Prospective Clinical Controlled Study On Endovascular Abdominal Aortic Aneurysm Repair Versus Conventional Open Surgical Repair Of Abdominal Aortic Aneurysm

Objective Prospective clinical controlled study on endovascular abdominal aortic aneurysm repair(EVAR) versus conventional surgical repair of abdominal aortic aneurysm . Methods There are 38 patients about abdominal aortic aneurysms (AAA) between2002and2007; among them, 15 patients were treated with EVAR, 23 patients with conventional open surgical repair (OSR). Data of the two groups were collected and compared previously with a follow up period ended in 2007.The date obtain the mean blood lost and blood transfusion,the mean observation period in ICU and time of operation and the accumulative survival rate. Results The mean age of EVAR The mean blood lost and blood transfusion was 50ml and 0ml in EVR group compared with 1000ml and 800ml each in OSR group ( P < 0 . 001). The mean observation period in ICU and time of operation were 8h and 146min in EVAR group compared with 36h and 210min in the matched OSR group ( P < 0 . 001) . And there was no immediate death in EVAR group but 1deaths in OSR group after operation. The accumulative survival rate of EVAR group was 100% compared to 91% of matched OSR group (P = 0.252). Conclusion EVAR has the advantages of mild trauma,less blood loss and quicker recovery after operation.