BRAIN STEM EVOKED RESPONSE AUDIOMETRIC FINDINGS IN POST NEONATAL MENINGITIS

Background: Hearing loss is an important complication of meningitis. We usually advise BERA study for detection of hearing loss particularly sensorineural type. BERA is superior to pure tone audiometry in malingering patients. Objective: To evaluate the sensorineural hearing following meningitis in children between 1 month to 2 years. Material and methods: This was a cross sectional, observational study of children aged 1month to 2 years who were admitted in Department of Paediatrics, R. G Kar. Medical college, Kolkata during the period of January 2017-June 2018, the study includes 30 babies who were suffering from Meningitis. Result: We found that out of 30 patients 23(76.7%) patients had no hearing loss, 3(10.0%) patients had mild hearing loss, (3.3%) patient had moderate hearing loss and 3(10.0%) patients had severe hearing loss in right ear. Conclusion: BERA is a helpful tool for assessing the severity of Hearing loss in post-meningitis patient. It is a useful test for screening of SNHL, especially in the young children and infants in whom other conventional methods may not be of much use.

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A study of sensorineural hearing loss in hypothyroidism patients and its association with thyroid stimulating hormone levels

International Journal of Otorhinolaryngology and Head and Neck Surgery ◽

10.18203/issn.2454-5929.ijohns20205058 ◽

2020 ◽

Vol 6 (12) ◽

pp. 2198

Author(s):

Srirangaprasad K. ◽

Pruthvi Raj S.

Keyword(s):

Hearing Loss ◽

Pure Tone ◽

Pure Tone Audiometry ◽

Thyroid Function Test ◽

Thyroid Stimulating Hormone ◽

Common Symptom ◽

Medical College ◽

Mild Degree ◽

Moderate Hearing Loss ◽

Tsh Levels

Background: The most common symptom of hypothyroidism regarding ear, nose and throat is hearing insufficiency accompanied with cochleovestibular symptoms such as tinnitus, dizziness.Methods: This was a hospital based observational clinical study conducted in Rajarajeswari medical college between December 2016 to June 2018. Patients with hypothyroidism attending department of ENT-HNS that satisfied the inclusion and exclusion criteria were included in the study. Patients were subjected to pure tone audiometry, thyroid function test after detailed history and physical examination. PTA was recorded and average of 500 Hz, 1 kHz and 2 kHz were taken as the pure tone average.Results: 150 patients were included in the study. Mean age of patients with hearing loss was 37.2 years. 84.3% were females. 41 patients presented to us with unilateral hearing loss and 10 patients had bilateral hearing loss. 43 (84.3%) patients had mild degree of hearing loss, 8 (15.7%) had moderate hearing loss. Patients with hearing loss had altered TSH levels. Significant correlation (p<0.001) was found between hearing loss and duration of hypothyroidism, mean TSH levels.Conclusions: It was found that hypothyroidism affects the hearing producing hearing impairment, ranging from mild to moderate in severity and had significant correlation between duration of hypothyroidism and mean TSH levels with the severity of hearing loss.

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A Smartphone-Based Approach to Screening for Sudden Sensorineural Hearing Loss: Cross-Sectional Validity Study

JMIR mhealth and uhealth ◽

10.2196/23047 ◽

2020 ◽

Vol 8 (11) ◽

pp. e23047

Author(s):

Heng-Yu Haley Lin ◽

Yuan-Chia Chu ◽

Ying-Hui Lai ◽

Hsiu-Lien Cheng ◽

Feipei Lai ◽

...

