肥厚性心肌病患者死亡常很突然。患者40岁之前症状较轻,用β肾上腺素能阻滞剂治疗有一定反应,通常当血液动力学情况恶化时才发病,发生房颤和心衰。房颤时,静脉压显著升高而心排血量减低,可能发生猝死,推测是由于室颤所致。猝死不仅发生于重病患者,也发生于较年轻甚至无症状者。在一组追踪观察平均6年 Hypertrophic cardiomyopathy patients often sudden death. The patient has mild symptoms until the age of 40 and is treated with beta adrenergic blockade. It usually develops when hemodynamics deteriorate, with atrial fibrillation and heart failure. Atrial fibrillation, venous pressure was significantly increased cardiac output decreased, the possibility of sudden death, presumably due to ventricular fibrillation. Sudden death occurs not only in seriously ill patients but also in younger or asymptomatic individuals. In a group of follow-up observation average 6 years