Journal of Neurosurgery: Pediatrics, Volume 0, Issue 0, Page 1-5, Ahead of Print.
Object Temporal lobe epilepsy is an uncommon clinical syndrome in the pediatric population. The most common underlying pathologies include low-grade gliomas, cortical dysplasia, and, less commonly, hippocampal sclerosis (HS). There is a paucity of data on neuropsychological and seizure-free outcomes in these patients after temporal lobectomy. In this study, the authors reviewed their seizure-free and neuropsychological outcomes after temporal lobectomy for pediatric HS. Methods The authors retrospectively reviewed the medical records of pediatric patients with HS who underwent anterior temporal lobectomy and amygdalohippocampectomy between 1998 and 2011 at the Cleveland Clinic. Results of neuropsychological assessment before and after surgery and seizure-free outcome at last follow-up were obtained. Results Forty-five patients met the inclusion criteria. Thirty-four (76%) patients had pathology of HS alone and 10 (22%) had HS and cortical dysplasia. The mean duration of follow-up was 60.2 months. Eighty-four percent of patients had postoperative Engel Class I or II outcomes. Neuropsychological outcomes remained unchanged or minimally improved postoperatively. Conclusions Seizure-free outcomes in pediatric HS are similar to historical rates in adult HS. Neuropsychological assessments remain stable after temporal lobectomy. Standard temporal lobectomy should be considered in pediatric patients with medically intractable epilepsy secondary to HS.
Object Temporal lobe epilepsy is an uncommon clinical syndrome in the pediatric population. The most common underlying pathologies include low-grade gliomas, cortical dysplasia, and, less commonly, hippocampal sclerosis (HS). There is a paucity of data on neuropsychological and seizure-free outcomes in these patients after temporal lobectomy. In this study, the authors reviewed their seizure-free and neuropsychological outcomes after temporal lobectomy for pediatric HS. Methods The authors retrospectively reviewed the medical records of pediatric patients with HS who underwent anterior temporal lobectomy and amygdalohippocampectomy between 1998 and 2011 at the Cleveland Clinic. Results of neuropsychological assessment before and after surgery and seizure-free outcome at last follow-up were obtained. Results Forty-five patients met the inclusion criteria. Thirty-four (76%) patients had pathology of HS alone and 10 (22%) had HS and cortical dysplasia. The mean duration of follow-up was 60.2 months. Eighty-four percent of patients had postoperative Engel Class I or II outcomes. Neuropsychological outcomes remained unchanged or minimally improved postoperatively. Conclusions Seizure-free outcomes in pediatric HS are similar to historical rates in adult HS. Neuropsychological assessments remain stable after temporal lobectomy. Standard temporal lobectomy should be considered in pediatric patients with medically intractable epilepsy secondary to HS.
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