the most common cause of dyspareunia among young women and it is associated with general pain hypersensitivity and other chronic pain conditions. Polymorphism in the guanosine triphosphate cyclohydrolase (GCH1) gene has been found to influence general pain sensitivity and the risk of developing a longstanding pain condition. The aim of this study was to investigate GCH1-polymorphism in women with PVD and healthy controls, in correlation to pain sensitivity. Results: We found no correlation between the previously defined pain-protective GCH1-SNP combination and the diagnosis of PVD. Nor any correlation with pain sensitivity measured as pressure pain thresholds on the arm, leg and in the vestibule, coital pain scored on a visual analog scale and prevalence of other bodily pain conditions among women with PVD (n = 98) and healthy controls (n = 102). However, among patients with current treatment (n = 36), there was a significant interaction effect of GCH1-gene polymorphism and hormonal contraceptive (HC) therapy on coital pain (p = 0.04) as well as on pressure pain thresholds on the arm (p = 0.04). PVD patients carrying the specified SNP combination and using HCs had higher pain sensitivity compared to non-carriers. In non-HC-users, carriers had lower pain sensitivity. Conclusions: The results of this study gave no support to the hypothesis that polymorphism in the GCH1-gene contributes to the etiology of PVD. However, among patients currently receiving treatment an interaction effect of the defined SNP combination and use of hormonal contraceptives on pain sensitivity was found. This finding offers a possible explanation to the clinically known fact that some PVD patients improve after cessation of hormonal contraceptives, indicating that PVD patients carrying the defined SNP combination of GCH1 would benefit from this intervention.

  • 252.
    Heddini, Ulrika
    et al.
    Karolinska Institutet.
    Bohm-Starke, Nina
    Karolinska Institutet.
    Grönbladh, Alfhild
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmaceutical Biosciences.
    Nyberg, Fred
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmaceutical Biosciences.
    Nilsson, Kent W.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Johannesson, Ulrika
    Karolinska Institutet.
    Serotonin receptor gene (5HT-2A) polymorphism is associated with provoked vestibulodynia and comorbid symptoms of pain2014In: Journal of Sexual Medicine, ISSN 1743-6095, E-ISSN 1743-6109, Vol. 11, no 12, p. 3064-3071Article in journal (Refereed)
    Abstract [en]

    IntroductionProvoked vestibulodynia (PVD) is a common type of dyspareunia among young women. The patho-physiology remains largely unclear. Women with PVD have general pain hypersensitivity and often report additional pain symptoms. Signs point towards PVD being a chronic pain disorder similar to other syndromes of longstanding pain, including a common comorbidity of anxiety and depression. Polymorphism in the serotonin receptor gene, 5HT-2A, has been associated with other chronic pain disorders such as fibromyalgia but has not been investigated in PVD patients. AimWe aimed to investigate a possible contribution of polymorphism in the 5HT-2A gene to the etiology of PVD as well as a potential influence on pain sensitivity. MethodsIn this case-control study 98 women with PVD and 103 healthy controls between 18 and 44 years and in the same menstrual cycle phase completed questionnaires and underwent quantitative sensory testing. Venous blood samples were collected for DNA isolation. Main Outcome MeasuresConcomitant pain was reported, a bodily pain score was created and pressure pain thresholds (PPTs) on the arm, leg, and in the vestibule were measured. Intensity of coital pain was rated on a visual analog scale, range 0-100. The T102C (rs6313) and A-1438G (rs6311) single nucleotide polymorphisms (SNPs) in the 5HT-2A gene were analyzed. ResultsThe probability of PVD was elevated in participants carrying the 1438G- and 102C-alleles of the 5HT-2A gene (OR 2.9). The G-/C- genotypes were also associated with more concomitant bodily pain in addition to the dyspareunia, but not with experimental PPTs or coital pain ratings. PVD patients reported more concomitant bodily pain and had lower PPTs compared with controls. ConclusionThe results indicate a contribution of alterations in the serotonergic system to the patho-genesis of PVD and gives further evidence of PVD being a general pain disorder similar to other chronic pain disorders. Heddini U, Bohm-Starke N, Gronbladh A, Nyberg F, Nilsson KW, and Johannesson U. Serotonin receptor gene (5HT-2A) polymorphism is associated with provoked vestibulodynia and comorbid symptoms of pain.

  • 253. Heddini, Ulrika
    et al.
    Bohm-Starke, Nina
    Nilsson, Kent W.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm , Centre for Clinical Research, County of Västmanland.
    Johannesson, Ulrika
    Provoked Vestibulodynia-Medical Factors and Comorbidity Associated with Treatment Outcome2012In: Journal of Sexual Medicine, ISSN 1743-6095, E-ISSN 1743-6109, Vol. 9, no 5, p. 1400-1406Article in journal (Refereed)
    Abstract [en]

    Introduction. Provoked vestibulodynia (PVD) is the most common cause of dyspareunia in young women. The etiology is unclear, and there is little knowledge of how to predict treatment outcome.

    Aim. The aim of this study was to identify medical factors associated with treatment outcome and coital pain in women with PVD.

    Methods. Seventy women previously treated for PVD at a vulvar open care unit completed questionnaires and a quantitative sensory testing session.

    Main Outcome Measures. Concomitant bodily pain and treatment outcome were surveyed using a study specific questionnaire. Coital pain was rated on a visual analog scale (VAS), range 0100. Psychometric screening was carried out using the Hospital Anxiety and Depression Scale. Pressure pain thresholds on the arm, leg, and in the vestibulum were measured using pressure algometers.

    Results. Major improvement/complete recovery was more likely in PVD patients with a maximum of one other concomitant pain disorder compared with patients with four or more (odds ratio = 7.8, confidence interval: 1.249.4, P = 0.03). In a multiple linear regression model, the number of other pain disorders (P < 0.01) and a diagnosis of primary PVD (P = 0.04) were positively associated with the coital VAS pain score. Women with secondary PVD reported major improvement/complete recovery to a higher extent than women with primary PVD (z = 2.11, P = 0.04).

    Conclusion. A successful treatment outcome was more likely in PVD patients with fewer other concomitant pain conditions. The number of other bodily pain conditions was also associated to the intensity of the coital pain. Additionally, the results indicate higher incomplete response rates to treatment in women with primary PVD compared with secondary PVD.

  • 254.
    Heddini, Ulrika
    et al.
    Karolinska Institutet, Division of Obstetrics and Gynecology.
    Johannesson, Ulrika
    Karolinska Institutet, Division of Obstetrics and Gynecology.
    Grönbladh, Alfhild
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmaceutical Biosciences.
    Nyberg, Fred
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmaceutical Biosciences.
    Nilsson, Kent W.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Bohm-Starke, Nina
    Karolinska Institutet, Division of Obstetrics and Gynecology.
    A118G polymorphism in the μ-opioid receptor gene and levels of β-endorphin are associated with provoked vestibulodynia and pressure pain sensitivity2014In: Scandinavian Journal of Pain, ISSN 1877-8860, E-ISSN 1877-8879, Vol. 5, no 1, p. 10-16Article in journal (Refereed)
    Abstract [en]

    Background and aims

    Provoked vestibulodynia (PVD) is the most common cause of dyspareunia among young women. The aetiology is largely unknown and treatment is often extensive and longstanding with varying outcomes. Patients display general pain hypersensitivity and there are correlations with other chronic pain syndromes such as fibromyalgia later in life. The A118G polymorphism in the μ-opioid receptor (OPRM1) gene influences endogenous pain regulation and pain sensitivity, but has not been studied in this patient group before. We aimed to investigate a possible association between A118G polymorphism and PVD, with correlation to plasma levels of β-endorphin, and to explore relationships between this polymorphism and pain sensitivity among women with PVD and healthy controls.

    Methods

    This case–control study included 98 women with PVD and 103 controls. Participants filled out study-specific questionnaires and underwent quantitative sensory testing of pressure pain thresholds on the arm, leg and in the vestibular area. Levels of β-endorphin were analyzed by radioimmunoassay using the EURIA-beta-endorphin kit, and the A118G single-nucleotide polymorphism (SNP; rs1799971) in the OPRM1 gene was analyzed using the TaqMan SNP genotyping assay.

    Results

    The 118G allele was more common in controls (44%) than in patients (30%) (p  = 0.042). The odds ratio of having PVD was 1.8 in participants carrying the 118A allele compared to participants hetero- or homozygous for the 118G allele (OR = 1.846, CI: 1.03–3.31, p = 0.039). Pressure pain thresholds on the leg were higher for participants carrying the 118G allele (mean 480 kPa, SD 167.5) than for those carrying the 118A allele (mean 419, SD 150.4, p = 0.008). Levels of β-endorphin were higher in patients (mean 17.9 fmol/ml, SD 4.71) than in controls (mean 15.8 fmol/ml, SD 4.03) (p < 0.001).

    Conclusion

    We found an association between the A118G polymorphism in the OPRM1 gene and an increased risk of PVD and increased pain sensitivity among participants carrying the 118A allele. PVD patients were more sensitive to pressure pain and had higher levels of plasma β-endorphin than controls. The results indicate that differences in endogenous pain modulation involving the opioid system could contribute to the pathophysiology of PVD and the general pain hypersensitivity seen in these women.

