经食管心房起搏终止房室结内折返性心动过速方法探讨  

Discussion on Transesophageal Atrial Pacemaking Terminating A - V Nodal Reentry Tachycardia

作　　者：王桂芳[1] 孙志坚[1] 呼日乐巴特尔 

机构地区：[1]内蒙古民族大学 附属医院,内蒙古通辽028000 [2]内蒙古民族大学 临床医学院,内蒙古通辽028000

出　　处：《内蒙古民族大学学报（自然科学版）》2005年第6期689-690,共2页Journal of Inner Mongolia Minzu University：Natural Sciences

摘　　要：目的:为探讨经食管心房起搏终止房室结双径路所致的折返性心动过速．方法:共47例,采用超速抑制、亚速抑制．比较超速抑制与亚速抑制二者对心动过速的终止效果．结果:亚速抑制19例,成功11例(57． 9％),8例未成功改用超速抑制．超速抑制36例,成功34例(94％),2例超速抑制、亚速抑制均无效,应用猝发脉冲后终止．结论:猝发脉冲终止室上性心动过速效果已经肯定．超速抑制终止效果明显高于亚速抑制(P< 0．05),而该种心动过速比较容易用起搏终止,缺点为不能预防复发．Objective：To discuss the effect of transesophageal atrial pacemaking terminating reciprocal tachycardia evoked by dual A - V nodal pathways. Methods： 47 cases of A - V nodal reentry tachycardia were treated with overdrive suppression and underdrive suppression. The terminative effects of overdrive and underdrive suppression were compared. Results： 19 cases were treated with underdrive suppression： 11 cases （57.9 % ） were brought back to normality, 8 cases failed and then were treated with overdrive suppression. 36 cases were treated with overdrive suppression ： 34 cases succeeded,2 cases made no response to overdrive or underdrive suppression; in the end 2 cases were treated with sudden pulse then returned to normal. Conclusion： The effect of sudden pulse terminating supraventricular tachycardia（SVT） is certain. The difference of curative effects be tween overdrive and underdrive suppression is significant（ P 〈 0.05）. SVT is easily terminated by atrial pacemaking but probably recurs.

关 键 词：经食管心房起搏 房室结双径路 房室结内折返性心动过速 

分 类 号：R541.72[医药卫生—心血管疾病]