Current indications for cochlear implantation in adults and children

2019 ◽  
Vol 73 (3) ◽  
pp. 1-5 ◽  
Author(s):  
Witold Szyfter ◽  
Michał Karlik ◽  
Alicja Sekula ◽  
Simon Harris ◽  
Wojciech Gawęcki
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Hearing Aids ◽  
Cochlear Implantation ◽  
Pure Tone Audiometry ◽  
Sensorineural Hearing ◽  
Profound Hearing Loss ◽  
Unilateral Deafness ◽  
Bilateral Sensorineural Hearing Loss ◽  
Asymmetric Hearing Loss

Introduction: Surgical treatment of deafness by cochlear implants is used for more than 40 years, and during this period permanently, gradual and significant expansion of indications for this surgery has been observed. Material and methods: In our Department in the years 1994-2018 1480 cochlear implantations were performed, both in adults (647) and in children (883). In this study current indications and the rules for eligibility of patients based on 25 years of experience are presented. Results: Indications for cochlear implantation in adults are: 1) bilateral postlingual deafness, 2) bilateral sensorineural hearing loss - in pure tone audiometry > 70 dB HL (average 500-4000 Hz) and in speech audiometry in hearing aids understanding < 50% of words for the intensity of the stimulus 65 dB, in the absence of the benefits of hearing aids, 3) bilateral profound hearing loss for high frequency with good hearing for low frequency, in the absence of the benefits of hearing aids, 4) some cases of asymmetric hearing loss with intensive tinnitus in the deaf ear. An indication in children is bilateral sensorineural hearing loss > 80dB HL confirmed by hearing tests, after about 6 months of rehabilitation with the use of hearing aids. Discussion: Although cochlear implantation is used for more than 40 years, the indications for this treatment underlies constant modifications. They concern the age of eligible patients, implantation in patients with partially preserved hearing, as well as treatment for patients with difficult anatomical conditions. In many countries, bilateral implantations are commonly performed, and more and more centers recommend this treatment in the case of unilateral deafness or asymmetric hearing loss, especially with the accompanying tinnitus in the deaf ear.

Sudden bilateral sensorineural hearing loss associated with urticarial vasculitis

2013 ◽  
Vol 127 (7) ◽  
pp. 708-711 ◽  
Author(s):  
A C Hall ◽  
A C Leong ◽  
D Jiang ◽  
A Fitzgerald-O'Connor
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Cochlear Implantation ◽  
Skin Lesions ◽  
Sudden Hearing Loss ◽  
Sudden Onset ◽  
Sensorineural Hearing ◽  
Urticarial Vasculitis ◽  
Wells Syndrome ◽  
Bilateral Sensorineural Hearing Loss

AbstractBackground:Bilateral sensorineural hearing loss associated with recurrent urticarial skin lesions may be signs of underlying Muckle–Wells syndrome. Previous reports have described the hearing loss to be progressive in nature.Method:To our knowledge, this paper presents the first published case of sudden onset, bilateral sensorineural hearing loss associated with urticarial vasculitis due to underlying Muckle–Wells syndrome.Results:The patient underwent a cochlear implantation with a modest outcome.Conclusion:Cochlear implantation may help to rehabilitate sudden hearing loss associated with this condition, but early diagnosis may allow treatment with interleukin-1β inhibitors such as anakinra.

Exposure of weak magnetic fields on auditory nerve of patients with moderate to severe sensorineural hearing loss

2021 ◽  
Vol 20 (5) ◽  
pp. 63-67
Author(s):  
S. V. Surma ◽  
◽  
D. S. Klyachko ◽  
B. F. Shchegolev ◽  
E. A. Ogorodnikova ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Magnetic Fields ◽  
Sensorineural Hearing Loss ◽  
Hearing Aids ◽  
Auditory Nerve ◽  
Health Hazard ◽  
Sensorineural Deafness ◽  
Pure Tone Audiometry ◽  
Sensorineural Hearing ◽  
Alternative Methods

