The variation of R wave amplitude has little relation with cardiac output, heart pumping function, especially with pulmonary wedge pressure.
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.
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。
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