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Predictors of seizure occurrence in children undergoing pre-surgical monitoring

Chellamani Harini1, Kanwaljit Singh, Masanori Takeoka

  • 1Division of Clinical Neurophysiology, Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States. chellamani.harini@childrens.harvard.edu

Seizure
|June 4, 2013
PubMed

Insights

Home seizure frequency is the key predictor of seizure occurrence during long-term monitoring (LTM) for pediatric epilepsy surgery. Patients with lower home seizure rates may not capture enough events for optimal pre-surgical evaluation.

Area of Science:

  • Pediatric Neurology
  • Epileptology
  • Clinical Neurophysiology

Background:

  • Long-term monitoring (LTM) is crucial for seizure localization in children with refractory epilepsy.
  • Pre-surgical evaluation aims to identify seizure origins for effective surgical intervention.

Purpose of the Study:

  • To identify factors predicting the occurrence of single or multiple seizures in children undergoing LTM for pre-surgical monitoring.
  • To evaluate the relationship between home seizure frequency and seizure occurrence during LTM.

Main Methods:

  • Retrospective chart review of 92 children (40 females) undergoing LTM for pre-surgical workup.
  • Logistic regression and survival analysis to assess predictors of seizure occurrence.
  • Categorization of home seizure frequency into low, medium, and high groups.

Main Results:

  • Home seizure frequency was the sole significant predictor of single/multiple seizure occurrence during LTM.
  • Higher home seizure frequency correlated with increased odds of capturing ≥3 seizures during monitoring.
  • Patients with low home seizure frequency had a longer time to first seizure and were at risk of not capturing sufficient events.

Conclusions:

  • Home seizure frequency is the primary factor influencing seizure capture during LTM for pediatric epilepsy surgery.
  • Children with low home seizure rates may require extended monitoring to achieve optimal pre-surgical evaluation.
  • LTM is effective, but seizure capture is influenced by pre-admission seizure frequency.
Abstract

Keywords:
Pre-surgical monitoringPredictors of seizure occurrenceSeizure frequency

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