Patterns of hearing loss in non-explosive blast injury of the ear

1997 ◽  
Vol 111 (12) ◽  
pp. 1137-1141 ◽  
Author(s):  
Gilead Berger ◽  
Yehuda Finkelstein ◽  
Shabtai Avraham ◽  
Mordehai Himmelfarb
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Conductive Hearing Loss ◽  
Bone Conduction ◽  
Ossicular Chain ◽  
Blast Injury ◽  
Sensorineural Hearing ◽  
Single Frequency ◽  
A Prospective Study ◽  
Conductive Hearing

AbstractA prospective study of hearing loss in 120 cases with non-explosive blast injury of the ear, gathered over a six-year period, is presented. Thirty-three (27.5 per cent) patients had normal hearing, 57 (47.5 per cent) conductive hearing loss, 29 (24.2 per cent) mixed loss and one (0.8 per cent) had pure sensorineural loss. The severity of conductive hearing loss correlated with the size of the eardrum perforation; only a marginal difference was found between water and air pressure injuries, with respect to this type of hearing loss. Of all locations, perforations involving the posterior-inferior quadrant of the eardrum were associated with the largest air-bone gap. Audiometric assessment revealed that none of the patients suffered ossicular chain damage. Three patterns of sensorineural hearing loss were identified: a dip at a single frequency, two separate dips, and abnormality of bone conduction in several adjacent high frequencies. Involvement of several frequencies was associated with a more severe hearing loss than a dip in a single frequency. Healing of the perforation was always accompanied by closure of the air-bone gap, while the recovery of the sensorineural hearing loss was less favourable.

Audiometric Bing Test for Determination of Minimum Masking Levels for Bone-Conduction Tests

1974 ◽  
Vol 39 (2) ◽  
pp. 148-152 ◽  
Author(s):  
Frederick N. Martin ◽  
Ernest C. Butler ◽  
Paul Burns
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Conductive Hearing Loss ◽  
Bone Conduction ◽  
Sensorineural Hearing ◽  
The Other ◽  
Occlusion Effect ◽  
Conductive Hearing

Occlusion effects were determined and compared on three groups of subjects (20 normal hearers, 20 with conductive hearing loss, and 20 with sensorineural hearing loss). As in previous studies, the occlusion effects of the conductive group were clearly different from those of the other two groups, especially at 250 Hz. Two procedures are discussed which use the principle of the Bing test to determine when and how to compensate for the occlusion effect while masking for bone conduction.

Sensorineural Hearing Loss in Stapedial Otosclerosis

1984 ◽  
Vol 93 (1) ◽  
pp. 13-16 ◽  
Author(s):  
G. G. Browning ◽  
S. Gatehouse
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Random Sample ◽  
Older Patients ◽  
Conductive Hearing Loss ◽  
Bone Conduction ◽  
Sensorineural Hearing ◽  
Control Subjects ◽  
Significant Difference ◽  
Conductive Hearing

Controversy exists as to whether individuals with stapedial otosclerosis have elevated bone conduction thresholds due to cochlear involvement by the focus. A comparison was made between the Carhart-corrected bone conduction thresholds in 45 unoperated, non-noise-exposed individuals with stapedial otosclerosis and the thresholds in a matched random sample of the population with no conductive hearing loss. No consistent, significant difference was discerned. It is considered that individuals with stapedial otosclerosis do not in general have elevated bone conduction thresholds compared with control subjects. However, there was a suggestion that there may be a small, progressive elevation of bone conduction thresholds in older patients.

scholarly journals Hearing loss in patients with head and neck cancer post chemoradiotherapy

2020 ◽  
Vol 6 (5) ◽  
pp. 830
Author(s):  
Raies Ahmad Begh ◽  
Disha Koul ◽  
Aditiya Saraf ◽  
Parmod Kalsotra
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Head And Neck ◽  
Conductive Hearing Loss ◽  
Hearing Threshold ◽  
Neck Surgery ◽  
Common Adverse Event ◽  
Sensorineural Hearing ◽  
Single Frequency ◽  
Conductive Hearing

