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我院1990年10月至1994年10月间共有84例胃癌患者行根治性切除术。其中43例术后予胃肠外营养支持（PN）．41例未予营养支持（作对照组）。PN组每日总热卡为35～45kcal／kg，氮0．2～0．4g／kg，两者之比150～250：1。结果显示PN组术后体重和血浆白蛋白下降值明显低于对照组（p＜0．05），PN组淋巴细胞计数下降值较对照组低，但无显著性差异（p＞0．05）．这可能与PN组手术范围相对大，术前血浆白蛋白水平相对低有关。因此认为PN能有效阻止和减缓术后营养状况的恶化，有利于术后病人免疫功能恢复。
In our hospital from October 1990 to October 1994, a total of 84 patients with gastric cancer underwent radical resection. 43 cases of postoperative parenteral nutrition support (PN). Forty-one patients did not receive nutritional support (as a control group). In the PN group, the total daily calorie intake was 35 to 45 kcal/kg, and nitrogen was 0.2 to 0.4 g/kg. The ratio between the two groups was 150 to 250:1. The results showed that postoperative weight and serum albumin decreased significantly in the PN group compared with the control group (p<0.05). The decrease in lymphocyte count in the PN group was lower than in the control group, but there was no significant difference (p>0.05). . This may be related to the relatively large range of surgery in the PN group and the relative low plasma albumin levels before surgery. Therefore, it is considered that PN can effectively prevent and slow down the deterioration of postoperative nutritional status, which is beneficial to the recovery of immune function of postoperative patients.