    Implications

    The data support the conceptualization of PVD as part of a general pain disorder with a possible genetic predisposition. The age of onset of PVD is usually between 18 and 25 years and already at this age general pain hypersensitivity is present but rarely causing disability. We believe that early recognition and treatment, with the risk of further development of chronic pain taken into consideration, might prevent future aggravated pain problems in this patient group.

  • 255.
    Hedenstierna, Göran
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Clinical Physiology. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Hedenstierna laboratory.
    Tokics, Leif
    Karolinska Hosp, Dept Anesthesia & Intens Care, Huddinge, Sweden.
    Scaramuzzo, Gaetano
    Univ Ferrara, Dept Morphol Surg & Expt Med, Sect Anesthesia & Intens Care, Ferrara, Italy.
    Rothen, Hans U.
    Univ Bern, Univ Hosp, Dept Intens Care Med, Inselspital, Bern, Switzerland.
    Edmark, Lennart
    Vasteras Hosp, Dept Anesthesia & Intens Care, Vasteras, Sweden.
    Öhrvik, John
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Oxygenation Impairment during Anesthesia: Influence of Age and Body Weight2019In: Anesthesiology, ISSN 0003-3022, E-ISSN 1528-1175, Vol. 131, no 1, p. 46-57Article in journal (Refereed)
    Abstract [en]

    Background: Anesthesia is increasingly common in elderly and overweight patients and prompted the current study to explore mechanisms of age- and weight-dependent worsening of arterial oxygen tension (Pao(2)). Methods: This is a primary analysis of pooled data in patients with (1) American Society of Anesthesiologists (ASA) classification of 1; (2) normal forced vital capacity; (3) preoxygenation with an inspired oxygen fraction (FIO2) more than 0.8 and ventilated with FIO2 0.3 to 0.4; (4) measurements done during anesthesia before surgery. Eighty patients (21 women and 59 men, aged 19 to 69 yr, body mass index up to 30 kg/m(2)) were studied with multiple inert gas elimination technique to assess shunt and perfusion of poorly ventilated regions (low ventilation/perfusion ratio [(V) over dot(A)/Q]) and computed tomography to assess atelectasis. Results: Pao(2) /FIO2 was lower during anesthesia than awake (368; 291 to 470 [median; quartiles] vs. 441; 397 to 462 mm Hg; P = 0.003) and fell with increasing age and body mass index. Log shunt was best related to a quadratic function of age with largest shunt at 45 yr (r(2) = 0.17, P = 0.001). Log shunt was linearly related to body mass index (r(2) = 0.15, P < 0.001). A multiple regression analysis including age, age(2), and body mass index strengthened the association further (r(2) = 0.27). Shunt was highly associated to atelectasis (r(2) = 0.58, P < 0.001). Log low (V) over dot(A)/Q showed a linear relation to age (r(2) = 0.14, P = 0.001). Conclusions: Pao(2)/FIO2 ratio was impaired during anesthesia, and the impairment increased with age and body mass index. Shunt was related to atelectasis and was a more important cause of oxygenation impairment in middle-aged patients, whereas low (V) over dot(A)/Q, likely caused by airway closure, was more important in elderly patients. Shunt but not low (V) over dot(A)/Q increased with increasing body mass index. Thus, increasing age and body mass index impaired gas exchange by different mechanisms during anesthesia.

  • 256. Hellden, Anders
    et al.
    Odar-Cederlof, Ingegerd
    Nilsson, Göran
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Sjoviker, Susanne
    Söderström, Anders
    von Euler, Mia
    Ohlen, Gunnar
    Bergman, Ulf
    Renal function estimations and dose recommendations for dabigatran, gabapentin and valaciclovir: a data simulation study focused on the elderly2013In: BMJ Open, ISSN 2044-6055, E-ISSN 2044-6055, Vol. 3, no 4, p. e002686-Article in journal (Refereed)
    Abstract [en]

    Objectives The thrombin inhibitor dabigatran is mainly excreted by the kidneys. We investigated whether the recommended method for estimation of renal function used in the clinical trials, the Cockcroft-Gault (CG(old)) equation and the estimated glomerular filtration rate (eGFR) modification of diet in renal disease equation 4 (MDRD4), differ in elderly participants, resulting in erroneously higher dose recommendations of dabigatran, which might explain the serious, even fatal, bleeding reported. The renally excreted drugs gabapentin and valaciclovir were also included for comparison. Design A retrospective data simulation study. Participants Participants 65years and older included in six different studies. Main outcome measure Estimated renal function by CG based on uncompensated (old Jaffe' method) creatinine (CG(old)) or by MDRD4 based on standardised compensated P-creatinine traceable to isotope-dilution mass spectrometry, and the resulting doses. Results 790 participants (432 females), mean age (SD) 77.6 +/- 5.7years. Mean estimated creatinine clearance (eCrCl) by the CG(old) equation was 44.2 +/- 14.8ml/min, versus eGFR 59.6 +/- 20.7ml/min/1.73m(2) with MDRD4 (p<0.001), absolute median difference 13.5, 95% CI 12.9 to 14.2. MDRD4 gave a significantly higher mean dose (valaciclovir +21%, dabigatran +25% and gabapentin +37%) of all drugs (p<0.001). With MDRD4 58% of the women would be recommended a full dose of dabigatran compared with 18% if CG(old) is used. Conclusions MDRD4 would result in higher recommended doses of the three studied drugs to elderly participants compared with CG, particularly in women, and thus increased the risk of dose and concentration-dependent adverse reactions. It is important to know which method of estimation of renal function the Summary of Products Characteristics was based on, and use only that one when prescribing renally excreted drugs with narrow safety window. Doses based on recently developed methods for estimation of renal function may be associated with considerable risk of overtreatment in the elderly.

  • 257.
    Hellerstedt-Börjesson, Susanne
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Caring Sciences.
    Arving, Cecilia
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Caring Sciences.
    Nordin, Karin
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Caring Sciences.
    Fjällskog, Marie-Louise
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Radiology, Oncology and Radiation Science, Oncology. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Endocrine Oncology.
    Holmström-Knutsson, Iinger
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Health Services Research. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Women with breast cancer: Experiences and impact of chemotherapy-induced pain on daily life2014In: European Journal of Cancer, ISSN 0959-8049, E-ISSN 1879-0852, Vol. 50, no S2, p. S108-S108Article in journal (Other academic)
  • 258.
    Hellstrand, Mats
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland. Competence Ctr Hlth, S-72189 Vasteras, Region Vastmanl, Sweden..
    Simonsson, Bo
    Competence Ctr Hlth, S-72189 Vasteras, Region Vastmanl, Sweden..
    Engström, Sevek
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Family Medicine and Preventive Medicine. Competence Ctr Hlth, S-72189 Vasteras, Region Vastmanl, Sweden..
    Nillson, Kent W.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Molarius, Anu
    Competence Ctr Hlth, S-72189 Vasteras, Region Vastmanl, Sweden.;Karlstad Univ, Dept Publ Hlth, Karlstad, Sweden..
    A health dialogue intervention reduces cardiovascular risk factor levels: a population based randomised controlled trial in Swedish primary care setting with 1-year follow-up2017In: BMC Public Health, ISSN 1471-2458, E-ISSN 1471-2458, Vol. 17, article id 669Article in journal (Refereed)
    Abstract [en]

    Background: The total number of cardiovascular (CVD) deaths accounted for almost a third of all deaths globally in 2013. Population based randomised controlled trials, managed within primary care, on CVD risk factor interventions are scarce. The aim of the study was to evaluate the effects of a health dialogue intervention in a primary care setting offered to a population at the age of 55 years, focusing on CVD risk factors. Methods: The study was performed in five primary health care centres in the county of Vastmanland, Sweden between April 2011 and December 2012. Men and women were randomly assigned to intervention (n = 440) and control groups (n = 440). At baseline, both groups filled in a health questionnaire and serum cholesterol, fasting plasma glucose, glycated haemoglobin (HbA1c), weight, height, waist (WC) and hip circumference, waist hip ratio (WHR) and systolic/diastolic blood pressure were measured. Intervention group attended a health dialogue, supported by a visualised health profile, with a possibility for further activities. Participation rates at baseline were 53% and 52% respectively. A 1-year follow-up was carried out. Results: The intervention group (n = 165) showed reductions compared to the control group (n = 177) concerning body mass index (BMI) (0.3 kg/m(2), p = .031), WC (2.1 cm, p <= .001) and WHR (. 002, p <= .001) at the 1-year follow-up. No differences between the intervention and control groups were found in other variables. Intervention group, compared to baseline, had reduced weight, BMI, WC, WHR, HbA1c, and diet, while the men in the control group had reduced their alcohol consumption. Conclusions: A health dialogue intervention at the age of 55 years, conducted in ordinary primary care, showed a moderate effect on CVD risk factor levels, in terms of BMI, WC and WHR.

  • 259.
    Hellström, Charlotta
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Adolescent Gaming and Gambling in Relation to Negative Social Consequences and Health2015Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The aims of the thesis were to study relationships between the effects of online gaming and gambling and negative social consequences and ill health among adolescents and to determine whether gaming and gambling activities occur together.

