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Whereas the effects of collagen IV changes in the cochlea are well known, no changes have been described in the posterior labyrinth. The aim of this study was to investigate both the auditory and the vestibular function of a group of individuals with AS. Seventeen patients, aged 9\u201352, underwent audiological tests including pure\u2010tone and speech audiometry, immittance test and otoacoustic emissions and vestibular tests including video head impulse test, rotatory test, and vestibular evoked myogenic potentials. Hearing loss affected 25% of the males and 27.3% of the females with X\u2010linked AS. It was sensorineural with a cochlear localization and a variable severity. 50% of the males and 45.4% of the females had a hearing impairment in the high\u2010frequency range. Otoacoustic emissions were absent in about one\u2010third of the individuals. A peripheral vestibular dysfunction was present in 75% of the males and 45.4% of the females, with no complaints of vertigo or dizziness. The vestibular impairment was compensated and the vestibulo\u2010ocular reflex asymmetry was more evident in rotatory tests carried out at lower than higher speeds; a vestibular hypofunction was present in all hearing impaired ears although it was also found in subjects with normal hearing. A posterior labyrinth injury should be hypothesized in AS even when the patient does not manifest hearing disorders or evident signs of renal failure.<\/jats:p>","DOI":"10.1002\/ajmg.a.61796","type":"journal-article","created":{"date-parts":[[2020,8,21]],"date-time":"2020-08-21T11:52:31Z","timestamp":1598010751000},"page":"2345-2358","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Vestibular and audiological findings in the Alport syndrome"],"prefix":"10.1002","volume":"182","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4574-2193","authenticated-orcid":false,"given":"Stefania","family":"Barozzi","sequence":"first","affiliation":[{"name":"Audiology Unit, Department of Clinical Sciences and Community Health University of Milan  Milan Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniela","family":"Soi","sequence":"additional","affiliation":[{"name":"Audiology Unit, Department of 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