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Thermography mapping patterns in temporal lobe epilepsy surgery
BACKGROUND: In several epilepsy etiologies, the macroscopic appearance of the epileptogenic tissue is identical to the normal, which makes it hard to balance between how much cytoreduction or disconnection and brain tissue preservation must be done. A strategy to tackle this situation is by evaluati...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Scientific Scholar
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7110298/ https://www.ncbi.nlm.nih.gov/pubmed/32257556 http://dx.doi.org/10.25259/SNI_549_2019 |
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author | de Font-Réaulx, Enrique Lluch, Javier Terrazo López, Ramón López Bialik, Paul Shkurovich Corona, Miguel Ángel Collado López, Luis Guillermo Díaz Tirado, Emilio Arch Navarrete, Ernesto Ramírez Astiazarán, Adalberto González |
author_facet | de Font-Réaulx, Enrique Lluch, Javier Terrazo López, Ramón López Bialik, Paul Shkurovich Corona, Miguel Ángel Collado López, Luis Guillermo Díaz Tirado, Emilio Arch Navarrete, Ernesto Ramírez Astiazarán, Adalberto González |
author_sort | de Font-Réaulx, Enrique |
collection | PubMed |
description | BACKGROUND: In several epilepsy etiologies, the macroscopic appearance of the epileptogenic tissue is identical to the normal, which makes it hard to balance between how much cytoreduction or disconnection and brain tissue preservation must be done. A strategy to tackle this situation is by evaluating brain metabolism during surgery using infrared thermography mapping (IrTM). METHODS: In 12 epilepsy surgery cases that involved the temporal lobe, we correlated the IrTM, electrocorticography, and neuropathology results. RESULTS: Irritative zones (IZ) had a lower temperature in comparison to the surrounding cortex with normal electric activity (difference in temperature (ΔT) from 1.2 to 7.1, mean 3.40°C standard deviation ± 1.61). The coldest zones correlated exactly with IZ in 9/10 cortical dysplasia (CD) cases. In case 3, the coldest area was at 1 cm away from the IZ. In 10/10 dysplasia cases (cases 1–4, 6–11), there was a radial heating pattern originating from the coldest cortical point. In 2/2 neoplasia cases, the temporal lobe cortical temperature was more homogeneous than in the CD cases, with no radial heating pattern, and there were no IZ detected. In case 8, we found the coldest IrTM recording in the hippocampus, which correlated to the maximal irritative activity recorded by strip electrodes. The ΔT is inversely proportional to epilepsy chronicity. CONCLUSION: IrTM could be useful in detecting hypothermic IZ in CD cases. As the ΔT is inversely proportional to epilepsy chronicity, this variable could affect the metabolic thermic patterns of the human brain. |
format | Online Article Text |
id | pubmed-7110298 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Scientific Scholar |
record_format | MEDLINE/PubMed |
spelling | pubmed-71102982020-04-01 Thermography mapping patterns in temporal lobe epilepsy surgery de Font-Réaulx, Enrique Lluch, Javier Terrazo López, Ramón López Bialik, Paul Shkurovich Corona, Miguel Ángel Collado López, Luis Guillermo Díaz Tirado, Emilio Arch Navarrete, Ernesto Ramírez Astiazarán, Adalberto González Surg Neurol Int Original Article BACKGROUND: In several epilepsy etiologies, the macroscopic appearance of the epileptogenic tissue is identical to the normal, which makes it hard to balance between how much cytoreduction or disconnection and brain tissue preservation must be done. A strategy to tackle this situation is by evaluating brain metabolism during surgery using infrared thermography mapping (IrTM). METHODS: In 12 epilepsy surgery cases that involved the temporal lobe, we correlated the IrTM, electrocorticography, and neuropathology results. RESULTS: Irritative zones (IZ) had a lower temperature in comparison to the surrounding cortex with normal electric activity (difference in temperature (ΔT) from 1.2 to 7.1, mean 3.40°C standard deviation ± 1.61). The coldest zones correlated exactly with IZ in 9/10 cortical dysplasia (CD) cases. In case 3, the coldest area was at 1 cm away from the IZ. In 10/10 dysplasia cases (cases 1–4, 6–11), there was a radial heating pattern originating from the coldest cortical point. In 2/2 neoplasia cases, the temporal lobe cortical temperature was more homogeneous than in the CD cases, with no radial heating pattern, and there were no IZ detected. In case 8, we found the coldest IrTM recording in the hippocampus, which correlated to the maximal irritative activity recorded by strip electrodes. The ΔT is inversely proportional to epilepsy chronicity. CONCLUSION: IrTM could be useful in detecting hypothermic IZ in CD cases. As the ΔT is inversely proportional to epilepsy chronicity, this variable could affect the metabolic thermic patterns of the human brain. Scientific Scholar 2020-02-28 /pmc/articles/PMC7110298/ /pubmed/32257556 http://dx.doi.org/10.25259/SNI_549_2019 Text en Copyright: © 2020 Surgical Neurology International http://creativecommons.org/licenses/by-nc-sa/4.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-Share Alike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms. |
spellingShingle | Original Article de Font-Réaulx, Enrique Lluch, Javier Terrazo López, Ramón López Bialik, Paul Shkurovich Corona, Miguel Ángel Collado López, Luis Guillermo Díaz Tirado, Emilio Arch Navarrete, Ernesto Ramírez Astiazarán, Adalberto González Thermography mapping patterns in temporal lobe epilepsy surgery |
title | Thermography mapping patterns in temporal lobe epilepsy surgery |
title_full | Thermography mapping patterns in temporal lobe epilepsy surgery |
title_fullStr | Thermography mapping patterns in temporal lobe epilepsy surgery |
title_full_unstemmed | Thermography mapping patterns in temporal lobe epilepsy surgery |
title_short | Thermography mapping patterns in temporal lobe epilepsy surgery |
title_sort | thermography mapping patterns in temporal lobe epilepsy surgery |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7110298/ https://www.ncbi.nlm.nih.gov/pubmed/32257556 http://dx.doi.org/10.25259/SNI_549_2019 |
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