New Study Identifies Risk Factors for Postoperative Seizures in Pediatric Brain Tumor Patients

A retrospective study on pediatric patients with brain tumors who underwent craniotomies has identified several risk factors for new-onset postoperative seizures. The study, conducted at the Princess Maxima Center for Pediatric Oncology, found that supratentorial tumor localization, hyponatremia, and age younger than 1 year were significant risk factors for seizures. The researchers analyzed data from 306 cases and found that 7.8% of patients experienced new-onset postoperative seizures, with 4.2% experiencing early seizures within one week. The study's findings highlight the need for meticulous monitoring of postoperative sodium levels and noninvasive epilepsy monitoring after supratentorial tumor resection in infants below the age of 1 year.

Key Takeaways:

• The incidence of new-onset postoperative seizures in pediatric patients with brain tumors was 7.8%, with 4.2% experiencing early seizures within one week.
• Supratentorial tumor localization, hyponatremia, and age younger than 1 year were identified as significant risk factors for seizures.
• Multivariate analysis identified these risk factors as independent predictors of seizure outcomes.
• Researchers recommend meticulous monitoring of postoperative sodium levels and noninvasive epilepsy monitoring after supratentorial tumor resection in infants below the age of 1 year.
• Future prospective studies are needed to explore the effectiveness of administering perioperative prophylactic antiepileptic drugs (ASMs) in this specific subset of the pediatric population.

Statistics:

• 306 cases were analyzed in the study.
• 7.8% of patients experienced new-onset postoperative seizures.
• 4.2% of patients experienced early seizures within one week.
• 3 patients developed status epilepticus.

Sources:

• Identifying Risk Factors for New-Onset Postoperative Seizures in Pediatric Brain Tumor Patients: A Comprehensive Retrospective Analysis. Pediatric Neurosurgery, 2025:1-11.
• NewsRx. Study Findings from Princess Maxima Center for Pediatric Oncology Provide New Insights into Brain Cancer (Identifying Risk Factors for New-Onset Postoperative Seizures in Pediatric Brain Tumor Patients: A Comprehensive Retrospective Analysis). Pediatrics Week. November 1, 2025; p 2239.