The article shows that one of the alternative methods of treating moderate to severe sensorineural hearing loss can be the use of an external weak magnetic field. The proposed method is based on the coincidence of the effects caused by the exposure of an external electromagnetic field of certain parameters on the auditory nerve, and natural acoustic exposure. The similarity of reaction allows using of external magnetic fields as an artificial stimulator of the auditory system’s neural part. Induction of applied magnetic fields does not exceed 300 µT, which means that under the current legislation such fields are classified as posing no health hazard. This method was tested at Saint Petersburg Research Institute of Ear, Throat, Nose, and Speech based on relevant Ethics Committee approval and complied with informed consent standards of volunteers. 15 patients aged 18 to 45 with III and IV levels of sensorineural deafness without concomitant pathologies were tested. Threshold pure-tone audiometry was performed on each patient at 500, 1000, 2000, 3000, and 4000 Hz before and after the procedure. The results of the experiments showed that electromagnetic stimulation of auditory neurons allows increasing hearing sensitivity. The proposed procedure may not yield a tangible result in patients with auditory deprivation. Patients with hearing aids showed the most significant results. At the same time, the measurements have shown that the sound thresholds among them became 10 dB lower on the average. The non-invasiveness of the exposure provided additional comfort for the patient.

Outcome of Cochlear Implantation in Postmeningitis Profound Sensorineural Hearing Loss at Rajavithi Hospital

2021 ◽  
Vol 104 (2) ◽  
pp. 260-263
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Cochlear Implantation ◽  
Sensorineural Hearing ◽  
Preoperative Imaging ◽  
Profound Hearing Loss ◽  
Language Status ◽  
Auditory Performance ◽  
Electrode Insertion ◽  
One Year

Background: Bacterial meningitis is one of the major factors in the etiology of acquired sensorineural hearing loss in children and adults. Cochlear implantation in these patients is challenging because of inner ear ossification and fibrosis, and this procedure sometimes achieves poorer outcomes in this scenario than with other causes of sensorineural hearing loss. There has been little research into the factors affecting the outcomes of this procedure. Objective: To evaluate the outcomes of cochlear implantation in patients with postmeningitis profound sensorineural hearing loss and to evaluate the factors that affect the results. Materials and Methods: A retrospective review was conducted of thirty patients who were diagnosed with post meningitis profound hearing loss and underwent cochlear implantation at Rajavithi Hospital between 2001 and 2016. Preoperative language status, duration of deafness, preoperative imaging, and degree of electrode insertion were recorded. Categories of auditory performance-II test (CAP-II) was evaluated in all cases, one year postoperative. Results: Thirty postmeningitis deafness patients underwent cochlear implantation. The median age at diagnosis of meningitis and age at implantation were 41 years (range 1 to 75) and 49.50 years (range 3 to 75), respectively. The median duration of deafness was 12 months (range 4 to 300), and the overall mean CAP-II at one year after surgery was 5.47±2.21. The postlinguistic group had a significantly higher CAP-II score than the prelinguistic one (p=0.006). Electrodes were successfully totally inserted in 19 patients (63.3%) and partially inserted in 11 (36.7%). The average CAP-II score in the group with fully-inserted electrodes was significantly higher than in the group with partially-inserted electrodes (p=0.045). There was no correlation between CAP-II score and age at meningitis diagnosis (p=0.069), age at time of surgery (p=0.105), duration of deafness (p=0.506), or preoperative CT (p=0.228) or MRI abnormality (p=0.078). Conclusion: Cochlear implantation in patients with postmeningitis profound hearing loss had high success rates and favorable outcomes. Preoperative language status and degree of electrode insertion were factors that affected auditory performance results. Keywords: Cochlear implantation, Postmeningitis hearing loss, Sensorineural hearing loss, Meningitis, Rajavithi Hospital

Sudden Bilateral Sensorineural Hearing Loss Following Speedballing

2008 ◽  
Vol 19 (06) ◽  
pp. 461-464 ◽  
Author(s):  
Cynthia G. Fowler ◽  
Jennifer L. King
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Otoacoustic Emissions ◽  
Rare Complication ◽  
Pure Tone Audiometry ◽  
Sensorineural Hearing ◽  
Acoustic Reflexes ◽  
History Of ◽  
Bilateral Sensorineural Hearing Loss ◽  
The Right

