每隔半小时同时从两个系统中抽血化验血浆中游离血红蛋白数。

Every half hour the free hemoglobin in plasma in both systems were tested.

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分阶段测定血浆游离血红蛋白浓度，计算和比较转流后溶血指数(HI)。

Haemolytic Index (HI) was calculated and compared after circulation according to the values of free haemoglobin concentrations measured periodically.

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不过，现在这些过多的游离血红蛋白能在血浆中被检测出，因此，本文调查研究了植入不同类型VAD的患者出现溶血的情况。

Only now, the excessive free haemoglobin can be measured in plasma. Here, we investigated haemolysis in patients supported by different VAD types.

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