BORDEN F W
Calif Med. 1957 Aug;87(2):91-7.
A method for continuous measurement of surgical blood loss has been devised and has been used clinically in some 400 cases. The method combines volumetric measure of the suction loss and gravimetric measure of the sponge loss. The volumetric device automatically deducts the volume of rinse water used and thus measures the amount of blood collected in a metering cylinder. The suction loss scale shows continuously the amount of blood in the metering cylinder. The gravimetric device requires counting sponges into the weighing pan, and turning a dial scale to deduct the initial weight of the sponges. The volume of blood in the sponges is then read directly on the dial scale. Use of the instrument, which is under the supervision of the anesthesiologist, adds about two minutes per hour to the time normally required for counting the sponges; and about three minutes per hour is required for tending the volumetric instrument.In clinical use, knowing constantly the amount of blood loss permits the starting of transfusion before serious deficit develops, and then maintaining the patient's blood volume at a predetermined optimum level. In some 400 cases the continuous measurement of the blood loss served as a reliable guide for carrying out the loss-replacement plan within close limits of accuracy.
一种连续测量手术失血量的方法已经设计出来，并已在约400例临床病例中使用。该方法结合了吸引损失的容量测量和纱布损失的重量测量。容量装置会自动扣除所用冲洗水的体积，从而测量量筒中收集的血液量。吸引损失刻度会持续显示量筒中的血液量。重量装置需要将纱布放入秤盘，转动刻度盘以扣除纱布的初始重量。然后直接在刻度盘上读取纱布中的血液量。在麻醉师的监督下使用该仪器，每小时会比正常清点纱布所需时间增加约两分钟；操作容量仪器每小时需要约三分钟。在临床应用中，持续了解失血量可以在严重失血出现之前开始输血，然后将患者的血容量维持在预定的最佳水平。在约400例病例中，连续测量失血量为在精确的范围内实施失血补充计划提供了可靠的指导。