Background: Hearing loss is an infrequently-reported consequence of recreational drug abuse. Although there are sporadic reports of hearing loss from heroin and cocaine ingested separately, there are no reports of hearing loss resulting from the combination of both drugs ingested simultaneously in the form of speedballing. Purpose: The purpose of this report is to document a case of bilateral sensorineural hearing loss associated with an episode of speedballing. Research Design: Case Report Data Collection And Analysis: The subject of this report was a 40-year-old man with a 20-year history of substance abuse. Data collected included a case history, pure tone audiometry, tympanometry and acoustic reflexes, and transient evoked otoacoustic emissions. Results: The audiologic evaluation indicated a mild to moderate, relatively flat, bilateral sensorineural hearing loss that was worse in the right ear. Conclusions: A bilateral sensorineural hearing loss involving both cochlear and neural pathology may be a rare complication of cocaine, heroin, or the combination of the two drugs.

scholarly journals A case report of cochlear implantation in patients with osteopetrosis: surgical approaches and auditory results

2021 ◽  
Author(s):  
Masoud Motasaddi Zarandy ◽  
Hakima Abdullah ◽  
Mina Motasaddi Zarandy ◽  
Mohammadreza Firouzifar ◽  
Farzad Moubedshahi
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Cochlear Implantation ◽  
Hearing Threshold ◽  
Sensorineural Hearing ◽  
Surgical Approaches ◽  
Nerve Dysfunction ◽  
Electrode Insertion ◽  
Bilateral Sensorineural Hearing Loss ◽  
The Right

Background: Osteopetrosis (OP) is a rare disease of the skeletal system that can be associated with complications such as bone fracture, nerve dysfunction and deafness due to increased bone density and reduced bone quality. In this regard and due to the challenge that it can cause for cochlear implantation (CI), in this study we aimed to report CI conducted on two patients with OP in Iran. The Case: Patients were two women diagnosed with OP and bilateral sensorineural hearing loss (SNHL) who underwent CI in the right ear. Preoperative PTA showed a hearing threshold decrease of more than 100 dB in both patients. A standard cochleostomy was performed in one patient and endoscopic surgery in the other patient through the external ear canal. One month after surgery, the hearing threshold improved b y 60−90 dB in both patients. No facial nerve palsy or implant extrusion/migration was observed after surgery. Conclusion: Although technically challenging, CI seems to be a safe and effective method to improve the SNHL in patients with OP. The path for electrode insertion should be tailored to meet the conditions and anatomy of patients. Keywords: Cochlear implantation; osteopetrosis; sensorineural hearing loss

scholarly journals Audiological findings of a patient with H syndrome: case report

2021 ◽  
Vol 37 (1) ◽  
Author(s):  
Diala Hussein ◽  
Büşra Altın ◽  
Münir Demir Bajin
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Hearing Aids ◽  
Auditory Brainstem Response ◽  
Pure Tone Audiometry ◽  
Auditory Brainstem ◽  
Sensorineural Hearing ◽  
Brainstem Response ◽  
The Right

Abstract Background H syndrome is an autosomal recessive disorder caused by mutations in SLC29A3. Hyperpigmentation, hypertrichosis, hyperglycemia, and hearing loss are some characteristics of this disorder, and it has a prevalence of < 1/1000. The aim of this report is to spread awareness among otologists, audiologists, and pediatricians about this syndrome and its audiological features. Case presentation An 8-year-old male with a diagnosed H syndrome registered to our clinic with a complaint of hearing loss. The patient was diagnosed with hearing loss in a different clinic using only the air-conducted click auditory brainstem response test which showed wave V at 60 dB nHL for the right ear and at 80 dB nHL for the left ear. The initially performed pure tone audiometry (PTA) test in our clinic revealed a bilateral asymmetric hearing loss with a moderate sensorineural hearing loss in the right ear and a profound mixed hearing loss in the left ear. The performed air conducted click auditory brainstem response (ABR) result showed wave V at 55 dB nHL for the right ear and at 70 dB nHL for the left ear. Then, the repeated PTA test revealed a mild-severe sensorineural sloping hearing loss in the right ear and a severe sensorineural hearing loss in the left ear. Conclusion Although hearing thresholds in H syndrome could be within normal limits in some patients, sensorineural hearing loss is an important characteristic feature for this syndrome. Sensorineural hearing loss could be progressive or of sudden onset and ranges from mild to profound. Thus, it must be taken into consideration to apply the audiological follow-up regularly and paying attention to the patient’s complaints; also, a regular follow-up for language development of children with H syndrome and for the hearing aids is advised.

