摘要
目的:关于Symmetry主动脉吻合器通畅率的短期和中期随访研究结果存在争议,目前仍缺乏长期随访研究,目前为止最长的平均随访时间是19个月。本研究目的是:①评估该装置的长期通畅率;
Objective: Results of short-and midterm follow-up studies of the patency rate of the Symmetry aortic connector systems(St Jude Medical,Inc,Minneapolis,Minn) are controversial. Longterm follow-up studies are still lacking(so far,the longest mean follow-up period was 19 months). The aim of our study was(1) to evaluate the patency rate of this device over a longer time-period and(2) to analyze risk factors for graft occlusion. Methods: Between November 2000 and July 2003,76 Symmetry aortic connector systems we...
