编辑同志: 心得安系非选择性β受体阻滞剂,抑制心脏收缩力,降低心输出量,可加重已有和潜在的心衰,能否用于心衰仍有较大争论。今有幸拜读《医学理论与实践》1992;(5卷):1期,周俊生医师“加服小剂量心得安治疗心表的临床观察”一文后,获益非 Editor comrades: Experience in the Department of non-selective β-blockers, inhibition of cardiac contractility, reduce cardiac output, can exacerbate existing and potential heart failure, can still be used for heart failure there is still much debate. It is fortunate to read the “Medical Theory and Practice” 1992; (5 volumes): 1, Dr. Zhou Junsheng, “plus a small dose of experience in the treatment of clinical observation of the table,” a article, benefit from non