多形性定性自搏心律临床较少见,同时伴发多形性室性早搏则更属少见,我们最近遇到2例,报告如下: 例1 女性患者,38岁。风湿性心瓣膜病,心表Ⅲ度,洋地黄中毒。图1为Ⅱ导联连续描记。无P波,代以f波,QRS波成对出现,其配对间期基本相等,但QRS波形态皆多变不定,连续测每对第一个QRS波之R-R间期均相等,说明属于同一心室起搏点,其形态多变只能考虑为除极径路发生多变 Polymorphic qualitative spontaneous cardiac rhythm is less common, accompanied by pleomorphic ventricular premature beats are even more rare, we recently encountered two cases, the report is as follows: 1 female patients, 38 years old. Rheumatic valvular disease, epicardium III, digitalis poisoning. Figure 1 for the lead II continuous trace. No P wave, on behalf of the f wave, QRS wave pairs, the pairing interval is basically the same, but the QRS wave patterns are variable indefinite continuous measurement of each pair of the first QRS wave RR interval are equal, indicating that belong to the same Ventricular pacemaker, its shape changeable can only be considered for the depolarization path change occurs