慢性心力衰竭(chronic heart failure,CHF)是指各种原因引起心脏泵功能受损,致使心输出量减少,不能满足机体组织代谢需要,通常又称充血性心力衰竭。随着冠心病急性期病死率的下降和人口的老龄化,CHF的发病率显著上升,CHF已经成为严重影响老年人生活质量的疾病,也是导致老年人死 Chronic heart failure (CHF) refers to a variety of causes of impaired cardiac pump function, resulting in reduced cardiac output, can not meet the body’s metabolic needs, usually also known as congestive heart failure. With the decline of mortality and the population aging in the acute phase of coronary heart disease, the incidence of CHF is significantly increased. CHF has become a serious disease affecting the quality of life of the elderly and also causes death of the elderly