Related Experiment Video
Updated: Oct 5, 2025
Laparoscopic Choledochal Cyst Excision and Roux-en-Y Choledochojejunostomy in Adults
Published on: February 28, 2025
Complete callosotomy in children with drop attacks; A retrospective monocentric study of 50 patients
Sarah Ferrand-Sorbets1, Martine Fohlen1, Pierre Bourdillon2
1Pediatric Neurosurgery Department, Rothschild Foundation Hospital, Paris, France.
Insights
Corpus callosotomy effectively treats drug-resistant epilepsy drop attacks in children. Tonic seizures predict a better outcome, but most patients benefit, regardless of other factors.
Area of Science:
- Neurology
- Neurosurgery
- Pediatric Epilepsy
Background:
- Drug-resistant epilepsy significantly impacts children's quality of life, often causing debilitating drop attacks.
- Corpus callosotomy is a palliative surgical option for severe, intractable epilepsy cases.
Purpose of the Study:
- To identify clinical markers predicting successful outcomes for drop attacks and other seizures after corpus callosotomy.
- To evaluate the safety and efficacy of complete corpus callosotomy in pediatric patients.
Main Methods:
- Retrospective analysis of pediatric patients undergoing complete corpus callosotomy (1998-2019).
- Evaluation of pre- and postoperative neurological, cognitive, radiological, and EEG data.
- Statistical correlation analysis to identify predictive factors for seizure outcome.
Main Results:
- 82% of 50 pediatric patients experienced favorable outcomes, with 58% becoming free of drop attacks.
- Tonic seizures were significantly associated with a higher probability of being drop attack-free (p=0.017).
- No significant trends were found regarding age, etiology, or developmental level; complications were minimal.
Conclusions:
- Complete corpus callosotomy is a safe and effective palliative treatment for drug-resistant epileptic drop attacks in children.
- Tonic seizures are a positive prognostic indicator, but lack of other factors suggests broad patient eligibility.
- The procedure offers significant quality of life improvement for pediatric epilepsy patients.
Purpose:
Corpus callosotomy is a palliative surgical procedure for patients with drug-resistant epilepsy and suffering from drop attacks, which are a source of major deterioration in quality of life and can be responsible for severe traumatic injury. The objective of this study is to identify clinical markers that would predict a better outcome in terms of drop attacks and other types of epileptic seizures.
Methods:
We reviewed a retrospective series of children who underwent complete corpus callosotomy at our institution, between January 1998 and February 2019. We analyzed the neurological and cognitive pre- and postoperative status, radiological datas, and electroencephalography (EEG) monitoring data.
Results:
Fifty children underwent a complete callosotomy at a mean age of 7.5 years. The median postoperative follow-up was 42.5 months. Forty-one patients (82%) had a favorable outcome, 29 (58%) of them becoming totally free of drop attacks. Statistical analysis of correlation between outcome of drop attacks and the characteristics of the patients did not find any trend in terms of age, etiology or developmental level. Regarding seizure types, the probability of being drop attack-free was significantly higher in case of tonic seizures (p = 0.017). Neurological complications occurred in two patients. A transient disconnection syndrome was observed in one child with good preoperative cognitive level. The mean hospital stay was short (5 -10 days).
Conclusion:
The results of this large monocentric case series with a long follow-up indicate that total callosotomy is a safe and effective treatment for children with drug-resistant epileptic drop attacks. Aside from a better surgical outcome for children with tonic seizures causing the falls, the lack of any other significant prognostic factor implies that no patient should a priori be excluded from this palliative surgical indication.
