• P N Omefe, M A N Adeboye, S A Biliaminu, and Ayodele Ojuawo.
• Department of Paediatrics, Federal Teaching Hospital, Ido-Ekiti/Afe Babalola University Ado-Ekiti, Ekiti State, Nigeria.
• Niger J Clin Pract. 2022 Oct 1; 25 (10): 1641-1646.

BackgroundChildren suffering from epilepsy are maintained on antiepileptic drugs (AED) to ensure a reasonable quality of life. These drugs, however, are not without side effects. Notable among which is interference with the metabolism of folate with its attendant clinical implications such as megaloblastic anemia and bleeding diathesis.AimThis study was carried out to determine the serum folate levels of children with epilepsy, compare the folate levels of these children with that of controls, the levels in subjects on different AED, and to investigate the possible effect of duration of AED use on serum folate levels.Patients And MethodsIt was a comparative cross-sectional study involving children with epilepsy aged 2-14 years attending the paediatric neurology clinic of University of Ilorin Teaching Hospital (UITH), Ilorin. A total of 140 epileptic and 140 age-and-sex-matched nonepileptic children as controls were recruited into the study.ResultsMean serum folate levels in subjects of 6.3 ± 1.6 ng/mL was significantly lower than 7.5 ± 1.5 ng/mL in controls (P = 0.001). The mean serum folate level in subjects on AED was comparable with the value in AED naïve subjects. The mean serum folate level was also comparable among subjects on carbamazepine, phenobarbitone, and valproate as monotherapy. There was no correlation between the duration of AED use and the mean serum folate levels (r = -0.180; P = 0.069).ConclusionThe mean serum folate level in subjects was significantly lower than the value in controls; but was comparable in subjects on carbamazepine, phenobarbitone, and valproate as monotherapy. There was no correlation between the duration of AED use and mean serum folate levels.

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