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Author Spotlight: Studying Clinical Characters and Epilepsy Outcomes After Frontal Disconnection in Patients with MOGHE
Published on: August 16, 2024
Total posterior quadrant disconnection for drug-resistant epilepsy in children
1Pediatric Epilepsy Center, Peking University First Hospital, Beijing, China.
Insights
Total posterior quadrant disconnection (PQD) surgery effectively controlled seizures in 70.5% of pediatric patients with drug-resistant epilepsy (DRE). Postoperative outcomes were favorable, with no deaths or severe complications, and developmental improvements were noted.
Area of Science:
- Pediatric Neurosurgery
- Epilepsy Surgery
- Developmental Neuroscience
Background:
- Drug-resistant epilepsy (DRE) in children poses significant challenges to neurological development and quality of life.
- Surgical interventions like posterior quadrant disconnection (PQD) are considered for intractable DRE with structural abnormalities.
- Limited data exists on the efficacy and developmental impact of total PQD in pediatric populations.
Purpose of the Study:
- To evaluate seizure outcomes following total PQD in children with DRE.
- To identify prognostic factors influencing seizure control and developmental trajectories post-surgery.
- To assess changes in developmental levels after total PQD surgery.
Main Methods:
- Retrospective analysis of clinical data from 61 pediatric patients undergoing total PQD for DRE.
- Assessment of seizure outcomes using Engel's classification.
- Evaluation of developmental changes using Griffiths Mental Development Scales-China (GMDS-C) pre- and post-surgery.
- Correlation analysis of preoperative data, surgical factors, and developmental outcomes.
Main Results:
- 70.5% of pediatric patients achieved seizure freedom postoperatively.
- Univariate and multivariate analyses identified interictal electroencephalogram (EEG) and acute postoperative seizures (APOS) as significant predictors of seizure prognosis.
- Significant correlations were found between preoperative developmental levels and epilepsy characteristics (duration, frequency, EEG, FDG-PET).
- Postoperative GMDS-C scores improved, while developmental quotients remained stable.
Conclusions:
- Total PQD surgery is an effective treatment for pediatric DRE with structural posterior quadrant abnormalities, leading to seizure control without neurological deterioration.
- Interictal EEG abnormalities and APOS are important prognostic indicators but not absolute contraindications for surgery.
- Thorough preoperative assessment and timely surgical intervention are crucial for optimizing outcomes in pediatric epilepsy surgery.
Objective:
To assess seizure outcomes, prognostic factors, and developmental changes in children undergoing total posterior quadrant disconnection (PQD) for drug-resistant epilepsy (DRE).
Methods:
We conducted a retrospective analysis of the clinical data of children with DRE who underwent total PQD surgery. The study focused on Engel's classification for seizure outcomes, exploring correlation of preoperative data and surgical effectiveness, and predictors of seizure prognosis. It involved a comparative analysis of developmental levels pre- and 3 months postoperatively using Griffiths Mental Development Scales-China (GMDS-C), and the correlation between clinical characteristics and GMDS-C results.
Results:
Out of 61 pediatric patients, 70.5% showed no seizure recurrence postoperatively. In the univariate analysis, interictal electroencephalogram (EEG), magnetic resonance imaging (MRI), fluorodeoxyglucose positron emission tomography (FDG-PET), and acute postoperative seizure (APOS) were significantly related to surgical prognosis. In multivariate analysis, interictal EEG and APOS were identified as predictors of seizure prognosis. Survival analysis indicated significant associations between MRI, interictal EEG, FDG-PET, APOS and postoperative seizure occurrence. Preoperative GMDS-C levels were significantly correlated with epilepsy duration, seizure frequency, interictal EEG, and FDG-PET. GMDS-C scores improved postoperatively, while developmental quotients remained stable.
Significance:
For patients with structural abnormalities in the entire posterior quadrant, thorough preoperative assessment and timely total PQD surgery can effectively control seizures without causing neurological development deterioration. APOS and interictal EEG abnormalities beyond the posterior quadrant are predictors for seizure prognosis but should not be deemed contraindications for surgery.
Plain Language Summary:
Due to lack of analysis on pediatric total PQD cases, 61 pediatric patients who underwent total PQD surgery were retrospectively enrolled. Seizure and development results were collected and analyzed as dependent variables. The study found that 70.5% of patients were seizure-free and showed development improvement, with no deaths or severe complications reported. Prognosis predictors included APOS and interictal EEG abnormalities beyond the posterior quadrant.
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