Auditory event related potentials relate with the clinical progression in idiopathic generalized epilepsy

Auditory event related potential (ERP) was studied in 60 patients with idiopathic generalized epilepsy and 33 age and sex matched healthy subjects. Thirty nine patients came to the control three months later and were reassessed. All auditory evoked potential latencies were prolonged in epileptics compared to those of healthy subjects. Multiple drug using or history of more than 100 seizures was associated with prolonged P3 latency. History of status epilepticus was observed together with prolongation of N2 and P3 latencies. Patients using their antiepileptic drugs more properly after the first control showed shortened P3 latency in the second control.