Staniforth Andrew D, Schilling Richard J
St Bartholomew's Hospital, London, UK.
Indian Pacing Electrophysiol J. 2002 Oct 1;2(4):97-103.
This study examined the utility of a novel technique for reuse of thrombosed veins when extracting permanent pacemaker leads via a femoral vein approach.
Although lead extraction permanent pacemaker using a femoral approach has advantages over the subclavian approach, it cannot be used to provide access for a new lead using currently employed techniques. This is important because up to 23% of patients have occluded veins after permanent pacemaker implantation.
The pacemaker lead to be extracted was released from the generator and retaining sutures at the implantation site. The lead was then grabbed from below using a needle-eye-snare or basket. The lead was then cut short and a drag through technique performed where a guide wire was pushed into the gap between the insulation and the coil. This guide wire was then drawn into the right atrium as the lead was pulled down from below. This guide wire was then used to introduce a sheath through which a replacement lead could be inserted.
A total of 34 consecutive patients (21 male, aged 63+/-14 years, mean+/-SD) had 57 (1.7/patient) leads extracted. Fourteen patients required implantation of a new system and were suitable for immediate lead replacement using the drag through technique. All leads were successfully extracted, with 5 partial successes (9.1% of leads). The drag-through technique was successful in all, including 4 with subclavian vein occlusion. Procedure and fluoroscopy times, including the time required for implantation of a new system, were 143+/-65 mins and 31+/-23 mins respectively. There were no complications and hospital stay was 1.6+/-1.2 days for patients undergoing the drag-through procedure.
The drag-through technique can be successfully used to provide access in order to replace pacemaker leads removed using a femoral approach.
本研究探讨了一种新技术在经股静脉途径拔除永久性起搏器导线时对已形成血栓的静脉进行再利用的效用。
尽管采用股静脉途径拔除永久性起搏器导线比锁骨下途径有优势,但使用目前的技术无法为植入新导线提供通路。这一点很重要,因为高达23%的患者在永久性起搏器植入后静脉会闭塞。
将要拔除的起搏器导线从发生器及植入部位的固定缝线处松解。然后用针眼圈套器或网篮从下方抓取导线。接着将导线剪短,并进行拖入技术操作,即将导丝推进绝缘层与线圈之间的间隙。当导线从下方被拉下时,将该导丝拉入右心房。然后用这根导丝引入一个鞘管,通过该鞘管可插入替换导线。
连续34例患者(21例男性,年龄63±14岁,均值±标准差)共拔除了57根导线(平均每位患者1.7根)。14例患者需要植入新系统,且适合使用拖入技术立即更换导线。所有导线均成功拔除,其中5例部分成功(占导线总数的9.1%)。拖入技术在所有患者中均成功,包括4例锁骨下静脉闭塞患者。手术及透视时间,包括植入新系统所需时间,分别为143±65分钟和31±23分钟。无并发症发生,接受拖入手术的患者住院时间为1.6±1.2天。
拖入技术可成功用于提供通路,以便更换经股静脉途径拔除的起搏器导线。