Consequences of Early Conductive Hearing Loss on Long-Term Binaural Processing

2017 ◽  
Vol 38 (5) ◽  
pp. 621-627 ◽  
Author(s):  
Kelley Graydon ◽  
Gary Rance ◽  
Richard Dowell ◽  
Bram Van Dun
Keyword(s):  
Hearing Loss ◽  
Conductive Hearing Loss ◽  
Binaural Processing ◽  
Conductive Hearing

Long-term Compliance and Satisfaction With Percutaneous Bone Conduction Devices in Patients With Congenital Unilateral Conductive Hearing Loss

2015 ◽  
Vol 36 (5) ◽  
pp. 826-833 ◽  
Author(s):  
Rik C. Nelissen ◽  
Emmanuel A. M. Mylanus ◽  
Cor W. R. J. Cremers ◽  
Myrthe K. S. Hol ◽  
Ad F. M. Snik
Keyword(s):  
Hearing Loss ◽  
Conductive Hearing Loss ◽  
Bone Conduction ◽  
Conductive Hearing

Binaural processing after corrected congenital unilateral conductive hearing loss

1994 ◽  
Vol 74 (1-2) ◽  
pp. 99-114 ◽  
Author(s):  
Debra Wilmington ◽  
Lincoln Gray ◽  
Robert Jahrsdoerfer
Keyword(s):  
Hearing Loss ◽  
Conductive Hearing Loss ◽  
Binaural Processing ◽  
Conductive Hearing

scholarly journals Congenital Oval Window Aplasia: An Unusual Cause of Conductive Hearing Loss in an Adult

2016 ◽  
Vol 31 (1) ◽  
pp. 39-44
Author(s):  
Charlotte M. Chiong ◽  
Rachel T. Mercado-Evasco ◽  
Alessandra E. Chiong ◽  
Mary Ellen C. Perez ◽  
Franco Louie L. Abes ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Facial Nerve ◽  
Recent Literature ◽  
Conductive Hearing Loss ◽  
Oval Window ◽  
Surgical Approaches ◽  
Hearing Gain ◽  
Temporal Bone Ct ◽  
Conductive Hearing

Objective: To report a case of congenital oval window aplasia (COWA) in a Filipino adult presenting with  unilateral maximal conductive hearing loss and discuss the diagnostic considerations, pathophysiology and management. Methods:             Study Design:  Case report             Subjects: One (1)             Setting:  Tertiary Public Referral Center Results: Audiometric evaluation showed a maximal unilateral left conductive hearing loss. High resolution temporal bone CT showed absence of the oval window on the left along with facial and stapes abnormalities.  Exploratory tympanotomy showed an aberrant facial nerve, monopodal and abnormally located stapes and absent oval window.  Postoperative hearing gain achieved after a neo-oval window and Schuknecht piston wire prosthesis remained stable over two years. Conclusion: A congenital minor ear anomaly classified as Cremers Class 4a in which a congenital oval window aplasia was associated with an aberrant facial nerve anomaly and a monopodal stapes is reported. Recent literature supported the view that congenital oval window aplasia can in selected cases be amenable to various surgical approaches and a stable postoperative hearing gain is achievable in the long term. Keywords: oval window absence,  Cremers classification, congenital middle ear

Conductive hearing loss after surgical treatment of otosclerosis—long-term observations

2020 ◽  
Vol 74 (6) ◽  
pp. 1-5
Author(s):  
Witold Szyfter ◽  
Wojciech Gawęcki ◽  
Anna Bartochowska ◽  
Andrzej Balcerowiak ◽  
Marta Pietraszek ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Surgical Treatment ◽  
Medical Records ◽  
Conductive Hearing Loss ◽  
Good Method ◽  
Stapes Footplate ◽  
Conductive Hearing ◽  
Frequent Observation

Introduction: Surgical treatment of otosclerosis has been a commonly accepted method of treatment for many years. The improvement of hearing after surgery is sometimes even spectacular, and good results are obtained in many centres in over 90% of the entire operated population. However, in the years following the procedure, some patients develop permanent or progressive conductive hearing loss. The aim of the study is to present a group of patients with conductive hearing loss that appeared after the first otosclerosis surgery and to analyse the causes of its occurrence. Material and Methods: Retrospective analysis was performed on patients who were first operated on in the years 2000-2009. Their medical records were analysed by the end of 2019, which made it possible to obtain results on at least 10 years of postoperative follow-up. The group consisted of 1118 patients, aged 14-82, including 802 women and 316 men. Results: Reoperations due to conductive hearing loss were performed on 93 patients, who accounted for 8.3% of the originally operated patients. They were much more often performed on patients after stapedectomies (19.7%) than on patients after stapedotomy (5.5%). Intraoperatively, prosthesis displacement was found to be the most frequent observation (44.1%) and was often associated with erosion or necrosis of the long process of incus (28%). Less frequent reasons of hearing loss were: adhesions around the prosthesis (10.8%), too small hole in the stapes footplate (8.6%), too short prosthesis (8.6%), progression of otosclerosis (7.5%), too long prosthesis (6.4%), presence of a granuloma around the prosthesis (5.4 %), and displacement of incus (4.3%). Conclusions: Surgical treatment in otosclerosis is a widely accepted and good method. It allows improvement in hearing in the vast majority of patients treated in this way. Unfortunately, over the years, some patients develop conductive hearing loss again. Reoperation gives a chance to find the cause and improve hearing in most of these cases.

