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Acta Neurológica Colombiana
versión impresa ISSN 0120-8748versión On-line ISSN 2422-4022
Resumen
GUTIERREZ-ALVAREZ, Cristian et al. Episodic memory after temporal lobe epilepsy surgery. Acta Neurol Colomb. [online]. 2021, vol.37, n.3, pp.110-118. Epub 21-Oct-2021. ISSN 0120-8748. https://doi.org/10.22379/24224022376.
INTRODUCTION:
Resective surgery of the anterior temporal lobe with amygdalohippocampectomy is an effective treatment for drug-resistant epilepsy of the temporal lobe with hippocampal sclerosis. However, this procedure carries a risk of post-operative episodic verbal and nonverbal memory impairment depending on the hemispheric dominance for memory and language.
OBJECTIVE:
To explore the outcome of episodic memory after resective surgery by means of anterior temporal lobectomy with amygdalohippocampectomy.
METHODS:
Verbal and non-verbal episodic memory was retrospectively analyzed by neuropsychological tests of 51 consecutive patients undergoing anterior temporal lobectomy with amygadalohyppocampectomy on the left and right sides. All patients underwent preoperative brain MRI, video electroencephalography, and neuropsychological evaluations. 12 patients (24%) did not undergo the Wada test.
RESULTS:
There was a decrease in postoperative verbal episodic memory with differences compared to preoperative, in the text II subtest recall of the Wechsler III memory scale (p = 0.035). The result in visual episodic memory remained the same, there were no differences in the standard temporal lobectomy group.
CONCLUSION:
Anterior temporal lobectomy plus left amygadalohyppocampectomy slightly affects the performance of postoperative episodic memory, which is clinically not significant in patients with drug-resistant mesial temporal lobe epilepsy.
Palabras clave : Epilepsy, Temporal Lobe; Anterior temporal lobectomy; Drug-resistant epilepsy; Memory, episodic; Drug Resistant Epilepsy; Wechsler Memory Scale (MeSH).