摘要
目的探讨损伤电流（COI）与主动固定导线稳定性关系，为I临床判断主动固定导线植入室间隔的可靠性和安全性提供依据。方法入选按常规方法将主动固定导线植入右心室间隔患者193例，在导线螺旋旋出即刻测试COI，同时进行起搏参数测试。结果按测得COI值分别为〈5mV、5～10mV、〉10mV3组，COI〈5mV组平均（3．85±1．01）mV，COI5～10mV组平均（7．74±1．63）mV，COI〉10mV组平均（10．63±0．55）mV。COI〈5mV组阈值为（0．83±0．16）V，高于COI〉10mV组阈值（O．69±0．15）V（P〈0．05），其余组间差异无统计学意义。COI〈5mV组发生心室导线脱位2例，COI表现为“顶天立地”的发生心室导线穿孔1例。并发症的发生率为1．55％。结论在室间隔起搏主动固定导线植入术中应测试COI，测得COI应至少在5mV以上，但COI过大将增加导线穿孔的风险。
Objective To determine whether current of injury（CO1） magnitude is related to active fixa- tion lead stability and safety. Methods One hundred ninety-three patients, undergoing active fixation lead im- plantation in our department,were enrolled. Current of injury and pacing parameters were recorded, when the spi- ral electrode spin out. Results Patients were divided into COI〈5 mV group,COI 5 - 10 mV group and COI〉 10 mV group. The magnitude of COI〈5 mV group was （3.85±1.01） mV,COI 5 - 10 mV group was （7.74± 1.63） mV,and COI〉10 mV group was （10.63±0.55） mV. The threshold of COI〈5 mV group was （0.83± 0. 16） V,which was higher than the threshold of COI〉10 mV group [ （0. 69±0. 15） V,P〈 0. 05]. Two ventricu- lar lead dislodged acutely,and belonged to COI〈5 mV group. One ventricular lead perforated,whose COI magni- tude was too high to be measured, requiring repositioning. Complication rate was 1.55%. Conclusion COI should be measured on active fixation lead implantation, and it at least Should be more than 5 mV. Too high COI magnitude may indicate perforation risk.
出处
《中华心律失常学杂志》
2012年第2期131-133,共3页
Chinese Journal of Cardiac Arrhythmias
基金
基金项目：浙江省重大科技专项课题（2009C03013-1）
关键词
损伤电流
主动固定导线
室间隔起搏
Current of injury
Active fixation lead
Ventricular septal pacing
