{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,21]],"date-time":"2025-10-21T00:45:14Z","timestamp":1761007514133,"version":"build-2065373602"},"reference-count":17,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2016,9,1]],"date-time":"2016-09-01T00:00:00Z","timestamp":1472688000000},"content-version":"vor","delay-in-days":5326,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["aao-hnsfjournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Otolaryngol.--head neck surg."],"published-print":{"date-parts":[[2002,2]]},"abstract":"<jats:sec><jats:title>OBJECTIVES<\/jats:title><jats:p>The goal of the present study was to compare the frequencies of cochlear and noncochlear patterns of distortion\u2010product otoacoustic emissions (DPOAEs) in patients with nonacoustic (non\u2010AN) tumors of the cerebellopontine angle (CPA)\/internal auditory canal with those in patients with acoustic neuroma (AN).<\/jats:p><\/jats:sec><jats:sec><jats:title>STUDY DESIGN AND SETTING<\/jats:title><jats:p>We conducted a prospective study of patients with non\u2010AN internal auditory canal\/CPA tumors treated between 1992 and 1999\u00a0in a tertiary care setting. We collected data on behavioral pure tone average, speech discrimination score, acoustic immittance tests, DPOAEs, and tumor size. DPOAEs were divided into those with a cochlear or a noncochlear pattern. Comparisons were made with a control group of patients with AN of the CPA.<\/jats:p><\/jats:sec><jats:sec><jats:title>RESULTS<\/jats:title><jats:p>Twenty\u2010four patients were included in the study: 12 patients in the non\u2010AN group and 12 patients in the AN group. In the non\u2010AN group, 5 (42%) patients had a cochlear pattern and 7 (58%) had a noncochlear pattern. In the AN group, 7 (58%) patients had a cochlear pattern and 5 (42%) had a noncochlear pattern. The differences between the non\u2010AN and AN groups were statistically significant. In the non\u2010AN group, patients with a cochlear\u2010pattern DPOAE had significantly smaller tumors (<jats:italic>P<\/jats:italic> = 0.03) and a trend (<jats:italic>P<\/jats:italic> = 0.07) toward higher speech discrimination score. Age and pure tone average were not significantly different in the non\u2010AN tumor patients. In the AN group, none of the study parameters were significantly related to the pattern of DPOAE.<\/jats:p><\/jats:sec><jats:sec><jats:title>CONCLUSIONS<\/jats:title><jats:p>ANs appear to differ from other tumors of the CPA in their propensity to cause sensory versus neural hearing loss. A larger series of patients would be useful to confirm these preliminary findings.<\/jats:p><\/jats:sec>","DOI":"10.1067\/mhn.2002.122264","type":"journal-article","created":{"date-parts":[[2003,2,4]],"date-time":"2003-02-04T21:49:09Z","timestamp":1044395349000},"page":"115-120","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Distortion\u2010Product Otoacoustic Emissions in Nonacoustic Tumors of the Cerebellopontine Angle"],"prefix":"10.1002","volume":"126","author":[{"given":"Steven Ross","family":"Mobley","sequence":"first","affiliation":[{"name":"Department of Otolaryngology University of Miami Ear Institute Miami Florida"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Onur","family":"Odabasi","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology University of Miami Ear Institute Miami Florida"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Syed","family":"Ahsan","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology University of Miami Ear Institute Miami Florida"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Glen","family":"Martin","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology University of Miami Ear Institute Miami Florida"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bart","family":"Stagner","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology University of Miami Ear Institute Miami Florida"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fred F.","family":"Telischi","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology University of Miami Ear Institute Miami Florida"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2016,9]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1177\/019459988008800508"},{"key":"e_1_2_1_3_1","first-page":"835","volume-title":"Neurotology","author":"Bartels LJ","year":"1994"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1121\/1.382104"},{"key":"e_1_2_1_5_1","first-page":"71","volume-title":"Cochlear mechanics and otoacoustic emissions. 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