<p class="abstract"><strong>Background:</strong> The aim of the study was to study incidence of sensorineural hearing loss (SNHL) and conductive hearing loss (CHL) in patients receiving chemoradiation for head and neck malignancies and to ascertain the pattern of hearing loss in different frequencies.</p><p class="abstract"><strong>Methods:</strong> The present study was conducted on 100 patients of histopathologically proven head and neck malignancy admitted in Department of Otorhinolaryngology and head and neck surgery, SMGS Hospital, GMC Jammu during a time period of July 2017 to June 2019.Inclusion criteria for our study were patients with primary site of malignancy at nasal cavity, nasopharynx, oral cavity, oropharynx, larynx, hypopharynx and salivary glands undergoing chemo-radiotherapy. Hearing loss was calculated with reference to the pre-treatment hearing threshold. A decrease of &gt;20 dB in single frequency or &gt;10 dB in two or more consecutive frequency was considered significant.  </p><p class="abstract"><strong>Results:</strong> In the study, 65 patients (65%) developed sensorineural hearing loss and 22 patient (22%) developed conductive hearing loss during course of treatment. However, 7 patients (7%) developed a mixed type hearing loss during course of treatment.</p><p class="abstract"><strong>Conclusions:</strong> Although chemo radiation affects all the frequencies significantly but SNHL is markedly seen in higher frequencies. Conductive hearing loss is also a common adverse event after radiotherapy to the upper head and neck area.</p>

Laser stapedotomy

1999 ◽  
Vol 113 (5) ◽  
pp. 413-416 ◽  
Author(s):  
Yousef K. Shabana ◽  
Hassan Allam ◽  
C. Brahe Pedersen
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Inner Ear ◽  
Conductive Hearing Loss ◽  
Bone Conduction ◽  
Stapes Surgery ◽  
Sensorineural Hearing ◽  
Hearing Results ◽  
The Difference ◽  
Conductive Hearing

AbstractThirty-four ears with conductive hearing loss due to otosclerosis were operated upon using the laser stapedotomy technique. Audiological results were compared with the results of 316 non-laser stapedotomies. The post-operative air-bone gap, calculated as the difference between the postoperative air and bone conduction levels, was smaller with the laser stapedotomy group. Also, the bone conduction showed significant improvement with the use of laser.Significant sensorineural hearing loss was not found in any of the laser-treated patients. According to our results, we concluded that laser is of benefit in stapes surgery for improving the hearing results and minimizing the inner ear trauma.

scholarly journals Assess the hearing of contralateral ear in patients with unilateral chronic squamosal otitis media

2020 ◽  
Vol 6 (5) ◽  
pp. 886
Author(s):  
Raphella Khan ◽  
Anirudh Kasliwal
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Otitis Media ◽  
Conductive Hearing Loss ◽  
Sensorineural Hearing ◽  
Retraction Pocket ◽  
Mixed Hearing Loss ◽  
Contralateral Ear ◽  
The Right ◽  
Conductive Hearing

<p class="abstract"><strong>Background:</strong> Chronic squamosal otitis media can occur due to many conditions affecting the middle ear. Most common sign of developing a chronic squamosal otitis media is formation of a retraction pocket in the tympanic membrane leading to further development of a cholesteatoma and if not treated properly, may lead to development of dangerous complication in the affected ear. These etiological factors may also affect the other ear. It is therefore very necessary to assess and diagnose the contralateral ear, so that the disease can be intervened and treated at the right time, to prevent any deterioration in hearing of the contralateral ear.</p><p class="abstract"><strong>Methods:</strong> The prospective study was done in 100 patients with unilateral chronic squamosal otitis media, where the contra lateral ear was examined and assessed for any hearing loss.  </p><p class="abstract"><strong>Results:</strong> We found hearing loss in the contra lateral ear ranging from mild conductive hearing loss to sensorineural hearing loss with the maximum patients with mild conductive hearing loss (42%) and lowest in sensorineural hearing loss (1%).  </p><p class="abstract"><strong>Conclusions:</strong> In our study, 76 patients were seen with conductive hearing loss. Out of that, 42% patients were seen with mild conductive hearing loss, 30% with moderate conductive hearing loss and 4% with severe conductive hearing loss. 20% patients were seen with normal hearing. 3% patients were seen with mixed hearing loss and only 1% patient was seen with sensorineural hearing loss in contralateral ear.</p>

