摘要
目的:通过运用食道心房调搏检查,对疑有阵发性室上性心动过速发作的70例患者进行复制。方法:经行S1、S2或S1、S2、S3程扫刺激后,复制出室上速62例人次,复制率8857%,再行食道心房标测。结果:根据折返部位分类,其中房室结折返性心动过速慢-快型占549%,房室折返性心动过速正传型占419%,窦房结折返性心动过速占16%,心房内折返性心动过速占16%。结论:通过食道心房调搏、标测检查能明确室上速的原因。
Objective:To use transesophageal atrial pacing(TAP) to duplicate superventricular tachycardia(SVT) in 70 cases with suspected paroxysmal superventricular tachycardia(PSVT).Methods:Duplicating and labeling SVT in 62 cases through program ectopic stimulation(S1,S2 or S1,S2,S3). Results:The success rate of duplication reaches 8857%.Of the studied cases, the slow-fast pathway of atrial ventricular node reentrant tachycardia(AVNRT) accounts for 5490%, antegrade atrial ventricular reentrant tachycardia(AVRT) 4190%,sinus node reentrant tachycardia (SNRT) 16% and intra-atrial reentrant tachycardia (IART) 16% according to the reentrant pathways. Conclusion:TAP with labeling test is helpful to find the causes of PSVT.
关键词
食道心房调搏
心律失常
程扫刺激
心房标测
折返
Transesophageal atrial pacing
SVT
Program ectopic stimulation
Atrial labeling
Reentrance