Persistent and recurrent conductive deafness following stapedotomy

2010 ◽  
Vol 125 (5) ◽  
pp. 460-466 ◽  
Author(s):  
G Thiel ◽  
R Mills
Keyword(s):  
Hearing Loss ◽  
Success Rate ◽  
Revision Surgery ◽  
Conductive Hearing Loss ◽  
Successful Outcome ◽  
Hearing Results ◽  
Gap Closure ◽  
Primary Procedure ◽  
Conductive Hearing

AbstractBackground:Stapedotomy produces the best hearing results of any otological operation. However, in a small number of cases the air–bone gap is not successfully closed, or conductive hearing loss recurs.Objective:To investigate the proportion of cases in the senior author's series which required revision surgery and to determine the medium to long term success rate of surgery, taking into account the results of revision surgery.Methods:Review of a series of 233 primary stapedotomy operations and 100 revision procedures carried out by one surgeon over a 20-year period.Results:Closure of the air–bone gap to within 10 dB was achieved in 80 per cent of cases following the primary procedure. Fifteen per cent of patients developed a recurrence of conductive hearing loss. When the results of revision surgery were taken into account, the proportion of ears with a mean air–bone gap of less than 10 dB was 86 per cent. However, of the patients undergoing revision surgery, air–bone gap closure to within 10 dB was only achieved in 52 per cent of cases.Conclusion:The best chance of obtaining a successful outcome in stapedotomy is to achieve this for the first procedure. However, revision surgery does increase the medium to long term success rate.

scholarly journals Management of secretory otitis media: a prospective randomised study comparing medical management with early surgical intervention

2019 ◽  
Vol 5 (4) ◽  
pp. 883
Author(s):  
Rajprakash D. Y. ◽  
Sithananda Kumar Venkatesan R. ◽  
Alisulthan A. R. ◽  
Aravindhan V. ◽  
Mothilal K. B.
Keyword(s):  
Hearing Loss ◽  
Otitis Media ◽  
Pure Tone ◽  
Conductive Hearing Loss ◽  
Adenoid Hypertrophy ◽  
Secretory Otitis Media ◽  
Randomised Study ◽  
Conductive Hearing ◽  
Prospective Randomised Study

<p class="abstract"><strong>Background:</strong> Secretory otitis media is the most common cause of conductive hearing loss in children. Though self-limiting recurrent disease can cause speech and language delay, cognitive impairment and behavioural problems in the long term. This is a prospective study of the epidemiological profile, predisposing factors, clinical profile of secretory otitis media. This study also compares the conservative treatment with early surgical Treatment in Patient with secretory otitis media.</p><p class="abstract"><strong>Methods:</strong> The study is a prospective randomised study of patients presenting with conductive hearing loss diagnosed by pure tone audiometry. The patients were randomized into two groups of 25 patients each. The medical management arm received antihistamines and decongestants and the surgical arm patient underwent myringotomy with grommet insertion. Patients with adenoid hypertrophy underwent adenoidectomy as an additional procedure. The patients were followed up regularly and where evaluated at the end of 12 months for symptomatic improvement and hearing improvement by Pure Tone Audiogram and impedance audiogram.  </p><p class="abstract"><strong>Results:</strong> The most common age group affected was between 5-15 yrs with hard of hearing and aural fullness being the most common presenting complaint. Eustachian tube dysfunction with adenoid hypertrophy was the most common precipitating factor (68%) followed by allergy and gastro esophageal reflux disease. Compared to medical treatment which resulted in a successful treatment outcome in 40% of patients, cases which underwent surgical treatment had successful outcome in 70% of cases.</p><p class="abstract"><strong>Conclusions:</strong> Surgical management in the form of adenoidectomy/myringotomy with grommet insertion has better long term outcome in terms of hearing impairment and disease relapse and recurrence.</p>

scholarly journals Unilateral Conductive Hearing Loss Disrupts the Developmental Refinement of Binaural Processing in the Rat Primary Auditory Cortex

2021 ◽  
Vol 15 ◽  
Author(s):  
Jing Liu ◽  
Xinyi Huang ◽  
Jiping Zhang
Keyword(s):  
Hearing Loss ◽  
Auditory Cortex ◽  
Conductive Hearing Loss ◽  
Spatial Perception ◽  
Primary Auditory Cortex ◽  
Binaural Hearing ◽  
Adult Rats ◽  
Binaural Processing ◽  
Binaural Interaction ◽  
Conductive Hearing

Binaural hearing is critically important for the perception of sound spatial locations. The primary auditory cortex (AI) has been demonstrated to be necessary for sound localization. However, after hearing onset, how the processing of binaural cues by AI neurons develops, and how the binaural processing of AI neurons is affected by reversible unilateral conductive hearing loss (RUCHL), are not fully elucidated. Here, we determined the binaural processing of AI neurons in four groups of rats: postnatal day (P) 14–18 rats, P19–30 rats, P57–70 adult rats, and RUCHL rats (P57–70) with RUCHL during P14–30. We recorded the responses of AI neurons to both monaural and binaural stimuli with variations in interaural level differences (ILDs) and average binaural levels. We found that the monaural response types, the binaural interaction types, and the distributions of the best ILDs of AI neurons in P14–18 rats are already adult-like. However, after hearing onset, there exist developmental refinements in the binaural processing of AI neurons, which are exhibited by the increase in the degree of binaural interaction, and the increase in the sensitivity and selectivity to ILDs. RUCHL during early hearing development affects monaural response types, decreases the degree of binaural interactions, and decreases both the selectivity and sensitivity to ILDs of AI neurons in adulthood. These new evidences help us to understand the refinements and plasticity in the binaural processing of AI neurons during hearing development, and might enhance our understanding in the neuronal mechanism of developmental changes in auditory spatial perception.

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