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心室收缩功能受损是心衰临床综合征的特征,但近年研究认为约30～40％的临床心衰患者的左室收缩功能正常。本文旨在评价扩血管疗法对心衰患者的疗效。作者将心脏扩大或左室功能受损(心胸比>0.55或左室舒张内径(LVDD)>2.7cm/m~2体表面积、或左室射血分数(LVEF)<
Impairment of ventricular systolic function is characteristic of clinical syndrome of heart failure, but recent studies suggest that about 30 to 40% of patients with clinical heart failure have normal left ventricular systolic function. This article aims to evaluate the efficacy of vasodilator therapy in patients with heart failure. The authors have impaired cardiac function or impaired left ventricular function (cardiothoracic ratio> 0.55 or LVDD> 2.7 cm / m 2 body surface area, or LVEF <