    The papers in this thesis used epidemiological methods to obtain self-report information from Swedish adolescents aged 13–18 years. Time spent in online gaming was associated with negative social consequences, and this relationship was explained by online gaming motives. Gaming for fun and social motives was associated with a reduced risk of negative social consequences, whereas gaming to escape problems, gain status, or meet demands from others was associated with an increased risk.

    Increased online gaming time on weekdays increased the probability of having depressive, musculoskeletal, or psychosomatic symptoms, and was related to online gaming motives. The probability of ill health was low in those who reported gaming for fun or social motives. Adolescents with symptoms of attention deficit hyperactivity disorder (ADHD) were more sensitive to gambling frequency and to developing a gambling problem. However, among those identified as susceptible, adolescents with ADHD were equally affected compared with other susceptible participants in terms of their gambling frequency.

    Boys had a higher probability than girls of participating in online gambling in association with online gaming. Having at least one parent born outside Scandinavia was associated with a higher probability of online gambling, especially among girls. The effect of alcohol use as a factor contributing to online gambling was greater among boys than among girls.

    The results of this thesis contribute new knowledge about sex differences in online gaming and gambling behaviours and add to the limited research on online gaming and online gambling behaviours among adolescent girls. Gaming motives may be helpful for identifying online gamers needing support to reduce their unhealthy gaming behaviour. Information about factors related to gaming and gambling problems may be of interest to clinicians in psychiatry, psychology and social work, as well as to policymakers, parents and teachers involved in adolescent health and development. Effect preventive strategies should consider the sex differences in gaming and gambling behaviour in adolescents.

    List of papers
    1. Influences of motives to play and time spent gaming on the negative consequences of adolescent online computer gaming
    Open this publication in new window or tab >>Influences of motives to play and time spent gaming on the negative consequences of adolescent online computer gaming
    2012 (English)In: Computers in human behavior, ISSN 0747-5632, E-ISSN 1873-7692, Vol. 28, no 4, p. 1379-1387Article in journal (Refereed) Published
    Abstract [en]

    In this study we examined the relation between gaming-time, motives to play, and negative consequences due to playing MMORPGs. A total of 7757 Swedish adolescents (3872 boys and 3885 girls) between 13 and 18 years of age completed a questionnaire during class hours. Results indicated that time spent on gaming was associated with negative consequences. This relation was further explained by motives to play. Gaming for fun and social motives were associated with a reduced risk whereas gaming to escape, to gain status, or due to demands from others were associated with an increased risk of negative consequences. Motives to play should be considered as a prime indicator for negative consequences, even more than time spent gaming. Implications of these findings for future research are discussed.

    Keywords
    Adolescent, Behaviour problems, Computer games, Consequences, Motivation, Videogames
    National Category
    Medical and Health Sciences
    Identifiers
    urn:nbn:se:uu:diva-178561 (URN)10.1016/j.chb.2012.02.023 (DOI)000304518000033 ()
    Available from: 2012-07-31 Created: 2012-07-31 Last updated: 2017-12-07Bibliographically approved
    2. Effects of adolescent online gaming time and motives on depressive, musculoskeletal, and psychosomatic symptoms
    Open this publication in new window or tab >>Effects of adolescent online gaming time and motives on depressive, musculoskeletal, and psychosomatic symptoms
    2015 (English)In: Upsala Journal of Medical Sciences, ISSN 0300-9734, E-ISSN 2000-1967, Vol. 120, no 4, p. 263-275Article in journal (Refereed) Published
    Abstract [en]

    Aim. To investigate whether adolescent online gaming time and the additive effect of gaming motives were associated with depressive, musculoskeletal, and psychosomatic symptoms. The hypothesis was that adolescents who engage in online gaming with escape motives and increased online gaming time have higher probability for depressive, musculoskeletal, and psychosomatic symptoms compared to adolescents with other online gaming motives and/or less online gaming time.

    Method. An anonymous and voluntary questionnaire was completed during class hours by 7,757 Swedish adolescents aged 13-18 years. The questionnaire included demographic background, gaming habits, and depressive, musculoskeletal, and psychosomatic symptoms.Results. It was found that increased online gaming time during weekdays increased the probability of having depressive, musculoskeletal, and psychosomatic symptoms. However, these relations with time spent gaming were further explained by online gaming motives. Weekday online gaming for more than five hours a day, in combination with escape motives, was associated with an increased probability of depressive symptoms (odds ratio (OR) 4.614, 95% CI 3.230-6.590), musculoskeletal symptoms (OR 2.494, 95% CI 1.598-3.892), and psychosomatic symptoms (OR 4.437, 95% CI 2.966-6.637). The probability of ill health decreased when gaming was for fun or had social motives.

    Conclusion. Excessive gaming time and escape motives were found to be associated with increased probability of ill health among adolescents. Gaming motives may identify gamers in need of support to reduce unhealthy gaming behaviour as well as identify individuals at risk for ill health.

    Keywords
    Adolescent; computer games; depression; health; musculoskeletal symptoms; psychosomatic symptoms
    National Category
    Medical and Health Sciences Psychology
    Research subject
    Family Medicine
    Identifiers
    urn:nbn:se:uu:diva-261153 (URN)10.3109/03009734.2015.1049724 (DOI)000365684900006 ()26072677 (PubMedID)
    Available from: 2015-08-31 Created: 2015-08-31 Last updated: 2017-12-04Bibliographically approved
    3. Gambling frequency and symptoms of attention-deficit hyperactivity disorder in relation to problem gambling among Swedish adolescents: A population-based study
    Open this publication in new window or tab >>Gambling frequency and symptoms of attention-deficit hyperactivity disorder in relation to problem gambling among Swedish adolescents: A population-based study
    Show others...
    2017 (English)In: Upsala Journal of Medical Sciences, ISSN 0300-9734, E-ISSN 2000-1967, Vol. 22, no 2, p. 119-126Article in journal (Refereed) Published
    Abstract [en]

    Aim: To investigate the associations between gambling frequency, attention-deficit hyperactivity disorder (ADHD) symptoms, and problem gambling among adolescent boys and girls. One hypothesis was that adolescents with increased ADHD symptoms have a higher frequency of gambling compared to adolescents with fewer ADHD symptoms.

    Method: A population-based sample of adolescents (aged 15–18 years) completed a questionnaire on demographics, gambling habits, ADHD symptoms, and problematic gambling; 1412 adolescents (from 4440 sampled) with gambling experience were included in the final sample.

    Results: A zero-inflated negative binomial regression analysis revealed that increased ADHD symptoms, higher gambling frequency, and higher age were associated with lower odds for being non-susceptible to gambling problems. Moreover, gambling frequency interacted with ADHD symptoms in predicting probability of being non-susceptible to gambling problems. However, when analysing those already susceptible to problem gambling, ADHD symptoms did not modify the effect of gambling frequency on the expected magnitude of gambling problems. In susceptible individuals, problem gambling increased with both increased ADHD symptoms and increased gambling frequency, but the level of problems due to gambling frequency did not change depending on the ADHD symptom level. There was an interaction effect between sex and gambling frequency in relation to gambling problems.

    Conclusions: Adolescents with ADHD symptoms seem to be more sensitive to gambling, in terms of being susceptible to developing gambling problems. However, once susceptible, adolescents with ADHD symptoms are affected by gambling frequency similarly to other susceptible participants.

    Keywords
    Adolescent, attention-deficit hyperactivity disorder symptoms, gambling, problem gambling, Problem Gambling Severity Index
    National Category
    Medical and Health Sciences Public Health, Global Health, Social Medicine and Epidemiology
    Research subject
    Family Medicine
    Identifiers
    urn:nbn:se:uu:diva-261154 (URN)10.1080/03009734.2017.1294636 (DOI)000401756500008 ()28436719 (PubMedID)
    Available from: 2015-08-31 Created: 2015-08-31 Last updated: 2018-09-14Bibliographically approved
    4. Online computer gaming among adolescent girls is associated with higher probability for online gambling
    Open this publication in new window or tab >>Online computer gaming among adolescent girls is associated with higher probability for online gambling
    Show others...
    (English)Article in journal (Refereed) Submitted
    National Category
    Public Health, Global Health, Social Medicine and Epidemiology
    Research subject
    Family Medicine
    Identifiers
    urn:nbn:se:uu:diva-261155 (URN)
    Available from: 2015-08-31 Created: 2015-08-31 Last updated: 2015-10-01
  • 260.
    Hellström, Charlotta
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Online gaming in relation to negative consequences and ill health among adolescents2013Licentiate thesis, comprehensive summary (Other academic)
    List of papers
    1. Influences of motives to play and time spent gaming on the negative consequences of adolescent online computer gaming
    Open this publication in new window or tab >>Influences of motives to play and time spent gaming on the negative consequences of adolescent online computer gaming
    2012 (English)In: Computers in human behavior, ISSN 0747-5632, E-ISSN 1873-7692, Vol. 28, no 4, p. 1379-1387Article in journal (Refereed) Published
    Abstract [en]

    In this study we examined the relation between gaming-time, motives to play, and negative consequences due to playing MMORPGs. A total of 7757 Swedish adolescents (3872 boys and 3885 girls) between 13 and 18 years of age completed a questionnaire during class hours. Results indicated that time spent on gaming was associated with negative consequences. This relation was further explained by motives to play. Gaming for fun and social motives were associated with a reduced risk whereas gaming to escape, to gain status, or due to demands from others were associated with an increased risk of negative consequences. Motives to play should be considered as a prime indicator for negative consequences, even more than time spent gaming. Implications of these findings for future research are discussed.

