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  • Title: Outcome after abdominal aortic aneurysm repair in Sweden 1994-2005.
    Author: Wanhainen A, Bylund N, Björck M.
    Journal: Br J Surg; 2008 May; 95(5):564-70. PubMed ID: 18300269.
    Abstract:
    BACKGROUND: The aim was to study the epidemiology of abdominal aortic aneurysm (AAA) repair in Sweden. METHODS: Primary AAA repairs registered in the Swedish Vascular Registry between 1994 and 2005 were studied. Mortality data were obtained from the national population registry, and age- and sex-specific populations for each calendar year from Statistics Sweden. RESULTS: Some 10,691 primary AAA repairs were identified. In the population aged 60 years or over the incidence of intact AAA repair increased from 27.0 per 100,000 in 1994-1999 to 28.8 per 100,000 in 2000-2005 (P = 0.006), while the incidence of surgery for ruptured AAA (rAAA) remained stable (13.8 versus 14.1 per 100,000; P = 0.595). Open repair with a bifurcated graft decreased, whereas endovascular repair (EVAR) increased to 35.0 per cent of intact AAA and 10.3 per cent of rAAA procedures in 2005. Patients who had EVAR were older than those undergoing open repair (74.1 versus 71.9 years; P < 0.001). The 30-day mortality rate decreased over time for intact and ruptured aneurysm operations (P = 0.001). Age, female sex and open repair (compared with EVAR) were independently associated with a higher 30-day mortality rate in a logistic regression model. CONCLUSION: The introduction of EVAR was associated with an increasing incidence of intact AAA repair, whereas the rate of rAAA was stable. Perioperative mortality rates decreased over time.
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