摘要
２５例左侧房室旁路引起的房室折返性心动过速病人在单极标测指导下行射频消蚀治疗，２３例成功阻断房室旁路（ＡＰ）。分析有效消蚀靶点的单极心内膜标测特点为：（１）单极标测可准确定位ＡＰ。显性ＡＰ者在窦性心律时单极标测图上显示“ＰＱＳ”复合波是前传ＡＰ定位点的可靠指标；隐匿ＡＰ心室起搏或诱发顺向型房室折返性心动过速时逆传Ｐ波最早激动是逆传ＡＰ定位点指标。（２）消蚀点单极图形类同标测点单极图形是有效靶点的可靠依据。（３）消蚀单极图Ｓ－Ｔ段抬高可能预示放电发生阻抗升高。
Abstract Twenty five patients with AV reentrant tachycardia undement unipolar mapping of accessory pathways (APs) in coronary sinus and treated with radiofrequency current ablation (RFCA). The APs were localized in left posterior (4), left lateral (16) and left anterior (5) free wall. The RFCA was performed under mitral ring near to the location of AP in the guidance of coronary sinus mapping. 23 of them were treated successfully by abolishing their APs. It was concluded that unipolar mapping was very useful in RFCA of AP and the ST elevation of unipolar electrogram of ablation site might be a sign predicting the increase of impedance.
出处
《中华心血管病杂志》
CAS
CSCD
北大核心
1994年第2期110-113,共4页
Chinese Journal of Cardiology
基金
国家自然科学基金
