Under-reporting of nocturnal seizures using video-based home monitoring: a case study on the evaluation of the effect of vagal nerve stimulation.

A challenge in treating epilepsy is the accurate documentation of seizure frequency, which is needed in order to assess the benefits of ongoing treatment. We present a 17-year-old girl who underwent video-based monitoring in order to establish an accurate seizure count before and after the implantation of a vagus nerve stimulator to treat refractory epilepsy. The results show a reduction in disabling seizure types after vagus nerve stimulator implantation and highlight the inconsistencies between the reported and actual seizure count in this patient.