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Published on: September 19, 2018
Screening for abdominal aortic aneurysms in a hypertensive patient population
G Simon1, D Nordgren, S Connelly
1Department of Medicine, Veterans Affairs Medical Center, Minneapolis, Minn., USA.
Background:
Abdominal aortic aneurysm (AAA) is an important cause of preventable death in the elderly.
Objective:
To search for an effective screening program for the detection of AAA.
Methods:
We consecutively and prospectively screened 240 male, predominantly white, patients, aged 60 to 75 years, by ultrasound for the presence of AAA in 2 phases: in screen 1, hypertension (diastolic blood pressure reading > 95 mm Hg) was the only selection criterion; in screen 2, we included hypertensive patients with a systolic blood pressure level higher than 175 mm Hg with or without antihypertensive therapy, transient ischemic attacks and/or stroke, and claudication.
Results:
The yield of AAAs in screens 1 and 2 was 3% and 11%, respectively (P < .02, (chi)2 analysis). No AAAs were found in patients with uncomplicated hypertension. Of the cardiovascular complications, only claudication was independently associated with the presence of AAA (relative risk, 5.8; confidence interval, 1.8-18.6; P = .004).
Conclusions:
Screening for AAA is recommended for elderly white patients with claudication. Uncomplicated hypertension by itself is not an indication for screening.
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