[The instant formulated parenteral solution Fresubin in the postoperative feeding of patients after maxillofacial surgery].

21 patients who underwent maxillofacial surgery received daily 6-8 packets of the instant formula diet Fresubin (2,100-2,800 kcal = 8,790-11,720 J). In 1 patient nutrition with Fresubin had to be interrupted due to vomiting. Under nutrition with Fresubin, mean body weight decreased significantly by about 3.5 kg. Serum electrolytes, blood gases, pH, base excess, serum-urea-nitrogen and creatinine, albumin content, serum transaminases, glucose content, hemoglobin and hematocrit did not show any significant change. It was evident that the sodium and potassium content of Fresubin was not high enough to guarantee normal serum values. In 8 of 21 patients potassium had to be substituted parenterally. Concentrations of lipids and triglycerids increased during nutrition with Fresubin and became elevated over normal values without statistic significance.