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心力衰竭是临床多见而又危急的心脏病,其病理是由于心脏的前后负荷增加和心肌收缩力减退两方面的原因而影响心排量不足。前者提倡应用扩血管药物,后者过去依赖洋地黄直接增加心肌收缩力,但对某些心衰患者非但难以奏效,且易有毒性反应。多巴
Heart failure is more common clinical and critical heart disease, the pathology is due to increased cardiac load and myocardial contractility before and after the two factors that affect the cardiac output deficit. The former advocates the use of vasodilator drugs, which in the past rely on digitalis directly increase myocardial contractility, but not only difficult for some patients with heart failure, and easy to toxic reactions. Dopa