Patients in the open repair group required larger volumes of intraoperative blood transfusion than those in EVAR (P , 0.001), and they had more of a trend of cardiac failure after surgery than those in the EVAR group. The operative mortality was similar in both groups. On follow-up, the all-cause mortality and the rates of ischemic legs within 5 years had no significant differences between the 2 procedures (P . 1-7 These trials showed that EVAR is superior to open surgery in terms of operative mortality in the short term, and there were no differences in mortality or aneurysm-related mortality in the long term. However, any possible longterm benefit from EVAR versus open surgical repair for abdominal aortic aneurysm (AAA) has not been proven, 2 and the data of long-term mortality rate after repair surgery are limited. It is necessary to study this issue to get a clear answer.