Effects of enteral immunonutrition emulsion on immune function in critically ill patients with mechanical ventilation / 中国中西医结合急救杂志

ABSTRACT

Objective To observe the intervention effect of immune-enhancing enteral nutrition (EN) emulsion on immune function of critically ill patients with mechanical ventilation (MV). Methods One hundred and twenty critically ill patients with MV admitted to the Department of Emergency Intensive Care Unit (EICU) of Taizhou First People's Hospital from July 2015 to June 2017 were enrolled, and they were divided into immune-enhancing EN group and standard EN group by random numbers generated by a computer. Ultimately, 76 cases were enrolled in the study, among them, 36 cases were in the immune-enhancing nutrition group and 40 cases were in the standard nutrition group. The differences of acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ), the sequential organ function evaluation (SOFA) score on 1, 3, 7 days and immunity indexes (secretory immuno-globulins IgA, IgG, IgM), lymphocyte subpopulation (CD4 and CD8), duration of MV and the length of ICU stay on the 1, 7 days after EN were compared. Results Comparisons between the immune-enhancing EN group and standard EN group showed APACHE Ⅱ score had no statistically significant difference between the two groups at each time point, SOFA score on 7 days after EN treatment was significantly decreased in the immune-enhancing EN group (2.56±1.38 vs. 3.68±2.96, P < 0.05); IgA, IgG, IgM were obviously higher in the immune-enhancing EN group than those in standard EN group on 7 days after treatment [IgA (mg/L) 2 967.6±635.6 vs. 2 525.0±592.7, IgG (mg/L) 14 982.5±2 899.7 vs. 12 996.4±2 875.9, IgM (mg/L) 1 206.8±233.3 vs. 1 093.2±165.1, all P < 0.05], CD4 (0.45±0.06 vs 0.37± 0.10) and CD8 (0.20±0.03 vs. 0.18±0.04) were significantly higher than those in standard EN group (both P < 0.05). The MV time (hours) 122.33±63.91 vs. 155.69±77.06) and ICU stay time (hours) 197.57±70.60 vs. 239.61±84.83) of the immuno-enhancing EN group were markedly shorter than those of the standard EN group (both P < 0.05). Conclusion Compared with standard EN, the immune-enhancing EN emulsion can improve the immune function of critically ill patients with MV, and shorten the duration of MV support and the length of ICU stay.