Pure tone audiometry as assessed by a commercially-available mobile phone application compared to formal audiometry
Lauren Evoy DavisTiffany P. HwaSteven J. EliadesDouglas C. BigelowMichael J. RuckensteinJason A. Brant
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Keywords:
Audiogram
Hearing test
Gold standard (test)
Pure tone
Pure tone audiometry
Audiometer
Objective To lind out the situations of the hearing loss,which differ from the people without hearing impair- ment in hearing threshold and the balance between ears on their level.Methods There are 100 patients and 100 healthy adult people being tested by amplaid 455 pure-tone Audiometer.Results There are obviously different between two groups,and the thresholds of deaf people are often bigger.Conclusion The reasons of those are of the disturbance with neuron-psychological factors.The test reveals that it is important to be careful of the effects coming from the neuropsychological factors of patients when analyzing audiogram.
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Objectives: To assess the effectiveness of hearing application as an initial hearing assessment in adult, to analyse and compare between the Uhear hearing application and conventional audiometer of its usage and to make recommendation about the use the hearing application as the screening tools for the underprivileged.
Methodology: We recruited 140 patients at Hospital Ampang. Patients with otorrhea and cognitive impairment were excluded. All patients completed Uhear test in clinic and underwent standard audiogram.
Results: The mean PTA (Pure tone average) of all ears measured by the standard audiogram was 32 dB. The PTA of all ears measured by Uhear was 15 dB less compared to the standard audiogram (p40 dB HL) documented on the audiogram, 34 had a PTA≤40 dB by Uhear testing. This translates to sensitivity of 54%. Of the 206 ears without moderate or worse hearing loss documented on the audiogram, one had moderate or worse hearing loss by Uhear testing. This translates to a specificity of 99%. Conclusion: Uhear hearing application is a conceivable screening test to rule out significant hearing loss. In Kappa analysis, it is in the fair range in almost all frequencies. Portability and ease of use make it appropriate to use for hearing screening for the underprivileged.
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Despite its high prevalence in the aged, hearing loss has been poorly investigated. Audiometry is the gold standard for evaluation of hearing loss, but large-scale use of the procedure involves operational difficulties. Thus, self-report may be an alternative. To determine if a single global question is valid for use in epidemiologic research. Systematic review. A search of the medical literature from 1990 to 2004 was performed using MEDLINE and LILACS. The references of the articles identified in the electronic search were also reviewed. Study Selection and Data Extraction: The articles that compared the results obtained with self-report to a single global question with those obtained by pure tone audiometry were selected. Data about the prevalence of hearing loss, and sensitivity, specificity and predictive values were extracted. Data Synthesis: Ten longitudinal studies were included. A single global question seems to be an acceptable indicator of hearing loss, sensitive and reasonably specific, mainly if the hearing loss is identified as the tone average that includes frequencies up to 2 or 4 kHz, at 40 dBHL level, in the best ear. A single global question shows good performance in identifying older persons with hearing loss and can be recommended for an epidemiologic study if audiometric measurements cannot be performed.
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Pure tone audiometry
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To compare the results of audiogram and distortion product otoacoustic emissions (DPOAEs) parameters between staffs working in a noisy environment and normal subjects.Hearing function of 32 noise-exposed workers and 18 reference subjects were assessed with DPOAEs and pure-tone audiometry. Results were compared among three groups: 1) ears of reference subjects, 2) audiometrically normal ears of noise-exposed subjects, and 3) audiometrically abnormal ears of noise-exposed subjects.DPOAEs parameters, statistically significant difference were found between group 1 and 2 and group 1 and 3 at all frequencies. Statistically significant differences in pass rate for DPOAEs at 4-6 kilohertz (kHz) were also found between group 1 and 2.DPOAEs are more sensitive than audiometry to detect pre-symptomatic inner ear damage. It may play a role as screening and monitoring test for noise-exposed workers.
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AbstractA simple-to-use classification system is presented for expressing the hearing loss resulting from acoustic trauma. The system is based upon the implications for social hearing as seen in the pure tone air conduction hearing test, which is classified according to specifically segmented areas of the audiogram. A study of the audiometric results of 102 ex-army men with ACT and 25 controls with normal hearing included a detailed questionnatire to relate the patients' functional complaints to their audiograms, and the clinical picture was then completed by the administration of speech audiometry tests both in quiet and in backgroands of various signal-to-noise ratios. Three main severity categories of hearing impairment were established. These are described and illustrated.
