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Treatment Effects of Parenteral Vitamins in Total Parenteral Nutrition Patients

Department of Surgery, Hospital of the University, of Pennsylvania, and the Philadelphia Veterans Administration Medical Center, Philadelphia, Pennsylvania

James L. Mullen, M.D.

Department of Surgery, Hospital of the University, of Pennsylvania, and the Philadelphia Veterans Administration Medical Center, Philadelphia, Pennsylvania

John L. Rombeau, M.D.

Department of Surgery, Hospital of the University, of Pennsylvania, and the Philadelphia Veterans Administration Medical Center, Philadelphia, Pennsylvania

Lon O. Crosby, PH.D.

Department of Surgery, Hospital of the University, of Pennsylvania, and the Philadelphia Veterans Administration Medical Center, Philadelphia, Pennsylvania

June L. Oberlander, R.N.

Department of Surgery, Hospital of the University, of Pennsylvania, and the Philadelphia Veterans Administration Medical Center, Philadelphia, Pennsylvania

Linda S. KNox, R.N., B.S.N.

Department of Surgery, Hospital of the University, of Pennsylvania, and the Philadelphia Veterans Administration Medical Center, Philadelphia, Pennsylvania

George Melnik, R.PH.

Department of Surgery, Hospital of the University, of Pennsylvania, and the Philadelphia Veterans Administration Medical Center, Philadelphia, Pennsylvania

To determine the prevalence of abnormal vitamin levels in an adult hospitalized population requiring total parenteral nutrition (TPN) and to assess the effect of routine parenteral vitamin therapy on vitamin levels, we studied 35 general surgical patients. Assays for 12 vitamins were performed both before and after a standard 10-day course of TPN. Patients were given nothing by mouth. The first 25 patients received a daily parenteral vitamin mixture tailored to the recommendations of the Nutrition Advisory Group of The American Medical Association (maintenance dose). The final 10 patients were given a parenteral multivitamin dose providing substantially greater amounts of most vitamins (repletion dose). Only 58% (190/324) of pre-TPN vitamin levels were normal, 25% were low, and 17% were high. No patient had fewer than two abnormal baseline levels. Vitamin levels did not correlate with serum albumin, body weight, or nitrogen balance. After 10 days of treatment, only 39% of low pre-TPN vitamin levels improved; most (45/62) of the low posttreatment levels were low at baseline. The higher repletion dose resulted in a significantly (p < 0.01) greater percent increase in vitamin A, C, and pyridoxine levels.

The prevalence of abnormal vitamin levels in this population is high (42%). Standard parenteral vitamin therapy leads to marginal improvement in abnormally low pre-TPN vitamin levels. (Journal of Parenteral and Enteral Nutrition 11:229-237, 1987)

Journal of Parenteral and Enteral Nutrition, Vol. 11, No. 3, 229-237 (1987)
DOI: 10.1177/0148607187011003229


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