Key result
A 15-fold increase in elective aneurysm repair was associated with a 58% reduction in abdominal aortic rupture incidence and a decrease in mortality from 46% to 14%.
Why the study?
Does elective aneurysm repair reduce the incidence of and death from abdominal aortic rupture in an ageing population?
Observational (n=191)
No
Does elective aneurysm repair reduce the incidence of and death from abdominal aortic rupture in an ageing population?
Increasing the rate of elective abdominal aortic aneurysm repair significantly reduces the incidence of rupture and associated mortality in an ageing population.
Answers are grounded in this paper and cite their sources.
May support expanded elective AAA repair to curb ruptures in ageing populations; extends observational data but leaves causality and practice change open.
During the period January 1984-July 1988, 191 abdominal aortic aneurysms were encountered at Gosford District Hospital, NSW, a hospital that services an ageing population. These aneurysms were either repaired or found as the cause of death at post-mortem. During the study, the rate of elective repair rose from 0.25/month during the first 2 years to 3.67/month in the latter 2.5 years. The mortality for repair of non-ruptured aneurysms was 0.9% compared with 55% for ruptured aneurysms. The 15-fold increase in elective repair resulted in the 58% reduction in the incidence of abdominal aortic rupture from 1.87/month to 0.79/month. The mortality rate from known aneurysms fell from 46% to 14% in the final 2 years. Elective aneurysm repair reduces the incidence of and death from abdominal aortic rupture in an ageing population.
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IVERS et al. (1990) conducted an observational in Abdominal aortic aneurysms (n=191). Elective aneurysm repair vs. Lower rate of elective repair (historical comparison) was evaluated on Incidence of abdominal aortic rupture (events per month) (58% reduction). A 15-fold increase in elective aneurysm repair was associated with a 58% reduction in abdominal aortic rupture incidence and a decrease in mortality from 46% to 14%.
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