心脏传导阻滞是指心脏传导系统异常,导致电冲动传导延缓、间断或完全停止,包括窦房阻滞、房内阻滞、房室阻滞和室内阻滞等,临床上可以出现心悸、晕厥、Adams-Stokes综合征甚至猝死。尽管心脏传导阻滞常伴有基础性心脏病如冠心病、心肌病、心肌炎等或受药物影响,但遗传因素始终 Cardiac conduction block refers to the abnormality of the cardiac conduction system, resulting in delayed, intermittent or complete conduction of electrical impulses, including sinoatrial block, intra-atrial block, atrioventricular block and intra-atrial block, etc. Palpitations, syncope , Adams-Stokes syndrome and even sudden death. Although heart block is often accompanied by underlying heart disease such as coronary heart disease, cardiomyopathy, myocarditis and other drugs or by the impact, but genetic factors