Efficacy of the classic ketogenic and the modified Atkins diets in refractory childhood epilepsy

Jeong A. Kim, Jung Rim Yoon, Eun Joo Lee, Joon Soo Lee, Jeong Tae Kim, Heung Dong Kim, Hoon Chul Kang

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Abstract

Summary Objective We aimed to compare the efficacy, safety, and tolerability of a modified Atkins diet (MAD) with the classic ketogenic diet (KD) for the treatment of intractable childhood epilepsy. Methods From March 2011 to March 2014, 104 patients aged 1-18 years who had refractory epilepsy were randomly assigned to each diet group (ClinicalTrials.gov, number NCT2100501). A seizure diary record was used to compare seizure frequencies with the baseline prediet seizure frequency at the third and sixth months after diet therapy initiation. Results Fifty-one patients were assigned to the KD and 53 patients to the MAD. The KD group had a lower mean percentage of baseline seizures compared with the MAD group at 3 months (38.6% for KD, 47.9% for MAD) and 6 months (33.8% for KD, 44.6% for MAD), but the differences were not statistically significant (95% confidence interval [CI] 24.1-50.8, p = 0.291 for 3 months; 95% CI 17.8-46.1, p = 0.255 for 6 months). Instead, for patients aged 1-2 years, seizure outcomes were consistently much more favorable in patients consuming the KD compared with those consuming the MAD. The rate of seizure freedom at 3 months after diet therapy initiation was significantly higher (53% for KD, 20% for MAD, p = 0.047) in these patients. The MAD had advantages with respect to better tolerability and fewer serious side effects. Significance The MAD might be considered as the primary choice for the treatment of intractable epilepsy in children, but the classic KD is more suitable as the first line of diet therapy in patients <2 years of age.

Original languageEnglish
Pages (from-to)51-58
Number of pages8
JournalEpilepsia
Volume57
Issue number1
DOIs
Publication statusPublished - 2016 Jan 1

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All Science Journal Classification (ASJC) codes

  • Neurology
  • Clinical Neurology

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