慢性充血性心力衰竭既往采用毛地黄和利尿剂治疗,取得了一定疗效,近年来血管扩张剂被运用于临床,为心衰的治疗开辟了一个新的途径。血管扩张剂种类甚多,按药理作用可分为平滑肌松弛剂、α肾上腺素能拮抗剂、β肾上腺素能兴奋剂、肾素—血管紧张素系统拮抗剂(简称RAS拮抗剂)。前三类已广泛用于临床,RAS拮抗剂正受到愈 Chronic congestive heart failure in the past with the treatment of hair yellow and diuretics, and achieved a certain effect, in recent years, vasodilators have been used in clinical practice for the treatment of heart failure has opened up a new avenue. Many types of vasodilators, pharmacological effects can be divided into smooth muscle relaxants, alpha adrenergic antagonists, beta adrenergic stimulants, renin - angiotensin system antagonists (referred to as RAS antagonists). The first three categories have been widely used clinically and RAS antagonists are being harmed