10名严重心力衰竭病人使用多巴胺(4ug/kg/分)和多巴他敏(Dobutamine)(7.5ug/kg/分)治疗。两药均可使搏出量和心输出量增加,分别为50%及60%左右,伴有外周血管阻力下降约33%。使用多巴胺的病人心率约增加12%,而使用多巴他敏的病人心率保持不变。使用多巴他敏可使两心室的前负荷发生有重要意义的下降,而滴注多巴胺仅使心室充盈压轻度降 Ten patients with severe heart failure were treated with dopamine (4ug / kg / min) and Dobutamine (7.5ug / kg / min). Both drugs can stroke volume and cardiac output increased, respectively, 50% and 60%, accompanied by decreased peripheral vascular resistance about 33%. The heart rate of patients using dopamine increased by about 12%, while the patient’s heart rate remained unchanged. The use of dopaminergic makes a significant decrease in the preload of both ventricles, whereas drip infusion of dopamine causes a mild decrease in ventricular filling pressure