联合中心静脉置管对早产儿生理性体重变化的影响

目的研究中心静脉置管对早产儿生理性体重变化的影响。方法前瞻性设计了早产儿体重变化临床观察记录表，观察最低体重日龄、最低体重、恢复至出生体重的日龄等；根据是否有中心静脉置管及置管早产儿是否有导管相关性血流感染等因素，将早产儿分为外周组、中心组和感染组，对以上数据进行方差分析和卡方检验。结果中心组、感染组、外周组的体重上升天数分别为（9．8±6．8）、（9．0±4．6）、（13．4±5．0），中心组和感染组均较外周组短，差异有统计学意义（P〈0．05）。中心组、感染组、外周组的体重恢复速度分别为（28,4-29）、（18±9）、（17±7）g／天，中心组体重恢复速度较外周组快，差异有统计学意义（P〈0．05）。结论联合中心静脉置管能有效促进早产儿的体重增长。

Effect of unit center vein catheter to changes of physiologic weight loss in premature infants

Objective To investigate the influence of the unit center vein catheter in the changes of physiologic weight loss in premature infants. Methods We designed a sheet to record the weight of premature infants every day. The data included the day age of the lowest weight, the day age resumed to birth weight. According the carried center vein catheter or happened catheter-related blood steam infection, patients were divided into 3 groups （center group, infection group and peripheral group）. Results The weight raised days were compared among the three groups （ 9.8 ± 6.8 ） vs （ 9.0 ± 4.6 ） vs （ 13.4 ± 5.0 ） days, P 〈 0.05 ], center group and infection group were shorter than that of peripheral group （P 〈 0.05 ） . Comparing the growing up speed between center group and peripheral group, the center group was faster （ 28 ± 29 ） vs （ 17 ± 7 ） g/day, P 〈 0.05]. Conclusion Unit center vein catheter can improve the weight of premature infants efficiently.