Relation of Structural and Functional Changes in Auditory and Visual Pathways after Temporal Lobe Epilepsy Surgery
| Autor: | Judith González González, Juan E. Bender del Busto, Nelson Quintanal-Cordero, Karla Batista García-Ramo, Rafael Rodríguez Rojas, Lilia Morales-Chacón, Ivette Cabrera-Abreu, Lourdes Lorigados-Pedre, Ricardo Valdés-Llerena, Reinaldo Galvizu Sánchez, Yamila del Carmen Pérez Téllez, Randis Garbey-Fernández, Margarita Minou Báez-Martín, Iván García-Maeso, María Eugenia García-Navarro, Bárbara Estupiñán-Díaz, Celia Alarcón-Calaña |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
genetic structures
visual evoked potentials medicine.medical_treatment lcsh:BF1-990 tractography Development Visual system Article 030218 nuclear medicine & medical imaging Temporal lobe 03 medical and health sciences Behavioral Neuroscience 0302 clinical medicine drug-resistant epilepsy auditory evoked responses Genetics medicine temporal lobectomy Epilepsy surgery Latency (engineering) General Psychology Ecology Evolution Behavior and Systematics Anterior temporal lobectomy business.industry Drug Resistant Epilepsy Visual field lcsh:Psychology connectivity business Neuroscience 030217 neurology & neurosurgery Tractography |
| Zdroj: | Behavioral Sciences, Vol 8, Iss 10, p 92 (2018) Behavioral Sciences Volume 8 Issue 10 |
| Popis: | Auditory and visual pathways may be affected as a consequence of temporal lobe epilepsy surgery because of their anatomical relationships with this structure. The purpose of this paper is to correlate the results of the auditory and visual evoked responses with the parameters of tractography of the visual pathway, and with the state of connectivity between respective thalamic nuclei and primary cortices in both systems after the surgical resection of the epileptogenic zone in drug-resistant epileptic patients. Tractography of visual pathway and anatomical connectivity of auditory and visual thalamus-cortical radiations were evaluated in a sample of eight patients. In general, there was a positive relationship of middle latency response (MLR) latency and length of resection, while a negative correlation was found between MLR latency and the anatomical connection strength and anatomical connection probability of the auditory radiations. In the visual pathway, significant differences between sides were found with respect to the number and length of tracts, which was lower in the operated one. Anatomical connectivity variables and perimetry (visual field defect index) were particularly correlated with the latency of P100 wave which was obtained by quadrant stimulation. These results demonstrate an indirect functional modification of the auditory pathway and a direct traumatic lesion of the visual pathway after anterior temporal lobectomy in patients with drug resistant epilepsy. |
| Databáze: | OpenAIRE |
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