作者对12例冠心病患者,男性,年龄25—64岁。6例用β阻滞剂心得安,另6例用α-β阻滞剂柳氨苄心定进行急性血液动力学随机比较。心得安组用心得安后发现静息时患者系统血压无改变,但在运功中下降,心输出量和心率减少,且无论静息时或运动中肺动脉压和SVR均明显增加.柳氨苄心定组用柳氨苄心定后,患者静息时和运动中系 The authors of 12 patients with coronary heart disease, male, aged 25-64 years. Six patients received prophylaxis with β-blocker, and the other 6 patients were randomized to acute hemodynamics using α-β blocker ambroxol. Ann group after the use of peace of mind and found that resting patients with no change in systemic blood pressure, but decreased during exercise, cardiac output and heart rate decreased, and regardless of rest or exercise, pulmonary arterial pressure and SVR were significantly increased Given the group of ampicillin, the patients rest and exercise in the Department