摘要
目的分析非心房颤动(简称房颤)患者肺静脉电位(PVP)的特点,并探讨其临床意义。方法选择需经房间隔穿刺行射频消融术的左侧旁道引起的房室折返性心动过速患者,普通射频消融术后,根据肺静脉逆行造影显示的肺静脉大小、位置,放置环状标测导管(Lasso肺静脉标测电极),依次记录左上肺静脉(LSPV)、左下肺静脉(LIPV)、右上肺静脉(RSPV)、右下肺静脉(RIPV)的双极电图,并与体表心电图、冠状静脉窦电图同步记录。结果共标测肺静脉49根,PVP表现为单一、规律的电活动,呈现PVP-A(心房远场电位)或A-PVP传导,但PVP落后于冠状静脉窦电极标测的心房波。结论非房颤患者PVP的存在也具有普遍性。
Objective To study the characteristics of pulmonary vein potential（PVP） in subjects without atrial fibrillation（AF）. Methods Patients undergoing transeptal radiofrequency catheter ablation（RFCA） for left atrioventricular reentrant tachycardia were selected to study. After successful RFCA procedure, Selective pulmonary vein （PV） venography through 8F-Swartz catheter allowed placement of an appropriate-size decapolar-performed circular catheter （Lasso） in the PVs, Bipolar electrogrames of PVs were recorded on a muhichannel polygraphy with surface ECG, coronary-vena sinus atrial electrogrames. Result Forty-nine PVs were examed, whose PVPs were mono-morphogeny,regular electric-activity,order of PVP and A （far-field atrial potential） was variable, and most PVPs were slower than atrial potential in coronary sinus. Condusion PVP can be recorded in every subjects without AF.
出处
《中国心脏起搏与心电生理杂志》
2007年第2期122-124,共3页
Chinese Journal of Cardiac Pacing and Electrophysiology
关键词
电生理学
心房颤动
肺静脉
Electrophysiology
Atrial fibrillation
Pulmonary vein