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Pure tone
Hearing test
QUIET
Pure tone audiometry
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Audiogram
Hearing test
Gold standard (test)
Pure tone
Pure tone audiometry
Audiometer
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Aim: To assess the hearing status of the study subjects in terms of degree and type of hearing loss, and establish the burden of this disability in the society. Materials and methods: This is a prospective study conducted in patients who attend our OPD. After an otorhinolaryngeal examination, all the patients were subjected to pure tone audiometry using MAICA-MA52 audiometer. Results: Our study comprises 1012 males (64%) and 563 females (36%). Out of this, about 15% have conductive deafness and 42% have sensorineural hearing loss. About 29% suffer from mild hearing loss, 26% moderate and 11% severe hearing loss. The alarming information is that about 5% have total hearing loss of Sudden Sensorineural type (SSNHL). Conclusion: Pure tone audiometry is cost effective and easy to perform. Early diagnosis and timely intervention will reduce the morbidity of deafness in our country. Hence it is necessary to identify and treat sudden sensorineural hearing loss and noise induced hearing loss at an early stage.
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Screening Audiometry: Case History and Otoscopic Examination. Audiometric Techniques for Industrial Screening. The Audiogram and its Categorisation. Action and Referral: Noise Induced Hearing Loss and the Role of the Physician. Diagnostic Audiometry. Rehabilitation and Compensation. Organisation of the Audiometric Programme: The Audiometer and the Test Environment. Hearing Conservation. Personal Hearing Protection. Background Science: Anatomy and Physiology of the Ear. Common Causes of Hearing Loss. Glossary. References. Index. Plus: Questionnaires, sample record sheets, and other useful templates for running hearing conservation programmes.
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This study investigated the feasibility of using Distortion Product Otoacoustic Emission (DPOAE) testing as an adjunct to pure-tone screening audiometry in the annual medical surveillance environment commonly found in the South African platinum mining industry. Signal-to-noise (S/N) ratios of the DPOAE test results conducted at two venues by a trained technician, the degree of hearing loss in platinum employees, the correlation between screening audiometry hearing threshold levels (HTLs) and DPOAE levels, and the ability of the DPOAE test to identify early NIHL in these employees were evaluated. Most S/N ratios were within the acceptable levels of greater than 10 dBSPL, hearing levels were within the range of hearing that provide valid DPOAE levels, signifi cant correlations were found between the HTLs from the screening audiometry and DPOAE testing, and in 73% of the 100 ears tested early NIHL could be identifi ed before the pure-tone audiogram indicated evidence of hearing loss. This indicates that DPOAEs would be a feasible and useful an adjunct to pure-tone audiometry in this setting.
Audiogram
Pure tone audiometry
Noise-induced hearing loss
Otoacoustic emission
Hearing test
Pure tone
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<p class="abstract"><strong><span lang="EN-US">Background:</span></strong>Hearing loss is an invisible injury that has been viewed as an acceptable by-product of military service. It is imperative to detect hearing loss at early stage to take immediate remedial measures. In Indian armed forces the current method of assessment of hearing is primarily by Free Field Hearing which is obsolete and has numerous shortcomings. We contucted a study using free iOS application to detect hearing loss. The objectives of the study were to investigate the validity and reproducibility of app based hearing assement and free field hearing with clinical pure tone audiometer as gold standard. It is cross sectional intra-subject comparative study</p><p class="abstract"><strong><span lang="EN-US">Methods:</span></strong>The study was conducted at CHAF where 200 patients were accrued. Hearing assessment was carried out by Pure Tone Audiometry (PTA) which is gold standard. Thereafter these patients were subjected to hearing assessment by using windows application “freehearingtestsoftware.com” and by free field hearing (FFH). </p><p class="abstract"><strong><span lang="EN-US">Results:</span></strong>Hearing assessment by FFH and hearing check app was compared with PTA. Hearing check app was found to be more sensitive than FFH (98% and 73%). Both modalities had high specificity (95% and 99%). The test retest reproducibility measured with Pearson correlation coefficient was high (0.99) with hearing check app.</p><p class="abstract"><strong><span lang="EN-US">Conclusions:</span></strong>Smart phone application like Hearing check app is a cheap and effective way to assess hearing with reasonable accuracy. It’s high sensitivity and high test retest reproducibility makes it an ideal tool for screening and early detection of hearing loss replacing out-dated free field hearing.</p><p class="abstract"><span lang="EN-US"> </span></p>
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