中文摘要：

目的：探讨肠内营养（EN）管饲过程中最佳的冲管方式。方法：将300例病人随机分为研究组、对照1组和对照2组,每组各100例。在常规喂养管维护下,采用40～42℃温开水30～50 ml脉冲式冲管方式作为研究组,40～42℃温开水30～50 ml,正压冲管方式作为对照1组,常温等渗盐水30～50 ml,正压冲管方式作为对照2组。比较各组喂养管堵管率的差异。结果：研究组、对照1组和对照2组喂养管的堵管率分别为1%、9%和12%,研究组分别与对照1组和对照2组比较有显著性差异（P〈0.05）。结论：在EN支持中,喂养管采用40～42℃温开水脉冲式冲管的堵管率低于正压冲管,更低于常温下的等渗盐水正压冲管。

英文摘要：

Objective： To explore the best tube washing way for the tube feeding of enteral nutrition（EN）.Methods： 300 patients were randomly divided into three groups,namely the observation group,the control group 1 and the control group 2,with each group including 100 members.The feeding tubes of the members in the observation group,which had been normally maintained,were impulsively washed with 30~50 ml of boiled water at 40~42℃;the feeding tubes of the members in the control group 1 were washed with 30~50 ml of boiled water at 40~42℃ under positive pressure;while the feeding tubes of the members in the last group were washed with 30~50 ml normal saline at room temperature under positive pressure.Then,a comparison was made about the differences in the blockage rates of the feeding tubes in the three groups.Results： The blockage rates of the feeding tubes of the members in the observation group,control group 1,and control group 2 stood at 1%,9% and 12%,respectively.The observation group was statistically significant to both control group 1 and control group 2（P0.05）,but there was no significant difference between control group 1 and the control group 2（P0.05）.Conclusion： The blockage rate of the EN feeding tubes impulsively washed by boiled water at 40~42℃ is significantly lower than those washed under positive pressure,and is even more lower than those washed with normal saline at room temperature under positive pressure.