Keyword(s):

Hearing Loss ◽

Sensorineural Hearing Loss ◽

Gold Standard ◽

Pure Tone ◽

Pure Tone Audiometry ◽

Sudden Sensorineural Hearing Loss ◽

Sensorineural Hearing ◽

Clinical Settings ◽

Cross Sectional ◽

Scale Difference

Background Sudden sensorineural hearing loss (SSNHL) is an otologic emergency that warrants urgent management. Pure-tone audiometry remains the gold standard for definitively diagnosing SSNHL. However, in clinical settings such as primary care practices and urgent care facilities, conventional pure-tone audiometry is often unavailable. Objective This study aimed to determine the correlation between hearing outcomes measured by conventional pure-tone audiometry and those measured by the proposed smartphone-based Ear Scale app and determine the diagnostic validity of the hearing scale differences between the two ears as obtained by the Ear Scale app for SSNHL. Methods This cross-sectional study included a cohort of 88 participants with possible SSNHL who were referred to an otolaryngology clinic or emergency department at a tertiary medical center in Taipei, Taiwan, between January 2018 and June 2019. All participants underwent hearing assessments with conventional pure-tone audiometry and the proposed smartphone-based Ear Scale app consecutively. The gold standard for diagnosing SSNHL was defined as the pure-tone average (PTA) difference between the two ears being ≥30 dB HL. The hearing results measured by the Ear Scale app were presented as 20 stratified hearing scales. The hearing scale difference between the two ears was estimated to detect SSNHL. Results The study sample comprised 88 adults with a mean age of 46 years, and 50% (44/88) were females. PTA measured by conventional pure-tone audiometry was strongly correlated with the hearing scale assessed by the Ear Scale app, with a Pearson correlation coefficient of .88 (95% CI .82-.92). The sensitivity of the 5–hearing scale difference (25 dB HL difference) between the impaired ear and the contralateral ear in diagnosing SSNHL was 95.5% (95% CI 87.5%-99.1%), with a specificity of 66.7% (95% CI 43.0%-85.4%). Conclusions Our findings suggest that the proposed smartphone-based Ear Scale app can be useful in the evaluation of SSNHL in clinical settings where conventional pure-tone audiometry is not available.

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AMBANG PENDENGARAN RATA–RATA PADA PENDERITA DIABETES MELITUS di POLIKLINIK ENDOKRINOLOGI RSUP PROF. Dr. R. D. KANDOU MANADO

e-CliniC ◽

10.35790/ecl.3.1.2015.6510 ◽

2015 ◽

Vol 3 (1) ◽

Author(s):

Febrina R. Wuwung ◽

Ora I. Palandeng ◽

Olivia C. P. Pelealu

Keyword(s):

