Conclusion: A man-made bone tunnel of 1.5 turns around the modiolus can be created in cases of total cochlear ossification. Patients with ossified cochlea types I and II achieved satisfactory hearing results after cochlear implantation (CI). Patients with ossified cochlea type III, in which the modiolus is damaged by the ossification, showed poor hearing results after CI.
Objectives: To introduce a new CI surgical technique for ossified cochlea and to summarize postoperative hearing results.
Methods: A total of 79 patients with ossified cochlea who underwent CI were analyzed. Cases were divided into three types: type I, round window ossification; type II, partial cochlear ossification; and type III, complete cochlear ossification. Four surgical methods were used: method A, applicable to type I; methods B and C, applicable to type II; and method D, applicable to type III. Sound field audiometric and speech tests were performed 6 months postoperatively.
Results: All surgeries were successful. The average hearing thresholds for warble tone were 35 dB hearing level (HL) in types I and II and 75 dB HL in type III. The average recognition rates of Mandarin speech were 100% (single finals) and 91% (single initials) in types I and II and 20% (single finals) and 0% (single initials) in type III.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3109/00016489.2014.947656 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Scala vestibuli cochlear implantation: exploring feasibility and outcomes- a systematic review.
Eur Arch Otorhinolaryngol
November 2024
Department of Otorhinolaryngology, All India Institute of Medical Sciences, Jodhpur, India.
Purpose: While the scala tympani (ST) is usually the preferred site for electrode insertion in cochlear implantation, anatomical variations and cochlear ossification may require scala vestibuli (SV) insertion. This systematic review evaluates the feasibility, techniques, and clinical outcomes of SV insertions compared to ST insertions, focusing on their impact on auditory performance.
Methods: A systematic review was conducted using PRISMA guidelines.
Cochlear implantation in otosclerosis: surgical and audiological outcomes between ossified and non-ossified cochlea.
Eur Arch Otorhinolaryngol
September 2024
Department of Otology and Skull Base Surgery, Gruppo Otologico, Rome, Piacenza, Italy.
Aim: To evaluate (1) Audiological and surgical outcomes in patients with otosclerosis following cochlear implantation. (2) surgical difficulties and outcomes between both groups. (3) Audiological outcomes between both groups.
View Article and Find Full Text PDFCochlear Aqueduct Post-Natal Growth: A Computed Tomography Study.
J Assoc Res Otolaryngol
December 2024
Department of Otolaryngology and Head and Neck Surgery, Gui de Chauliac Hospital, CHRU Montpellier - Centre Hospitalier Régional Universitaire, Université de Montpellier, Montpellier, France.
The cochlear aqueduct (CA) is a bony canal located at the base of the scala tympani of the cochlea. It connects the inner ear perilymph fluid to the cerebrospinal fluid of the posterior cerebral fossa. Its function is not well understood, as it seems to be patent in only a fraction of adult patients.
View Article and Find Full Text PDFCochlear implantation for rare Streptococcus suis meningitis with hearing loss.
Eur Arch Otorhinolaryngol
October 2024
Department of Otolaryngology Head & Neck Surgery, Zhujiang Hospital, Southern Medical University, 253 Industrial Avenue Middle Road, Guangzhou, 510282, China.
Article Synopsis
- This study investigated the effectiveness of 3D T2-weighted MRI and high-resolution CT scans in diagnosing cochlear fibrosis linked to Streptococcus suis meningitis.
- Four patients with hearing loss despite antibiotic treatment were evaluated using clinical imaging and post-surgical assessments.
- Results showed that T2MRI was more sensitive than HRCT in detecting cochlear issues, and cochlear implantation was successfully performed, indicating that CI is a viable treatment option even in severe fibrosis cases.
Objective: We aimed to elucidate the ossification process of the otic capsule in postnatal C57BL/6 mice and depict the three-dimensional (3D) process of otoconial mineralization in vivo.
Methods: The otic capsules of C57BL/6 mice were stained with alizarin red and imaged/compared using micro-computed tomography on postnatal day (P) between P0 and P8, P10, P15, and P30 and 3-4 months old (P3-4Mo). We reconstructed 3D images of the otic capsule and otoconia and measured the bone mineral density using x-ray absorptiometry on each age.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!