    Keywords
    Adolescent, Behaviour problems, Computer games, Consequences, Motivation, Videogames
    National Category
    Medical and Health Sciences
    Identifiers
    urn:nbn:se:uu:diva-178561 (URN)10.1016/j.chb.2012.02.023 (DOI)000304518000033 ()
    Available from: 2012-07-31 Created: 2012-07-31 Last updated: 2017-12-07Bibliographically approved
    2. Motives for playing and online gaming time in relation to depression, musculoskeletal symptoms and psychosomatic symptoms: a populationbased cross-sectional study of Swedish adolescents
    Open this publication in new window or tab >>Motives for playing and online gaming time in relation to depression, musculoskeletal symptoms and psychosomatic symptoms: a populationbased cross-sectional study of Swedish adolescents
    (English)Manuscript (preprint) (Other academic)
    Abstract [en]

    Objective: Playing online computer games is one of the most common leisure activities among adolescents. However, frequent computer-related activities have been suggested to be a new health risk factor associated with psychosomatic and physical complaints. The present study examined online gaming time and motives for playing, in relation to depression, musculoskeletal symptoms and psychosomatic symptoms. Methods: A total of 7,757 Swedish adolescents aged 13–18 years completed a voluntary, anonymous questionnaire during class hours that included questions about demographic background, depressive symptoms, musculoskeletal symptoms, psychosomatic symptoms and gaming habits. Results: Increased gaming time on weekdays elevated the odds for depression, musculoskeletal symptoms and psychosomatic symptoms. However, the effects of time spent gaming were further explained by motives for playing. Gaming on weekdays for more than five hours a day, in combination with escape motives, revealed the highest odds for depression symptoms (OR = 5.335, p < 0.001), musculoskeletal symptoms (OR = 2.614, p < 0.001), and psychosomatic symptoms (OR = 4.814, p < 0.001). The increases in odds for depression symptoms, musculoskeletal symptoms and psychosomatic symptoms were less obvious among weekend gamers. Conclusion: Motives for playing was the dominant factor in relation to depression, musculoskeletal symptoms and psychosomatic symptoms, whereas the time factor was of less importance. Online gaming motives may identify problem gamers in need of intervention to reduce their unhealthy gaming behaviour. Further research on health issues in relation to online gaming should consider the combined effects of time spent gaming and gaming motives.

    Keywords
    adolescent; computer games; depression; health; musculoskeletal symptoms; psychosomatic symptoms
    National Category
    Medical and Health Sciences
    Research subject
    Family Medicine
    Identifiers
    urn:nbn:se:uu:diva-210295 (URN)
    Note

    Opublicerat manuscript. Ingår som delarbete2 i Licentiatexamination.

    Available from: 2013-11-04 Created: 2013-11-04 Last updated: 2013-11-14Bibliographically approved
  • 261.
    Hellström, Charlotta
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Nilsson, Kent
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Leppert, Jerzy
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Åslund, Cecilia
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Effects of adolescent online gaming time and motives on depressive, musculoskeletal, and psychosomatic symptoms2015In: Upsala Journal of Medical Sciences, ISSN 0300-9734, E-ISSN 2000-1967, Vol. 120, no 4, p. 263-275Article in journal (Refereed)
    Abstract [en]

    Aim. To investigate whether adolescent online gaming time and the additive effect of gaming motives were associated with depressive, musculoskeletal, and psychosomatic symptoms. The hypothesis was that adolescents who engage in online gaming with escape motives and increased online gaming time have higher probability for depressive, musculoskeletal, and psychosomatic symptoms compared to adolescents with other online gaming motives and/or less online gaming time.

    Method. An anonymous and voluntary questionnaire was completed during class hours by 7,757 Swedish adolescents aged 13-18 years. The questionnaire included demographic background, gaming habits, and depressive, musculoskeletal, and psychosomatic symptoms.Results. It was found that increased online gaming time during weekdays increased the probability of having depressive, musculoskeletal, and psychosomatic symptoms. However, these relations with time spent gaming were further explained by online gaming motives. Weekday online gaming for more than five hours a day, in combination with escape motives, was associated with an increased probability of depressive symptoms (odds ratio (OR) 4.614, 95% CI 3.230-6.590), musculoskeletal symptoms (OR 2.494, 95% CI 1.598-3.892), and psychosomatic symptoms (OR 4.437, 95% CI 2.966-6.637). The probability of ill health decreased when gaming was for fun or had social motives.

    Conclusion. Excessive gaming time and escape motives were found to be associated with increased probability of ill health among adolescents. Gaming motives may identify gamers in need of support to reduce unhealthy gaming behaviour as well as identify individuals at risk for ill health.

  • 262.
    Hellström, Charlotta
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Nilsson, Kent W.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Leppert, Jerzy
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Aslund, Cecilia
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Influences of motives to play and time spent gaming on the negative consequences of adolescent online computer gaming2012In: Computers in human behavior, ISSN 0747-5632, E-ISSN 1873-7692, Vol. 28, no 4, p. 1379-1387Article in journal (Refereed)
    Abstract [en]

    In this study we examined the relation between gaming-time, motives to play, and negative consequences due to playing MMORPGs. A total of 7757 Swedish adolescents (3872 boys and 3885 girls) between 13 and 18 years of age completed a questionnaire during class hours. Results indicated that time spent on gaming was associated with negative consequences. This relation was further explained by motives to play. Gaming for fun and social motives were associated with a reduced risk whereas gaming to escape, to gain status, or due to demands from others were associated with an increased risk of negative consequences. Motives to play should be considered as a prime indicator for negative consequences, even more than time spent gaming. Implications of these findings for future research are discussed.

  • 263.
    Hellström, Charlotta
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Vadlin, Sofia
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Nilsson, Kent
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Leppert, Jerzy
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Åslund, Cecilia
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Online computer gaming among adolescent girls is associated with higher probability for online gamblingArticle in journal (Refereed)
  • 264.
    Hellström, Charlotta
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland. School of Health, Care and Social Welfare, Mälardalen University.
    Wagner, Philippe
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Nillson, Kent W.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Leppert, Jerzy
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Aslund, Cecilia
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Gambling frequency and symptoms of attention-deficit hyperactivity disorder in relation to problem gambling among Swedish adolescents: A population-based study2017In: Upsala Journal of Medical Sciences, ISSN 0300-9734, E-ISSN 2000-1967, Vol. 22, no 2, p. 119-126Article in journal (Refereed)
    Abstract [en]

    Aim: To investigate the associations between gambling frequency, attention-deficit hyperactivity disorder (ADHD) symptoms, and problem gambling among adolescent boys and girls. One hypothesis was that adolescents with increased ADHD symptoms have a higher frequency of gambling compared to adolescents with fewer ADHD symptoms.

    Method: A population-based sample of adolescents (aged 15–18 years) completed a questionnaire on demographics, gambling habits, ADHD symptoms, and problematic gambling; 1412 adolescents (from 4440 sampled) with gambling experience were included in the final sample.

    Results: A zero-inflated negative binomial regression analysis revealed that increased ADHD symptoms, higher gambling frequency, and higher age were associated with lower odds for being non-susceptible to gambling problems. Moreover, gambling frequency interacted with ADHD symptoms in predicting probability of being non-susceptible to gambling problems. However, when analysing those already susceptible to problem gambling, ADHD symptoms did not modify the effect of gambling frequency on the expected magnitude of gambling problems. In susceptible individuals, problem gambling increased with both increased ADHD symptoms and increased gambling frequency, but the level of problems due to gambling frequency did not change depending on the ADHD symptom level. There was an interaction effect between sex and gambling frequency in relation to gambling problems.

    Conclusions: Adolescents with ADHD symptoms seem to be more sensitive to gambling, in terms of being susceptible to developing gambling problems. However, once susceptible, adolescents with ADHD symptoms are affected by gambling frequency similarly to other susceptible participants.

