Clinical applications of transcranial bone conduction attenuation in children

1994 ◽  
Vol 108 (10) ◽  
pp. 834-836 ◽  
Author(s):  
Iyngaran Vanniasegaram ◽  
Jane Bradley ◽  
Sue Bellman
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Bone Conduction ◽  
Clinical Applications ◽  
Sensorineural Hearing ◽  
Common Belief ◽  
Sound Perception ◽  
Significant Attenuation ◽  
The Difference

AbstractIt is a common belief that there is no significant transcranial attenuation across the skull by bone conduction (BC). In 32 children with proven unilateral sensorineural hearing loss the unmasked bone thresholds were measured on each side. There was a significant attenuation of BC at 4 kHz. Transcranial attenuation of BC at 4 kHz may explain the difference in sound perception between the two ears when bone conduction amplification is used. Further research should be undertaken to identify the better cochlea in mixed hearing losses.

A CLINICO-PATHOLOGICAL & AUDIOLOGICAL STUDY OF SENSORINEURAL HEARING LOSS IN PATIENTS WITH CHRONIC OTITIS MEDIA :-IS THERE A SIGNIFICANT CORRELATION ?

2020 ◽  
pp. 80-82
Author(s):  
Mukherjee Ankita Atin ◽  
Vasudha Kesarwani ◽  
Shivaam Kesarwaani
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Otitis Media ◽  
Pearson Correlation ◽  
Bone Conduction ◽  
Chronic Otitis Media ◽  
Sensorineural Hearing ◽  
Cross Sectional ◽  
Duration Of Disease ◽  
The Difference

Introduction: Chronic otitis media (COM) is one of the most common disorder in eld of ENT. Hearing loss as a sequel of chronic otitis media (COM) is often conductive, but there has been a controversy in different studies with association of sensorineural hearing loss and COM . The aim of the study was to determine the association between COM and sensorineural hearing loss (SNHL) and to assess the inuence of patient's age, duration of disease, type of COM and presence of cholesteatoma on the presence of SNHL. Material & Methods: This was a cross sectional descriptive study of 100 subjects between the age group of 5 and 50 years. Patients having unilateral chronic otitis media of both mucosal and squamosal types, who met the inclusion criteria of unilateral otorrhea, normal contralateral ear on otoscopy, with no history of head trauma or ear surgery or familial hearing loss were selected. All patients were evaluated clinically and audiologically. The age, type, duration of disease and presence of cholestetoma is correlated with degree of sensorineural hearing loss. Interaural differences in bone conduction thresholds at 500 Hz, 1 kHz, 2 kHz and 4 kHz were also noted. Data analysis was performed using SPSS 13 with independent-samples t-test, Pearson correlation test, and twotailed analysis. A p ≤ 0.05 was considered statistically signicant. Results: Signicant higher BC thresholds were found in the affected ear than in the normal ear for each frequency (p < 0.001), which increased with increasing frequency (4.9 dB at the 500 Hz and 9.85 dB at the 4000 Hz). A strongly signicant correlation was observed between patients' age and the degree of SNHL (r = 0.401, p < 0.001) but no signicant correlation was in duration of the disease (r = 0.108, p > 0.05). There was no relationship between presence of cholesteatoma with SNHL across all frequencies (p < 0.05). Conclusion: A signicant association between SNHL and COM was found in this study. The difference in BC thresholds increased with increasing frequency. Patients' age was signicantly correlated with the degree of SNHL, but no signicant association was observed between SNHL with duration of disease. Presence of cholesteatoma and development of SNHL were found to be correlated in this study.

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.

The Efficacy of Concurrent or Sequential Intravenous and Intratympanic Steroid for Idiopathic Sudden Sensorineural Hearing Loss

2018 ◽  
Vol 23 (5) ◽  
pp. 277-284 ◽  
Author(s):  
Chia-Huei Chu ◽  
Shiau-Ru Chiou ◽  
Mao-Che Wang ◽  
An-Suey Shiao ◽  
Tzong-Yang Tu ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Sequential Therapy ◽  
Sudden Sensorineural Hearing Loss ◽  
Sensorineural Hearing ◽  
Concurrent Treatment ◽  
Treatment Groups ◽  
Sequential Group ◽  
The Difference ◽  
Hearing Outcomes

Objective: The purpose of this retrospective study was to investigate the difference in treatment outcomes for patients with idiopathic sudden sensorineural hearing loss (SSNHL) undergoing concurrent or sequential intravenous (IV) and intratympanic (IT) steroid therapies. Methods: Patients with idiopathic SSNHL admitted to Taipei Veterans Hospital from August 2011 to August 2012 were enrolled. Patients were treated with both IV dexamethasone 5 mg b.i.d. for 5 days, then tapered over 6 days, and IT injections of dexamethasone 5 mg daily. The administration of IV and IT steroids was given either concurrently or sequentially (IV steroid was administered from days 1–5 followed by IT steroid treatment starting on day 4 or day 5). The hearing outcomes of the concurrent and sequential groups were analyzed. Results: Overall, after ≥2 months following treatment, across frequencies ranging from 250 to 8,000 Hz and pure-tone average (PTA) assessments, hearing improvements were similar between treatment groups, except at the frequencies of 4,000 and 8,000 Hz where the concurrent treatment group had greater hearing gain than the sequential group (4,000 Hz: 30.68 ± 28.96 vs. 14.52 ± 24.06 dB, respectively, p = 0.042; 8,000 Hz: 22.62 ± 23.59 vs. 7.67 ± 21 dB, p = 0.030). Across frequencies and PTA assessments, a similar percentage of patients had ≥20-dB gains in hearing compared with patients treated sequentially, except at 8,000 Hz where a greater percentage of patients in the concurrent group (57.1%) than the sequential group (23.3%) (p = 0.014) had ≥20-dB hearing gains. Conclusion: The findings suggest that both concurrent and sequential treatment improve hearing in patients with idiopathic SSNHL, and that concurrent treatment may show greater benefit than sequential therapy, particularly at high frequencies.