Diabetes Mellitus ◽

Hearing Loss ◽

Pure Tone ◽

Hearing Threshold ◽

Pure Tone Audiometry ◽

The Body ◽

Cross Sectional ◽

Patients With Diabetes ◽

Cross Sectional Design ◽

Diabetes Melitus

Abstract: Diabetes mellitus is a group of chronic metabolic disease which can affect nearly every organ system in the body. Complications of this disease are diverse and include retinopathy, nepropathy and neuropathy. It has a high prevalence and continued to increase. The relationship between diabetes mellitus and hearing loss have been studied. This study aimed to obtain the average of hearing threshold in patients with diabetes mellitus. This was a descriptive observational study with a cross sectional design. Total 38 diabetes mellitus patients were included in the study. Hearing threshold obtained based on air conduction pure tone audiometry average at 500, 1000, 2000, and 4000 Hz. The results showed that subjects were 65.8% females and 32.4% males. There were 9 subjects (23.6%) with normal hearing, 24 subjects (63.2%) with bilateral hearing loss, and 5 subjects (13.2%) with unilateral hearing loss. Of the 29 subjects with hearing loss, the levels were mild and moderate. None of the subjects had moderately severe, severe, or profound. Conclusion: The majority of subjects in this study had hearing loss.Keywords: diabetes mellitus, hearing threshold, pure tone audiometryAbstrak: Diabetes melitus merupakan suatu kelompok penyakit metabolik kronik yang dapat mempengaruhi hampir setiap sistem organ dalam tubuh. Komplikasi penyakit ini beragam, termasuk retinopati, nefropati dan neuropati. Prevalensinya cukup tinggi dan diperkirakan akan terus meningkat. Terdapat beberapa penelitian yang menghubungkan diabetes melitus dan gangguan pendengaran. Penelitian ini bertujuan untuk mengetahui ambang pendengaran rata – rata pada penderita diabetes melitus. Penelitian ini merupakan penelitian deskriptif observasional dengan desain penelitian potong lintang. Sampel total ialah 38 pasien diabetes melitus. Ambang pendengaran rata – rata diperoleh berdasarkan hantaran udara audiometri nada murni rata-rata pada frekuensi 500, 1000, 2000, dan 4000 Hz. Hasil penelitian memperlihatkan bahwa subjek penelitian 65,8% perempuan dan 34,2% laki – laki. Terdapat 9 orang (23,6%) yang mempunyai pendengaran normal, 24 orang (63,2 %) mengalami gangguan pendengaran bilateral dan 5 orang (13,2%) dengan gangguan pendengaran unilateral. Dari 29 subjek penelitian dengan gangguan pendengaran mengalami gangguan pendengaran kategori ringan dan sedang. Tidak ditemukan subjek penelitian dengan gangguan pendengaran kategori sedang berat, berat atau sangat berat. Simpulan: Mayoritas subjek penelitian mengalami gangguan pendengar.Kata kunci: ambang pendengaran, audiometri nada murni, diabetes melitus

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HEARING EVALUATION OF NIGERIAN PRISON INMATES: A CROSS-SECTIONAL SURVEY

Kanem Journal of Medical Sciences ◽

10.36020/kjms.2020.1402.002 ◽

2020 ◽

Vol 14 (2) ◽

pp. 106-114

Author(s):

Abdullahi Musa Kirfi ◽

◽

Mohammed Bello Fufore ◽

Garba Mohammed Mainasara ◽

Abdulrazak Ajiya ◽

...

Keyword(s):

Hearing Loss ◽

Pure Tone ◽

Hearing Threshold ◽

Pure Tone Audiometry ◽

Control Group ◽

Prison Inmates ◽

Impaired Hearing ◽

Cross Sectional ◽

The Mean ◽

The Right

Background: Prisoners, due to confinement are isolated from contact with the society and access to many of the facilities, including medical care. This study aimed to evaluate the hearing threshold of inmates of Kaduna convict prison. Method: It was a cross-sectional study of prison inmates at the Kaduna convict prison between April 2017 and February 2019. Ethical approvals were obtained from relevant bodies and all consented inmates aged 18 – 55years in the Kaduna convict prison were enrolled. Equal number of control matched for age and gender were enrolled from the communities in Kaduna North Local Government Area. Data were collated using a structured questionnaire. A diagnostic Pure Tone Audiometry was performed to assess their hearing threshold. Statistical Package for Social Sciences (SPSS) version 20.0 was used for analysis. Results: Four hundred and thirty inmates and equal number of control group were enrolled. The mean age for the inmates and controls were 30.2±7.5 and 30.4±8.02 years respectively. There were 383 males and 47 females in both groups. Among the 860 ears of the inmates, 238(27.7%) ears had hearing loss while in the control group, 95/ (11.1%) ears had impaired hearing. Conductive hearing loss was the commonest among the inmates 111(46.6%) while sensorineural was commoner among the controls 57(60.0%). The mean pure tone average among the inmates was 25.6±11.3dBHL and 26.1±11.2dBHL on the right and left ears respectively while in the control group, it was 18.4±7.8dBHL on the right and 17.9±7.9dBHL on the left. Conclusion: This study revealed that hearing loss was more prevalent among prison inmates than the general population. In majority of the inmates, the hearing loss was mild, conductive and mostly affecting all the frequencies.

