Histopathological reaction in the vestibule after cochlear implantation in Macaca fascicularis.
Cochlear implantation surgery (CI) is considered a safe procedure and is the standard treatment for the auditory rehabilitation in patients with severe-to-profound sensorineural hearing loss. Although the development of minimally traumatic surgical concepts (MTSC) have enabled the preservation of re...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Universidad de Navarra |
| Repositorio: | Dadun. Depósito Académico Digital de la Universidad de Navarra |
| Idioma: | inglés |
| OAI Identifier: | oai:dadun.unav.edu:10171/66558 |
| Acceso en línea: | https://hdl.handle.net/10171/66558 |
| Access Level: | acceso abierto |
| Palabra clave: | Cochlear implantation Histology Saccule Utricle Vestibular organs |
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Histopathological reaction in the vestibule after cochlear implantation in Macaca fascicularis.Manrique-Huarte, R. (Raquel)|||/items/4e0d942c-9492-4896-8995-2d876c7cc3ffGaraycochea-Mendoza-del-Solar, O. (Octavio)|||/items/8d46df1e-ef72-43c2-8256-b63c640ed16dParillis-Troconis, D. (Daniela)|||/items/fea0e29d-403a-4a1a-87d8-98631f6084b5Perez-Fernandez, N. (Nicolás)|||/items/f35b1b73-f2d0-4c4c-9a3f-c496e4dff4d4Manrique-Rodríguez, M.J. (Manuel Jesús)|||/items/18ee81a1-c3af-446f-9915-2c66746019d0Cochlear implantationHistologySacculeUtricleVestibular organsCochlear implantation surgery (CI) is considered a safe procedure and is the standard treatment for the auditory rehabilitation in patients with severe-to-profound sensorineural hearing loss. Although the development of minimally traumatic surgical concepts (MTSC) have enabled the preservation of residual hearing after the implantation, there is scarce literature regarding the vestibular affection following MTCS. The aim of the study is to analyze histopathologic changes in the vestibule after CI in an animal model (Macaca fascicularis). Cochlear implantation was performed successfully in 14 ears following MTCS. They were classified in two groups upon type of electrode array used. Group A (n = 6) with a FLEX 28 electrode array and Group B (n = 8) with HL14 array. A 6-month follow-up was carried out with periodic objective auditory testing. After their sacrifice, histological processing and subsequent analysis was carried out. Intracochlear findings, vestibular presence of fibrosis, obliteration or collapse is analyzed. Saccule and utricle dimensions and neuroepithelium width is measured. Cochlear implantation was performed successfully in all 14 ears through a round window approach. Mean angle of insertion was >270° for group A and 180-270° for group B. In group A auditory deterioration was observed in Mf 1A, Mf2A and Mf5A with histopathological signs of scala tympani ossification, saccule collapse (Mf1A and Mf2A) and cochlear aqueduct obliteration (Mf5A). Besides, signs of endolymphatic sinus dilatation was seen for Mf2B and Mf5A. Regarding group B, no auditory deterioration was observed. Histopathological signs of endolymphatic sinus dilatation were seen in Mf 2B and Mf 8B. In conclusion, the risk of histological damage of the vestibular organs following minimally traumatic surgical concepts and the soft surgery principles is very low. CI surgery is a safe procedure and it can be done preserving the vestibular structures.Dadun. Depósito Académico Digital Universidad de Navarra20232023-06-0720232023-01-0120232023-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10171/66558reponame:Dadun. Depósito Académico Digital de la Universidad de Navarrainstname:Universidad de NavarraInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:dadun.unav.edu:10171/665582026-06-21T12:47:57Z |
| dc.title.none.fl_str_mv |
Histopathological reaction in the vestibule after cochlear implantation in Macaca fascicularis. |
| title |
Histopathological reaction in the vestibule after cochlear implantation in Macaca fascicularis. |
| spellingShingle |
Histopathological reaction in the vestibule after cochlear implantation in Macaca fascicularis. Manrique-Huarte, R. (Raquel)|||/items/4e0d942c-9492-4896-8995-2d876c7cc3ff Cochlear implantation Histology Saccule Utricle Vestibular organs |
| title_short |
Histopathological reaction in the vestibule after cochlear implantation in Macaca fascicularis. |
| title_full |
Histopathological reaction in the vestibule after cochlear implantation in Macaca fascicularis. |
| title_fullStr |
Histopathological reaction in the vestibule after cochlear implantation in Macaca fascicularis. |
| title_full_unstemmed |
Histopathological reaction in the vestibule after cochlear implantation in Macaca fascicularis. |
