心功能不全表现为心肌泵不能使心输出量适应机体对氧的需要。当组织需要大量氧时,心肌收缩蛋白机械性能的逐渐减退,说明这种不适应首先表现在用力上。按照血液动力学的计划,正确的治疗目的都是为了增加左心室收缩排血。可能得到下列结果: ——增强心肌蛋白的收缩力(强心药或增强收缩力的药); Cardiac insufficiency manifested as cardiac pump can not adapt cardiac output to the body’s oxygen needs. When the organization needs a lot of oxygen, the mechanical properties of myocardial contractile protein gradually diminished, indicating that this malaise first manifested in the force. According to the hemodynamic plan, the correct treatment is aimed at increasing left ventricular systolic blood flow. The following results are possible: - Increased cardiac muscle contractility (cardiotonics or contractile force);