目的探索经胸横切口暴露头静脉及使用导引钢丝、静脉鞘管引导放置起搏电极导线的成功率及临床意义。
A descriptive geometry method is presented to obtain the track of wire incision in processing the three dimensional cut.提出了确定嵌入式三维接口线切割轨迹的画法几何方法。
No perforation and dissection due to the advancement of the guard-wire or catheter, severe pulmonary thrombosis, infection of the incision or peri-operative death.无导丝引致的穿孔、夹层,无严重肺梗死,无切口感染及术中术后死亡。