scholarly journals Does Drilling Induce Hearing Loss after Modified Radical Mastoidectomy? A Retrospective Study

2020 ◽  
Vol 42 (3) ◽  
pp. 38-41
Author(s):  
Yogesh Neupane ◽  
Bijaya Kharel ◽  
Heempali Dutta
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Bone Conduction ◽  
Sensorineural Hearing ◽  
Radical Mastoidectomy ◽  
Modified Radical Mastoidectomy ◽  
The Mean ◽  
Sensory Neural ◽  
Mastoid Surgery ◽  
Sensory Neural Hearing Loss

Introduction Incidence of sensory neural hearing loss following mastoid surgery varies from 1.2 – 4.5%.There are various causes for postoperative sensorineural hearing loss during mastoid surgery. This study aims to identify whether there is any correlation between drilling and postoperative sensory neural hearing loss. MethodsA retrospective study was conducted in the Department of ENT from January 2018 to June 2019. A total number of 68 patients above five years of age who underwent modified radical mastoidectomy for chronic otitis media squamous were included. Revision surgery, preoperative sensorineural hearing loss, injury to the ossicular chain during surgery, patients with lack of follow up or doubtful reports in mentally challenged were excluded from the study. The average bone conduction threshold was calculated from 500, 1000, 2000, 4000 Hz and compared using the Wilcoxon signed-rank test. ResultsThere were 43 males and 25 females in the study with a median age of 23.5 years (16-55). The mean preoperative bone conduction threshold in the four frequencies of 500 Hz, 1kHz, 2kHz, 4kHz were -2.06dB, -2.06dB, 3.31dB, 4.63 dB respectively and the mean postoperative bone conduction thresholds were 1.03, 1.32, 5.29, 4.04 respectively. There was a decline of mean of 3.09 dB and 3.38dB only at the low-frequencies (500Hz and 1kHz) BC threshold respectively which were statistically significant, whereas at higher frequency there was no decline in average postoperative BC threshold. ConclusionThere is no definite role of drill in inducing hearing loss and if present other causes of hearing loss should be sought in postoperative sensorineural hearing loss.

Prevalence and classification of asymmetric forms of sensorineural hearing loss in older age group

2021 ◽  
Vol 20 (5) ◽  
pp. 8-12
Author(s):  
T. Yu. Vladimirova ◽  
◽  
A. B. Martynova ◽  
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Hearing Aids ◽  
Hearing Threshold ◽  
Older Age ◽  
Sensorineural Hearing ◽  
Age Group ◽  
The Difference ◽  
The Right

The significance of asymmetric sensorineural hearing loss (ASNHL) is due to a special approach to diagnosis, followed by the process of hearing aids and auditory rehabilitation. Currently, there is no standard audiometric criterion for determining the forms of asymmetry, which significantly affects the assessment of the prevalence of ASNHL. The study aimed to assess the prevalence and classification of ASNHL forms in the older age group using two methods of calculation: 1) the difference in the average hearing threshold at speech frequencies (in the range of 0,5–4 kHz) ≥15 dB was detected in 14,14% of cases; 2) the different degree of hearing loss, according to the International classification, in the right and left ear was 35,98%. In most cases, asymmetry was manifested by bilateral sensorineural hearing loss of varying severity, prevailing in the group of long-livers – 82,6%. Given the potentially high prevalence of asymmetry depending on the audiological criterion, the results of the work are a reason for further research in the development of a unified method for verifying a clinically significant form of ASNHL.

Sensorineural hearing loss following induction chemotherapy plus concurrent chemoradiotherapy for advanced nasopharyngeal carcinoma

2015 ◽  
Vol 129 (8) ◽  
pp. 767-772 ◽  
Author(s):  
V Atchariyasathian ◽  
K Pruegsanusak ◽  
S Wongsriwattanakul
Keyword(s):  
Hearing Loss ◽  
Nasopharyngeal Carcinoma ◽  
Sensorineural Hearing Loss ◽  
Induction Chemotherapy ◽  
Concurrent Chemoradiotherapy ◽  
Bone Conduction ◽  
Pure Tone Audiometry ◽  
Hearing Preservation ◽  
Sensorineural Hearing ◽  
Choice Of Treatment

AbstractObjective:To compare the incidence of sensorineural hearing loss between those treated with docetaxel, cisplatin and 5-fluorouracil induction chemotherapy followed by carboplatin concurrent chemoradiotherapy and those treated with conventional concurrent chemoradiotherapy for advanced nasopharyngeal carcinoma.Methods:Serial pure tone audiometry was conducted in 36 nasopharyngeal carcinoma patients who were randomised into 2 groups. The first group received docetaxel, cisplatin and 5-fluorouracil induction chemotherapy followed by carboplatin concurrent chemoradiotherapy. The second group received conventional concurrent chemoradiotherapy.Results:The incidence of sensorineural hearing loss at speech frequency in the first group was 10 per cent and in the second group was 50 per cent (p = 0.0027). Bone conduction thresholds were significantly increased after completion of the treatment at 2–4 kHz in the first group and at all frequencies in the second group.Conclusion:The docetaxel, cisplatin and 5-fluorouracil induction chemotherapy regimen followed by concurrent chemoradiotherapy was associated with a lower incidence of sensorineural hearing loss than conventional concurrent chemoradiotherapy. This regimen may be the preferred choice of treatment for hearing preservation.

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.

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.

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