  • 265.
    Hellström, Charlotta
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Åslund, Cecilia
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Motives for playing and online gaming time in relation to depression, musculoskeletal symptoms and psychosomatic symptoms: a populationbased cross-sectional study of Swedish adolescentsManuscript (preprint) (Other academic)
    Abstract [en]

    Objective: Playing online computer games is one of the most common leisure activities among adolescents. However, frequent computer-related activities have been suggested to be a new health risk factor associated with psychosomatic and physical complaints. The present study examined online gaming time and motives for playing, in relation to depression, musculoskeletal symptoms and psychosomatic symptoms. Methods: A total of 7,757 Swedish adolescents aged 13–18 years completed a voluntary, anonymous questionnaire during class hours that included questions about demographic background, depressive symptoms, musculoskeletal symptoms, psychosomatic symptoms and gaming habits. Results: Increased gaming time on weekdays elevated the odds for depression, musculoskeletal symptoms and psychosomatic symptoms. However, the effects of time spent gaming were further explained by motives for playing. Gaming on weekdays for more than five hours a day, in combination with escape motives, revealed the highest odds for depression symptoms (OR = 5.335, p < 0.001), musculoskeletal symptoms (OR = 2.614, p < 0.001), and psychosomatic symptoms (OR = 4.814, p < 0.001). The increases in odds for depression symptoms, musculoskeletal symptoms and psychosomatic symptoms were less obvious among weekend gamers. Conclusion: Motives for playing was the dominant factor in relation to depression, musculoskeletal symptoms and psychosomatic symptoms, whereas the time factor was of less importance. Online gaming motives may identify problem gamers in need of intervention to reduce their unhealthy gaming behaviour. Further research on health issues in relation to online gaming should consider the combined effects of time spent gaming and gaming motives.

  • 266.
    Henriksen, Egil
    et al.
    Vastmanland Cty Hosp, Dept Clin Physiol, SE-72189 Vasteras, Sweden.
    Selmeryd, Jonas
    Vastmanland Cty Hosp, Dept Clin Physiol, SE-72189 Vasteras, Sweden.
    Hedberg, Pär
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland. Vastmanland Cty Hosp, Dept Clin Physiol, SE-72189 Vasteras, Sweden.
    Associations of left atrial volumes and Doppler filling indices with left atrial function in acute myocardial infarction2019In: Clinical Physiology and Functional Imaging, ISSN 1475-0961, E-ISSN 1475-097X, Vol. 39, no 1, p. 85-92Article in journal (Refereed)
    Abstract [en]

    Recent findings suggest that left atrial (LA) function is more strongly related to adverse prognosis than LA volumes. We aimed to evaluate the associations between LA volumes and Doppler filling indices with LA function. Echocardiographic LA volumes (LAVs), mitral valve early (MV-E) and late (MV-A) peak flow velocities, and mitral atrioventricular plane tissue-Doppler early (TD-e ') and late (TD-a ') peak velocities were obtained in 320 patients with acute myocardial infarction (AMI) free from atrial fibrillation and more than moderate valvular disease. LA function was estimated as the LA emptying fraction (LAEF), that is 100x (LAVmax-LAVmin)/LAVmax. LA reservoir volume was calculated as LAVmax-LAVmin and LA transit volume as LV stroke volume-reservoir volume. In restricted cubic spline regression analyses with multivariable adjustment, a reduced LAEF was strongly associated with smaller reservoir volume, larger transit volume, LAVmax, LAVpreA and especially LAVmin. MV-E linearly increased with a lower LAEF, whereas MV-A decreased but only below LAEF levels of approximately 45%. The resulting E/A ratio showed a sudden increase in LAEF levels below similar to 45%. Lower TD-a ' was linearly associated with a lower LAEF. In conclusion, a reduced atrial function was associated with smaller LA reservoir volume, larger LA transit volume, lower TD-a ', a non-linear decrease in MV-A and a non-linear increase in E/A. Our findings are likely a reflection of the adaptation to sustain LV filling volume and counteracting a rise in pulmonary venous pressure in face of an enhanced LV end-diastolic pressure.

  • 267. Henriksen, Egil
    et al.
    Selmeryd, Jonas
    Leppert, Jerzy
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Hedberg, Pär
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Echocardiographic assessment of maximum and minimum left atrial volumes: a population-based study of middle-aged and older subjects without apparent cardiovascular disease2015In: International Journal of Cardiac Imaging, ISSN 1569-5794, E-ISSN 1875-8312, Vol. 31, no 1, p. 57-64Article in journal (Refereed)
    Abstract [en]

    The aim of the present study was to obtain reference values of maximum and minimum left atrial volumes (maxLAV and minLAV, respectively) in a population-based subset without apparent cardiovascular disease or other factors potentially associated with left atrial enlargement. Because left ventricular diastolic dysfunction is commonly found in elderly subjects, we also tried to identify the presence of possible preclinical diastolic dysfunction in the study population. A population-based sample of 168 subjects (127 men and 41 women) underwent two-dimensional echocardiography using the single-plane disc method to determine maxLAV and minLAV. maxLAV and minLAV were indexed to body surface area (maxLAVi and minLAVi, respectively). maxLAVi was independent of age and sex, and produced reference limits (mean +/- A 1.96 SD) of 15-37 mL/m(2). minLAVi was correlated with age, and produced estimated reference limits of 3-15 and 7-23 mL/m(2) in 40- and 80-year-old subjects, respectively. Based on the age-dependent reference values from the European Association of Cardiovascular Imaging, < 5 % of the study population had possible preclinical left ventricular diastolic dysfunction. The present study established normal ranges for maxLAVi and minLAVi in a well-characterized population-based subset without apparent cardiovascular disease or other factors potentially associated with left atrial volume enlargement.

  • 268. Henriksen, Egil
    et al.
    Sundstedt, M
    Hedberg, Per
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm , Centre for Clinical Research, County of Västmanland.
    Despite the large quantity of data on LV performance during exercise, basic data on left ventricular performance are conflicting2008In: Journal of applied physiology, ISSN 8750-7587, E-ISSN 1522-1601, Vol. 104, no 1, p. 281-282Article in journal (Other academic)
  • 269. Henriksen, Egil
    et al.
    Sundstedt, Milena
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm , Centre for Clinical Research, County of Västmanland.
    Hedberg, Pär
    Left ventricular end-diastolic geometrical adjustments during exercise in endurance athletes2008In: Clinical Physiology and Functional Imaging, ISSN 1475-0961, E-ISSN 1475-097X, Vol. 28, no 2, p. 76-80Article in journal (Refereed)
    Abstract [en]

    The increase in left ventricular (LV) end-diastolic volume has recently been shown to explain more than 70% of the increase in stroke volume during upright exercise in endurance athletes. As the end-diastolic volume enhancement not could be explained by an increase in axial cavity length an augmentation in LV short-axis diameters is to be expected. To investigate LV end-diastolic geometrical alterations during exercise, 15 endurance athletes were examined using contrast exercise echocardiography. LV end-diastolic short-axis diameters were made from apical views at several LV cavity levels. From upright rest to upright exercise the LV end-diastolic internal cavity measurements increased significantly. During exercise, the LV cavity became geometrically more spherical with the largest increase in the LV end-diastolic short-axis cavity diameters in the mid and apical parts of the left ventricle. The LV internal long axis showed significant increase from rest to exercise but the absolute increase was small.

  • 270.
    Hermanson, M.
    et al.
    Department of Clinical Sciences Lund, Orthopaedics, Lund University, Skåne University Hospital.
    Hägglund, G.
    Department of Clinical Sciences Lund, Orthopaedics, Lund University, Skåne University Hospital.
    Riad, J.
    Department of Clinical Sciences, Skaraborgs Hospital/Skövde.
    Rodby-Bousquet, Elisabet
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Inter- and intra-rater reliability of the head-shaft angle in children with cerebral palsy2017In: Journal of Children's Orthopaedics, ISSN 1863-2521, E-ISSN 1863-2548, Vol. 11, no 4, p. 256-262Article in journal (Refereed)
    Abstract [en]

    Purpose Children with cerebral palsy (CP) are at increased risk for hip dislocation. This can be prevented in most cases using surveillance programmes that include radiographic examinations. Known risk factors for hip dislocation include young age, high Gross Motor Function Classification System (GMFCS) level and high migration percentage (MP). The head-shaft angle (HSA) has recently been described as an additional risk factor. The study aim was to determine inter- and intra-rater reliability of the HSA in a surveillance programme for children with CP.

    Methods We included hip radiographs from the CP surveillance programme CPUP in southern Sweden during the first half of 2016. Fifty radiographs were included from children at GMFCS levels II-V, with a mean age of 6.6 (SD 3.2) years. Three raters measured the HSA of one hip (left or right) at baseline and four weeks later; intraclass correlation coefficient (ICC) was used to estimate inter- and intra-rater reliability.

    Results Inter-and intra-rater reliability were excellent for the HSA, with ICC 0.92 (95% CI 0.87-0.96) and ICC 0.99 ( 95% CI 0.98-0.99), respectively.

    Conclusion The HSA showed excellent inter- and intra-rater reliability for children with CP, providing further evidence for use of the HSA as an additional factor for identifying risk for further hip displacement or dislocation.

