AVR导联ST段抬高对阵发性室上性心动过速的诊断价值

The Value of ST Segment Elevation in aVR in ECG Performance Lead for Paroxysmal Supraventricular Tachycardia

目的探讨aVR导联ST段抬高对阵发性室上性心动过速的诊断价值。方法收集梅州市人民医院2008年2月至2010年12月成功实行射频消融术的82例阵发性室上性心动过速(PSVT)患者,其中房室结折返性心动过速患者(AVNRT)53例,房室折返性心动过速患者(AVRT)29例,分析患者阵发性室上性心动过速发作时的心电图中aVR导联ST段的振幅表现。结果阵发性室上性心动过速发作时,53例AVNRT患者有15例aVR导联ST段抬高,占28.3%,29例AVRT患者有22例aVR导联ST段抬高,占75.86%,左侧旁道20例,其中19例阵发性室上性心动过速发作时,发生aVR导联ST段抬高,占76%。结论 aVR导联ST段抬高有助于判断患者阵发性室上性心动过速的发生,尤其是左侧旁道在阵发性室上性心动过速发生过程中起到重要意义。

Objective To evaluate The value of ST segment elevation in aVR in ECG performance lead for paroxysmal supraventricular tachycardia（PSVT）.Methods From February 2008 to December 2010 in Meizhou People＇s Hospita,electrophysiological testing and radiofrequency catheter ablation in 82 patients of PSVT had been performed routinely,with atrioventricular node reentrant tachycardia（AVNRT）53 cases and atrioventricular reentrant tachycardia（AVRT）29 cases,analysis the different amplitude in different cases.Results 53 AVNRT cases,ST segment elevation in aVR lead were found only in 15（28.3%）,while of 29 AVRT cases,22（75.86%） were discovered,in the 29 AVRT cases,20 were induced by left accessory pathway.19 cases（76%）in 22 cases were found a ST segment elevation in aVR lead while PSVT onset.Conclusion It is valuable about ST segment elevation in aVR in ECG performance in paroxysmal supraventricular tachycardia,especially the left accessory pathway involved PSVT.