Cochlear Implantation in the Setting of Cochlear Ossification as Sequela of Malarial Meningitis

2016 ◽  
Vol 37 (1) ◽  
pp. e3-e4
Author(s):  
Maja Svrakic ◽  
Benjamin Rafii ◽  
J. Thomas Roland
Keyword(s):  
Cochlear Implantation ◽  
Cochlear Ossification

scholarly journals Cochlear Ossification in a Patient with Cogan’s Syndrome Undergoing Bilateral Cochlear Implantation

2018 ◽  
Vol 2018 ◽  
pp. 1-2
Author(s):  
Adam M. Cassis
Keyword(s):  
Medical Treatment ◽  
Cochlear Implantation ◽  
Rapid Onset ◽  
Young Female ◽  
The Body ◽  
Cogan’S Syndrome ◽  
Vestibular Loss ◽  
Cogan's Syndrome ◽  
Eye Symptoms ◽  
Cochlear Ossification

We present the case of a young female patient diagnosed with Cogan’s syndrome after the rapid onset of profond hearing and vestibular loss with concomitant eye symptoms. After appropriate medical treatment, her hearing did not respond and she underwent bilateral simultaneous cochlear implantation with findings of extensive cochlear ossification in both ears. The case and outcome are described in the body of the paper.

The role of preoperative imaging for auditory implants in children

2020 ◽  
Vol 74 (6) ◽  
pp. 1-5
Author(s):  
Małgorzata Burzyńska-Makuch ◽  
Józef Mierzwiński ◽  
Karolina Haber
Keyword(s):  
Inner Ear ◽  
Cochlear Implantation ◽  
Preoperative Imaging ◽  
Surgical Approaches ◽  
Clinical Decisions ◽  
Imaging Studies ◽  
Inner Ear Malformations ◽  
Ear Malformations ◽  
Cochlear Ossification ◽  
Temporal Bones

<b>Introduction:</b> Preoperative imaging, besides audiological evaluation, plays a major role in evaluation of candidacy for auditory implants, and in particular cochlear implants. It is essential to assess whether the basic criteria necessary for implantation are met. Diagnostic imaging is crucial not only in determining candidacy, but also determining the feasibility of cochlear implantation as it allow to anticipate surgical difficulties which could preclude or complicate the implantation of the device. The aim of the study is to present the protocol for the evaluation of preoperative imaging studies with particular focus on the factors potentially affecting clinical decisions in children qualified for cochlear implantation. <br><b>Material and method:</b> Preoperative imaging studies of 111 children performed prior to cochlear implantation were analyzed: high-resolution computed tomography (HRCT) of temporal bones and MRI. The assessment was made according to the presented protocol. <br><b>Results:</b> Pathologies and anomalies identified during the assessment of preoperative imaging studies significantly altered clinical decisions in 30% of patients. In the study group, in 17% of patients inner ear malformations were identified. 2.7% of children were disqualified from a cochlear implantation due to severe congenital inner ear malformations. 9% of the patients have had bacterial meningitis. In 50% of them difficulties related to complete or progressive cochlear ossification occurred. In 4.5% of patients less common surgical approaches other than mastoidectomy with a posterior tympanotomy were applied. <br><b>Discussion:</b> Preoperative imaging allow for the identification of significant pathologies and anomalies affecting qualification decisions and further treatment. HRCT and MRI are complementary to each other for preoperative imaging. The two modalities in combination allow accurate and optimal evaluation of the anatomical structures prior to implantation. Inner ear malformations and cochlear ossification following meningitis are relatively frequently encountered in children qualified for a cochlear implant.

scholarly journals Auditory rehabilitation of patients with neurofibromatosis Type 2 by using cochlear implants

2011 ◽  
Vol 115 (4) ◽  
pp. 827-834 ◽  
Author(s):  
Pamela C. Roehm ◽  
Jon Mallen-St. Clair ◽  
Daniel Jethanamest ◽  
John G. Golfinos ◽  
William Shapiro ◽  
...  
Keyword(s):  
Cochlear Implants ◽  
Cochlear Implantation ◽  
Neurofibromatosis Type ◽  
Neurofibromatosis Type 2 ◽  
Speech Understanding ◽  
Speech Discrimination ◽  
Auditory Rehabilitation ◽  
Open Set ◽  
Cochlear Ossification

Object The aim of this study was to determine whether patients with neurofibromatosis Type 2 (NF2) who have intact ipsilateral cochlear nerves can have open-set speech discrimination following cochlear implantation. Methods Records of 7 patients with documented NF2 were reviewed to determine speech discrimination outcomes following cochlear implantation. Outcomes were measured using consonant-nucleus-consonant words and phonemes; Hearing in Noise Test sentences in quiet; and City University of New York sentences in quiet and in noise. Results Preoperatively, none of the patients had open-set speech discrimination. Five of the 7 patients had previously undergone excision of ipsilateral vestibular schwannoma (VS). One of the patients who received a cochlear implant had received radiation therapy for ipsilateral VS, and another was undergoing observation for a small ipsilateral VS. Following cochlear implantation, 4 of 7 patients with NF2 had open-set speech discrimination following cochlear implantation during extended follow-up (15–120 months). Two of the 3 patients without open-set speech understanding had a prolonged period between ipsilateral VS resection and cochlear implantation (120 and 132 months), and had cochlear ossification at the time of implantation. The other patient without open-set speech understanding had good contralateral hearing at the time of cochlear implantation. Despite these findings, 6 of the 7 patients were daily users of their cochlear implants, and the seventh is an occasional user, indicating that all of the patients subjectively gained some benefit from their implants. Conclusions Cochlear implantation can provide long-term auditory rehabilitation, with open-set speech discrimination for patients with NF2 who have intact ipsilateral cochlear nerves. Factors that can affect implant performance include the following: 1) a prolonged time between VS resection and implantation; and 2) cochlear ossification.

