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本研究以４０例胃癌根治术病人为研究对象。病人随机分为四组，对照组术后仅常规静脉补液，肠营养各组术后早期经ＰＳ管输注营养物质。以此来观察经ＰＳ管行术后早期肠内营养的临床应用效果。结果表明，术后早期肠内营养支持明显增加了营养物质的摄入量，改善了氮平衡，减轻了术后血浆蛋白浓度降低的幅度，减少了机体脂肪和瘦组织群的丢失，而且有助于结肠麻痹的恢复。
In this study, 40 patients with radical gastrectomy for gastric cancer were studied. The patients were randomly divided into four groups. In the control group, only routine intravenous rehydration was performed. Intestinal nutrition group was infused with nutrient via PS tube early after operation. In order to observe the clinical application effect of early enteral nutrition after PS tube operation. The results showed that the early postoperative enteral nutrition support significantly increased the intake of nutrients, improved the nitrogen balance, reduced the extent of postoperative plasma protein concentration reduction, reduced the loss of body fat and thin tissue groups, and help In the recovery of colonic paralysis.