Any side branches covered by the stents was evaluated. The results shows side branch occlusion occurred in 9.09% in cypher DES group , 10.50% in taxus DES group and 9.31% in BMS group.

• 分别对各组分支开口及血流情况等的变化进行分析比较；可见支架术后分支血管的闭塞率在cypher药物支架组为9.；09%25；taxus药物支架组为10