心房颤动常伴发心室内差异性传导,有时可以连续发生,类似室性心动过速;其发生机理有些学者主张用束支传导的“蝉联现象”(Linking phenomenon)来解释。现报告1例心房颤动伴心室内差异性传导的蝉联现象。临床资料与心电图分析患者男,53岁,住院号25124。临床诊断为风湿性心脏病,二尖瓣狭窄及关闭不全、心脏扩大、心房颤动、心力衰竭Ⅲ°乎时每日口服地高辛0.25～0.375 Atrial fibrillation often accompanied by ventricular differential conduction, and sometimes can occur continuously, similar to ventricular tachycardia; its mechanism of some scholars advocate the use of bundle branch conduction phenomenon "(Linking phenomenon) to explain. Now report a case of atrial fibrillation with ventricular differential conduction of reelection. Clinical data and ECG analysis Patient male, 53 years old, hospital number 25124. Clinical diagnosis of rheumatic heart disease, mitral stenosis and insufficiency, cardiac enlargement, atrial fibrillation, heart failure Ⅲ ° orally daily oral digoxin 0.25 ~ 0.375