The second study on the slide was based on a single-centre surveillance system that was based on hospital admissions, referral for EEG, neurology, or epilepsy clinics for patients who had recently identified seizures.2 Patients were followed up at 6-month intervals for 2 years after the first seizure, and yearly thereafter.2 Of the 204 patients included in the analysis, 63 experienced a second seizure, and 41 a third seizure during the study period.2
References:
1. Berg AT. Risk of recurrence after a first unprovoked seizure. Epilepsia 2008; 49 Suppl 1: 13‒18.
2. Hauser WA, Rich SS, Lee R-J, et al. Risk of recurrent seizures after two unprovoked seizures. N Engl J Med 1998; 338 (7): 429‒434.