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Is ketogenic diet treatment hepatotoxic for children with intractable epilepsy?

Published:November 13, 2016DOI:https://doi.org/10.1016/j.seizure.2016.10.024

      Highlights

      • KD causes hepatic side effects in 5.7% of the patients with multidrug-resistant epilepsy.
      • Aminotransferase elevation and liver steatosis are the most frequent hepatic side effects of KD.
      • Besides the high fat content of the diet, the exact mechanisms of the liver toxicity remain unknown.

      Abstract

      Purpose

      Long-term ketogenic diet (KD) treatment has been shown to induce liver steatosis and gallstone formation in some in vivo and clinical studies. The aim of this retrospective study was to evaluate the hepatic side effects of KD in epileptic children.

      Method

      A total of 141 patients (mean age: 7.1 ± 4.1 years [2–18 years], 45.4% girls), receiving KD at least one year for intractable epilepsy due to different diagnoses (congenital brain defects, GLUT-1 deficiency, West syndrome, tuberous sclerosis, hypoxic brain injury, etc.) were included in the study. Serum triglyceride, cholesterol, aminotransferase, bilirubin, protein and albumin levels and abdominal ultrasonography were recorded before and at 1, 3, 6, and 12 months following after diet initiation.

      Results

      The mean duration of KD was 15.9 ± 4.3 months. At one month of therapy, three patients had elevated alanine and aspartate aminotransferase levels. These patients were receiving ketogenic diet for Doose syndrome, idiopathic epilepsy and GLUT-1 deficiency. Hepatosteatosis was detected in three patients at 6 months of treatment. Two of these patients were treated with KD for the primary diagnosis of tuberous sclerosis and one for Landau Kleffner syndrome. Cholelithiasis was detected in two patients at 12 months of treatment. They were receiving treatment for West syndrome and hypoxic brain injury sequelae.

      Conclusion

      Long-term ketogenic diet treatment stimulates liver parenchymal injury, hepatic steatosis and gallstone formation. Patients should be monitored by screening liver enzymes and abdominal ultrasonography in order to detect these side effects.

      Keywords

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