充血性心力衰竭(心衰)是一种常见病症,美国报道占人群中2％,虽然对心衰的诊断和治疗有了很大的进展,但预后仍然是很差的,据统计从得到诊断起大约5年的死亡率>50％。 心衰的存活率低主要决定如下因素:(1)左室功能严重低下。(2)电解质的紊乱和血清中儿茶酚胺水平低下。(3)频繁室性心律失常的发生。(4)心衰的病原学,特别是缺血性心肌病伴有室性心律失常者大大 Congestive heart failure (heart failure) is a common condition, the United States accounts for 2% of the population, although the diagnosis and treatment of heart failure has made great progress, but the prognosis is still very poor, according to statistics from the diagnosis Approximately 5 years of mortality> 50%. Low survival rate of heart failure mainly determines the following factors: (1) severe left ventricular dysfunction. (2) electrolyte imbalance and serum catecholamine levels are low. (3) the occurrence of frequent ventricular arrhythmias. (4) etiology of heart failure, especially with ischemic cardiomyopathy associated with ventricular arrhythmias were greatly