ABSTRACT
Objective To summarize our experiences of endovascular treatment for abdominal aortic aneurysm (AAA) with common iliac artery aneurysm (CIAA) by using bell-bottom technique (BBT).Methods From February 2009 to June 2014,endovascular aortic repair (EVAR) was performed on 17patients with AAA with CIAA using BBT,including 16 patients with bilateral and 1 patient with unilateral CIAA.Among them,patients with common iliac artery (CIA) of less than 25 mm in diameter without involvement of the internal iliac artery and external iliac artery aneurvsm were treated with BBT.Results All procedures were successfully completed.There were 3 bilateral and 14 unilateral BBT.Type Ⅰa endoleak was noticed intraoperatively in 3 cases and balloon dilation were applied,the endoleak disappeared after dilation in 2 cases and in 1 case the diminished endoleak disappeared during the follow-up period.The median follow-up of the 17 cases was 28 months (ranging,4-68 months).During follow-up no AAA or CIAA rupture and no endoleak occurred,and no dilation of the CIAA was observed.None of them had BBT graft occlusion or buttock claudication.Conclusion AAA with CIAA can be successfully treated with EVAR and BBT,which can preserve internal iliac artery patency.