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房室传导的裂隙现象(Gap Phenomenon)是指在心动周期中某一时相(称为裂隙带)到达的激动不能通过传导组织下传,而早于和晚于这个时相到达的激动,都能通过传导组织。电生理研究表明,裂隙现象是一种生理现象,与传导系统中两个不同水平组织的应激性不一致有关,并非“超常现象”。近年来作者遇到4例,报告如下。1 资料与方法.全组4例,男性3例,女性1例,年龄27～53岁。临床诊断冠心病和病毒性心肌炎各1例,2例无器质性心脏病的临床证据。2例有心律失常病史。所有病例在检查前3天内停用心血管活性药物,
Gap Phenomenon refers to the fact that an activation arriving at a certain phase of the heart cycle (called a “fissure zone”) can not be transmitted through the conduction tissue and an activation that arrives earlier and later than this phase Through the conduction of tissue. Electrophysiological studies have shown that the phenomenon of fissures is a physiological phenomenon, which is not related to the stress inconsistency between two different levels of tissue in the conduction system, and is not an “extraordinary phenomenon.” In recent years, the author encountered 4 cases, the report is as follows. 1 Materials and Methods. The whole group of 4 patients, 3 males and 1 female, aged 27 to 53 years. Clinical diagnosis of coronary heart disease and viral myocarditis in 1 case, 2 cases of organic heart disease without clinical evidence. 2 cases had a history of arrhythmia. All cases were discontinued of cardiovascular active drugs within 3 days before the examination,