摘要
目的 研究体表 12导联心电图与显性预激房室旁路定位的相关关系。方法 本研究采用心外膜标测 (ECM)手术切断旁路 (AP)、心内膜标测电生理检查 (EPS)射频消融术 (RFCA)离断旁路方法 ,成功根治 12 3例显性预激病人 133条 AP,并对其体表 12导联心电图进行对比研究。结果 体表心电图 (SECG)的四个特征变化对旁路定位有重要价值。这四个特征是 (1) V1 导联 QRS综合波形态 ;(2 )肢体导联△波极性变化 ;(3)胸前导联R/ S波比值移行点变化 ;(4)肢体导联 ( )中 R/ S波比值变化。其结果显示 :左、右侧及间隔 AP定位敏感性、特异性和准确率均达 92 %以上 ,尤其是左侧游离壁 AP定位准确率可达 98%与 EPS相近。结论 术前准确定位 AP位置对 RFCA成功有重要意义。
Objective Clinical study of the body surface 12-leads electrocardiogram criteria for the localization of the accessory atrioventricular pathways.Methods In our study,123 patients with menifest accessor atrionentricular pathways(MAP) underwent epicardial mapping(ECM) during radiofrequency current ablation(RFCA) so as to successfully cure of all patients.Results Comparative analysis based on both results of electrophysiological study and surface electrocardiogram(SECG) showed that the following four characteristics.The four characteristics were QRS complex waves direction in V 1 lead,delta wave polary in limb leads(Ⅰ、Ⅱ、Ⅲ、aVF、aVL),the R/S radio in precardiol leads and the R/S radio in Ⅲ lead.The results also indicated that sensitivity, specificity and correct rate were more than 92 per cent in left-sided,right-sided and septal AP of MAP syndrome and in paritcular,the correct rate of the left free wall accessory pathways achieved about 98 per cent,its correct rate was close to that of EPS.Conclusion Therefore it was significant for correcting of AP location before RFCA.
出处
《临床心电学杂志》
2000年第1期29-31,共3页
Journal of Clinical Electrocardiology
关键词
显性预激
旁路定位
心电图
诊断标准
Menifest accessory atrioventricular pathways Localization of accessory pathways