A Smartphone-Based Weber Test May Discriminate between a Conductive and a Sensorineural Hearing Loss

2019 ◽  
Vol 24 (4) ◽  
pp. 191-196
Author(s):  
Omer J. Ungar ◽  
Ophir Handzel ◽  
Oren Cavel ◽  
Yahav Oron
Keyword(s):  
Emergency Department ◽  
Hearing Loss ◽  
Clinical Study ◽  
Sensorineural Hearing Loss ◽  
Sensitivity And Specificity ◽  
Tuning Fork ◽  
Conductive Hearing Loss ◽  
Sensorineural Hearing ◽  
Unilateral Hearing Loss ◽  
Conductive Hearing

Objective: The aim of this paper was to compare the accuracy of a smartphone-based Weber test (SPWT) with the traditional tuning fork Weber test (TFWT) in identifying and differentiating between sensorineural hearing loss (SNHL) and conductive hearing loss (CHL). Study Design: We conducted a prospective, noncontrolled clinical study. Methods: Sixty patients referred to the emergency department due to unilateral hearing loss (HL) were enrolled. They were asked to press a single uncovered smartphone on their forehead and conduct a Weber test by means of the smartphone’s vibration application. The results were compared to the TFWT. Results: Twenty-six (43%) patients were diagnosed with a SNHL, and 34 (57%) with a CHL. The SPWT was in agreement with the TFWT (at a frequency of 512 Hz) in 55 (92%) patients. The sensitivity and specificity of the TFWT were 84.6 and 94.1%, respectively. The sensitivity and specificity of the SPWT were 76.9 and 97.1%, respectively. Conclusion: SPWT can serve as an auxiliary diagnostic tool in the absence of a 512-Hz tuning fork to assist in the identification of the type of HL and to potentially hasten the diagnosis and provision of treatment when indicated.

Unilateral Sensorineural Hearing Loss Rehabilitation

1991 ◽  
Vol 105 (6) ◽  
pp. 771-778 ◽  
Author(s):  
D. Bradley Welling ◽  
Michael E. Glasscock ◽  
Charles I. Woods ◽  
Ronald C. Sheffey
Keyword(s):  
Clinical Trial ◽  
Hearing Loss ◽  
Patient Satisfaction ◽  
Sensorineural Hearing Loss ◽  
Selection Criteria ◽  
Conductive Hearing Loss ◽  
Sensorineural Hearing ◽  
Conductive Hearing

The Audiant Bone Conductor has been heralded as an aid for use in conductive hearing loss; however, its possible use in unilateral sensorineural hearing loss (SNHL) has also been proposed. Between July 1987 and July 1989, profound unilateral sensorineural hearing loss has been rehabilitated In 43 patients using the Xomed Audiant Bone Conductor. Patients who were willing to participate in this clinical trial and who were felt to be good contralateral routing of signals (CROS) aid candidates were selected preoperatively. Audiometric followup, selection criteria, patient satisfaction, and complications are discussed.