Sensorineural hearing loss after bacterial meningitis in children residing in Nur-Sultan

2020 ◽  
Vol 18 (4) ◽  
pp. 189-194
Author(s):  
A. Seidullayeva ◽  
◽  
D. Bayesheva ◽  
B. Turdalina ◽  
A. Altynbekova ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Bacterial Meningitis ◽  
Sensorineural Hearing Loss ◽  
Hearing Aids ◽  
Cochlear Implantation ◽  
Clinical Manifestations ◽  
Otoacoustic Emission ◽  
Neurological Complications ◽  
Viral Meningitis ◽  
Sensorineural Hearing

Bacterial meningitis (BM) is a widespread health problem characterized by severe clinical manifestations and high incidence of neurological complications. BM remains one of the main causes of disability and mortality among young children all over the world. Hearing loss is one of neurological complications associated with BM. It accounts for up to 60%–90% of all cases of acquired sensorineural hearing loss (SNHL). Between 2015 and 2018, we performed screening for SNHL among children who had had BM. Seven out of 62 patients examined (11.3%) were found to have SNHL. BM was primarily caused by Streptococcus pneumoniae (n = 4) and Neisseria meningitidis (n = 3). Three out of 4 patients had grade 3–4 SNHL. Computed tomography revealed cochlear ossification in two children and cochlear fibrosis in one child (who had successful cochlear implantation later). For the rest of the patients, we recommended hearing aids. We also found that hearing loss usually develops after BM and does not affect patients with viral meningitis (caused by enteroviruses). We recommend that children with BM undergo regular screening for SNHL (every 3 days during treatment) using otoacoustic emission. These patients should be also examined by an audiologist after discharge from hospital and then every three months for a year. Key words: children, cochlear implantation, meningitis, sensorineural hearing loss, acquired deafness

Cochlear implantation in cochlear otosclerosis patients

2021 ◽  
Vol 20 (6) ◽  
pp. 84-92
Author(s):  
V. E. Kuzovko ◽  
◽  
A. S. Lilenko ◽  
S. B. Sugarova ◽  
S. V. Lilenko ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Cochlear Implantation ◽  
Crucial Role ◽  
Metabolic Changes ◽  
Sensorineural Hearing ◽  
High Tech ◽  
Profound Hearing Loss ◽  
Bony Labyrinth

The cochlear form of otosclerosis is characterized by irreversible metabolic changes that lead to complete hearing loss. Cochlear implantation, which is a high-tech method of rehabilitation for patients with profound hearing loss and complete deafness, becomes an opportunity for hearing restoration. However, CI in patients with cochlear otosclerosis may be accompanied by a number of difficulties due to the remodeling of the cochlea of varying severity. Thus, changes in the bony labyrinth play a crucial role in the management of patients with the cochlear form of otosclerosis and sensorineural hearing loss IV.

Cochlear Implantation in Sudden Bilateral Sensorineural Hearing Loss

1998 ◽  
Vol 77 (4) ◽  
pp. 300-303 ◽  
Author(s):  
Eric W. Sargent ◽  
Douglas L. Beck
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Cochlear Implantation ◽  
Sudden Sensorineural Hearing Loss ◽  
Sensorineural Hearing ◽  
Bilateral Hearing Loss ◽  
Significant Recovery ◽  
Open Set ◽  
Bilateral Sensorineural Hearing Loss

Although 1–4% of all cases of sudden sensorineural hearing loss (SSHL) are bilateral, all such patients reported to date have experienced significant recovery of hearing in at least one ear. We report a case of profound, bilateral idiopathic SSHL without recovery which was treated with cochlear implantation; the first such report to our knowledge. The patient achieved open-set spondee recognition. Individuals with sudden bilateral hearing loss in whom treatable causes have been eliminated may benefit from cochlear implantation.

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