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本文测定12例扩张型心肌病伴充血性心力衰竭患者静脉滴注硝酸甘油和多巴酚丁胺的血液动力学及左心室功能变化。硝酸甘油使主动脉、肺动脉和左心室充盈压明显下降,心脏指数增加。多巴酚丁胺并不明显改变主动脉压和肺动脉压,轻度降低左心室充盈压,但显著增加心脏指数。两药均降低血管阻力和增加左心室射血分数。上述部分有益作用在两药合用时尤为明显。
This article measured 12 patients with dilated cardiomyopathy with congestive heart failure patients intravenous drip nitroglycerin and dobutamine hemodynamics and left ventricular function changes. Nitroglycerin aortic, pulmonary artery and left ventricular filling pressure decreased significantly, cardiac index increased. Dobutamine did not significantly change aortic pressure and pulmonary arterial pressure, mildly reduced left ventricular filling pressure, but significantly increased cardiac index. Both drugs reduce vascular resistance and increase left ventricular ejection fraction. The above part of the beneficial effect of the combination of two drugs is particularly evident.