食管心房调搏诊断室上性心动过速的临床研究

为探讨食管心房调搏揭示室上性心动过速发生机制的价值和局限性，回顾性分析成功射频导管消融的１３８例隐匿性单房室旁道参与的顺向型房室折返性心动过速和１００例单一类型房室结折返性心动过速的食管心房调搏结果。结果显示：前１３８例中，３例前间隔旁道引起者食管心房调搏均诊断为房室结折返性心动过速余为左右侧其它部位的旁道，诊断正确。后１００例中，５例为慢－慢型，２例为快－慢型，食管心房调搏均诊断为房室折返性心动

Clinical study of transesophageal atrial pacing in diagnosis of supraventricular tachycardia

To investigate role of transesophageal atrial pacing(TEAP) in diagnosis of supraventricular tachycardia,results of TEAP were analysed in 138 patients with orthodormic atrioventricular reentrant tachycardia(O _ AVRT) mediated by concealed single atrioventricular accessory pathways(AP) and 100 patients with single atrioventricular nodal reentrant tachycardia(AVNRT).Results showed that among 138 cases of 0 _ AVRT and 3 cases of 0 _ AVRT mediated by anteroseptal AP were correctly diagnosed as AVNRT during TEAP,and correct diagnosis were made for other cases of AVRT.Among 100 patients with AVNRT,5 cases had slow _ slow form,2 fast _ fast AVNRT,and 7 cases were AVRT during TEAP.Diagnosis of 93 cases of slow _ fast AVNRT were identical with TEAP.Results suggest:TEAP is best noninvasive method in diagnosis of CAP mediated O _ AVRT and single AVNRT,but anteroseptal AP mediated AVRT was often misdiagnosed as AVNRT,and slow _ slow and fast _ slow AVNRT often as AVRT.