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abdominal aortic aneurysm |
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abdominal aortic aneurysm (AAA), abnormal dilatation of the abdominal aorta, usually in an area of severe atherosclerosis. abdominal aortic aneurysm A focal aortic dilation of ≥ 50% ↑ in diameter, accompanied by distension and weakened aortic wall Epidemiology Incidence is rising 12/105–1951; 36/105–1980; ♂:♀
ratio 2:1; results in 15,000 deaths/yr–US 1988, population ± 230 x 106 Clinical Sudden, severe abdominal pain radiating to back Diagnosis 100% accuracy with Ultrasonography–Cons Difficult in obese subjects, or with excess bowel
gas, periaortic disease, technique does not document proximal or distal ends of aneurysm for surgery Treatment ≥ 5 cm in diameter AAAs should be repaired; therapy of smaller AAAs is controversial Contraindications to elective reconstruction MI in
last 6 months, intractable angina or CHF, severe pulmonary insufficiency with dyspnea at rest, severe renal insufficiency, life expectancy of ≤ 2 yrs Prognosis Treatment mortality is ± 6%; 25--40% of untreated cases rupture in 5 yrs, with
a 90% mortality if ≥ 5 cm How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| ? Mentioned in | ? References in periodicals archive | ||
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| Screening for abdominal aortic aneurysms, BMJ,
330, 7494, pp. A vascular screening package, which includes the stroke/carotid
artery, abdominal aortic aneurysm and hardening of the arteries, is
$109. Chances of surviving common high-risk elective procedures like
coronary angioplasty, coronary artery bypass graft, carotid
endarterectomy, abdominal aortic aneurysm repair and esophagectomy
improve enormously when the operation takes place at a hospital where
such complex surgeries are performed regularly and often. |
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