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Editor's Choice - Assessment of International Outcomes of Intact Abdominal Aortic Aneurysm Repair over 9 Years
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kärlkirurgi. Aarhus Univ Hosp, Dept Cardiothorac & Vasc Surg, Aarhus, Denmark..
Helsinki Univ Hosp, Dept Vasc Surg, Helsinki, Finland..
Univ Heart Ctr Hamburg Eppendorf, Dept Vasc Med, Hamburg, Germany..
Vise andre og tillknytning
2017 (engelsk)Inngår i: European Journal of Vascular and Endovascular Surgery, ISSN 1078-5884, E-ISSN 1532-2165, Vol. 54, nr 1, s. 13-20Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Background: Case mix and outcomes of complex surgical procedures vary over time and between regions. This study analyses peri-operative mortality after intact abdominal aortic aneurysm (AAA) repair in 11 countries over 9 years. Methods: Data on primary AAA repair from vascular surgery registries in 11 countries for the years 2005-2009 and 2010-2013 were analysed. Multivariate adjusted logistic regression analyses were carried out to adjust for variations in case mix. Results: A total of 83,253 patients were included. Over the two periods, the proportion of patients >= 80 years old increased (18.5% vs. 23.1%; p < .0001) as did the proportion of endovascular repair (EVAR) (44.3% vs. 60.6; p < .0001). In the latter period, 25.8% of AAAs were less than 5.5 cm. The mean annual volume of open repairs per centre decreased from 12.9 to 10.6 between the two periods (p < .0001), and it increased for EVAR from 10.0 to 17.1 (p < .0001). Overall, peri-operative mortality fell from 3.0% to 2.4% (p < .0001). Mortality for EVAR decreased from 1.5% to 1.1% (p < .0001), but the outcome worsened for open repair from 3.9% to 4.4% (p = .008). The peri-operative risk was greater for octogenarians (overall, 3.6% vs. 2.1%, p < .0001; open, 9.5% vs. 3.6%, p < .0001; EVAR, 1.8% vs. 0.7%, p < .0001), and women (overall, 3.8% vs. 2.2%, p < .0001; open, 6.0% vs. 4.0%, p < .0001; EVAR, 1.9% vs. 0.9%, p < .0001). Peri-operative mortality after repair of AAAs <5.5 cm was 4.4% with open repair and 1.0% with EVAR, p < .0001. Conclusions: In this large international cohort, total peri-operative mortality continues to fall for the treatment of intact AAAs. The number of EVAR procedures now exceeds open procedures. Mortality after EVAR has decreased, but mortality for open operations has increased. The peri-operative mortality for small AM treatment, particularly open surgical repair, is still considerable and should be weighed against the risk of rupture.

sted, utgiver, år, opplag, sider
2017. Vol. 54, nr 1, s. 13-20
Emneord [en]
Abdominal aortic aneurysm, Outcomes, Clinical practice, Vascular registries
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-330016DOI: 10.1016/j.ejvs.2017.03.003ISI: 000405051200006PubMedID: 28416191OAI: oai:DiVA.org:uu-330016DiVA, id: diva2:1148482
Tilgjengelig fra: 2017-10-11 Laget: 2017-10-11 Sist oppdatert: 2019-10-28bibliografisk kontrollert
Inngår i avhandling
1. On Surgical Treatment of Aortic Pathology
Åpne denne publikasjonen i ny fane eller vindu >>On Surgical Treatment of Aortic Pathology
2019 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

The use of endovascular aneurysm repair (EVAR) in the treatment of abdominal aortic aneurysms has advanced from a premature characterization as a “failed experiment” in early 2000 to the predominant modern method of treatment. Technology has accommodated initial shortcomings, but it has also led to expansions in the treatment of ruptured aneurysms and complex aortic pathologies. The overall aim of this thesis is to characterize the contemporary utilization of endovascular repair in the international setting and to evaluate its expanding use in complex aortic disease treatment.

Paper I is an analysis of outcomes after intact aneurysm treatment from registries of 12 countries. From 2005 to 2013, and with 83,253 patients included, it was shown that the use of EVAR has increased while, the perioperative mortality has decreased. This was counterbalanced by a worsening mortality for those patients treated with open aortic repair.

Paper II is an analysis of ruptured aneurysms from the above-mentioned international registries. EVAR is also increasing for these patients, although open repair is still the predominant treatment strategy in most centres. Perioperative mortality was superior for EVAR patients, despite increased age and comorbidities. An association between patient-volume and perioperative mortality could be shown for open repair, but the same could not be demonstrated for EVAR.

Paper III is an evaluation of the adaptation of a total endovascular approach for the treatment of complex abdominal aortic aneurysms from a single centre. The technical success and midterm mortality, as well as post-operative complications, including spinal ischemia, were similar to those reported from large and multi-centre analyses. Previous studies reveal disparate results for centres performing open complex aortic repair. The results here suggest that a total endovascular approach is feasible for dedicated centres contemplating this strategy.  

Paper IV is an analysis of multiple pre-, peri-, and post-operative variables documented from complex aneurysm procedures. A relationship between increased complexity and variables such as anaesthesia duration, bleeding, hospital stay, and radiation exposure was found. As patients and their comorbidities increase, a decision to embark on a complex procedure should be made with due diligence to these relationships.

Paper V is a technical analysis of patients following acute treatment for Type A aortic dissections. Many patients are unfit for open aortic arch repair. Based on current availability of endovascular aortic stentgrafts, it was shown that the majority of patients can be treated endovascularly, while anticipated device improvements should further increase the proportion of eligibility. 

sted, utgiver, år, opplag, sider
Uppsala: Acta Universitatis Upsaliensis, 2019. s. 61
Serie
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 1651-6206 ; 1613
Emneord
Abdominal aortic aneurysm, EVAR, F/BEVAR, aorta dissection.
HSV kategori
Identifikatorer
urn:nbn:se:uu:diva-395964 (URN)978-91-513-0806-7 (ISBN)
Disputas
2019-12-18, Rosénsalen, entrance 95/96, NBV, Akademiska sjukhuset, Uppsala, 13:00 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2019-11-26 Laget: 2019-10-28 Sist oppdatert: 2020-01-13

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