  • 271. Hermanson, M
    et al.
    Hägglund, G
    Riad, J
    Rodby-Bousquet, Elisabet
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland. Lund University.
    Wagner, P
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Prediction of hip displacement in children with cerebral palsy: development of the CPUP hip score2015In: The Bone & Joint Journal, ISSN 2049-4394, E-ISSN 2049-4408, Vol. 97-B, no 10, p. 1441-1444Article in journal (Refereed)
    Abstract [en]

    Hip displacement, defined in this study as a migration percentage (MP) of more than 40%, is a common, debilitating complication of cerebral palsy (CP). In this prospective study we analysed the risk of developing hip displacement within five years of the first pelvic radiograph. All children with CP in southern and western Sweden are invited to register in the hip surveillance programme CPUP. Inclusion criteria for the two groups in this study were children from the CPUP database born between 1994 and 2009 with Gross Motor Function Classification System (GMFCS) III to V. Group 1 included children who developed hip displacement, group 2 included children who did not develop hip displacement over a minimum follow-up of five years. A total of 145 children were included with a mean age at their initial pelvic radiograph of 3.5 years (0.6 to 9.7). The odds ratio for hip displacement was calculated for GMFCS-level, age and initial MP and head-shaft angle. A risk score was constructed with these variables using multiple logistic regression analysis. The predictive ability of the risk score was evaluated using the area under the receiver operating characteristics curve (AUC). All variables had a significant effect on the risk of a MP > 40%. The discriminatory accuracy of the CPUP hip score is high (AUC = 0.87), indicating a high ability to differentiate between high- and low-risk individuals for hip displacement. The CPUP hip score may be useful in deciding on further follow-up and treatment in children with CP.

  • 272.
    Hersi, Abdi-Fatah
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences. Västmanland Cty Hosp, Dept Surg, Västerås, Sweden.
    Eriksson, Staffan
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland. Västmanland Cty Hosp, Dept Surg, Västerås, Sweden.
    Ramos, Joakim
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland. Västmanland Cty Hosp, Dept Radiol, Västerås, Sweden.
    Abdsaleh, Shahin
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Radiology.
    Wärnberg, Fredrik
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Endocrine Surgery.
    Karakatsanis, Andreas
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Endocrine Surgery.
    A combined, totally magnetic technique with a magnetic marker for non-palpable tumour localization and superparamagnetic iron oxide nanoparticles for sentinel lymph node detection in breast cancer surgery2019In: European Journal of Surgical Oncology, ISSN 0748-7983, E-ISSN 1532-2157, Vol. 45, no 4, p. 544-549Article in journal (Refereed)
    Abstract [en]

    Background: Surgery for non-palpable breast cancer may often be a challenging procedure. Recently, a magnetic seed (Magseed®) used for tumour localization has been developed. Superparamagnetic iron oxide nanoparticles (SPIO) for sentinel lymph node (SN) detection is a novel tracer that may be injected up to four weeks preoperatively. This study is the first combining the magnetic seed and SPIO.

    Material and methods: Patients planned for breast conserving surgery and SN-biopsy (SNB) were recruited from two units in Sweden. Patients underwent lesion localization with Magseed® and SPIO injection (Magtrace™) by the breast radiologist in the preoperative period. Feasibility of successful lesion localization and excision together with a successful SNB detection was evaluated. Seed migration, number of SNs, specimen volume and calculated resection ratio (CRR) were reported.A survey of the physicians’ experience was conducted.

    Results: Localization was performed at a median of three days before surgery (range 0–25). All 32 patients underwent microscopically radical resection with a CRR of 1.49. No seed migration was noticed. SNB was successful in all patients. A median of two SNs was retrieved. Radiologists and surgeons reported the procedure easy to learn and outperformed guidewire localization in terms of localization and excision time. They thought the technique facilitated planning localization and surgery.

    Conclusions: The combined magnetic technique provided accuracy in tumour localization and SN detection without excess tissue excision and with promising results for flexibility in delivery of care. Larger studies are needed to confirm these findings.

  • 273. Heyman, J
    et al.
    Ohrvik, John
    Uppsala University, Interfaculty Units, Centre for Clinical Research.
    Leppert, Jerzy
    Uppsala University, Interfaculty Units, Centre for Clinical Research.
    Distension of painful structures in the treatment for chronic pelvic pain in Women: Results from a pilot study2006In: Acta Obstet Gynecol Scand, ISSN 0001-6349, Vol. 85, no 5, p. 599-603Article in journal (Refereed)
  • 274.
    Hodgins, S.
    et al.
    Univ Montreal, Ctr Rech, Inst Univ Sante Mentale Montreal, Dept Psychiat, Montreal, PQ H1N 3M5, Canada.;Karolinska Inst, Dept Clin Neurosci, Solna, Sweden..
    Larm, Peter
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland. Malardalens Univ, Sch Hlth Care & Social Welf, Box 883, S-72123 Vasteras, Sweden..
    Westerman, J.
    Stockholm Univ, Swedish Inst Social Res, SE-10691 Stockholm, Sweden..
    Individuals developing schizophrenia are hidden among adolescent substance misusers2016In: Psychological Medicine, ISSN 0033-2917, E-ISSN 1469-8978, Vol. 46, no 14, p. 3041-3050Article in journal (Refereed)
    Abstract [en]

    Background: Strategies are needed to identify youth developing schizophrenia. The present study aimed to determine whether adolescents treated for substance misuse were at elevated risk to develop schizophrenia, whether this risk has changed since the late 1960s, and whether substance misuse in adolescence predicted poorer outcomes through adulthood.

    Method: In a Swedish city, since the mid-1960s there has been only one clinic for adolescent substance misuse. Three samples from this clinic were studied: 1992 individuals treated from 1968 to 1971 followed to age 50 years; 1576 treated from 1980 to 1984 followed to age 35 years; and 180 treated in 2004 followed to age 22 years. Each clinical sample was matched on age, sex and place of birth to an equal, or larger, number of randomly selected individuals from the general population. Schizophrenia, substance use disorders, physical disorders related to substance misuse, criminal convictions, poverty and death were identified using national registers.

    Results: Individuals treated for substance misuse in adolescence were at increased risk to subsequently develop schizophrenia: in males the increase was approximately four-fold and in females between five- and seven-fold. There was no difference in risk for those treated in 1968-1971 and from 1980 to 1984 when cannabis use increased from 37.6% to 49.8% of the clinical samples. Among males who developed schizophrenia, treatment for substance misuse was associated with increased risk of substance use disorders and criminal convictions through adulthood.

    Conclusions: Treatment programmes for adolescents misusing substances include a disproportionate number developing schizophrenia. Early detection and treatment have the potential to improve long-term outcomes.

  • 275. Hodgins, Sheilagh
    et al.
    Lövenhag, Sara
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Rehn, Mattias
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Nilsson, Kent W.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    A 5-year follow-up study of adolescents who sought treatment for substance misuse in Sweden2014In: European Child and Adolescent Psychiatry, ISSN 1018-8827, E-ISSN 1435-165X, Vol. 23, no 5, p. 347-360Article in journal (Refereed)
    Abstract [en]

    Previous studies have shown that substance misuse in adolescence is associated with increased risks of hospitalizations for mental and physical disorders, convictions for crimes, poverty, and premature death from age 21 to 50. The present study examined 180 adolescent boys and girls who sought treatment for substance misuse in Sweden. The adolescents and their parents were assessed independently when the adolescents first contacted the clinic to diagnose mental disorders and collect information on maltreatment and antisocial behavior. Official criminal files were obtained. Five years later, 147 of the ex-clients again completed similar assessments. The objectives were (1) to document the prevalence of alcohol use disorders (AUD) and drug use disorders (DUD) in early adulthood; and (2) to identify family and individual factors measured in adolescence that predicted these disorders, after taking account of AUD and DUD in adolescence and treatment. Results showed that AUD, DUD, and AUD + DUD present in mid-adolescence were in most cases also present in early adulthood. Prediction models detected no positive effect of treatment in limiting persistence of these disorders. Thus, treatment-as-usual provided by the only psychiatric service for adolescents with substance misuse in a large urban center in Sweden failed to prevent the persistence of substance misuse. Despite extensive clinical assessments of the ex-clients and their parents, few factors assessed in mid-adolescence were associated with substance misuse disorders 5 years later. It may be that family and individual factors in early life promote the mental disorders that precede adolescent substance misuse.

  • 276. Hooshang, M
    et al.
    Öhrvik, J
    Uppsala University, Interfaculty Units, Centre for Clinical Research.
    Interactive effect of soil warming and fertilization on root production, mortality and longevity in a Norway spruce stand in Northern Sweden2004In: Global Change Biology, no 10Article in journal (Refereed)
  • 277.
    Hosseinali Khani, Maziar
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm , Centre for Clinical Research, County of Västmanland. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Colorectal Surgery.
    Rectal Cancer: Surgical Strategies and Histopathological Aspects2011Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The management of rectal cancer has changed in many countries over the last two decades and resulted in improved survival for the majority of rectal cancer patients. In this thesis some surgical strategies and histopathological aspects to improve and clarify the management of rectal cancer patients are investigated.

    Even in the era of TME surgery and radiotherapy, a higher local recurrence rate and shorter survival for rectal cancer patients operated with abdominoperineal resection is reported. In the first paper we describe a new strategy with partial anterior en bloc resection of either the prostate or the vagina, resulting in very low local recurrence rates and excellent long-term survival. Histopathological examination of the specimen lays the foundation for decision making on oncological therapy. A positive circumferential resection margin (CRM) has, in previous papers, been related to a high risk of local recurrence. In the second paper we show that a CRM ≤ 1 mm was not correlated with an increased risk of local recurrence when patients were managed in a multidisciplinary setting with preoperative radiotherapy and optimal TME surgery. As the complexity of rectal cancer management is increasing, demands on organizational structure are growing. In paper three we could show that long-term survival was increased for all rectal cancer patients after the centralization to a single unit. Whether or not to resect the primary rectal tumour in patients with metastatic disease is an ongoing debate in the literature. In paper four, we studied the national management of rectal cancer patients with primary metastatic disease. Nineteen per cent of rectal cancer patients present with Stage IV disease and, at a national level, there is a clear shift to a more selective and restrictive approach. The 30-day mortality was low for patients that underwent a resectional surgery, for patients having an exploratory laparotomy, however, it was high. Overall survival was improved over time even though up to one fourth of patients received no surgical treatment.

