Treatment of External Gastrointestinal Fistulas by a Combination of Total Parenteral Nutrition and Somatostatin

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Abstract
Thirty-seven patients with external gastrointestinal fistulas were treated with a combination of total parenteral nutrition (TPN) and somatostatin (ST). There was a significant fall in fistula output within the first day of treatment (p > 0.001). On the first day of combined therapy, the reduction of fistula output was 70%, and in 68% of the cases, the fistula output fell to less than 50% of the initial level. Spontaneous closure was observed in 82% of the cases, and the time taken to close the fistula ranged between 1 and 14 days of starting therapy [5.4 ± 0.7 days (mean ± SEM)]. The response to TPN-ST treatment occurred irrespective of age and sex of patients, duration and daily output of the fistulas before ST use, and their location in the gastrointestinal tract. Infection of fistula output was a factor of adverse prognosis. In all cases, and in the absence of mechanical obstacles, treatment that combines TPN and ST could be tried and continued up to 14 days in cases in which the fistula output falls more than 50% on the first day of treatment. (Journal of Parenteral and Enteral Nutrition 11:465–470,1987)