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CC BY 4.0 · Int Arch Otorhinolaryngol 2024; 28(01): e107-e114
DOI: 10.1055/s-0043-1775811
Original Research

The Value of Endoscopic Exposure of Round Window in Cochlear Implant via Facial Recess

Mena Maher Nassif 
1   Faculty of Medicine, Ain Shams University, Cairo, Eygpt
,
Islam Mohamed Hussein Darahem 
1   Faculty of Medicine, Ain Shams University, Cairo, Eygpt
,
Ahmed Abdelmoneim Teaima 
1   Faculty of Medicine, Ain Shams University, Cairo, Eygpt
,
Mustafa Mohamed Mustafa 
1   Faculty of Medicine, Ain Shams University, Cairo, Eygpt
,
Mohamed Saad Hassab Allah 
1   Faculty of Medicine, Ain Shams University, Cairo, Eygpt
,
Samer Ahmed Ibrahim 
1   Faculty of Medicine, Ain Shams University, Cairo, Eygpt
› Author Affiliations
Funding This Study received no funding
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Abstract

Introduction Cochlear implantation has been considered as the best treatment in patients with severe to profound hearing loss unaidable with hearing aids. The main value of endoscope-assisted cochlear implantation is improved visibility of the RW

Objective to assess the value of endoscopic assisted CI surgery via facial recess approach without elevating tympanic anulus.

Methods This Prospective case series study non-randomized sample was performed on 50 patients with severe to profound hearing loss unaidable with hearing aids undergoing unilateral endoscopic assisted cochlear implant surgery with round window electrode insertion

Results There were 23 male and 27 female patients. Most of the cases were children (41 cases). Of those 50 patients, 39 were prelingually hearing impaired. Four cases had various inner ear abnormalities. The standard mastoidectomy and Posterior Tympanotomy approach were used for all cases. Endoscopic identification of the RW through the PT enabled us to perform regular surgery in all cases. The current study concludes the difference between microscopic exposure and endoscopic exposure represented by Saint Tomas classification found that endoscopic exposure of round window classification is better represented by downgrading in the classification of round window exposure as type I 29(58%), type IIa 18(36%) type IIb 3 (6%) Non were type III by endoscopic exposure compared to microscopic exposure of round window is a type I 7(14%), type II 14(28%), type IIb 22(44%) and type III 7 (14%).

Conclusion Endoscopy proved a great value in exposure and identification of RW in CI surgery through posterior tympanotomy approach,

Keywords

endoscopic-assisted CI - round window - endoscopic ear surgery

Ethics Approval and Consent to Participate

This study was approved by ethics committee of Ain shams university Faculty of Medicine (MD/93/2020).


Informed written consent was obtained from all individual participants included in this study.


Consent for Publication

Not applicable


Competing Interest

All Authors declare that they have no competing interest


Availability of Data and Materials

The datasets used or analyzed during the current study available from corresponding author on reasonable request


Authors Contributions

SI performed surgeries on patients, MN designed the work, ID acquired and analyzed the data, AT interpret the data of the work, MM involved in the drafting and revising the data for important intellectual content, SI and MH had a major role in fine approval of version to be published, all authors read and approve the final manuscript.




Publication History

Received: 29 August 2022

Accepted: 05 December 2022

Article published online:
05 February 2024

© 2024. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution 4.0 International License, permitting copying and reproduction so long as the original work is given appropriate credit (https://creativecommons.org/licenses/by/4.0/)

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