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Article: Tympanometric characteristics of Chinese school-aged children

TitleTympanometric characteristics of Chinese school-aged children
Authors
Issue Date2008
PublisherLippincott Williams & Wilkins. The Journal's web site is located at http://www.ear-hearing.com
Citation
Ear And Hearing, 2008, v. 29 n. 2, p. 158-168 How to Cite?
AbstractOBJECTIVES: To investigate the tympanometric characteristics of Chinese school-aged children with normal middle ear function. DESIGN: Measurements were made for four tympanometric variables [peak, compensated static acoustic admittance (peak Ytm); equivalent ear canal volume (Vec); tympanometric width (TW); and tympanometric peak pressure] from 278 Chinese children aged between 6 and 15 yrs. Data from the right ear were compared across age groups with those of Chinese young adults and with Western children of comparable ages. Data from the left ear were used to examine specificity using tympanometric screening criteria suggested in the present study. RESULTS: The developmental pattern in tympanometric variables found with the Chinese school-aged children in the study was similar to that found with white children in Western studies. Increasing age was accompanied by an increase in peak Ytm and Vec values, a decrease in TW values, and less negative and less varied tympanometric peak pressure values. The lower limit of peak Ytm 90% range of the Chinese school-aged children in the study was lower and their TW values were wider than those of white children. Age-specific data also suggested that the upper Vec limits of children between 6 and 7 yrs of age differed from those of older children. Racial differences in peak Ytm and TW values were noted, in that the Chinese school-aged children had a lower peak Ytm limit and wider TW values than white children. The use of ASHA 1997 guidelines for identifying ears for referral with respect to Chinese school-aged children may therefore not be highly sensitive and specific. Gender differences noted in peak Ytm and Vec values were too small to be of clinical significance. CONCLUSIONS: To increase the accuracy of tympanometry in determining ears to be referred for further assessment, the use of the tympanometric characteristics observed in the Chinese school-aged children in the present study (i.e., peak Ytm lower limit <0.2 mmhos and Vec upper limit >1.5 cm) should be considered in addition to ASHA 1997 tympanometric screening guidelines. © 2008 Lippincott Williams & Wilkins, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/175299
ISSN
2015 Impact Factor: 2.517
2015 SCImago Journal Rankings: 1.794
References

 

DC FieldValueLanguage
dc.contributor.authorWong, LLNen_US
dc.contributor.authorAu, JWYen_US
dc.contributor.authorWan, IKKen_US
dc.date.accessioned2012-11-26T08:58:02Z-
dc.date.available2012-11-26T08:58:02Z-
dc.date.issued2008en_US
dc.identifier.citationEar And Hearing, 2008, v. 29 n. 2, p. 158-168en_US
dc.identifier.issn0196-0202en_US
dc.identifier.urihttp://hdl.handle.net/10722/175299-
dc.description.abstractOBJECTIVES: To investigate the tympanometric characteristics of Chinese school-aged children with normal middle ear function. DESIGN: Measurements were made for four tympanometric variables [peak, compensated static acoustic admittance (peak Ytm); equivalent ear canal volume (Vec); tympanometric width (TW); and tympanometric peak pressure] from 278 Chinese children aged between 6 and 15 yrs. Data from the right ear were compared across age groups with those of Chinese young adults and with Western children of comparable ages. Data from the left ear were used to examine specificity using tympanometric screening criteria suggested in the present study. RESULTS: The developmental pattern in tympanometric variables found with the Chinese school-aged children in the study was similar to that found with white children in Western studies. Increasing age was accompanied by an increase in peak Ytm and Vec values, a decrease in TW values, and less negative and less varied tympanometric peak pressure values. The lower limit of peak Ytm 90% range of the Chinese school-aged children in the study was lower and their TW values were wider than those of white children. Age-specific data also suggested that the upper Vec limits of children between 6 and 7 yrs of age differed from those of older children. Racial differences in peak Ytm and TW values were noted, in that the Chinese school-aged children had a lower peak Ytm limit and wider TW values than white children. The use of ASHA 1997 guidelines for identifying ears for referral with respect to Chinese school-aged children may therefore not be highly sensitive and specific. Gender differences noted in peak Ytm and Vec values were too small to be of clinical significance. CONCLUSIONS: To increase the accuracy of tympanometry in determining ears to be referred for further assessment, the use of the tympanometric characteristics observed in the Chinese school-aged children in the present study (i.e., peak Ytm lower limit <0.2 mmhos and Vec upper limit >1.5 cm) should be considered in addition to ASHA 1997 tympanometric screening guidelines. © 2008 Lippincott Williams & Wilkins, Inc.en_US
dc.languageengen_US
dc.publisherLippincott Williams & Wilkins. The Journal's web site is located at http://www.ear-hearing.comen_US
dc.relation.ispartofEar and Hearingen_US
dc.rightsEar and Hearing. Copyright © Lippincott Williams & Wilkins.-
dc.subject.meshAcoustic Impedance Tests - Methods - Statistics & Numerical Dataen_US
dc.subject.meshAdolescenten_US
dc.subject.meshAge Factorsen_US
dc.subject.meshAsian Continental Ancestry Group - Ethnologyen_US
dc.subject.meshChilden_US
dc.subject.meshCross-Cultural Comparisonen_US
dc.subject.meshFemaleen_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshSex Factorsen_US
dc.subject.meshSpeech Perception - Physiologyen_US
dc.titleTympanometric characteristics of Chinese school-aged childrenen_US
dc.typeArticleen_US
dc.identifier.emailWong, LLN: llnwong@hku.hken_US
dc.identifier.authorityWong, LLN=rp00975en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1097/AUD.0b013e318164aa61en_US
dc.identifier.pmid18595183-
dc.identifier.scopuseid_2-s2.0-43149107439en_US
dc.identifier.hkuros142045-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-43149107439&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume29en_US
dc.identifier.issue2en_US
dc.identifier.spage158en_US
dc.identifier.epage168en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridWong, LLN=7402091891en_US
dc.identifier.scopusauthoridAu, JWY=36837821600en_US
dc.identifier.scopusauthoridWan, IKK=6701722382en_US

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