Hearing impairment other diagnostic studies: Difference between revisions
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==Other Diagnostic Studies== | ==Other Diagnostic Studies== | ||
Within 14 days of symptom onset in patients with sudden hearing loss, clinicians should obtain, or refer to a clinician who can obtain, [[audiometry]] as soon as possible to confirm the diagnosis of [[Sensorineural hearing loss|sudden sensorineural hearing loss]]. There are several techniques of performing audiometry, including pure tone audiometry (PTA), speech audiometry, visual reinforcement audiometry (VRA), and play audiometry (PA).<ref name="pmid31369359">{{cite journal| author=Chandrasekhar SS, Tsai Do BS, Schwartz SR, Bontempo LJ, Faucett EA, Finestone SA | display-authors=etal| title=Clinical Practice Guideline: Sudden Hearing Loss (Update). | journal=Otolaryngol Head Neck Surg | year= 2019 | volume= 161 | issue= 1_suppl | pages= S1-S45 | pmid=31369359 | doi=10.1177/0194599819859885 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=31369359 }}</ref><ref name="pmid332536102">{{cite journal| author=Nieman CL, Oh ES| title=Hearing Loss. | journal=Ann Intern Med | year= 2020 | volume= 173 | issue= 11 | pages= ITC81-ITC96 | pmid=33253610 | doi=10.7326/AITC202012010 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=33253610 }}</ref> | |||
===Audiogram=== | ===Audiogram=== | ||
The quietest sound you can hear at different frequencies is plotted on an audiogram to reflect your ability to hear at different frequencies. The range of normal human hearing (from the softest audible sound to the loudest comfortable sound) is so great that the audiogram must be plotted using a logarithmic scale. This large normal range, and the different amounts of hearing loss at different frequencies, make it virtually impossible to accurately describe the amount of hearing loss in simple terms such as percentages or the rankings above. | The quietest sound you can hear at different frequencies is plotted on an audiogram to reflect your ability to hear at different frequencies. The range of normal human hearing (from the softest audible sound to the loudest comfortable sound) is so great that the audiogram must be plotted using a logarithmic scale. This large normal range, and the different amounts of hearing loss at different frequencies, make it virtually impossible to accurately describe the amount of hearing loss in simple terms such as percentages or the rankings above. | ||
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===HINT=== | ===HINT=== | ||
Another method for determining hearing loss, is the Hearing in Noise Test (HINT). HINT technology was developed by the [http://www.hei.org/ House Ear Institute], and is intended to measure an ability to understand speech in quiet and noisy environments. Unlike pure-tone tests, where only one ear is tested at a time, HINT evaluates hearing using both ears simultaneously (binaural), as binaural hearing is essential for communication in noisy environments, and for sound localization. | Another method for determining hearing loss, is the Hearing in Noise Test (HINT). HINT technology was developed by the [http://www.hei.org/ House Ear Institute], and is intended to measure an ability to understand speech in quiet and noisy environments. Unlike pure-tone tests, where only one ear is tested at a time, HINT evaluates hearing using both ears simultaneously (binaural), as binaural hearing is essential for communication in noisy environments, and for sound localization. | ||
'''<big>Genetic tests</big>''' | |||
[[Genetic testing]] may be considered to be a powerful tool for addressing hearing impairment in [[children]]. Genetic testing is defined as the analysis of human [[DNA]] in order to detect heritable-related mutations. | |||
==References== | ==References== | ||
Revision as of 10:43, 16 April 2021
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Other Diagnostic Studies
Within 14 days of symptom onset in patients with sudden hearing loss, clinicians should obtain, or refer to a clinician who can obtain, audiometry as soon as possible to confirm the diagnosis of sudden sensorineural hearing loss. There are several techniques of performing audiometry, including pure tone audiometry (PTA), speech audiometry, visual reinforcement audiometry (VRA), and play audiometry (PA).[1][2]
Audiogram
The quietest sound you can hear at different frequencies is plotted on an audiogram to reflect your ability to hear at different frequencies. The range of normal human hearing (from the softest audible sound to the loudest comfortable sound) is so great that the audiogram must be plotted using a logarithmic scale. This large normal range, and the different amounts of hearing loss at different frequencies, make it virtually impossible to accurately describe the amount of hearing loss in simple terms such as percentages or the rankings above.
Measuring hearing loss in terms of a percentage is debatable in terms of effectiveness, and has been compared to measuring weight in inches. Though in specific legal situations, where decibels of loss are converted via a recognized legal formula, one can infer a standardized "percentage of hearing loss" which is suitable for legal purposes only.
HINT
Another method for determining hearing loss, is the Hearing in Noise Test (HINT). HINT technology was developed by the House Ear Institute, and is intended to measure an ability to understand speech in quiet and noisy environments. Unlike pure-tone tests, where only one ear is tested at a time, HINT evaluates hearing using both ears simultaneously (binaural), as binaural hearing is essential for communication in noisy environments, and for sound localization.
Genetic tests
Genetic testing may be considered to be a powerful tool for addressing hearing impairment in children. Genetic testing is defined as the analysis of human DNA in order to detect heritable-related mutations.
References
- ↑ Chandrasekhar SS, Tsai Do BS, Schwartz SR, Bontempo LJ, Faucett EA, Finestone SA; et al. (2019). "Clinical Practice Guideline: Sudden Hearing Loss (Update)". Otolaryngol Head Neck Surg. 161 (1_suppl): S1–S45. doi:10.1177/0194599819859885. PMID 31369359.
- ↑ Nieman CL, Oh ES (2020). "Hearing Loss". Ann Intern Med. 173 (11): ITC81–ITC96. doi:10.7326/AITC202012010. PMID 33253610 Check
|pmid=value (help).