Goode L B, Byrd C L, Wilkoff B L, Clarke J M, Fontaine J M, Fearnot N E, Smith H J, Shipko F J
Cook Pacemaker Corporation, Leechburg, Pennsylvania 15656.
Biomed Instrum Technol. 1991 Jan-Feb;25(1):50-3.
Transvenous removal of chronic pacing leads was attempted using a special locking stylet and dilator sheaths. In five initial cases, three of seven leads were infected; six of seven leads were removed. The stylet was inserted into the conductor lumen and locked into the tip to reinforce and control the lead, permitting retraction without stretching the conductor. Sheaths were advanced over the lead to detach and dilate fibrous encapsulation. In one case, force applied exceeded the locking mechanism's strength; no patient complication resulted. It is concluded that transvenous lead removal is facilitated by a locking stylet and dilation of fibrous tissue with sheaths.
尝试使用一种特殊的锁定探针和扩张鞘经静脉移除慢性起搏导线。在最初的5例病例中，7根导线中有3根发生感染；7根导线中有6根被移除。将探针插入导线的导体腔并锁定在尖端，以加固和控制导线，从而在不拉伸导体的情况下将其收回。将鞘管沿导线推进，以分离并扩张纤维包裹组织。在1例病例中，施加的力超过了锁定机制的强度，但未导致患者出现并发症。得出的结论是，锁定探针和用鞘管扩张纤维组织有助于经静脉移除导线。