| title_sort |
Histopathological reaction in the vestibule after cochlear implantation in Macaca fascicularis. |
| dc.creator.none.fl_str_mv |
Manrique-Huarte, R. (Raquel)|||/items/4e0d942c-9492-4896-8995-2d876c7cc3ff Garaycochea-Mendoza-del-Solar, O. (Octavio)|||/items/8d46df1e-ef72-43c2-8256-b63c640ed16d Parillis-Troconis, D. (Daniela)|||/items/fea0e29d-403a-4a1a-87d8-98631f6084b5 Perez-Fernandez, N. (Nicolás)|||/items/f35b1b73-f2d0-4c4c-9a3f-c496e4dff4d4 Manrique-Rodríguez, M.J. (Manuel Jesús)|||/items/18ee81a1-c3af-446f-9915-2c66746019d0 |
| author |
Manrique-Huarte, R. (Raquel)|||/items/4e0d942c-9492-4896-8995-2d876c7cc3ff |
| author_facet |
Manrique-Huarte, R. (Raquel)|||/items/4e0d942c-9492-4896-8995-2d876c7cc3ff Garaycochea-Mendoza-del-Solar, O. (Octavio)|||/items/8d46df1e-ef72-43c2-8256-b63c640ed16d Parillis-Troconis, D. (Daniela)|||/items/fea0e29d-403a-4a1a-87d8-98631f6084b5 Perez-Fernandez, N. (Nicolás)|||/items/f35b1b73-f2d0-4c4c-9a3f-c496e4dff4d4 Manrique-Rodríguez, M.J. (Manuel Jesús)|||/items/18ee81a1-c3af-446f-9915-2c66746019d0 |
| author_role |
author |
| author2 |
Garaycochea-Mendoza-del-Solar, O. (Octavio)|||/items/8d46df1e-ef72-43c2-8256-b63c640ed16d Parillis-Troconis, D. (Daniela)|||/items/fea0e29d-403a-4a1a-87d8-98631f6084b5 Perez-Fernandez, N. (Nicolás)|||/items/f35b1b73-f2d0-4c4c-9a3f-c496e4dff4d4 Manrique-Rodríguez, M.J. (Manuel Jesús)|||/items/18ee81a1-c3af-446f-9915-2c66746019d0 |
| author2_role |
author author author author |
| dc.contributor.none.fl_str_mv |
Dadun. Depósito Académico Digital Universidad de Navarra |
| dc.subject.none.fl_str_mv |
Cochlear implantation Histology Saccule Utricle Vestibular organs |
| topic |
Cochlear implantation Histology Saccule Utricle Vestibular organs |
| description |
Cochlear implantation surgery (CI) is considered a safe procedure and is the standard treatment for the auditory rehabilitation in patients with severe-to-profound sensorineural hearing loss. Although the development of minimally traumatic surgical concepts (MTSC) have enabled the preservation of residual hearing after the implantation, there is scarce literature regarding the vestibular affection following MTCS. The aim of the study is to analyze histopathologic changes in the vestibule after CI in an animal model (Macaca fascicularis). Cochlear implantation was performed successfully in 14 ears following MTCS. They were classified in two groups upon type of electrode array used. Group A (n = 6) with a FLEX 28 electrode array and Group B (n = 8) with HL14 array. A 6-month follow-up was carried out with periodic objective auditory testing. After their sacrifice, histological processing and subsequent analysis was carried out. Intracochlear findings, vestibular presence of fibrosis, obliteration or collapse is analyzed. Saccule and utricle dimensions and neuroepithelium width is measured. Cochlear implantation was performed successfully in all 14 ears through a round window approach. Mean angle of insertion was >270° for group A and 180-270° for group B. In group A auditory deterioration was observed in Mf 1A, Mf2A and Mf5A with histopathological signs of scala tympani ossification, saccule collapse (Mf1A and Mf2A) and cochlear aqueduct obliteration (Mf5A). Besides, signs of endolymphatic sinus dilatation was seen for Mf2B and Mf5A. Regarding group B, no auditory deterioration was observed. Histopathological signs of endolymphatic sinus dilatation were seen in Mf 2B and Mf 8B. In conclusion, the risk of histological damage of the vestibular organs following minimally traumatic surgical concepts and the soft surgery principles is very low. CI surgery is a safe procedure and it can be done preserving the vestibular structures. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023 2023-06-07 2023 2023-01-01 2023 2023-01-01 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 |
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info:eu-repo/semantics/article |
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article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/10171/66558 |
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https://hdl.handle.net/10171/66558 |
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Inglés eng |
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Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
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info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf |
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reponame:Dadun. Depósito Académico Digital de la Universidad de Navarra instname:Universidad de Navarra |
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