    List of papers
    1. Abdominoperineal excision with partial anterior en bloc resection in multimodal management of low rectal cancer: a strategy to reduce local recurrence.
    Open this publication in new window or tab >>Abdominoperineal excision with partial anterior en bloc resection in multimodal management of low rectal cancer: a strategy to reduce local recurrence.
    Show others...
    2006 (English)In: Dis Colon Rectum, ISSN 0012-3706, Vol. 49, no 6, p. 833-40Article in journal (Refereed) Published
    Keywords
    Abdomen/*surgery, Adult, Aged, Aged; 80 and over, Cohort Studies, Combined Modality Therapy, Dissection/*methods, Female, Humans, Male, Middle Aged, Neoplasm Recurrence; Local/*prevention & control, Perineum/*surgery, Prostate/surgery, Rectal Neoplasms/mortality/pathology/*surgery, Survival Rate, Treatment Outcome, Vagina/surgery
    Identifiers
    urn:nbn:se:uu:diva-10265 (URN)16619115 (PubMedID)
    Available from: 2007-03-08 Created: 2007-03-08 Last updated: 2011-04-04
    2. Is the circumferential resection margin a predictor of local recurrence after preoperative radiotherapy and optimal surgery for rectal carcinoma?
    Open this publication in new window or tab >>Is the circumferential resection margin a predictor of local recurrence after preoperative radiotherapy and optimal surgery for rectal carcinoma?
    2007 (English)In: Colorectal Disease, ISSN 1462-8910, E-ISSN 1463-1318, Vol. 9, no 8, p. 706-712Article in journal (Refereed) Published
    Abstract [en]

    OBJECTIVE: Circumferential resection margin (CRM) involvement has been correlated with a high risk of developing local recurrence. The aim of this study was to examine the prognostic significance of the CRM involvement after curative resection of rectal cancer in patients treated with preoperative radiotherapy and postoperative chemotherapy where indicated. METHOD: All patients with rectal cancer treated in a regional central unit from 1996 to 2004 were identified. A surgical resection was performed on 257 patients, and in 229 of these this was assessed as potentially curative. The CRM was examined in all patients. A CRM of < or = 1 mm was considered positive. RESULTS: A positive margin was seen in 19 (8%) patients. At a median follow up of 40 months, only four (1.7%) patients had developed local recurrence, one of whom had a positive CRM. In the four patients the tumour was 5 cm or less from the anal verge. There were no significant differences regarding local recurrence and survival between CRM positive and negative tumours. CONCLUSION: Rectal cancer managed by combined radiochemotherapy and surgery resulted in a low positive CRM rate and a low local recurrence rate. An involved CRM was not a predictor of local recurrence.

    Keywords
    Rectal cancer, surgery, circumferential resection margin, local recurrence, survival
    National Category
    Medical and Health Sciences
    Identifiers
    urn:nbn:se:uu:diva-11653 (URN)10.1111/j.1463-1318.2007.01263.x (DOI)000249419200006 ()17535279 (PubMedID)
    Available from: 2007-10-10 Created: 2007-10-10 Last updated: 2017-12-11Bibliographically approved
    3. Centralization of rectal cancer surgery improves long-term survival
    Open this publication in new window or tab >>Centralization of rectal cancer surgery improves long-term survival
    2010 (English)In: Colorectal Disease, ISSN 1462-8910, E-ISSN 1463-1318, Vol. 12, no 9, p. 874-879Article in journal (Refereed) Published
    Abstract [en]

    Aim In 1996, rectal cancer surgery in the Swedish county of Vastmanland was centralized to a single colorectal unit. At the same time, total mesorectal excision and multidisciplinary team meetings were introduced. The aim of this audit was to determine the long-term results before and after centralization. Method All consecutive rectal cancer patients who underwent curative or palliative surgery at one of the county's four hospitals between 1993 and 1996 (n = 133, group 1) were compared with patients operated at the new centralized colorectal unit between 1996 and 1999 (n = 144, group 2). Results Preoperative radiotherapy was common in both groups, but in group 2, it was planned using MRI. Local recurrences were detected in 8% of all patients operated in group 1 vs 3.5% in group 2 (P = 0.043). The overall 5-year survival for all patients in group 1 was 38 vs 62% in group 2 (P = 0.003). According to multivariate analysis, the new colorectal unit was an independent predictor for improved long-term survival. Conclusion This population-based audit shows reduced local recurrence rate and prolonged overall survival for rectal cancer patients after centralization to a single colorectal unit with multidisciplinary management and increased subspecialization.

    Keywords
    Rectal cancer, surgery, centralization, survival
    National Category
    Medical and Health Sciences
    Identifiers
    urn:nbn:se:uu:diva-135406 (URN)10.1111/j.1463-1318.2009.02098.x (DOI)000280990100007 ()
    Available from: 2010-12-07 Created: 2010-12-06 Last updated: 2017-12-11Bibliographically approved
    4. Treatment strategies for patients with stage IV rectal cancer: a report from the Swedish Rectal Cancer Registry
    Open this publication in new window or tab >>Treatment strategies for patients with stage IV rectal cancer: a report from the Swedish Rectal Cancer Registry
    2012 (English)In: European Journal of Cancer, ISSN 0959-8049, E-ISSN 1879-0852, Vol. 48, no 11, p. 1616-1623Article in journal (Refereed) Published
    Abstract [en]

    Background: The optimal treatment strategy for patients with stage IV rectal cancer is unclear. The aim of the present study was to describe trends and compare the different treatment strategies for this group of patients at a national level and over time.

    Methods: Data from 2758 rectal cancer patients with (stage IV group) and 13 420 without metastases (stage I-III group) were available from the Swedish Rectal Cancer Registry between January 1995 and December 2006.

    Results: Patients with stage IV disease increased from 15 to 19 per cent between 1995 and 2006 (p<0.001) and the frequency of patients not operated increased from 13 to 26 per cent (p<0.001). Postoperative 30 day mortality after bowel resection was 2 per cent and after exploratory laparotomy 9 per cent. Median survival for stage IV patients operated with bowel resection was 16.3 months, an exploratory laparotomy 6.1 months, and for patients having no surgery 4.6 months. Patients aged 60-69 years increased their survival over time, irrespective of the treatment given. In the multivariate analysis, an increased risk of death was associated with: age > 80 years, operation at a local hospital, treatment in earlier time periods, not receiving preoperative radio- or chemotherapy, and not having a bowel resection.

    Conclusion: Survival for stage IV rectal cancer patients improved in the latest time period despite the great increase in non-operated patients. Patients aged > 80 years should be carefully assessed and staged before surgery. The survival advantage for stage IV rectal cancer patients who underwent primary tumour resection is probably due to selection bias.

    Keywords
    Rectal cancer; Stage IV; Surgery; Palliative; Oncology; Survival
    National Category
    Surgery
    Research subject
    Surgery
    Identifiers
    urn:nbn:se:uu:diva-147879 (URN)10.1016/j.ejca.2011.12.012 (DOI)000305781300004 ()
    Available from: 2011-03-01 Created: 2011-03-01 Last updated: 2018-06-20
  • 278.
    Hosseinali Khani, Maziar
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland. Vastmanlands Hosp Vasteras, Dept Surg, SE-72189 Vasteras, Swedeno.
    Ji, Jianguang
    Lund Univ, Ctr Primary Hlth Care Res, Dept Clin Sci, Lund, Sweden..
    Leppert, Jerzy
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland. Vastmanlands Hosp Vasteras, Dept Med, SE-72189 Vasteras, Sweden..
    Sundquist, Kristina
    Lund Univ, Ctr Primary Hlth Care Res, Dept Clin Sci, Lund, Sweden..
    Chabok, Abbas
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland. Vastmanlands Hosp Vasteras, Dept Surg, SE-72189 Vasteras, Sweden.
    Socioeconomic characteristics and comorbidities of diverticular disease in Sweden 1997-20122017In: International Journal of Colorectal Disease, ISSN 0179-1958, E-ISSN 1432-1262, Vol. 32, no 11, p. 1591-1596Article in journal (Refereed)
    Abstract [en]

    Purpose: This study aimed to evaluate the association of socioeconomic status and comorbidities with uncomplicated and complicated diverticular disease (DD) in Sweden.

    Methods: We identified all individuals aged >= 30 years in Sweden diagnosed with DD between 1997 and 2012 using the Swedish National Population and Housing Census and the Hospital Discharge Register. Data were analyzed by multivariable logistic regression, with individual-level characteristics as covariates.

