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目的 探讨婴幼儿先天性心脏病手术减少围术期用血量的体外循环方法。方法 将１０ｋｇ 以下先天性心脏病手术患儿９２ 例分为实验组和对照组，实验组使用预充量小的氧合器，并采用改良超滤法。 结果 同对照组相比，实验组可以将体外循环预充所用的少浆血和血浆用量分别从３４３ ±７３ｍｌ 和２８５ ±１３８ｍｌ 降低到２２０ ±７７ｍｌ 和１６２ ±７２ｍｌ，还可以把术后少浆血用量从３５６ ±１４０ｍｌ 减少到２７５ ±１２８ｍｌ。 结论 体外循环中要采用综合性措施减少围术期用血量，应尽量减少预充量，并进行血液浓缩；同时还要减少出血，加强止血；减少血液破坏，才能最大限度的减少用血量。
Objective To investigate the method of extracorporeal circulation for reducing perioperative blood volume in infants with congenital heart disease. Methods Ninety-two children under 10kg of congenital heart disease under operation were divided into experimental group and control group. In the experimental group, a small pre-filled oxygenator was used and the modified ultrafiltration method was used. Results Compared with the control group, the experimental group can reduce the amount of plasma and plasma used in prefilled cardiopulmonary bypass from 343 ± 73ml and 285 ± 138ml to 220 ± 77ml and 162 ± 72ml, respectively. The dosage was reduced from 356 ± 140 ml to 275 ± 128 ml. Conclusion Extracorporeal circulation should be comprehensive measures to reduce perioperative blood, should minimize pre-charge, and blood concentration; also reduce bleeding, strengthen hemostasis; reduce blood damage, in order to minimize the use of blood .