Objective to explore the normal value of left ventricular end-diastolic pressure (LVEDP) and left ventricular diastolic index (LDI) measured by reconstructed impedance cardiogram (RICG).

目的探讨重建心阻抗图测定左室舒张末期压(LVEDP)和左室舒张指数(LDI)的正常值。

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If minor doses are used, they can expand veins, lessen the vein reflux, cut down diastolic pressure or left ventricular end and cut down the load of the heart, and reduce the oxygen consumption.

小剂量时可扩张静脉，使静脉回流减少，左室舒末压下降，使心脏前负荷降低，降低心肌耗氧量。

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If minor doses are used, they can expand veins, lessen the vein reflux, cut down diastolic pressure or left ventricular end and cut down the load of the heart, and reduce the oxygen consumption.

小剂量时可扩张静脉，使静脉回流减少，左室舒末压下降，使心脏前负荷降低，降低心肌耗氧量。

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