    Results: A total of 79,481 patients (median age 66 [range 3086] years) were hospitalized for DD, 15,878 (20%) of whom for complicated DD. Admissions for both uncomplicated and complicated DD were more common in women (p < 0.001). A low education level was identified as a risk factor for uncomplicated (unadjusted hazard ratio [HR] 1.79, 95% confidence interval [CI] 1.75-1.82; adjusted HR 1.22, 95% CI 1.19-1.24) and complicated DD(unadjusted HR 1.84, 95% CI 1.77-1.92; adjusted HR 1.26, 95% CI 1.21-1.32). Patients with the lowest income had a lower risk of hospitalization for uncomplicated (adjusted HR 0.94, 95% CI 0.91-0.96) and complicated DD (adjusted HR 0.87, 95% CI 0.83-0.92) than those with the highest income. The correlation coefficient between income and education was 0.25. Diabetes and cardiovascular disease were identified as protective factors against uncomplicated DD (adjusted HR 0.68, 95% CI 0.66-0.69 and HR 0.79, 95% CI 0.74-0.84, respectively).

    Conclusions: Patients with the lowest education level had an increased risk of hospitalization for DD. Further studies are needed to explore the association of diabetes and cardiovascular disease with uncomplicated DD.

  • 279.
    Hosseinali Khani, Maziar
    et al.
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Påhlman, Lars
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Colorectal Surgery.
    Smedh, Kennet
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland.
    Treatment strategies for patients with stage IV rectal cancer: a report from the Swedish Rectal Cancer Registry2012In: European Journal of Cancer, ISSN 0959-8049, E-ISSN 1879-0852, Vol. 48, no 11, p. 1616-1623Article in journal (Refereed)
    Abstract [en]

    Background: The optimal treatment strategy for patients with stage IV rectal cancer is unclear. The aim of the present study was to describe trends and compare the different treatment strategies for this group of patients at a national level and over time.

    Methods: Data from 2758 rectal cancer patients with (stage IV group) and 13 420 without metastases (stage I-III group) were available from the Swedish Rectal Cancer Registry between January 1995 and December 2006.

    Results: Patients with stage IV disease increased from 15 to 19 per cent between 1995 and 2006 (p<0.001) and the frequency of patients not operated increased from 13 to 26 per cent (p<0.001). Postoperative 30 day mortality after bowel resection was 2 per cent and after exploratory laparotomy 9 per cent. Median survival for stage IV patients operated with bowel resection was 16.3 months, an exploratory laparotomy 6.1 months, and for patients having no surgery 4.6 months. Patients aged 60-69 years increased their survival over time, irrespective of the treatment given. In the multivariate analysis, an increased risk of death was associated with: age > 80 years, operation at a local hospital, treatment in earlier time periods, not receiving preoperative radio- or chemotherapy, and not having a bowel resection.

    Conclusion: Survival for stage IV rectal cancer patients improved in the latest time period despite the great increase in non-operated patients. Patients aged > 80 years should be carefully assessed and staged before surgery. The survival advantage for stage IV rectal cancer patients who underwent primary tumour resection is probably due to selection bias.

  • 280.
    Humphries, Matthew P.
    et al.
    Univ Leeds, Leeds Inst Canc & Pathol, Leeds, W Yorkshire, England..
    Rajan, Sreekumar Sundara
    Univ Leeds, Leeds Inst Canc & Pathol, Leeds, W Yorkshire, England..
    Droop, Alastair
    Univ Leeds, Leeds Inst Canc & Pathol, Leeds, W Yorkshire, England.;Univ Leeds, MRC Med Bioinformat Ctr, Leeds, W Yorkshire, England..
    Suleman, Charlotte A. B.
    St James Univ Hosp, Dept Histopathol, Leeds, W Yorkshire, England..
    Carbone, Carmine
    Azienda Osped Univ Integrata, Ctr Comprehens Canc, Verona, Italy..
    Nilsson, Cecilia
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Clinical Research, County of Västmanland. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
    Honarpisheh, Hedieh
    Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA..
    Cserni, Gabor
    Bacs Kiskun Cty Teaching Hosp, Dept Pathol, Kecskemet, Hungary..
    Dent, Jo
    Calderdale Hosp, Halifax, England..
    Fulford, Laura
    Surrey & Sussex NHS Trust, Redhill, Surrey, England..
    Jordan, Lee B.
    Univ Dundee, NHS Tayside, Dundee, Scotland..
    Jones, J. Louise
    Barts Canc Inst, London, England..
    Kanthan, Rani
    Univ Saskatchewan, Dept Pathol & Lab Med, Saskatoon, SK, Canada..
    Litwiniuk, Maria
    Poznan Univ Med Sci, Greater Poland Canc Ctr, Poznan, Poland..
    Di Benedetto, Anna
    Regina Elena Inst Canc Res, Dept Pathol, Rome, Italy..
    Mottolese, Marcella
    Regina Elena Inst Canc Res, Dept Pathol, Rome, Italy..
    Provenzano, Elena
    Addenbrookes Hosp, Dept Histopathol, Cambridge, England..
    Shousha, Sami
    Imperial Coll Healthcare NHS Trust, Dept Histopathol, London, England.;Charing Cross Hosp, Imperial Coll, London, England..
    Stephens, Mark
    Univ Hosp North Staffordshire, Stoke On Trent, Staffs, England..
    Walker, Rosemary A.
    Univ Leicester, Canc Studies & Mol Med, Leicester, Leics, England..
    Kulka, Janina
    Semmelweis Univ, Dept Pathol 2, Budapest, Hungary..
    Ellis, Ian O.
    Nottingham City Hosp, Fac Med & Hlth Sci, Nottingham, England..
    Jeffery, Margaret
    Queen Alexandra Hosp, Pathol Ctr, Dept Histopathol, Portsmouth, Hants, England..
    Thygesen, Helene H.
    Univ Leeds, Leeds Inst Canc & Pathol, Leeds, W Yorkshire, England..
    Cappelletti, Vera
    Fdn IRCCS Ist Nazl Tumori, Dept Expt Oncol & Mol Med, Milan, Italy..
    Daidone, Maria G.
    Fdn IRCCS Ist Nazl Tumori, Dept Expt Oncol & Mol Med, Milan, Italy..
    Hedenfalk, Ingrid A.
    Lund Univ, Dept Oncol & Pathol, Clin Sci, Lund, Sweden.;Lund Univ, CREATE Hlth Strateg Ctr Translat Canc Res, Lund, Sweden..
    Fjällskog, Marie-Louise
    Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Endocrin Oncology.
    Melisi, Davide
    Azienda Osped Univ Integrata, Ctr Comprehens Canc, Verona, Italy.;Univ Verona, Dept Med, Digest Mol Clin Oncol Res Unit, Verona, Italy..
    Stead, Lucy F.
    Univ Leeds, Leeds Inst Canc & Pathol, Leeds, W Yorkshire, England..
    Shaaban, Abeer M.
    Queen Elizabeth Hosp Birmingham, Dept Cellular Pathol, Birmingham, W Midlands, England.;Univ Birmingham, Birmingham, W Midlands, England..
    Speirs, Valerie
    Univ Leeds, Leeds Inst Canc & Pathol, Leeds, W Yorkshire, England..
    A Case-Matched Gender Comparison Transcriptomic Screen Identifies eIF4E and eIF5 as Potential Prognostic Markers in Male Breast Cancer2017In: Clinical Cancer Research, ISSN 1078-0432, E-ISSN 1557-3265, Vol. 23, no 10, p. 2575-2583Article in journal (Refereed)
    Abstract [en]

    Purpose: Breast cancer affects both genders, but is understudied in men. Although still rare, male breast cancer (MBC) is being diagnosed more frequently. Treatments are wholly informed by clinical studies conducted in women, based on assumptions that underlying biology is similar.

    Experimental Design: A transcriptomic investigation of male and female breast cancer was performed, confirming transcriptomic data in silico. Biomarkers were immunohistochemically assessed in 697 MBCs (n = 477, training; n = 220, validation set) and quantified in pre- and posttreatment samples from an MBC patient receiving everolimus and PI3K/mTOR inhibitor.

    Results: Gender-specific gene expression patterns were identified. eIF transcripts were upregulated in MBC. eIF4E and eIF5 were negatively prognostic for overall survival alone (log-rank P = 0.013; HR = 1.77, 1.12-2.8 and P = 0.035; HR = 1.68, 1.03-2.74, respectively), or when coexpressed (P = 0.01; HR = 2.66, 1.26-5.63), confirmed in the validation set. This remained upon multivariate Cox regression analysis [ eIF4E P = 0.016; HR = 2.38 (1.18-4.8), eIF5 P = 0.022; HR = 2.55 (1.14-5.7); coexpression P = 0.001; HR = 7.04 (2.22-22.26)]. Marked reduction in eIF4E and eIF5 expression was seen post BEZ235/everolimus, with extended survival.

    Conclusions: Translational initiation pathway inhibition could be of clinical utility in MBC patients overexpressing eIF4E and eIF5. With mTOR inhibitors that target this pathway now in the clinic, these biomarkers may represent new targets for therapeutic intervention, although further independent validation is required.