Why the study?
Does early surgery improve long-term survival in quality-adjusted life years compared to watchful waiting in patients with asymptomatic AAAs less than 5 cm in diameter?
Population
Patients with asymptomatic abdominal aortic aneurysms (AAAs) less than 5 cm in diameter
Comparison
Early surgery (repair small AAAs when diagnosed) vs Watchful waiting
Design
Other
Authors
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May support early repair at 4 cm in decision models; leaves open need for randomized confirmation before practice change.
Does early surgery improve long-term survival in quality-adjusted life years compared to watchful waiting in patients with asymptomatic AAAs less than 5 cm in diameter?
A Markov decision model suggests that early surgery may improve quality-adjusted survival for patients with 4-4.9 cm AAAs, whereas watchful waiting is preferred for AAAs <4 cm.
David A. Katz (1992) studied this question.
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