小腹主动脉瘤的治疗现状与进展

Current status and progress in the treatment of small abdominal aortic aneurysms

直径3．0～5．4cm的腹主动脉瘤称为小腹主动脉瘤，一般无症状，目前尚无循证医学证据表明手术或腔内修复优于随访观察。小腹主动脉瘤采取CT或超声随访监测处理，直至瘤体直径增大到一定阈值（通常为5．5cm）才考虑手术修复。所以，这部分患者目前尚未纳入手术指征，但其也存在破裂风险。本文就目前小腹主动脉瘤的治疗现状及进展进行综述。

The abdominal aortic aneurysm with a diameter of 3.0-5.4 cm is called small abdominal aortic aneurysm. Generally asymptomatic, there is no evidence- based medical evidence that surgery or endovascular repair is better than follow-up observation. Small abdominal aortic aneurysms are managed by regular CT or ultrasound surveillance until they grow to a diameter threshold （commonly 5. 5 cm ） at which surgical intervention is considered. But these patients without surgical intervention remain risk of rupture. We briefly summarized the current situation and progress of treatment on sAAA.