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大多数血管扩张剂虽降低动脉压和心肌作功,但可引起反射性心动过速,因此使其抗心绞痛作用受限。甲巯丙脯酸减低冠脉病变的高血压患者的心肌氧耗量,而并不引起反射性心动过速。后者可
Although most vasodilators reduce arterial pressure and myocardial work, but can cause reflex tachycardia, so its anti-anginal effect is limited. Captopril reduces myocardial oxygen consumption in patients with coronary artery disease without causing reflex tachycardia. The latter can be