波振幅的改变与心输出量及心脏的泵血功能，尤其是肺动脉楔压之间无明显关系。
The variation of R wave amplitude has little relation with cardiac output, heart pumping function, especially with pulmonary wedge pressure.
心输出量和外周血管阻力的变化情况与血压改变相类似。
The changes of cardiac output and peripheral vascular resistance were similar to that of mean arterial pressure.
在不改变心率、心输出量及肺动脉楔压（除非有心衰存在）的情况下降低总外周阻力。
Total peripheral resistance is lowered without altering heart rate, cardiac output, or pulmonary wedge pressure (unless heart failure is present).
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