房室旁路射频消融后心脏复极改变

The change of cardiac repolarization after radiofrequecy catheter ablation with atrioventricular accessory pathway

目的 :旨在评价房室旁路射频消融后心脏的复极改变情况及其特征。方法 :回顾性分析 132例房室旁路射频消融术后体表心电图 T波改变情况。结果 :80例隐匿性旁路在射频消融术后无 1例出现心脏复极改变 ,5 2例显性旁路中有 2 0例 (占 39% )术后出现明显 T波变化 ,其中完全性旁路 (QRS≥ 0 .14s)占 19例 ,而不完全性旁路 (QRS<0 .14s)仅占 1例。室间隔部的旁路更易出现术后复极异常。结论 :显性房室旁路消融术后可以出现酷似心肌缺血的

AIM:To estimate the change and feature of cardiac repolarization with atrioventricular accessory pathway by radiofrequency catheter ablation (RFCA). METHODS:132 patients with A V accessory pathway underwent RFCA,and observed T wave change using 12 lead electrocardiogram. RESULTS:Among the 80 patients with conceal accessory pathway,no one had episodes of T wave change by RFCA. However 20(39%) patients appeared obvious T wave change among the 52 patients with non conceal assessory pathway after RFCA,including the 19 patients they passed through cmplete accessory pathway (QRS duration≥140 ms) and only one patient is incomplete accessory pathway (QRS duration <140 ms). The T wave change was more common in the patients with the ventricular septal accessory pathway after RFCA. CONCLUSION:After RFCA,Wolff Parkinson White syndrome may occur T wave change that mimic ischemia.