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室性过早搏动的病原学室性过早搏动(Ventricular premanlre depol-arization—VPD)可见于正常人和心脏病的患者。重复性或成对的VPD以及非持续性室性心动过速(VT)多伴有心脏病,常见于冠心病、心肌病、瓣膜性心脏病;二尖瓣脱垂病人也十分常见,但引起猝死者少见;左心功能较差的病人多出现重复性VPD;利尿或其他失钾原因引起的低血钾致VPD有重要临床意义,发生率约33%,多为二联律、多源性VPD和VT。
Ventricular premature ventricular premature ventricular premature ventricular premature ventricular premature beats (Ventricular premanlre depol-arization-VPD) can be found in normal and heart disease patients. Repeated or paired VPD and non-sustained ventricular tachycardia (VT) often accompanied by heart disease, common in coronary heart disease, cardiomyopathy, valvular heart disease; mitral valve prolapse patients are also very common, but cause Sudden death are rare; patients with poor left ventricular function appear repeated VPD; diuretic or other causes of hypokalemia due to potassium deficiency caused by VPD has an important clinical significance, the incidence of about 33%, mostly bigeminy, multi-source VPD and VT.