Sensorineural Hearing Loss in Chronic Ear Surgery

1977 ◽  
Vol 86 (1) ◽  
pp. 3-8 ◽  
Author(s):  
G. D. L. Smyth
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Clinical Evidence ◽  
Bone Conduction ◽  
Ossicular Chain ◽  
Sensorineural Hearing ◽  
Inflammatory Factors ◽  
Speech Discrimination ◽  
Ear Surgery ◽  
Cochlear Damage

The author's series of 3000 consecutive operations of tympanoplasty from 1960 to 1975 were reviewed in regard to the occurrence of sensorineural hearing loss as a consequence of the surgical procedure. Worsening of bone conduction thresholds by 10 dB through the frequencies 500 to 4000 cps, or a 10% reduction in speech discrimination scores were considered significant. Whereas in transcanal tympanoplasty the incidence of cochlear damage was greater in ears when initially the ossicular chain was incomplete, by contrast in combined approach tympanoplasty the risk was greater when the chain was intact initially. It was concluded that cochlear trauma was usually due to 1) the hydraulic effect of excessive stapes manipulation during the removal of disease, and 2) the development of a perilymph fistula. The unpredictable predisposing threat of cochlear fragility due to genetic and inflammatory factors was emphasized and the poor results of tympanoplasty in tympanosclerosis were underlined. The current methods of treating sensorineural hearing loss after tympanoplasty were enumerated and discussed. It was concluded that although those aimed at improving labyrinthine circulation had theoretical backing, there is as yet little experimental or clinical evidence to support the claims of their protagonists.

scholarly journals Effects of Radiotherapy on Auditory and Vestibular Function

2014 ◽  
Vol 6 (4) ◽  
pp. 1-5
Author(s):  
Sachin Sharad Nilakhe
Keyword(s):  
Hearing Loss ◽  
Radiation Therapy ◽  
Sensorineural Hearing Loss ◽  
Head And Neck ◽  
Conductive Hearing Loss ◽  
Vestibular Dysfunction ◽  
Sensorineural Hearing ◽  
Head And Neck Malignancies ◽  
Number Of Patients ◽  
Conductive Hearing

ABSTRACT Introduction Radiotherapy either primary or adjuvant, is a commonly used modality of treatment in head and neck malignancies. The audiovestibular apparatus is often within the fields of radiation treatment, and hearing loss is a possible complication. This study was undertaken to assess the audiovestibular functions in patients undergoing radiation therapy for head and neck malignancies to determine the type and severity of hearing loss and vestibular dysfunction following radiation therapy. Materials and methods Fifty patients with head and neck malignancies reported to the malignant disease treatment center of INHS Asvini and received radiotherapy as a primary modality of treatment or in combination with surgery during the period May 2003 to Sep 2004 were included in this study. None of these patients had prior treatment by chemotherapy. Conclusion A significant number of patients who were subjected to radiation therapy for head and neck malignancies develop conductive hearing loss is predominant in the immediate postradiation period. Conductive hearing loss is reversible and improves with the conservative line of treatment. Sensorineural hearing loss more commonly affects the higher frequencies and is more common in older patients. Sensorineural hearing loss is more common when radiation doses exceed 60 Gy. There is no conclusive evidence of vestibular dysfunction in patients undergoing radiotherapy for head and neck cancers.

Atresia and Sudden Sensorineural Hearing Loss

2012 ◽  
Vol 23 (04) ◽  
pp. 241-248
Author(s):  
Steven P. Smith ◽  
Simon Milov ◽  
Joel A. Goebel
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Conductive Hearing Loss ◽  
Hearing Aid ◽  
Sudden Sensorineural Hearing Loss ◽  
Sensorineural Hearing ◽  
Bone Anchored Hearing Aid ◽  
The Right ◽  
Conductive Hearing

This case study summarizes findings in an adult male, aged 57, who presented to the Adult Audiology Clinic with aural atresia in the right ear resulting in a conductive hearing loss and a sudden sensorineural hearing loss in the left ear. Treatment options included reconstruction surgery in the right ear, bone anchored hearing aid in the right ear to overcome the conductive hearing loss, bone anchored hearing aid in the left ear for single sided deafness, and intratympanic steroid injections in the left ear to salvage hearing.This case study highlights that when a patient is educated on all available options the patient is then able to make a decision comfortable to him and to help improve his hearing.

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