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心力衰竭的主要特征是心排出量和身体所需要者相比,相对地减少。在适当情况下,可按 Frank-Starling 定律通过增加心室舒张期容量(前负荷),或通过增加心肌收缩力(正性收缩能作用)而增加心排出量。除了这
The main characteristic of heart failure is that the amount of cardiac output is relatively reduced compared with what is needed by the body. Where appropriate, cardiac output may be increased according to Frank-Starling’s law by increasing ventricular diastolic volume (preload), or by increasing myocardial contractility (positive systolic action). Besides this