Prolonged or recurrent acute seizures after pediatric arterial ischemic stroke are associated with increasing...

Area of Science:

• Neurology
• Pediatric Neurology
• Epileptology

Background:

• Pediatric stroke is a significant cause of acquired brain injury in children.
• Epilepsy is a common complication following pediatric stroke, impacting long-term outcomes.
• Identifying risk factors for epilepsy post-stroke is crucial for timely intervention.

Purpose of the Study:

• To investigate the incidence and predictors of epilepsy in children following arterial ischemic stroke.
• To determine the relationship between acute seizure characteristics and the development of active epilepsy within one year.

Main Methods:

• A prospective cohort study involving 114 children (birth-18 years) with arterial ischemic stroke across 21 centers.
• Patients were followed for one year to identify acute seizures (within 7 days) and active epilepsy (unprovoked remote seizures with anticonvulsant maintenance at 1 year).
• Logistic regression analysis was used to identify predictors of epilepsy.

Main Results:

• Among 109 patients with 1-year follow-up, 10% developed active epilepsy.
• Younger age at stroke onset was associated with a higher risk of epilepsy (OR 0.8 per year younger).
• Prolonged ( >5 minutes) or recurrent acute seizures significantly increased epilepsy risk, with >10 acute seizures conferring a 30-fold increased risk (OR 30).

Conclusions:

• Pediatric stroke survivors, especially neonates and young children, are at high risk for developing epilepsy.
• The frequency and duration of acute seizures following stroke are critical dose-dependent predictors of subsequent epilepsy.
• Early identification and management of acute seizures may be vital in mitigating epilepsy risk in pediatric stroke survivors.