在异位早搏、心动过速或并行心律之后,窦性P波形态变异是一种少见的心电图改变。Chung氏首先将这种变异的窦性P波称为“心房内差异性传导”(Aberrant atrial conduction AAC),并报道其发生率仅为0.1％。鉴于国内这种心电图资料报道很少,本文将遇到的32例报告如下。临床与心电图资料 32例中男19例,女13例。年龄21～84岁,平均61.8岁。60岁以上者23例,35岁以下3例。临床诊断:冠心病14例,其中合并肺心病者2例。肺心病7例、风心病5例、高血压合并脑血栓2例、肝癌及喉癌各1例、慢 After ectopic premature beats, tachycardia or concurrent heart rhythm, sinus P wave morphological variability is a rare ECG change. Chung first called this variant of sinus P wave “Aberrant atrial conduction AAC,” and reported that its incidence was only 0.1%. In view of the domestic report of this ECG is seldom, this article will encounter 32 cases reported as follows. 32 cases of clinical and ECG data in 19 males and 13 females. Aged 21 to 84 years old, average 61.8 years old. 23 cases over 60 years old, 3 cases under 35 years old. Clinical diagnosis: Coronary heart disease in 14 cases, of which 2 cases of pulmonary heart disease. Pulmonary heart disease in 7 cases, rheumatic heart disease in 5 cases, hypertension with cerebral thrombosis in 2 cases, liver cancer and laryngeal cancer in 1 case, slow