Cognitive functions were examined before operation and 4 weeks after operation with respect to pathology in 40 patients who underwent temporal lobectomy for epilepsy. Hippocampal sclerosis was associated with febrile convulsions, an earlier onset of regular seizures, poorer preoperative intelligence and with a tendency towards greater cognitive improvement across the operation than found in patients with tumour-like malformations or non-specific pathology. Damage to the amygdala was associated with a poorer outcome for the retention in memory of verbal and non-verbal material. The absence of any specific abnormality in the resected tissue was not associated with a poorer cognitive outcome 4 weeks after the operation.
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http://dx.doi.org/10.1136/jnnp.50.2.167 | DOI Listing |
J Neurosurg
January 2025
1Service de Neurochirurgie, Université de Lorraine, CHRU-Nancy.
Objective: Recent voxel-based lesion symptom mapping (VLSM) studies have identified a critical region for picture naming, located 3.4 to 6.1 cm from the temporal pole.
View Article and Find Full Text PDFNeurosurg Rev
January 2025
Department of neurosurgery, Faculty of Medicine, Mansoura University, Mansoura, Egypt.
Epilepsy is a common neurological disease that is treated with medications; however, patients with drug-resistant epilepsy, commonly intractable temporal lobe epilepsy, tend to have better control with surgical treatment. While the mainstay of surgical treatment is anterior temporal lobectomy, it carries risk of potential adverse effects hence minimally invasive techniques are now being used as an alternative to open surgery. This systematic review and meta-analysis compare the efficacy and safety of three of the most used techniques: laser interstitial thermal therapy (LITT), radiofrequency ablation (RFA) and stereotactic radiosurgery (SRS).
View Article and Find Full Text PDFEpilepsia
January 2025
Department of Neurology, The University of Alabama at Birmingham, Birmingham, Alabama, USA.
Objective: Temporal encephaloceles (TEs) are seen in patients with drug-resistant epilepsy (DRE); yet they are also common incidental findings. Variability in institutional pre-surgical epilepsy practices and interpretation of epileptogenic network localization contributes to bias in existing epilepsy cohorts with TE, and therefore the relevance of TE in DRE remains controversial. We sought to estimate effect sizes and sample sizes necessary to demonstrate clinically relevant improvements in seizure outcome with different surgical approaches.
View Article and Find Full Text PDFNat Commun
January 2025
Department of Clinical and Experimental Epilepsy, Queen Square Institute of Neurology, UCL, London, WC1N 3BG, UK.
Approximately 40% of individuals undergoing anterior temporal lobe resection for temporal lobe epilepsy experience episodic memory decline. There has been a focus on early memory network changes; longer-term plasticity and its impact on memory function are unclear. Our study investigates neural mechanisms of memory recovery and network plasticity over nearly a decade post-surgery.
View Article and Find Full Text PDFJ Clin Med
December 2024
Degenerative and Chronic Diseases of the Faculty of Health Sciences (FGW), University Potsdam, 14469 Potsdam, Germany.
: About 65 million people worldwide are affected by epilepsy, with temporal lobe epilepsy being the most common type resistant to drugs and often requiring surgical treatment. Although open surgical approaches, such as temporal lobectomy, have been the method of choice for decades, minimally invasive MRgLITT has demonstrated promising results. However, it remains unknown whether patients who underwent one of these two approaches would show better performance on vestibulo-spatial tasks.
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