The authors report 50 cases with epileptic seizures in 365 cases of sporadic encephalitis.The incidence is 13.7%.It is related to patients’age.The younger the patients

the higher the incide- nce.70% presents generalized seizures

while 30% is focal in form

the latter can be bilateral or shift from one side to the other

indicating diffuse cerebral lesions.66% has other neuro-psy- chiatric manifestations of sporadic encephalitis before epileptic seizures

and the diagnosis is not difficult;but in the remainder

epleptic seizures can be the first symptom or there are only hea- dache and weakness before seizures.Therefore

other symptoms and signs of sporadic encepha- litis

such as mental abnormalities

disturbance in consciousness

signs of diffuse involvement of contral nervous system and abnormal EEG should be observed in patients with generalized or focal seizures.The epileptic seizures can always be controlled by antiepileptics in addition to general treatment in this disease.After the improvement of patients’condition and control of the seizures

such circumscribed seizures in sporadic encephalitis dose not need prolonged antiepile- ptic medication.Epileptic seizures

even status epilepticus

have no obvious influence on progno- sis.The principal prognostic factor is the degree of disturbance of consciousness.