Safety and role of ketogenic parenteral nutrition for intractable childhood epilepsy.

To retrospectively evaluate the safety and role of ketogenic parenteral nutrition in patients with intractable childhood epilepsy. The ketogenic parenteral nutrition was given to 10 patients who were unable to absorb nutrients through the intestinal tract because of various gastrointestinal disorders and required complete bowel rest. This nutrition consisted of conventional intravenous fat emulsion (20% Lipision) plus dextrose and amino acid (6% Trophamine) hyperalimentation in a 4:1 (or 3:1) lipid to non-lipid ratio, infused during the bowel rest. If the ketogenic parenteral nutrition allowed normal daily functioning or resolved the underlying problems, we soon changed it to the enteral ketogenic diet (KD). The mean (±SD) duration of the ketogenic parenteral nutrition was 4.1 (±1.5) days. Although a brief span of several days, all patients could maintain ketosis and the efficacy of the previous enteral KD during the ketogenic parenteral nutrition. Complications included elevated aspartate aminotransferase and/or alanine aminotransferase in one patient. Amylase and lipase increased in one patient. Serum triglyceride level increased to the level of 1885 mg/dl in one patient, but normalized in one week after discontinuation of the ketogenic parenteral nutrition and resuming of the enteral KD. Nine patients (90%) remained on the enteral KD after the ketogenic parenteral nutrition (the mean follow-up period was 9 months), including 2 patients who successfully completed the diet with seizure free state. Only one patient discontinued the ketogenic parenteral nutrition because of persistent increase of the amylase and lipase levels. The ketogenic parenteral nutrition proved to be a relatively safe short-term method of continuing KD to maintain ketosis for seizure control, while patients were unable to absorb nutrients through their intestinal tract.