高风险患者腹主动脉瘤手术与腔内治疗效果的比较

目的 比较高风险患者腹主动脉瘤(abdominal aortic aneurysm,AAA)手术治疗(opensurgical repair,OSR)与腔内治疗(endovascular aneurysm repair,EVAR)的效果,探讨高风险患者AAA治疗方式的选择.方法 利用(customized probability index,CPI)危险评分方法1]筛选出我院1998年至2008年高风险患者55例,比较OSR组(20例)与EVAR组(35例)围手术期及术后近期结果.结果 OSR组随访率100%,平均随访6年3个月.EVAR组随访率94%,平均随访5年10个月.(1)手术时间高风险患者EVAR组(3.1±0.6)h短于OSR组(4.9±0.9)h(P<0.05)];(2)EVAR组术中出血、ICU时间和住院时间均短于OSR组(P<0.01);(3)围手术期死亡率EVAR组(2.86%)明显低于OSR组(15.00%);(4)术后并发症发生率EVAR组(17%)明显低于OSR组(40%);(5)EVAR组术后并发症主要为内漏(8.57%);(6)OSR组并发症主要为心脏相关性疾病(25%).结论 EVAR对于高风险患者AAA的治疗可以更少的导致围手术期心血管事件的发生,降低围手术期的死亡率和并发症发生率.CPI可以相对准确评估血管手术围手术期死亡率和并发症的发生率,可用于指导围手术期的治疗策略.

The endovascular repair or open surgery for abdominal aortic aneurysm

Objective To compare the therapeutic effect of endovascular repair (EVAR) and open surgical repair(OSR) of abdominal aortic aneurysm in high-risk patients. Methods The clinical data of 55 patients from 1998 to 2008 with infrarenal abdominal aortic aneurysm who received surgical treatment were analyzed by using the customized probability index. The perioperative and short term advantages and disadvantages of OSR group (n=20) were compared with EVAR group (n=35). Results All patients in OSR group were followed up, 94% patients in EVAR group were followed up, the mean follow up time were 75 and 70 months respectively. (1) Compared to OSR group, the EVAR group had shorter operation time (3.1±0.6) h vs (4.9±0.9) h, P<0.05], (2) EVAR group had shorter ICU and hospital stay after operation and less blood loss (P<0.01), (3) Compared to OSR group, the EVAR group had lower mortality within 30 d(2.86% vs 15%), (4)the EVAR group had lower peri-operative complications(17% vs 40%), (5) The main complications of EVAR were endoleak (8.57%), (6) The main complications of OSR was cadiovascular incidence(25%). Conclusions Endovascular treatment, indicated for AAA in high-risk patients, can cut down the perioperative incidence of cadiovascular events, mortality and complications. CPI is useful to estimate the perioperative incidence of cadiovascular events, mortality and complications, and can be used to guide the therapeutic method.