CAJ | 학술논문

目的：评价主动电极在右心室流出道间隔部起搏应用中的临床疗效和稳定性。方法110例有Ⅲ度房室传导阻滞的患者随机分为主动电极组60例和被动电极组50例，主动电极组采用主动固定电极行右心室流出道间隔部起搏，被动电极组采用被动固定电极行右心室心尖部起搏，比较两组植入前后心电图QRS波时限及电极植入即刻及随访过程中的起搏阈值、感知、阻抗。结果两组术后QRS波时限均较术前显著延长（P＜0．01），组间差异显著（P＜0．01）。主动电极组在术后即刻起搏阈值较被动电极组高，有统计学差异（ P＜0．05），两组在术后1个月、6个月、12个月的随访过程中测试起搏阈值、R波感知及阻抗均无统计学差异（ P＞0．05）。结论主动固定电极在右心室流出道间隔部的起搏应用可行而稳定。
목적：평개주동전겁재우심실류출도간격부기박응용중적림상료효화은정성。방법110례유Ⅲ도방실전도조체적환자수궤분위주동전겁조60례화피동전겁조50례，주동전겁조채용주동고정전겁행우심실류출도간격부기박，피동전겁조채용피동고정전겁행우심실심첨부기박，비교량조식입전후심전도QRS파시한급전겁식입즉각급수방과정중적기박역치、감지、조항。결과량조술후QRS파시한균교술전현저연장（P＜0．01），조간차이현저（P＜0．01）。주동전겁조재술후즉각기박역치교피동전겁조고，유통계학차이（ P＜0．05），량조재술후1개월、6개월、12개월적수방과정중측시기박역치、R파감지급조항균무통계학차이（ P＞0．05）。결론주동고정전겁재우심실류출도간격부적기박응용가행이은정。
Objectives To evaluate the clinical efficacy and stability of active electrode used in right ventricular septum pacing. Methods A total of 110 patients withⅢdegree atrioventricular block were randomly divided into 2 groups.60 patients in active e-lectrode group were performed with right ventricular septum pacing using fixed active electrode while 50 patients were with right ven-tricular apex pacing using fixed passive electrode.QRS wave time limit of ECG before and after electrode implantation and pacing threshold,R wave perception and impedance at the immediate time of electrode implantation and during follow-up.Results QRS wave time limit of 2 groups after electrode implantation prolonged more obviously than before electrode implantation (P<0.01) and passive electrode group prolonged more significantly than active electrode group (P<0.01).The immediate pacing threshold in ac-tive electrode group was higher than passive electrode group (P<0.05).There was no difference in acing threshold,R wave percep-tion and impedance during 1,6 and 12 months of follow-up between 2 groups (P>0.05).Conclusions Fixed active electrode is feasible and stable used in right ventricular septum pacing.