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应用静脉导管法对70例心律失常患者进行心腔内电生理检查,发现房室传导裂隙现象22例。其中男16例,女6例,年龄20～52岁。临床诊断冠心病4例,其中合并室上性心动过速(简称室上速)2例,左前分支阻滞2例;预激综合征3例,合并室上速1例;高血压病(Ⅱ期)2例,1例合并窦性心动过缓,1例合并频发性室性早搏;心肌炎后遗症合并频发性早搏2例;病态窦房结综合征1例;植物神经功能紊乱3例,均合并窦性心动过缓及房性早搏;原因不明频发性室性早搏7例。呈现的房室传导裂隙现象有6种类型。电生理特征见表1。笔者还观察了心率及药物对裂隙现象的影响。发现心率增快时,由于希浦系有效不应期(ERP)缩短,小于房室结的
Intravenous electrophysiological examination of 70 cases of arrhythmia patients using venous catheter method found that 22 cases of atrioventricular fissure. Including 16 males and 6 females, aged 20 to 52 years. There were 4 cases of coronary heart disease diagnosed clinically, including 2 cases with supraventricular tachycardia (SVS), 2 cases with left anterior branch block, 3 cases with WPW syndrome, 1 case with supraventricular tachycardia, 2 cases with hypertension 2 cases, 1 case complicated sinus bradycardia, 1 case complicated with frequent ventricular premature beats; myocarditis sequelae with frequent premature beats in 2 cases; sick sinus syndrome in 1 case; autonomic dysfunction in 3 cases, All combined sinus bradycardia and atrial premature beats; unexplained 7 cases of frequent ventricular premature beats. There are 6 types of AV fissure present. Electrophysiological characteristics in Table 1. The author also observed heart rate and drug effects on the fissure phenomenon. Found heart rate, due to the Department of Hippo effective refractory period (ERP) shortened, less than atrioventricular node