摘要
为了解早期肠道内营养和肠道选择性抑菌对内毒素移位和细胞因子的影响及其在降低多器官功能不全综合征（ＭＯＤＳ）发生中的作用，在失血性休克再灌注动物模型基础上，对早期肠内营养组（ＥＮ组，ｎ＝１２）、选择性肠道清洁组（ＳＤＤ组，ｎ＝１２）以及对照组（ＣＯＮ组，ｎ＝１２）兔门静脉和体循环血中内毒素及ＴＮＦα水平进行了测定，并同时观察了３组动物的死亡及发生ＭＯＤＳ的情况。结果：ＥＮ组多器官衰竭发生率及死亡率明显低于ＳＤＤ组和ＣＯＮ组；ＥＮ组门静脉及体循环血中内毒素和ＴＮＦα水平均较ＳＤＤ组及ＣＯＮ组低；ＳＤＤ组在术后第５天其门静脉及体循环血中内毒素和ＴＮＦα仍处在较高水平，其ＭＯＤＳ发生率及死亡率与ＣＯＮ组无明显差异。本实验结果提示：缺血再灌注损伤时可发生内毒素移位，引起内毒素血症，引发ＭＯＤＳ；肠道选择性抑菌（ＳＤＤ）对内毒素移位的抑制作用不明显，不能有效地抑制ＭＯＤＳ的发生及降低死亡率；早期建立肠道内营养是防止肠道内毒素移位。
To study the effects of early enteral nutrition and selective decontamination of digestive tract on the lipopolysacchride (LPS) translocation and cytokines and the developing of multiple organ dysfunction syndrome (MODS). Thirty six rabbits were divided into 3 groups: ①control group (CON group, n= 12), the rabbits were bled to shock state (MAP was 5.33 kPa) for 1 hour and then were resuscitated by with replacement of the lost blood and 2 volume of the equilibrium liquid, ②selective decontamination of digestive tract (SDD group, n= 12), the procedure was the same as the CON group but the rabbit was fed with the antibiotics 3 days before the experiment and all through the experiment, ③early enteral nutrition group (EN group, n= 12), treatment was the same as CON group. After resuscitation the feeding tube was placed into the stomach for enteral nutrition. On the 1st, 3rd, 5th and 7th day the blood samples were taken for testing the LPS, TNFα and the organs' function. Results: The MODS incidence, the levels of LPS and TNFα of the EN group were obviously lower than those in SDD and CON groups; the levels of the LPS and TNFα of the SDD group remained high in the 5th day. SDD group had a higher incidence of the MODS and mortality than that of the EN group. Conclusion: Ischemia reperfusion damage can produce the LPS translocation, which causes the development of MODS. SDD can't decrease the LPS translocation so that the incidence of MODS and mortality remain high. Early EN can inhibit LPS translocation and reduce the development of MODS.
出处
《中国普外基础与临床杂志》
CAS
1999年第2期70-72,共3页
Chinese Journal of Bases and Clinics In General Surgery
关键词
内毒素
肠内营养
肿瘤坏死因子
多器官衰竭
Multiple organ dysfunction syndrome Lipopolysacchride Tumor necrosis factor Enteral nutrition Selective decontamination of digestive tract
