Key result
Repeated ultrasound screening for abdominal aortic aneurysm after 4 years in veterans without initial AAA yielded a low incidence of new, mostly small AAAs (2.2%; 95% CI 1.6-2.8%).
Why the study?
Does repeated ultrasound screening after a 4-year interval detect clinically significant new abdominal aortic aneurysms in veterans aged 50-79 without AAA on initial screening?
Population
5,151 veterans aged 50 through 79 years without AAA on initial ultrasound
Design
Cohort
Follow-up
4 years
Authors
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Low yield of mostly small AAAs on 4-year rescreening cautions against routine use; leaves open optimal intervals in veterans.
Cohort (n=5,151)
Does repeated ultrasound screening after a 4-year interval detect clinically significant new abdominal aortic aneurysms in veterans aged 50-79 without AAA on initial screening?
A second ultrasound screening for AAA after 4 years yields mostly small aneurysms, suggesting that longer intervals (e.g., >8 years) may be more appropriate for rescreening.
Frank A. Lederle (2000) conducted a cohort in Abdominal aortic aneurysm (n=5,151). Repeated ultrasound screening was evaluated on New AAA at second screening (95% CI 1.6-2.8). Repeated ultrasound screening for abdominal aortic aneurysm after 4 years in veterans without initial AAA yielded a low incidence of new, mostly small AAAs (2.2%; 95% CI 1.6-2.8%).
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