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Updated: Jun 13, 2026
Anteromesial Temporal Lobectomy for Medically Intractable Temporal Lobe Epilepsy: An Operative Study
Published on: August 15, 2025
Improved outcomes in pediatric epilepsy surgery: the UCLA experience, 1986-2008
M Hemb1, T R Velasco, M S Parnes
1Reed Neurological Research Center, 710 Westwood Plaza, Room 2123, Los Angeles, CA 90095-1769, USA.
Insights
Pediatric epilepsy surgery outcomes improved significantly over time, with more patients achieving seizure freedom and fewer complications in recent years. Advances in surgical techniques and clinical practices likely contributed to these enhanced results.
Area of Science:
- Neurosurgery
- Pediatric Neurology
- Epileptology
Background:
- Refractory epilepsy in children is a significant clinical challenge.
- Epilepsy neurosurgery offers a treatment option for intractable cases.
- Evaluating temporal trends in surgical outcomes is crucial for practice improvement.
Purpose of the Study:
- To determine if outcomes in pediatric epilepsy neurosurgery have improved over time.
- To compare surgical outcomes between two distinct 11-year periods.
Main Methods:
- Retrospective comparison of pediatric epilepsy surgery patients from two eras: 1986-1997 (pre-1997) and 1998-2008 (post-1997).
- Analysis of presurgical and postsurgical variables, including seizure frequency, age at onset/surgery, resection type, and complications.
- Statistical comparison of seizure freedom rates and medication status at various time points post-surgery.
Main Results:
- The post-1997 group showed more focal resections and higher rates of tuberous sclerosis complex, with fewer nonspecific gliosis cases.
- Seizure-free rates at 0.5, 1, 2, and 5 years post-surgery were significantly higher in the post-1997 series.
- Fewer complications and reoperations were observed in the post-1997 group, with less aggressive medication withdrawal predicting seizure freedom.
Conclusions:
- Improvements in surgical technology, procedures, and clinical practice have led to enhanced seizure-free outcomes in pediatric epilepsy surgery.
- Clearer lesion identification and complete resection are associated with better long-term outcomes.
- The findings support the continued refinement of surgical strategies for pediatric refractory epilepsy.
Objective:
Epilepsy neurosurgery is a treatment option for children with refractory epilepsy. Our aim was to determine if outcomes improved over time.
Methods:
Pediatric epilepsy surgery patients operated in the first 11 years (1986-1997; pre-1997) were compared with the second 11 years (1998-2008; post-1997) for differences in presurgical and postsurgical variables.
Results:
Despite similarities in seizure frequency, age at seizure onset, and age at surgery, the post-1997 series had more lobar/focal and fewer multilobar resections, and more patients with tuberous sclerosis complex and fewer cases of nonspecific gliosis compared with the pre-1997 group. Fewer cases had intracranial EEG studies in the post-1997 (0.8%) compared with the pre-1997 group (9%). Compared with the pre-1997 group, the post-1997 series had more seizure-free patients at 0.5 (83%, +16%), 1 (81%, +18%), 2 (77%, +19%), and 5 (74%, +29%) years, and more seizure-free patients were on medications at 0.5 (97%, +6%), 1 (88%, +9%), and 2 (76%, +29%), but not 5 (64%, +8%) years after surgery. There were fewer complications and reoperations in the post-1997 series compared with the pre-1997 group. Logistic regression identified post-1997 series and less aggressive medication withdrawal as the main predictors of becoming seizure-free 2 years after surgery.
Conclusions:
Improved technology and surgical procedures along with changes in clinical practice were likely factors linked with enhanced and sustained seizure-free outcomes in the post-1997 series. These findings support the general concept that clearer identification of lesions and complete resection are linked with better outcomes in pediatric epilepsy surgery patients.
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