The Determiners of Temporal Lobe Epilepsy Surgery Outcome in a Developing Country
Article Type:
Research/Original Article (دارای رتبه معتبر)

Epilepsy surgery has become a successful treatment option for patients with drug-resistant epilepsies.


This study aimed to assess temporal lobe epilepsy (TLE) surgery outcome and its association with epilepsy duration, the presence of pre-surgical generalized tonic-clonic seizure (GTCS), and brain MRI findings.

Materials & Methods

This retrospective study was performed from 2016 to 2020 at Loghman-Hakim Hospital, Tehran, Iran. The patients’ demographic data, epilepsy type, duration, frequency, brain image findings, the selected surgical approaches, and histopathological findings were collected. The post-operative seizure outcome was expressed one year according to the proposed International League Against Epilepsy (ILAE) classification system. The independent sample t-test, chi-square, and one-way analysis of variance were applied to analyze the differences between variables in terms of quantitative and categorical data.


A total number of 69 TLE surgeries were enrolled in our study. No differences were found in the surgical outcome base on the ILAE classification system of patients with lesional vs non-lesional MRIs (P=0.834). In patients with mesial temporal sclerosis, no correlation was found between the surgical approaches including selective amygdalohippocampectomy, anterior temporal lobectomy, and post-operative seizure outcome (P=0.142). Seven patients (10.1%) developed post-operative functional seizures.


In our study, the epilepsy duration and the presence of GTCSs before surgery had no effect on the surgery outcome. In patients with mesial temporal sclerosis, amygdalohippocampectomy, and anterior temporal lobectomy did not confer different surgical outcomes. TLE patients with normal MRI showed similar surgical outcomes as lesional patients. A significantly high proportion of our patients developed functional seizures, postoperatively

Caspian Journal of Neurological Sciences, Volume:9 Issue: 32, Jan 2023
22 to 29  
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