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Noise Induced Hearing Loss among Aircrews of Bangladesh Air Force

Journal of Armed Forces Medical College Bangladesh ◽

10.3329/jafmc.v16i1.53827 ◽

2021 ◽

Vol 16 (1) ◽

pp. 12-15

Author(s):

Iftekharul Islam ◽

Md Abdullah Al Jobair ◽

Mohammad Ahmed Ahsan ◽

Mushtaq Ahmad ◽

Mohammad Delwar Hossain ◽

...

Keyword(s):

Hearing Loss ◽

Air Force ◽

Pure Tone ◽

Prolonged Exposure ◽

Age Groups ◽

Hearing Threshold ◽

Pure Tone Audiometry ◽

Noise Induced Hearing Loss ◽

Cross Sectional ◽

Military Pilots

Introduction: Noise-induced hearing loss is a significant, often unrecognized health problem among the military pilots. Advanced aircraft are powerful and more efficient but generate high noise causing noise-induced hearing loss (NIHL) among military pilots. Aim: To determine the prevalence of noise-induced hearing loss among pilots of the Bangladesh Air Force (BAF) and its association with aircraft type and flying hours. Methods: This cross-sectional study was carried out at Central Medical Board (CMB), Bangladesh Air Force (BAF) Dhaka from April 2017 to March 2018. The audiometry was done in the ENT department of CMB, BAF. Pure-tone audiometry was used to measure hearing thresholds and following pure tone frequencies were used for the test: 0.25, 0.5, 1, 2, 3, 4, 6 and 8 kHz. The association between flight hours and the development of noise-induced hearing loss was analyzed in the different age groups. Results: The study revealed NIHL in the aircrew was 16.5% with a higher prevalence among the helicopter pilots (18.6%) as compared with fighter (16.7%) and transport (11.5%) pilots. The left ear was affected in most of the cases than the right ear. Pilots of more than 40 years old and ≥1500 flying hours had a significantly higher hearing threshold compared with other categories. Conclusion: Exposure to noise in aircrew is unavoidable. By avoiding prolonged exposure to loud noise environments and utilization of personal hearing safety devices can prevent noise-induced hearing loss. JAFMC Bangladesh. Vol 15, No 1 (June) 2020: 12-15

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Hearing Loss Among Excessive Mobile Phone Users; A Cross Sectional Study At Bahawal Victoria And Civil Teaching Hospitals Bahawalpur

Journal of Bahria University Medical and Dental College ◽

10.51985/jbumdc2018074 ◽

2018 ◽

Vol 09 (01) ◽

pp. 21-24

Author(s):

Muhammad Asim Shafique ◽

Muhammad Fahim ◽

Masood Akhtar ◽

Muhammad Adnan Anwar ◽

Anum Jamshed

Keyword(s):

Hearing Loss ◽

Mobile Phone ◽

Pure Tone ◽

Bone Conduction ◽

Pure Tone Audiometry ◽

Test Group ◽

Teaching Hospitals ◽

Control Group ◽

P Value ◽

Cross Sectional

Objective: To assess the hearing loss among the subjects using excessive mobile phone. Methodology: 50 subjects were entered for this study with age ranging from 20 to 40 years using mobile phone for more than 5 years. 25 subjects who used mobile phone for less than (<) 60 min /day formed one group, while 25 subjects who used cell phone for more than (>) 60 min /day formed the second group. The hearing levels of all the subjects were tested using Pure Tone Audiometry (PTA). Duration of mobile phone usage was assessed by questionnaires. Results: There was a significant increase (p-value .00006) in the hearing thresholds at all frequencies in air conduction and bone conduction in right ear in test group compared with the control group. Similar result was found in the left ear except for bone conduction at frequency 4 and 6 (kilo hertz) kHz. Excessive use of mobile phone caused Sensory neural hearing loss and the prevalence was 84% in group who used mobile phone for > 60 min / day and 20% in group who used for < 60 min / day. Conclusion: Excessive use of mobile phone may cause increase in pure tone threshold associated with the duration of usage. The use for more than 5 years with more than 60 minutes daily can produce harmful effects on human hearing.

