目的 探讨营养干预中不同维生素矿物质比在胃癌围手术期的临床效果。方法 21例胃癌全胃切除术患者分为 3组， 所有患者手术后第 1 天开始行早期肠内营养支持， A 组患者给予高维生素低微量元素比营养支持， B 组患者给予中维生素 微量元素比营养支持， C 组患者给予低维生素低微量元素比营养支持，并在营养支持前后测定体重、血红蛋白、前白蛋白、 血清白蛋白、肝肾功能、血糖、电解质、排气时间。 结果 21 例病例在研究期间无死亡 , 无严重并发症 , 肝肾功能无变化。 各组间术前营养指标具备可比性。 A 组营养指标显著优于 B、 C 两组且与术前营养水平无统计学差异。 结论 少量微量元素 配合大量维生素应用于营养支持中可以取得更好的疗效，适合运用于胃癌全切术的围手术期治疗和护理。

Objective To investigate the clinical effect of the nutrition intervention of different vitamins and minerals proportion during the perioperative period of total gastrectomy. Methods 21 cases total gastrectomy for gastric cancer patients were divided into three groups and all patients started early enteral nutrition support on the frst days after operation. Group A,B,C were respectively treated with high, middle and low vitamin and minerals proportion nutritional support, and the body weight, hemoglobin, prealbumin, plasma protein, liver and kidney function, blood glucose, electrolytes, exhaust time before and after nutrition support were recorded. Results 21 cases with no death , no serious complications, liver and kidney function had no change during the study. Nutritional index of group A was superior to that of groups B, C and have no statistical difference with the preoperative nutritional level. Conclusions Effect of a few mineral with a large number of vitamins used in nutrition support can achieve better, and suitable for nursing and treatment in operation period of total gastrectomy