拟交感胺药在缺血性心脏病中一般只限于治疗心源性休克和顽固性心力衰竭,其主要作用是使心肌收缩力增强。然而,合理应用拟交感胺药必须考虑其外周血管作用,后者可以明显影响正性肌力作用的血液 Sympathetic drugs in the ischemic heart disease is generally limited to the treatment of cardiogenic shock and refractory heart failure, its main role is to make myocardial contractility. However, the rational use of sympathomimetic drugs must take into account the role of peripheral blood vessels, which can significantly affect the positive inotropic effect of blood