Abstract
This study aims to explore the efficacy and cognitive impact of the modified Atkins diet (MAD) in adults with drug-resistant epilepsy, as well as to analyze changes in epileptiform activity during ketogenic diet (KD) intervention. We performed a prospective, open-label study with patients aged 16 &ndash; 60 years who met the International League Against Epilepsy (ILAE) criteria for drug-resistant epilepsy. Sixteen patients were enrolled in this study, and baseline clinical and electroencephalography (EEG) characteristics, along with neuropsychological tests, were collected before and after 3 months of KD. Patients were divided into responders (&ge;50% seizure reduction) and non-responders (<50% seizure reduction) according to the clinical efficacy of the KD. Results indicate that 37.5% of patients reported a &ge;50% seizure reduction after 3 months. In terms of safety, 37.5% of patients reported adverse effects, including constipation, abdominal pain, and nausea. In addition, a statistically significant increase in the level of total cholesterol was observed (P = 0.037) after diet treatment. Regarding cognitive impact, there was a significant improvement in auditory verbal learning test (AVLT) instant recall scale scores (P = 0.017). In terms of EEG characteristics, MAD significantly reduces interictal epileptic discharge (IED) index in non-rapid eye movement 2 (NREM2) after 3 months. No clinical predictors or EEG characteristics of MAD efficacy were identified. In conclusion, MAD can be safely and effectively practiced by adults with drug-resistant epilepsy. KD treatment has a significant impact on AVLT instant recall and can reduce the IED index in NREM2.
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