Hahn R G
Department of Anaesthesiology, Huddinge University Hospital, Sweden.
Acta Anaesthesiol Scand. 1987 Oct;31(7):572-8. doi: 10.1111/j.1399-6576.1987.tb02623.x.
A method for estimation of blood volume changes during transurethral prostatic surgery is presented (haemoglobin dilution method (HDM]. It is based on a calculation of the patient's preoperative total haemoglobin content, from which losses are subtracted. The haemoglobin concentration of the blood is used as an indicator of dilution. The HDM was compared to the 131I-RISA technique in 10 patients undergoing transurethral resection of the prostate (TUR). The difference between the HDM and RISA in estimating the total operative procedure blood volume change was 0.03 +/- 0.12 l (ns) with a linearity of 0.90. The blood volume changes were also predicted by a fluid balance formula. With RISA as reference, the formula had a lower precision (0.24 l) and a poorer linearity (0.65) than the HDM. The HDM did not lose in accuracy if repeated several times during the TURs or if a theoretical formula for estimation of the preoperative blood volume was used.
本文介绍了一种用于评估经尿道前列腺手术期间血容量变化的方法（血红蛋白稀释法[HDM]）。该方法基于对患者术前总血红蛋白含量的计算，从中减去失血量。血液中的血红蛋白浓度用作稀释指标。在10例接受经尿道前列腺切除术（TUR）的患者中，将HDM与131I - RISA技术进行了比较。HDM与RISA在估计整个手术过程血容量变化方面的差异为0.03±0.12升（无显著性差异），线性相关系数为0.90。血容量变化也通过液体平衡公式进行预测。以RISA为参照，该公式的精度较低（0.24升），线性相关性比HDM差（0.65）。如果在TUR过程中多次重复使用HDM，或者使用术前血容量估计的理论公式，HDM的准确性不会降低。
