Amitani S, Sohara H, Kurose M, Miyahara K, Misumi K, Sakamoto H
Division of Cardiology, Shinkyo Hospital, Kagoshima, Japan.
Jpn Heart J. 1996 Jul;37(4):495-501. doi: 10.1536/ihj.37.495.
Three months after implantation of endocardial pacing leads in 10 mongrel dogs, the tensile forces needed to remove 5 tined type and 5 screw-in type leads were compared experimentally. Mean maximum tensile force was 291 +/- 174 g with the screw-in type and 1174 +/- 369 g with the tined type (p < 0.01). Histopathologically, no changes suggesting any myocardial damage due to lead extraction were recognized in cases where screw-in type leads were used. These results support the clinical feasibility of safe and easy manual retraction of infected pacing leads of the screw-in type.
在10只杂种犬植入心内膜起搏导线3个月后，对5根翼状电极导线和5根螺旋电极导线进行了拔除所需拉力的实验比较。螺旋电极导线的平均最大拉力为291±174克，翼状电极导线为1174±369克（p<0.01）。组织病理学检查发现，使用螺旋电极导线的病例未发现因导线拔除导致心肌损伤的任何变化。这些结果支持了安全、简便手动拔除螺旋电极导线感染起搏导线的临床可行性。
