免疫肠内营养对重症肺炎病人肠黏膜屏障及免疫功能的影响

目的:研究免疫肠内营养对重症肺炎病人肠黏膜屏障及免疫功能的影响。方法:将90例重症肺炎病人随机分为研究组和对照组,每组各45例。除常规治疗外,研究组病人给予免疫增强型肠内营养(EN)制剂(瑞能,TPF-T)进行免疫EN支持治疗。对照组病人给予普通型EN制剂(瑞素,TP)进行标准EN支持治疗。比较两组病人治疗前和治疗第5和第10天的一般情况、肠黏膜屏障功能指标及免疫功能指标的变化。观察并比较治疗第10天两组的有创通气时间、APACHEⅡ评分和临床疗效。结果:治疗第5和10天后,两组病人的体温、呼吸、心率、白细胞计数均较治疗前明显降低(P0.05),且研究组显著低于对照组(P0.05)。治疗第5和10天后,两组病人的血浆内毒素(ET)、二胺氧化酶(DAO)水平均较治疗前显著降低(P0.05),且研究组水平显著低于对照组(P0.05)。治疗第5和10天后,两组病人的IgA、IgG、IgM、CD3~+、CD4~+细胞数和CD4~+/CD8~+水平均较治疗前显著升高(P0.05),且研究组水平显著高于对照组(P0.05)。治疗第10天后,研究组病人有创通气时间和APACHEⅡ评分显著低于对照组(P0.05),临床总有效率明显高于对照组(P0.05)。结论:免疫EN治疗可更有效地保护重症肺炎病人的肠黏膜屏障功能、改善免疫状态,增强病人的免疫功能,减少有创通气时间,提高临床疗效。

The effect of enteral immunonutrition on intestinal barrier function and immune function in patients with severe pneumonia

Objective:To investigate the effects of enteral immunonutrition on the intestinal barrier function and immune function in patients with severe pneumonia.Methods:Ninety patients with severe pneumonia were randomly divided into experimental group (n =45) and control group (n =45).All patients were received conventional therapy.In addition,patients in experimental group were given enteral immunonutrition,while patients in control group were given regular enteral nutrition.The changes of general conditions,intestinal barrier function index and immune function index were determined before treatment,on day 5 and 10 after treatment.The time of invasive mechanical ventilation,APACHE Ⅱ score and clinical effects of two groups were determined on day 10 after treatment.Results:Compared with those before treatment,in both groups,body temperature,respiration,heart rate,white blood cell count were all significantly decreased on day 5 and 10 after treatment (P ＜ 0.05).The above parameters were significantly lower in experimental group than control group on day 10 after treatment (P ＜ 0.05).The levels of serum ET,DAO were significantly decreased on day 5 and 10 after treatment in two groups compared with those before treatment (P ＜ 0.05),and these parameters were significantly lower in experimental group than control group(P ＜0.05).The number of CD3 and CD4 positive cell and the ratio of CD4 +/CD8 + were significantly increased on day 5 and 10 after treatment in two groups when compared with those before treatment (P ＜ 0.05),and these parameters were higher in experimental group than those in control group(P ＜ 0.05).The time of invasive mechanical ventilation,APACHE Ⅱ score were lower in experimental group than those in control group on day 10 after treatment (P ＜ 0.05).The rate of clinical response were higher in the experimental group than that in the control group on day 10 after treatment (P ＜ 0.05).Conclusion:Enteral immunonutrition is more effective in protecting the intestinal barrier function,improving the immune status,enhancing the immunity,reducing the time of invasive mechanical ventilation,and achieving the clinical effects of patients with severe pneumonia.