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Role of Hum Test in Diagnosis of Hearing Loss

Birat Journal of Health Sciences ◽

10.3126/bjhs.v4i3.27013 ◽

2020 ◽

Vol 4 (3) ◽

pp. 782-785

Author(s):

Ashish Dhakal ◽

Bikash Lal Shrestha ◽

Sameer Karmacharya ◽

Aakash Pradhan

Keyword(s):

Hearing Loss ◽

Gold Standard ◽

Pure Tone ◽

Pure Tone Audiometry ◽

Neck Surgery ◽

Cross Sectional Study ◽

University Hospital ◽

Sectional Study ◽

Cross Sectional

Introduction: The Hum Test is used by some otolaryngologists as an alternative to the Weber Test to detect the presence and type of acute hearing change; however, its use has not yet been formally validated. Objective: To compare the diagnostic performance of Hum test with Weber test to detect hearing loss taking pure tone audiometry as the gold standard. Methodology: A prospective, cross-sectional study was conducted in the department of Otorhinolaryngology and Head and Neck surgery, Dhulikhel Hospital- Kathmandu University Hospital, from June 2018 to February 2019. Total of 257 patients were enrolled in the study and were subjected to 3 tests: Weber test, Hum test, and pure tone audiometry. Results: When examining patients with hearing loss, sensitivity of Hum test and weber test were 60.3% and 93.8 % respectively. In patients with CHL, sensitivity of Hum test was 55.7% while Weber test was 94.8%. In SNHL, it was 74.6% for Hum test and 90.5% for Weber test. Likewise, according to laterality of disease, sensitivity of Hum test was 58.6% for unilateral hearing loss and 65.2% for bilateral hearing loss. For Weber test it was 96.3% for unilateral and 86.4% for bilateral disease. Conclusion: Hum test is not as sensitive as Weber test in diagnosis of hearing loss both for conductive and sensorineural hearing loss.

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Hearing Loss Inquiry using Audiometry

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.b11510.782s319 ◽

2019 ◽

Vol 8 (2S3) ◽

pp. 811-815

Keyword(s):

Hearing Loss ◽

Clinical Assessment ◽

Pure Tone ◽

Hearing Threshold ◽

Pure Tone Audiometry ◽

Otoacoustic Emission ◽

Research Facility ◽

Cross Sectional Survey ◽

Cross Sectional ◽

Evoked Response Audiometry

The etiology of hearing misfortune is multifactorial which makes the analysis a difficult exercise and frequently an unsolved puzzle. While unadulterated tone audiometry is an obligatory examination, others, for example, research facility and radiology depend on clinical assessment. This current report's on the examination of connection between self-detailed commotion presentation amid relaxation activities and audiological indicators including measured hearing threshold levels (HTL) and tinnitus. The research was conducted by cross sectional survey of 1432 individuals from 11 to 35 years old. Methodology included of a full audiometric assessment including otoscopy, pure tone audiometry (PTA), otoacoustic emission (OAE) and tympanometry, hearing loss investigation, diagnosis, evoked response audiometry radiology, deafness.

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Change in Self-Evaluation of Hearing Status According to Age: A Population-Based Study

Korean Journal of Otorhinolaryngology - Head and Neck Surgery ◽

10.3342/kjorl-hns.2021.00549 ◽

2021 ◽

Vol 64 (12) ◽

pp. 861-867

Author(s):

Seok-Youl Choi ◽

Jee Won Moon ◽

June Choi ◽

Jae-Jun Song ◽

Gi Jung Im ◽

...

