Printen K J, Halverson J D
Department of Surgery, St. Francis Hospital, Evanston, Illinois.
Am Surg. 1988 May;54(5):267-8.
Serum iron, folate, B12 and total iron binding capacity (TIBC) were obtained preoperatively and at 6-month intervals in 40 morbidly obese patients who underwent VGB. Deficiencies of hemic micronutrients rarely occurred following VBG. Hemoglobin and hematocrit levels were within normal limits at all times. Some patients experienced transitory depression of nutrients at six months postoperatively, during the period of most rapid weight loss and lowest dietary intake. These levels return to normal by one year in almost all cases. Low B12 levels were observed in four patients at 1 year. All had been above 120 per cent overweight and had lost in excess of 100 pounds in the first postoperative year. These data indicate that hemic micronutrients remain at normal levels following VBG. B12 levels should be followed to determine possible need for supplementation other than that provided by usual daily multivitamin preparations in patients above 120 per cent ideal weight loss exceeding 100 lbs in the first postoperative year.
对40例接受垂直胃束带术（VGB）的病态肥胖患者在术前及术后每隔6个月测定血清铁、叶酸、维生素B12和总铁结合力（TIBC）。垂直胃束带术（VBG）后很少发生血液中微量营养素缺乏的情况。血红蛋白和血细胞比容水平始终在正常范围内。一些患者在术后6个月，即体重下降最快且饮食摄入量最低的时期，出现了短暂的营养素水平下降。几乎所有患者的这些水平在1年内都会恢复正常。1年时在4例患者中观察到维生素B12水平较低。所有这些患者体重超重均超过120%，且在术后第一年体重减轻超过100磅。这些数据表明，垂直胃束带术（VBG）后血液中的微量营养素仍保持在正常水平。对于体重超过理想体重120%且在术后第一年体重减轻超过100磅的患者，除了日常服用多种维生素制剂外，应监测维生素B12水平，以确定是否可能需要额外补充。
