经食管与心内电生理检查对诊断室上性心动过速的比较分析

目的：比较阵发性室上性心动过速（PSVT）患者经食管和心内电生理检查的差异，以确定经食管电生理的定位诊断价值。方法：将142例经导管射频消融（RFCA）患者的术前食管电生理与术中心内电生理检查结果进行比较。结果：体表心电图V1导联P波-经食管心电图P波（PVI-PE）〉25ms、心电图R波（R）-PE〉70ms为正向型房室折返性心动过速（AVRT）；PVI-PE≈0、R-PE〉70ms为右间隔旁路；PVI-PE〉25ms、R-PE〉150ms，且R-PE〉PE-R为房内折返性心动过速（ART）；PVI-PE〈25ms、R-PE〈70ms为慢-快型房室结折返性心动过速（AVNRT）。结论：经食管电生理的PVI-PE和R-PE对PSVT的类型及旁路定位有诊断价值。

Transesophageal atrial pacing compared with intracardiac electrophysiologic analysis on diagnosis of supraventricular tachycardia

Objective:Comparing differences between transesophageal and the intracardia electrophysiologic study,to assure the clinical value of transesophageal pacing on diagnosis of various types of supraventricular tachycardia and different accessory pathway. Methods: Comparing the results of transesophageal atrial pacing(TEAP) and electrophysiological study(EPS) in 142 patients during radiofrequency ablation.Results:Atrioventricular reentrant tachycardia(AVRT)with anterograde,P_(V1)-P_E was more than 25ms,R-P_E was more than 75 ms,with the exception of right septal accessory pathway(RSAP) P_(V1)-P_E was more than 25ms,R-P_E more than 75 ms,with the exception of right septal accessory pathway(RSAP) P_(V1)-P_E was 0,R-P_E more than 75 ms,in patient with atrial reentrant tachycardia(ART)P_(V1)P_E more than 25 ms,R-P_E more than 150 ms and R-P_E more than PE-R.Atrioventricular junctional reentrant tachycardia(AVNRT)P_(V1)-P_E less than 25 ms.R-P_E less than 70 ms.Conclusion:Transesophagus P_(V1)-P_E and R-P_E hold great clinical value on diagnosis of various types of supraventricular tachycardia and different accessory pathway.