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室性心律失常包括各类室性早搏:孤立或偶发室性早搏亦常称简单室性早搏;频繁室性早搏(>6次/分或>10或20次/小时);复杂室性早搏(二联律、成对、多形、早周期型);以及室性心动过速(连续3次或3次以上室性早搏,频率>100次/分)。本文综述正常人、冠心病、心肌病、二尖瓣脱垂、Q-T 延长综合征和其他情况下出现室性心律失常的临床意义。
Ventricular arrhythmias include all types of premature ventricular contractions: isolated or sporadic ventricular premature beats are also commonly referred to as simple ventricular premature beats; frequent ventricular premature beats (> 6 beats / min or> 10 or 20 beats / hour); complex premature ventricular contractions Bipolar law, paired, polymorphous, early cycle type); and ventricular tachycardia (3 or more times of premature ventricular contractions, frequency> 100 beats / min). This article reviews the clinical significance of ventricular arrhythmias in normal subjects, coronary heart disease, cardiomyopathy, mitral valve prolapse, Q-T prolongation syndrome and other conditions.