一般认为,心脏传导障碍可使体表心电图波形改变而影响诊断,如左束文传导阻滞可掩盖心肌梗塞和心室肥厚,分支阻滞可掩盖或酷似心肌梗塞。而心脏传导障碍引起心律诊断的混淆则较少见。本文报道一例极为罕见的心室电分离现象,其心电图表现貌似心房节律。患者男性,69岁,因冠心病伴心衰加剧而入院。过去有心肌梗塞史,4年前曾进行心导管检查,示冠状动脉 Generally believed that cardiac conduction disorders can make changes in body surface ECG waveform and affect the diagnosis, such as left beam block can cover myocardial infarction and ventricular hypertrophy, branch block can mask or exactly like myocardial infarction. Confusion in cardiac rhythm diagnosis is less common with cardiac conduction disorders. This article reports a very rare case of ventricular electrical separation, the performance of its ECG seems atrial rhythm. The patient, male, was 69 years old and admitted to hospital for coronary heart disease with worsening heart failure. Past history of myocardial infarction, cardiac catheterization was performed 4 years ago, showing the coronary arteries