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(肾下)腹主动脉瘤(AAA)占主动脉瘤的90%,治疗唯赖手术。急诊手术预后恶劣,应及早发现,在未出现并发症前、年龄不太大时早期手术。临床和解剖研究,AAA患病率2～4.4%,70岁的老人最多见,男性占70～90%。近40年来,胸主动脉瘤患病率减少,而AAA患病率却在上升。同期内冠心病和脑血管病死亡率在下降,而AAA的死亡率在升高。究其原因有两端:一是参与AAA的发生除动脉粥样硬化斑块外,另有一些病原因素;二是对其普查和预防性治疗不够。 AAA的发现除临床上可注意腹部有跳动的包块、脐周可存在收缩期杂音外,腹部平片,CT、核磁共振、动脉造影、静脉尿路造影等术的选用有助于诊
(Subrenal) abdominal aortic aneurysm (AAA) accounted for 90% of the aneurysm, the treatment of Wei Lai surgery. Emergency surgery prognosis is poor, should be found as soon as possible, in the absence of complications before age is not too early when the surgery. Clinical and anatomical studies, AAA prevalence of 2 to 4.4%, 70-year-olds the most common, 70-90% of men. In the past 40 years, the prevalence of thoracic aortic aneurysms has decreased while the prevalence of AAA has risen. Coronary heart disease and cerebrovascular disease mortality are declining over the same period, while AAA mortality is on the rise. There are two reasons: First, the occurrence of AAA in addition to atherosclerotic plaque, and some other pathogenic factors; the second is its census and preventive treatment is not enough. AAA found that in addition to the clinical can be noted abdomen beating mass, umbilical there may be systolic murmur, abdominal plain film, CT, MRI, arteriography, intravenous urography and other surgery will help the diagnosis