射频导管消融房室结改良术心电监测分析

为探讨射频导管消心室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２４ｈ的心电监测资料，并与预激旁道消融术２２例进行对比研究。

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

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.