Harjula A, Järvinen A, Mattila S, Härtel G
Pacing Clin Electrophysiol. 1985 Jul;8(4):607-10. doi: 10.1111/j.1540-8159.1985.tb05866.x.
This study compared multifilamental and monofilamental temporary pacing leads in a clinical series of 83 patients who underwent valve replacement or coronary artery bypass grafting. The leads were used in the bipolar mode and were implanted into the outer layers of the right ventricular myocardium. The force required for wire removal (newtons), and the arrhythmias which occurred during removal were monitored. During electrode removal, 48% of the patients had transient arrhythmias (46% with monofilamental and 51% with multifilamental leads). The most common was a single ventricular premature contraction. In one case, wire removal caused non-sustained ventricular tachycardia. All the arrhythmias subsided spontaneously. There was no statistical difference between results of the two leads. The force needed for removal was monitored directly by applying force via a graduated spring; they were equal in both groups (2.6 newtons). Both electrode types behaved similarly during wire removal, and the spiral tail of the monofilamental lead did not provoke arrhythmias.
本研究在83例行瓣膜置换术或冠状动脉旁路移植术的临床系列患者中比较了多股和单股临时起搏导线。导线采用双极模式，植入右心室心肌外层。监测拔除导线所需的力（牛顿）以及拔除过程中发生的心律失常。在拔除电极过程中，48%的患者出现短暂性心律失常（单股导线为46%，多股导线为51%）。最常见的是单发室性早搏。有1例患者，拔除导线导致非持续性室性心动过速。所有心律失常均自发缓解。两种导线的结果无统计学差异。通过经由一个刻度弹簧施加力直接监测拔除所需的力；两组相等（2.6牛顿）。两种电极类型在拔除导线过程中的表现相似，单股导线的螺旋尾部未诱发心律失常。
