[Postoperative nutrition of maxillary surgery patients with the instant formula diet].

33 patients, who underwent maxillo-facial surgery, were fed with the instant formula diet Nutricomp F via a nasogastric tube for a mean time of 10 days. According to intolerance tube feeding had to be interrupted in 3 patients. Other side effects of nutrition with Nutricomp F were diarrhea (2,9%), nausea (1,2%), vomiting (1,2%) and eructation (1,2%). The mean frequency of defecation was 0,64/day. Glucose content of the blood, water balance, body weight, serum electrolytes, liver enzymes, acid-base-balance and the protein content of the serum did not change significantly. The postoperative increase of urea content in the serum is believed to be independent from formula diet.