000000482 001__ 482 000000482 005__ 20260304124700.0 000000482 0247_ $$2DOI$$a10.6083/M4KH0K9B 000000482 037__ $$aETD 000000482 245__ $$aThe use of otoacoustic emissions to predict ototoxic-induced hearing changes 000000482 260__ $$bOregon Health and Science University 000000482 269__ $$a2009 000000482 336__ $$aThesis 000000482 502__ $$bM.P.H. 000000482 520__ $$aOtotoxic medications put millions of U.S. patients at risk for hearing loss each year, with older adults especially vulnerable due to preexisting impairment. Although high‑frequency pure‑tone audiometry is the gold standard for monitoring ototoxicity, it requires reliable behavioral responses that many patients cannot provide. Distortion‑product otoacoustic emissions (DPOAEs), which reflect outer hair cell function, may offer an objective alternative, yet standardized protocols and clear accuracy estimates are lacking. This prospective observational study evaluated the sensitivity and specificity of DPOAEs in detecting ototoxic hearing shifts by comparing DPOAE‑derived metrics with repeated high‑frequency audiometry in cisplatin‑treated patients. A discriminant model incorporating baseline hearing, drug dose, and DPOAE measures accurately predicted significant hearing change. These findings support the development of DPOAE‑based monitoring strategies to improve early detection of ototoxicity and reduce associated communication difficulties. 000000482 540__ $$fCC BY 000000482 542__ $$fIn copyright - single owner 000000482 650__ $$aAudiometry$$015214 000000482 650__ $$aHearing Loss$$034564 000000482 650__ $$aDrug Therapy$$018086 000000482 650__ $$aCisplatin$$016750 000000482 650__ $$aAged$$014351 000000482 650__ $$aOtotoxicity$$013210 000000482 650__ $$aFrail Elderly$$029070 000000482 650__ $$aOtoacoustic Emissions, Spontaneous$$029672 000000482 650__ $$aDrug-Related Side Effects and Adverse Reactions$$040408 000000482 650__ $$aAudiometry, Pure-Tone$$015216 000000482 691__ $$aSchool of Medicine$$041369 000000482 692__ $$aDepartment of Public Health and Preventive Medicine$$041444 000000482 7001_ $$aReavis, Kelly$$uOregon Health and Science University$$041354 000000482 8564_ $$950d90814-f289-4009-8fa8-b724e026b65a$$s247842$$uhttps://digitalcollections.ohsu.edu/record/482/files/483_etd.pdf$$ePublic$$25b6cdcd1a691853ab4ce4580b09245d9$$31 000000482 905__ $$a/rest/prod/zp/38/wc/61/zp38wc617 000000482 909CO $$ooai:digitalcollections.ohsu.edu:482$$pstudent-work 000000482 956__ $$aGet Accessible Copy$$uhttps://ohsu.libwizard.com/f/requestaccessibledocument 000000482 980__ $$aTheses and Dissertations