cochlear nerve deficiency
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2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Kazuki Matsuura ◽  
Hidekane Yoshimura ◽  
Jun Shinagawa ◽  
Masahiro Kurozumi ◽  
Yutaka Takumi

2021 ◽  
pp. 000348942110195
Author(s):  
Nicholas A. Dewyer ◽  
Sullivan Smith ◽  
Barbara Herrmann ◽  
Katherine L. Reinshagen ◽  
Daniel J. Lee

Objective: To characterize the prevalence, imaging characteristics, and cochlear implant candidacy of pediatric patients with single-sided deafness (SSD). Methods: An audiometric database of patients evaluated at a large tertiary academic medical center was retrospectively queried to identify pediatric patients (<18 years old) with SSD, defined as severe to profound sensorineural hearing loss in one ear and normal hearing in the other. Medical records of identified patients were reviewed to characterize the prevalence, etiology, and cochlear implant candidacy of pediatric patients with SSD. Results: We reviewed audiometric data obtained from 1993 to 2018 for 52,878 children at our institution. 191 (0.36%) had the diagnosis of SSD. Cochlear nerve deficiency (either hypoplasia or aplasia) diagnosed on MRI and/or CT was the most common etiology of SSD and was present in 22 of 88 (25%) pediatric SSD patients with available imaging data. 70 of 106 (66%) pediatric SSD patients with available imaging had anatomy amenable to cochlear implantation. Conclusions: Pediatric SSD is a rare condition and the most common etiology based on radiology is cochlear nerve deficiency. High resolution imaging of the temporal bone is essential to determine cochlear nerve morphology prior to consideration of cochlear implantation.


2020 ◽  
Vol 16 (3) ◽  
pp. 297-302
Author(s):  
Iylia Ajmal Othman ◽  
◽  
Asma Abdullah ◽  
Goh Bee See ◽  
Cila Umat ◽  
...  

2020 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Medhat Yousef ◽  
Tamer A. Mesallam ◽  
Soha N. Garadat ◽  
Ayna Almasaad ◽  
Farid Alzhrani ◽  
...  

2020 ◽  
Vol 100 (1) ◽  
pp. 31-37
Author(s):  
Varun V. Varadarajan ◽  
Sarah A. Sydlowski ◽  
Michael M. Li ◽  
Samantha Anne ◽  
Oliver F. Adunka

The indications for cochlear implantation have gradually expanded as advancements in technology have evolved, resulting in improved audiologic outcomes for both adult and children. There remains a significant underutilization of cochlear implant technology in the United States, and recognition of the potential benefits of cochlear implantation for non-traditional indications is critical for encouraging the evolution of candidacy criteria. Adult cochlear implantation candidacy has progressed from patients with bilateral profound sensorineural hearing loss (SNHL) to include patients with greater degrees of residual hearing, single-sided deafness and asymmetric hearing, and atypical etiologies of hearing loss (eg, vestibular schwannoma, Ménière’s disease, and otosclerosis). Indications for pediatric cochlear implantation have similarly evolved from children with bilateral severe to profound SNHL to implanting children at a younger age, including those with residual hearing, asymmetric hearing loss, inner ear malformations, as well as cochlear nerve deficiency. In this editorial, the literature investigating cochlear implantation for nontraditional indications is reviewed with an aim to use the best available evidence to encourage the evolution of candidacy criteria.


2020 ◽  
Vol 04 (06) ◽  
Author(s):  
Anjin Mori ◽  
Akinori Kashio ◽  
Yusuke Akamatsu ◽  
Erika Ogata ◽  
Yujiro Hoshi ◽  
...  

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