Cochlear Implantation in Cochlear Ossification

2018 ◽  
Vol 39 (1) ◽  
pp. 17-28 ◽  
Author(s):  
Ashish Vashishth ◽  
Andrea Fulcheri ◽  
Sampath Chandra Prasad ◽  
Margherita Bassi ◽  
Gianluca Rossi ◽  
...  
Keyword(s):  
Cochlear Implantation ◽  
Cochlear Ossification

Delayed cochlear implantation after surgical labyrinthectomy

2011 ◽  
Vol 126 (1) ◽  
pp. 63-65 ◽  
Author(s):  
H A Osborn ◽  
R Yeung ◽  
V Y W Lin
Keyword(s):  
Quality Of Life ◽  
Case Report ◽  
Time Delay ◽  
Treatment Option ◽  
Cochlear Implantation ◽  
Significant Delay ◽  
Cochlear Ossification ◽  
Viable Treatment

AbstractBackground:Cochlear implantation has been used to rehabilitate profoundly deafened adults for more than 25 years. However, surgical labyrinthectomy is often considered a contraindication to cochlear implantation, especially if there is a significant delay between the two procedures. As the role of cochlear implantation continues to expand, this idea requires reconsideration.Case report:A 59-year-old woman presented to our clinic after undergoing bilateral surgical labyrinthectomies for intractable Ménière's disease 21 years prior. Despite the significant time delay, she underwent cochlear implantation with a good audiological outcome and improved quality of life.Conclusion:Changes to the cochlea and vestibule following surgical labyrinthectomy include cochlear ossification and obliteration of the vestibule. These issues have been thought to limit the potential for cochlear implantation, especially when there is a significant delay between the two procedures. However, delayed cochlear implantation, even decades after labyrinthectomy, remains a viable treatment option which can benefit selected patients.

A New Computed Tomography Method to Identify Meningitis-Related Cochlear Ossification and Fibrosis before Cochlear Implantation

2014 ◽  
Vol 150 (4) ◽  
pp. 646-653 ◽  
Author(s):  
Kazunori Ichikawa ◽  
Akinori Kashio ◽  
Harushi Mori ◽  
Atushi Ochi ◽  
Shotaro Karino ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cochlear Implantation ◽  
Cochlear Ossification ◽  
Tomography Method

SURGICAL APPROACH TO COCHLEAR IMPLANTATION IN PATIENTS WITH COCHLEAR OSSIFICATION

2017 ◽  
Vol 86 (1) ◽  
pp. 53-59
Author(s):  
V. E. Kuzovkov ◽  
◽  
Yu. K. Yanov ◽  
A. Sh. Amonov ◽  
A. S. Lilenko ◽  
...  
Keyword(s):  
Surgical Approach ◽  
Cochlear Implantation ◽  
Cochlear Ossification

scholarly journals A Case of Intralabyrinthine Schwannoma Removal and Sequential BonebridgeTM Implantation

2021 ◽  
Vol 64 (12) ◽  
pp. 949-953
Author(s):  
Jeong Hae Park ◽  
Jae Sang Han ◽  
Yeonji Kim ◽  
Shi Nae Park
Keyword(s):  
Hearing Loss ◽  
Cochlear Implantation ◽  
Benign Tumor ◽  
Bone Conduction ◽  
Tumor Removal ◽  
Hearing Rehabilitation ◽  
Bone Conduction Implant ◽  
Intralabyrinthine Schwannoma ◽  
Rare Benign Tumor ◽  
Cochlear Ossification

Intralabyrinthine schwannoma (ILS) is a rare benign tumor that arises within the membranous labyrinthine. Since hearing loss is inevitable after tumor removal in most cases, an appropriate rehabilitation method should be considered. A 41-year-old male, who was diagnosed with ILS underwent tumor removal via translabyrinthine approach, has subsequently experienced right-side deafness as a result. Seventeen months after the tumor removal, a surgery for hearing rehabilitation was performed. Since cochlear implantation was not doable due to cochlear ossification, an active transcutaneous bone conduction implant (BonebridgeTM , MEDEL) was placed at the sinodural angle. To the best of our knowledge, this is the first report describing hearing rehabilitation with BonebridgeTM implantation after ILS removal.

scholarly journals Bilateral Hearing Loss and Unilateral Cochlear Ossification in a Patient With Chronic Myelogenous Leukemia

2020 ◽  
pp. 014556132096107
Author(s):  
Xianhai Zeng ◽  
Zengping Lin ◽  
Xiaodong Han ◽  
Juanjuan Li ◽  
Peng Zhang ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Cochlear Implantation ◽  
Sensorineural Deafness ◽  
Sudden Hearing Loss ◽  
Myelogenous Leukemia ◽  
Preoperative Imaging ◽  
Hematological Disorders ◽  
Cochlear Implant Surgery ◽  
Cochlear Ossification ◽  
The Right

Bilateral sensorineural deafness and unilateral cochlear ossification have rarely been described in patients with chronic myeloid leukemia (CML). A 21-year-old man presented to a hospital with right-sided sudden hearing loss and tinnitus. He was diagnosed with CML. Five days later, sudden hearing loss appeared in the other ear. Abnormality of the right-sided inner ear structure was revealed by preoperative magnetic resonance imaging; honeycomb-like cochlear ossification was observed during cochlear implant surgery in the right ear. The patient’s auditory performance exhibited significant improvement after bilateral cochlear implantation in our hospital. Hematological disorders must be considered in patients with sensorineural hearing loss. Cochlear implantation is feasible in patients with CML who exhibit sensorineural deafness, but cochlear ossification should be carefully evaluated by means of preoperative imaging examinations.

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