Frequency of antiepileptic drugs and response change in pediatric patients receiving 2 or more antiepileptic drugs

Objectives: To investigate the frequency of changes in antiepileptic drugs (AEDs) use, as well as concomitant changes in the degree of seizure control in pediatric patients, who are receiving 2 or more AEDs. Methods: A prospective follow-up study at Jordan University Hospital's pediatric neurology clinics was conducted on epileptic pediatric patients receiving at least 2 AEDs between December 2013 and April 2014. Patients were followed for 12 months. Results: A total of 82 patients were included, with a mean age of 7.2 +/- 4.7 years. The mean number of AEDs received by patients at enrollment was 2.4 +/- 0.6, and 2.5 +/- 0.7 after follow-up. Most patients (63.4%) experienced no change in seizure control, and the majority reported at least one adverse drug reaction. Most patients received lower doses than recommended, both at the beginning and end of the study. During the year, only 3 patients (4%) were eligible for dose tapering, which would then be converted to monotherapy. Follow-up appointments average was 4.2 +/- 2.9 visits/patients in one year. The frequency of medication changes and dose adjustment was very low, about one-third (29.3%) of patients requiring no change in AEDs during any follow-up visits. Conclusion: During the one year follow-up study, most patients on polytherapy maintained their level of response to the AEDs, with minimal changes in their regimen despite frequent follow-up visits. Only a small percent could be converted to AEDs monotherapy.