• Liam D Ferreira, Mohammad Tabaeizadeh, and Zulfi Haneef.
• Department of Neurology, Baylor College of Medicine, Houston, Texas, USA.
• J. Neurotrauma. 2024 Feb 1; 41 (3-4): 319330319-330.

AbstractEpilepsy surgery provides excellent benefits in post-traumatic epilepsy of the temporal lobe (PTE-TL), but outcomes relative to non-traumatic epilepsy of the temporal lobe (NTE-TL) are less favorable. Large well-designed studies are recommended to further clarify the role of epilepsy surgery in PTE. It is unclear whether epilepsy surgery outcomes in PTE are as robust as described for drug resistant epilepsy (DRE) in general. Prior outcome studies in PTE are limited by small numbers, lack of a control group, or both. We performed a meta-analysis of studies in temporal lobe epilepsy (TLE) to evaluate post-surgical outcomes in those with PTE-TL and compare outcomes to those with NTE-TL. PubMed, EMBASE, and Web of Science databases were queried for studies reporting epilepsy surgery outcomes separately for PTE-TL and NTE-TL. Outcomes were divided into favorable (Engel Class I) or unfavorable (Engel Class II-IV) for comparison. Meta-analyses were performed to evaluate: 1) the proportion of Class I outcomes following epilepsy surgery in PTE-TL; and 2) calculate the odds of Class I surgical outcomes in PTE-TL compared with NTE-TL. Of 3669 articles that reported surgical outcomes in epilepsy, nine studies (n = 886) were identified that reported outcomes for both PTE-TL (n = 219) and NTE-TL (n = 667). The weighted proportion of favorable outcomes (Engel Class I) were high for both PTE-TL (70.1%, 95% CI 61.9%-78.3%) and NTE-TL (75.2%, 95% CI 69.4%-80.2%). Patients with PTE-TL were at greater risk of unfavorable (Engel Class II-IV) outcomes (relative risk 1.36, 95% CI 1.04-1.78) compared with NTE-TL.

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