King–Kopetzky syndrome: Difference between revisions
The UK Medical Research Council discontinued the term Obscure Auditory Disfuntion OAD in 2008 in favour of including these issues as adult APD |
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'''King-Kopetzky syndrome''' is an auditory disability which appears as clinically as a “normal” hearing threshold. |
'''King-Kopetzky syndrome''' is an auditory disability which appears as clinically as a “normal” hearing threshold. |
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It is also known as [[Auditory processing disorder |auditory processing disorder (APD)]] <ref name="therole">{{cite journal |author=Stephens D, Zhao F |title=The role of a family history in King Kopetzky Syndrome (obscure auditory dysfunction) |journal=Acta Otolaryngol. |volume=120 |issue=2 |pages=197–200 |year=2000 |month=March |pmid=11603771 |doi=10.1080/000164800750000900 }}</ref> or ''auditory disability with normal hearing (ADN)'', |
It is also known as [[Auditory processing disorder |auditory processing disorder (APD)]] <ref name="therole">{{cite journal |author=Stephens D, Zhao F |title=The role of a family history in King Kopetzky Syndrome (obscure auditory dysfunction) |journal=Acta Otolaryngol. |volume=120 |issue=2 |pages=197–200 |year=2000 |month=March |pmid=11603771 |doi=10.1080/000164800750000900 }}</ref> or ''auditory disability with normal hearing (ADN)'', |
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The main reported disability is difficulty in hearing speech in the presence of background noise.<ref name="PubMed">{{cite journal |author=Borg E, Stephens D |title=King-Kopetzky syndrome in the light of an ecological conceptual framework |journal=Int J Audiol |volume=42 |issue=6 |pages=312–8 |year=2003 |month=September |pmid=14570238 |doi=10.3109/14992020309101323 }}</ref> This is in conjunction with the finding of normal hearing test results. |
The main reported disability is difficulty in hearing speech in the presence of background noise.<ref name="PubMed">{{cite journal |author=Borg E, Stephens D |title=King-Kopetzky syndrome in the light of an ecological conceptual framework |journal=Int J Audiol |volume=42 |issue=6 |pages=312–8 |year=2003 |month=September |pmid=14570238 |doi=10.3109/14992020309101323 }}</ref> This is in conjunction with the finding of normal hearing test results. King-Kopetzky syndrome patients will have a worse Social Hearing Handicap index (SHHI),indicating they suffer a significant degree of speech-hearing disability.<ref name="det">{{cite journal |author=Zhao F, Stephens D |title=Determinants of speech-hearing disability in King-Kopetzky syndrome |journal=Scand Audiol |volume=25 |issue=2 |pages=91–6 |year=1996 |pmid=8738633 }}</ref> |
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The name for the condition was coined in homour of the individuals who first described the condition (Samuel J. Kopetzky in 1948) and who first discussed the aetiological factors behind it (P.F.King in 1954).r |
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ef> {{cite web|url = http://www.noiseandhealth.org/article.asp?issn=1463-1741;year=2003;volume=5;issue=20;spage=55;epage=62;aulast=Stephens|title = Is there an association between noise exposure and King Kopetzky Syndrome?|journal = Noise and Health|accessdate = 31 July 2010}} </ref> |
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It was found that King-Kopetzky syndrome patients will have a worse Social Hearing Handicap index (SHHI),indicating they suffer a significant degree of speech-hearing disability.<ref name="det">{{cite journal |author=Zhao F, Stephens D |title=Determinants of speech-hearing disability in King-Kopetzky syndrome |journal=Scand Audiol |volume=25 |issue=2 |pages=91–6 |year=1996 |pmid=8738633 }}</ref> |
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==Causes== |
==Causes== |
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Revision as of 21:55, 31 July 2010
King-Kopetzky syndrome is an auditory disability which appears as clinically as a “normal” hearing threshold. It is also known as auditory processing disorder (APD) [1] or auditory disability with normal hearing (ADN), The main reported disability is difficulty in hearing speech in the presence of background noise.[2] This is in conjunction with the finding of normal hearing test results. King-Kopetzky syndrome patients will have a worse Social Hearing Handicap index (SHHI),indicating they suffer a significant degree of speech-hearing disability.[3] The name for the condition was coined in homour of the individuals who first described the condition (Samuel J. Kopetzky in 1948) and who first discussed the aetiological factors behind it (P.F.King in 1954).r ef> "Is there an association between noise exposure and King Kopetzky Syndrome?". Noise and Health. Retrieved 31 July 2010. </ref>
Causes
It seems that somatic anxiety and situations of stress may be determinants of speech-hearing disability.[3][4]
Some studies indicated an increased prevalence of a family history of hearing impairment in these patients. The pattern of results is suggestive that King-Kopetzky patients may be related to conditions of autosomal dominant inheritance.[1][5][6]
Subcategories
It was found that based on sensitized measures of auditory dysfunction and on psychological assessment, Subjects could be subdivided into seven subcategories[7] .
1- middle ear dysfunction
2- mild cochlear pathology
3- central/medial olivocochlear efferent system (MOCS) auditory dysfunction
4- purely psychological problems
5- multiple auditory pathologies
6- combined auditory dysfunction and psychological problems
7- unknown
Different subgroups may represent different pathogenic and aetiological factors. Thus, subcategorization provides further understanding of the basis of King-Kopetzky syndrome, and hence may guide the rehabilitative management of these patients.
Recent research
There has been some interest in testing that King-Kopetzky syndrome might be an early stage of late onset familial hearing impairment by Professor Dafydd Stephens, F Zhao and Angeles Espeso at the Welsh Hearing Institute, Cardiff University.
See also
- Auditory processing disorder
- Hearing impairment
- List of eponymous diseases
- cocktail party effect
- Professor Dafydd Stephens
References
- ^ a b Stephens D, Zhao F (2000). "The role of a family history in King Kopetzky Syndrome (obscure auditory dysfunction)". Acta Otolaryngol. 120 (2): 197–200. doi:10.1080/000164800750000900. PMID 11603771.
{{cite journal}}: Unknown parameter|month=ignored (help) - ^ Borg E, Stephens D (2003). "King-Kopetzky syndrome in the light of an ecological conceptual framework". Int J Audiol. 42 (6): 312–8. doi:10.3109/14992020309101323. PMID 14570238.
{{cite journal}}: Unknown parameter|month=ignored (help) - ^ a b Zhao F, Stephens D (1996). "Determinants of speech-hearing disability in King-Kopetzky syndrome". Scand Audiol. 25 (2): 91–6. PMID 8738633.
- ^ King K, Stephens D (1992). "Auditory and psychological factors in 'auditory disability with normal hearing'". Scand Audiol. 21 (2): 109–14. PMID 1641572.
- ^ Liu XZ, Xu L, Newton V. "Audiometric configuration in non-syndromic genetic hearing loss". J Audiol Med. 3: 99–106.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Van Camp G, Willems PJ, Smith RJH (1997). "Non-syndromic hearing impairment: unparalleled heterogeneity". Am J Genet. 60: 758–64.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Zhao F, Stephens D (2000). "Subcategories of patients with King-Kopetzky syndrome". Br J Audiol. 34 (4): 241–56. PMID 10997453.
{{cite journal}}: Unknown parameter|month=ignored (help)