射频导管消融房室结改良术心电监测分析

Analysis of electrocardiac monitory data of radiofrequency catheter ablation of dual atrioventricular node

为探讨射频导管消融房室结改良术所致心律失常的发生规律,分析射频导管消融房室结改良术22例术中及术后Nh的心电监测资料,并与预激旁道消融术22例进行对比研究。结果表明,房室结改良术中及术后心律失常及心率改变的发生率均显著高于旁道消融术(这P<0.05);术中主要的心律失常是交接区心动过速(81.8％)及室上性期前收缩(45.5％),而术后主要是窦性心率增快。这些改变多于术后4h之内恢复正常。提示除应慎选适应证、谨慎操作之外,术中及术后严密的心电监测也是十分必要的。

In order to research occurrence of cardiac arrhythmia followed by radiofrequency catheter ablation of dual atrioventricular node, authors analyzed during and 24 hours after procedures electrocardiac monitory data oi 22 patients who had received radiofrequency catheter ablation of retrograde slow pathway of dual atrioventricular node pathway. And comparison was made with data of WPW accessory a-trioventricular pathways.Our results demonstrated both during and after procedure occurrence of cardiac arrhythmia and heart rate variation of DAVNP radiofrequency ablation to be significantly higher than those of WPW accessory atrioventricular pathway ablation .During proecedure main cardiac arrhythmia found its expression in node tachycardia beat(81.8% ), ventricular premature contraction (45.5% ) and after procedure in sinus rate variation. All abnormal got recovered in 4 hours postaperatively . Our results have suggested that procedure has its own risk and much attention should be paid to monitory of patients' ECG during and after operation as well as to selection of cases and to careful operation.