Tanos B, Kovács G
Acta Chir Acad Sci Hung. 1979;20(2-3):141-8.
Double tracer blood volume technique revealed in open heart surgery patients a wide variability of Fcells-value in about 11 per cent of cases investigated, from the "normal" 0.91 value. The possible calculational error of blood volume measurements by single-isotopic--haematocrit methods in the normal or subnormal LVH-ranges point to the superiority of plasma volume determinations in the calculation of the total blood volume. The calculation of the volume of the blood-component actually not-labelled during single-isotopic--haematocrit procedures can be so highly inaccurate because of the hidden deviation of Fcells-value, that such misleading arithmetics has no real value and therefore should be omitted. Estimation of the large vessel and small vessel volumes and haematocrits in patients showed a rough 70 per cent---30 per cent distribution of the circulating blood volume between large and small vessels and an LVH tosmall vessel haematocrit ratio of 2:1 to 2:1.5. This offers a possibility to divide the circulating blood volume into a haemodynamically active (large vessel area) and a metabolically active (small vessel area) part, which can have important diagnostic and prognostic implications.
双示踪剂血容量技术显示，在心脏直视手术患者中，约11%接受调查的病例中，F细胞值与“正常”的0.91值相比存在很大差异。在正常或低于正常左心室肥厚范围内，单同位素-血细胞比容法测量血容量可能存在计算误差，这表明在计算总血容量时，血浆容量测定具有优越性。在单同位素-血细胞比容程序中，由于F细胞值的隐藏偏差，实际未标记的血液成分体积的计算可能非常不准确，以至于这种误导性的算法没有实际价值，因此应该省略。对患者大血管和小血管体积及血细胞比容的估计显示，循环血容量在大血管和小血管之间大致呈70% - 30%的分布，左心室肥厚与小血管血细胞比容之比为2:1至2:1.5。这为将循环血容量分为血流动力学活跃（大血管区域）和代谢活跃（小血管区域）部分提供了可能，这可能具有重要的诊断和预后意义。
