Improved Long-Term Survival After Abdominal Aortic Aneurysm Repair

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Abstract
Background— Treatment of abdominal aortic aneurysm (AAA) has changed significantly over the past 2 decades. In this perspective, time trends in long-term survival were studied. Methods and Results— We identified 8663 primary intact and 4171 ruptured AAA repairs in the Swedish Vascular Registry from 1987 to 2005. Mortality was obtained from the national population registry. Crude survival was analyzed, including all mortality. To analyze the long-term outcome among those surviving the AAA repair, relative survival, which denotes the survival rate of patients compared with that of the general population adjusted for age, sex, and calendar year, was calculated, excluding 90-day mortality. In a comparison of AAA repairs from 1987 to 1999 and 2000 to 2005, age (71.4 versus 72.5 years; P P P Conclusions— Long-term survival improved over time after intact AAA repair despite a change in case mix toward older patients with more comorbidities. Long-term survival was stable after ruptured AAA repair.

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