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原发性扩张型心肌病患者心脏性猝死的发生率约为20～45％。作者在60例未经抗心律失常治疗的原发性扩张型心肌病患者作了24小时动态心电图记录,以测定其室性心律失常的发生率、发作时的频率及特点。并估计临床表现或血流动力学资料能否预测复杂的室性心律失常。方法:60例均符合以下标准(1)有左或右心,或两者衰竭的症状或体征;(2)X线示心脏扩大,即心胸比率>0.50;(3)左心室扩大,喷血分数减低(≤0.55);(4)无冠心病(冠状动脉造影证实);(5)除有轻至中度二尖瓣关闭不全外,无瓣膜病变;(6)血清钾浓度正常(3.5～5.0毫克当量/升);(7)二周来
The incidence of sudden cardiac death in patients with primary dilated cardiomyopathy is about 20-45%. The authors recorded 24-hour Holter recordings of 60 patients with idiopathic dilated cardiomyopathy not treated with anti-arrhythmia to determine the incidence of ventricular arrhythmias and the frequency and characteristics of the episode. And to assess whether clinical manifestations or hemodynamic data predict complex ventricular arrhythmias. Methods: All 60 patients met the following criteria: (1) Symptoms or signs of left or right heart failure, or both; (2) X-ray showed enlargement of heart, ie, cardiothoracic ratio> 0.50; (3) (4) no coronary heart disease (coronary angiography confirmed); (5) except for mild to moderate mitral regurgitation, valvular disease; (6) normal serum potassium concentration (3.5 ~ 5.0 meq / l); (7) two weeks