Keyword(s):

Hearing Loss ◽

Hearing Aids ◽

Pure Tone ◽

Hearing Threshold ◽

Pure Tone Audiometry ◽

Normal Hearing ◽

Self Report ◽

Hearing Level ◽

Cross Sectional ◽

Self Evaluation

Background and Objectives Self-reported hearing levels determined by self-report questionnaires are not always correlated with the audiometric hearing level. It is necessary to ascertain the subjectively perceived normal hearing threshold to determine the need for hearing aids at the appropriate time. The objective is to identify the level of correlation between the self-reported hearing level and the audiometric hearing level and ascertain the subjectively perceived normal hearing threshold for each age group.Subjects and Method This cross-sectional study, using the data from the Korea National Health and Nutrition Examination Survey V, looked at participants with hearing loss who were aged ≥40 years. Pure tone audiometry was conducted bilaterally. Self-reported hearing level was ascertained via survey enquiring about hearing loss. The level of correlation between self-reported hearing level and audiometric hearing level, age-specific patterns of hear-ing self-evaluation and subjectively perceived normal hearing values at which participants complained of hearing loss were main outcomes.Results Mean audiometric thresholds (MATs) increased with the age and degree of self-reported hearing level. The accuracy of self-reported hearing level compared to the audiometric threshold decreased with age both in the better-ear and worse-ear groups. Younger participants tended to overestimate their hearing impairment, while older participants tended to underestimate it. Subjectively perceived normal hearing thresholds increased with age and they were very close to the MATs for each age group.Conclusion Results can be useful for devising different age-group specific pure tone audi-ometry-based diagnostic criteria for self-reported hearing loss, which can be used to determine the need for hearing aid in a timely manner.

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Hearing assessment in patients with tympanosclerosis with intact tympanic membrane

International Journal of Otorhinolaryngology and Head and Neck Surgery ◽

10.18203/issn.2454-5929.ijohns20200140 ◽

2020 ◽

Vol 6 (2) ◽

pp. 291

Author(s):

Ramya Bandadka ◽

Afshan Tarannum ◽

Narasaiah Dhanapala

Keyword(s):

Hearing Loss ◽

Tympanic Membrane ◽

Incidental Finding ◽

Pure Tone Audiometry ◽

Cross Sectional Study ◽

Hearing Level ◽

Cross Sectional ◽

Medical College ◽

Hearing Assessment ◽

Intact Tympanic Membrane

Background: Tympanosclerosis is an irreversible, though not immutable, end result of any unresolved specific or nonspecific inflammatory disease of middle ear characterized by anatomical distortion resulting in functional impairment. The objective of the study was to assess hearing in patients with tympanosclerosis with intact tympanic membrane (TM) and to correlate degree of hearing loss with respect to site of tympanosclerotic patch on TM.Methods: This cross-sectional study was conducted at Bangalore Medical College and Research Institute, Bangalore during study period from November 2016 to May 2018. Thirty patients enrolled for study were subjected to otoendoscopy, pure tone audiometry and tympanometry. Site of tympanosclerotic patch on tympanic membrane and hearing loss were assessed and correlated statistically. Results: Thirty patients (13-males, 17-females), aged 6–73 years (average-39.5 years) who fulfilled inclusion criteria were included. 7 (23.3%) patients had bilaterally affected ears amounting to 37 tympanosclerotic ears. left ear was commonly affected 14 (46.6%). In most patients, tympanosclerosis of tympanic membrane was an incidental finding with patients being otologically asymptomatic. The locations of tympanosclerotic patch on TM were 9 (24.4%) postero-superior, 7 (18.9%) postero-superior and postero-inferior, 7 (18.9%) antero-inferior, 5 (13.5%) postero-inferior, 3 (8.1%) antero-superior, 3 (8.1%) antero-superior and antero-inferior, 2 (5.4%) antero-inferior and postero-inferior and 1 (2.7%) entire pars tensa. Hearing level ranged from 10-46.6 dBHL (normal to moderate) with majority (91.89%) of patients had hearing within 25 dBHL. 43.3% had conductive hearing loss, 2.7% had sensorineural hearing loss and rest had normal hearing. Correlation of site of tympanosclerotic patch on TM with degree of hearing loss was not statistically significant (p=0.058).Conclusions: Variations in the site of tympanosclerotic patch on TM do not affect degree of hearing loss.

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