{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,12]],"date-time":"2026-03-12T06:17:13Z","timestamp":1773296233602,"version":"3.50.1"},"reference-count":37,"publisher":"Acoustical Society of America (ASA)","issue":"4","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2010,10,1]]},"abstract":"<jats:p>Subclinical conductive hearing losses (CHLs) can affect otoacoustic emissions and therefore limit their potential in the assessment of the cochlear function. Theoretical considerations to estimate a minor CHL from DPOAE measurements [Kummer et al. (2006). HNO\u200854, 457\u2013467] are evaluated experimentally. They are based on the fact, that the level difference of the stimulus tones L1 and L2 for optimal excitation of the inner ear is given by L1=aL2+b. A CHL is presumed to attenuate both L1 and L2 to the same extent such that excitation of the inner ear is no longer optimal. From the change of L1 that is necessary to restore optimal excitation of the inner ear and thus to produce maximal DPOAE levels, the CHL can be estimated. In 10 guinea pig ears an experimental CHL was produced, quantified by determination of compound action potential (CAP) thresholds at 8 kHz (CHLCAP) and estimated from DPOAE measurements at 8 kHz (CHLDPOAE). CHLs up to 12 dB could be assessed. CHLDPOAE correlated well with CHLCAP (R=0.741, p=0.0142). Mean difference between CHLDPOAE and CHLCAP was 4.2\u00b12.6\u2002dB. Estimation of minor CHL from DPOAE measurements might help to increase the diagnostic value of DPOAEs.<\/jats:p>","DOI":"10.1121\/1.3474898","type":"journal-article","created":{"date-parts":[[2010,10,19]],"date-time":"2010-10-19T13:15:29Z","timestamp":1287494129000},"page":"1845-1852","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":6,"title":["Quantitative estimation of minor conductive hearing loss with distortion product otoacoustic emissions in the guinea pig"],"prefix":"10.1121","volume":"128","author":[{"given":"Bernhard","family":"Olzowy","sequence":"first","affiliation":[{"name":"Ludwig Maximilians University of Munich Medical Center Department of Otorhinolaryngology, Head and Neck Surgery, , Marchioninistr. 15, 81377 Munich, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christoph","family":"Deppe","sequence":"additional","affiliation":[{"name":"Ludwig Maximilians University of Munich Walter Brendel Center of Experimental Medicine, Institute of Surgical Research, , Marchioninistr. 15, 81377 Munich, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Warangkana","family":"Arpornchayanon","sequence":"additional","affiliation":[{"name":"Ludwig Maximilians University of Munich Walter Brendel Center of Experimental Medicine, Institute of Surgical Research, , Marchioninistr. 15, 81377 Munich, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Martin","family":"Canis","sequence":"additional","affiliation":[{"name":"Ludwig Maximilians University of Munich Medical Center Department of Otorhinolaryngology, Head and Neck Surgery, , Marchioninistr. 15, 81377 Munich, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sebastian","family":"Strieth","sequence":"additional","affiliation":[{"name":"Ludwig Maximilians University of Munich Medical Center Department of Otorhinolaryngology, Head and Neck Surgery, , Marchioninistr. 15, 81377 Munich, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Kummer","sequence":"additional","affiliation":[{"name":"Ludwig Maximilians University of Munich Medical Center Department of Otorhinolaryngology, Head and Neck Surgery, , Marchioninistr. 15, 81377 Munich, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"231","published-online":{"date-parts":[[2010,10,18]]},"reference":[{"key":"2023072022162736700_c1","doi-asserted-by":"publisher","first-page":"589","DOI":"10.1288\/00005537-199506000-00006","article-title":"The effects of chronic otitis media with effusion on the measurement of transiently evoked otoacoustic emissions","volume":"105","year":"1995","journal-title":"Laryngoscope"},{"key":"2023072022162736700_c2","doi-asserted-by":"publisher","first-page":"189","DOI":"10.1016\/S0378-5955(99)00201-4","article-title":"Middle ear influence on otoacoustic emissions. 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