肠内免疫营养对胃癌患者术后肠黏膜屏障功能的影响

目的探讨谷氨酰胺强化早期肠内营养对胃癌患者术后肠黏膜屏障功能的影响及临床疗效。方法将80例行胃癌根治性术加术中腹腔温热化疗的进展期胃癌患者按随机数字表法随机分为试验组（40例．术后行谷氨酰胺强化肠内营养支持）和对照组（40例．行常规肠内营养支持）。分别于术前1d、术后第1、7、12天检测肠黏膜屏障功能指标,包括血清二胺氧化酶（DAO）、内毒素脂多糖（LPS）、TNF-α浓度及尿中乳果糖与甘露醇比值（L／M）,并观察肛门排气时间及接受早期营养的耐受性。结果两组患者一般资料的差异均无统计学意义（均P〉0．05）。试验组和对照组分别有2例（5％）和1例（2．5％）不能耐受肠内营养（P〉0．05）。术后1d,各项肠黏膜屏障功能指标两组差异均无统计学意义（P〉0．05）：术后7d．试验组各项肠黏膜屏障功能指标均显著低于对照组（均P〈0．05）;术后12d,试验组DAO、LPS、TNF-α水平仍然显著低于对照组（均P〈0．05）,但尿L／M值则与对照组差异无统计学意义（P〉0．05）。两组术后肛门排气时间差异无统计学意义（P〉0．05）。结论谷氨酰胺早期强化肠内营养具有良好的免疫耐受性．对进展期胃癌切除术中腹腔温热化疗患者术后肠黏膜屏障功能损害具有良好的保护作用。

Effect of early enteral nutrition supplemented with glutamine on postoperative intestinal mucosal barrier function in patients with gastric carcinoma

Objective To investigate the effect of early enteral nutrition (EEN) supplemented with glutamine on postoperative intestinal mucosal barrier function of patients with gastric carcinoma.Methods Eighty patients with gastric carcinoma who underwent intraoperative operitoneal hyperthermic chemotherapy(IPHC) were randomized into two groups:EEN+glutamine (EEN+Gln) group(n =40) and EEN group (n=40). Intestinal mucosal barrier function was evaluated by serum diamine oxidase (DAO), ratio of lactulose to mannitol(L/M), endotoxin lipopolysaccharides(LPS), and tumor necrosis factor-α (TNF-α) at 1 day before operation, 1 day, 7 days, 12 days after operation. Time to first flatus and tolerance to EEN were recorded as well. Results There were no significant differences in the two groups in demographics (all P>0.05). Two cases(5%) in the EEN+Gln group and 1 case (2.5%) in the EEN group could not tolerate well(P>0.05). On postoperative day 1, there were no differences in serum DAO, L/M ratio, LPS, TNF-α between the two groups (P>0.05). On postoperative day 7, all the parameters for mucosal barrier function were significantly lower in the EEN+Gln group. On postoperative day 12, the urinary L/M and DAO, LPS, and TNF-α were still significantly lower in the EEN+Gln group, however, urinary L/M was comparable between the two groups. There were no differences between the two groups in the time to first flatus (P>0.05). Conclusion The immunologic tolerance of enteral nutrition supplemented with glutamine is favorable, which provides protective effect on intestinal mucosal barrier in patients with gastric carcinoma undergoing IPHC.