摘要：目的：探讨肝素钠冲管对危重症患儿股静脉留置针效果的影响。方法：将68例危重症患儿随机分为肝素钠组(31例)与对照组(37例)。肝素钠组给予10U/ml肝素钠生理盐水冲管后再进行股静脉留置针穿刺，对照组给予常规方法进行股静脉留置针穿刺。观察两组患儿股静脉留置针一次穿刺成功率及肢体肿胀发生率。结果：一次穿刺成功率肝素钠组为87% (27/31)，对照组为75%(28/37);肢体肿胀发生率肝素钠组为3%(2/31)， 对照组为24% (9/37)。统计分析显示两组之间一次穿刺成功率无显著性差异 (P=0.2329)，肢体肿胀发生率存在显著性差异(P<0.05)。结论：肝素钠冲管可减少危重症患儿股静脉留置针穿刺后肢体肿胀发生率。

    关键词：危重症患儿，肝素钠冲管，股静脉，留置针，穿刺方法

    Abstract：Objectives： To evaluate the effect of heparin sodium flushing on femoral venous catheterization in critically ill children. Methods： 68 critically ill children were randomly divided into the heparin sodium group (n=31)and the control group (n=37) . A 10U/ml heparin sodium flushing before femoral venous catheterization was performed in the heparin sodium group ......