ABSTRACT
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.