摘要
目的对房室结折返性心动过速(AVNRT)患者房室结慢径消融术前、后冠状静脉窦(CS)电生理的改变进行探讨。方法 72例经心内电生理检查确诊为房室结折返性心动过速患者,在进行房室结慢径消融术前,测量其CS电生理值;手术后再测量一次其值,比较分析结果。结果房室结慢径消融术前、后测冠状静脉窦不同部位有效不应期(ERP)的值以及其有效不应期的离散度,前后差异有统计学意义(P<0.05)。而应用程序刺激S1S1 500、400、350、300、280 ms分别起搏CS近端(CSp)及CS远端(CSd),分别测量CSd^CSp房室结慢径消融术前、后CSp^CSd的A波传导时间,前后差异无统计学意义(P>0.05)。结论房室结折返性心动过速患者房室结慢径消融术后的CSp、CS中端(CSm)、CSd的ERP均较术前延长,CS的ERP离散度较术前减小,但CS的A波传导时间改变不明显,这可能是由于房室结慢径消融术使迷走神经发生了改变。
Objective To investigate change of coronary sinus （CS） electrophysiology in atrial ventrieular node reentrant tachycardia （AVNRT） patients before and after atrioventricular node slow pathway ablation. Methods There were 72 diagnosed AVNRT patients by intracardiac electrophysiological examination. Their CS electrophysiology was detected before atrioventricular node slow pathway ablation, and the detection was made after operation as well. Outcomes were analyzed. Results There were statistically significant differences of value and dispersion of effective refractory period （ERP） before and after atrioventricular node slow pathway ablation （P〈0.05）. Program stimulation was applied for S1S1 500, 400, 350, 300, 280 ms in pace-making for CS proximal- end （CSp） and CS distal-end （CSd）. The difference of A wave conduction time in CSp-CSd had no statistical significance before and after atrioventricular node slow pathway ablation （P〉0.05）. Conclusion AVNRT patients have prolonged ERP of CSp, CS middle-end （CSm）, and CSd after atrioventricular node slow pathway ablation, comparing with those before operation. After operation, CS has reduced dispersion of ERP and unchanged A wave conduction time in CS. That may be caused by changes of vagus induced by atrioventricular node slow pathway ablation.
出处
《中国现代药物应用》
2015年第20期1-2,共2页
Chinese Journal of Modern Drug Application
关键词
房室结慢径消融术
冠状静脉瓣
电生理
Atrioventricular node slow pathway ablation
Coronary vein valve
Electrophysiology
