经食道心房调搏诊断阵发性室上性心动过速的临床价值

摘要

Objective To discuss the clinical value of transesophageal atrial pacing (TEAP) to the diagnosis of paroxysmal supraventricular tachycardia (PSVT). Methods The patients (n=74) diagnosed as PAVT were given TEAP for inducing and stopping PAVT. The parameters of ECG of PSVT, including induced window, induced frequency and atrial-ventricular node refractory period, were recorded and analyzed. All the results compared with intracardiac electrophysiologic study (IEPS) . Results The parameters of induced window, induced frequency and atrial-ventricular node refractory period get from TEAP was correlated to those get from IEPS well (P<0.05). The coincidence rate of TEAP reached 83.8%(62/74) in PAVT diagnosis, and all induced PSVT were stopped by TEAP. Conclusion TEAP can effectively review the electrophysiological characteristics of PSVT with higher accuracy rate. It is worth of wide application in clinic.%目的探讨经食管心房调搏（TEAP）检查诊断阵发性室上性心动过速（PSVT）的临床价值。方法纳入临床诊断为PSVT患者74例，通过TEAP检查予以诱发以及终止PSVT，记录并分析PSVT心电图参数，包括诱发窗口、诱发频率、房室结不应期等，并与心腔内电生理（IEPS）检查结果进行比较。结果 TEAP检查的诱发窗口、诱发频率、房室结不应期与IEPS检查结果相关性良好（P＜0.05）， TEAP检查诊断PSVT的符合率达83.8%（62/74），诱发的PSVT均能通过TEAP予以终止。结论 TEAP检查可有效评估PSVT的电生理特性，准确率高，值得临床广泛应用。