{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T22:04:13Z","timestamp":1781647453476,"version":"3.54.5"},"reference-count":17,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2021,10,11]],"date-time":"2021-10-11T00:00:00Z","timestamp":1633910400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Ear Nose Throat J"],"published-print":{"date-parts":[[2024,4]]},"abstract":"<jats:p>Objective: The presence of Carhart\u2019s notch at 2000\u00a0Hz in otosclerosis links the changed bone conduction for this frequency with the otosclerotic process occurring in the oval window. The aim of this study is to perform an audiometric assessment of the effectiveness of surgical treatment of otosclerosis depending on the incidence of Carhart\u2019s notch. Methods: The analysis included 116 patients treated surgically for the first time due to otosclerosis. Patients were divided into 4 groups depending on the occurrence of Carhart\u2019s notch, determined by pure-tone audiometry (PTA) before the surgery and 36\u00a0months afterward. The mean value of bone conduction thresholds was calculated for 500\u00a0Hz, 1000\u00a0Hz, 2000\u00a0Hz, and 3000\u00a0Hz in the groups in which the Cahart\u2019s notch was observed. This value of bone conduction (BC) was a reference point for further analysis in patients who had no preoperative or postoperative Carhart\u2019s notch. Results: The analysis indicated that Cahart\u2019s notch in preoperative PTA is a statistically significant improvement factor for average BC. It was found that over a longer observation period, the presence of Carhart\u2019s notch has adverse effects on the size of the postoperative air-bone gap, and consequently on hearing improvement after surgical treatment. A comparison between patients from the two groups without preoperative Carhart\u2019s notch found that no beneficial effects of the surgery on speech comprehension were observed regarding high-level sensorineural hearing loss (SNHL). Conclusions: (1) In a long-term observation post-stapedotomy, average BC values were found to improve. Nevertheless, the improvement is less evident in patients with preoperative Carhart\u2019s notch. (2) Disappearance of Cahart\u2019s notch after surgical treatment of otosclerosis is a good prognosis of improvement in speech audiometry. (3) Deep SNHL in the absence of Carhart\u2019s notch in PTA constitutes a bad prognostic factor for improvement in speech audiometry in patients qualified for surgical treatment of otosclerosis.<\/jats:p>","DOI":"10.1177\/01455613211043685","type":"journal-article","created":{"date-parts":[[2021,10,11]],"date-time":"2021-10-11T10:09:47Z","timestamp":1633946987000},"page":"241-247","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["The Audiometric Assessment of the Effectiveness of Surgical Treatment of Otosclerosis Depending on the Preoperative Incidence of Carhart\u2019s Notch"],"prefix":"10.1177","volume":"103","author":[{"given":"Katarzyna","family":"Job","sequence":"first","affiliation":[{"name":"Department of Otolaryngology, Jagiellonian University Medical College in Krak\u00f3w, Krakow, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1793-0744","authenticated-orcid":false,"given":"Agnieszka","family":"Wiatr","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology, Jagiellonian University Medical College in Krak\u00f3w, Krakow, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacek","family":"Skladzien","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology, Jagiellonian University Medical College in Krak\u00f3w, Krakow, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0840-9268","authenticated-orcid":false,"given":"Maciej","family":"Wiatr","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology, Jagiellonian University Medical College in Krak\u00f3w, Krakow, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2021,10,11]]},"reference":[{"issue":"4","key":"bibr1-01455613211043685","first-page":"281","volume":"4","author":"Potocka M","year":"2010","journal-title":"Forum Med Rodz"},{"key":"bibr2-01455613211043685","first-page":"24","volume":"5","author":"Szyma\u0144ski M","year":"2004","journal-title":"Magazyn Otolaryngologiczny"},{"key":"bibr3-01455613211043685","doi-asserted-by":"publisher","DOI":"10.1016\/j.otoeng.2015.11.002"},{"key":"bibr4-01455613211043685","doi-asserted-by":"publisher","DOI":"10.1016\/j.anorl.2012.11.002"},{"key":"bibr5-01455613211043685","doi-asserted-by":"publisher","DOI":"10.1016\/j.heares.2014.12.003"},{"key":"bibr6-01455613211043685","doi-asserted-by":"publisher","DOI":"10.14639\/0392-100X-N0213"},{"key":"bibr7-01455613211043685","doi-asserted-by":"publisher","DOI":"10.1016\/S0194-5998(95)70103-6"},{"issue":"3","key":"bibr8-01455613211043685","first-page":"183","volume":"11","author":"Sabbe A","year":"2015","journal-title":"B-ENT"},{"key":"bibr9-01455613211043685","doi-asserted-by":"publisher","DOI":"10.5152\/iao.2020.8139"},{"key":"bibr10-01455613211043685","first-page":"161","volume":"54","author":"Konopka W","year":"2000","journal-title":"Otolaryngologia Polska"},{"key":"bibr11-01455613211043685","volume-title":"Modern Developments in Audiology","author":"Bocca E","year":"1963"},{"key":"bibr12-01455613211043685","doi-asserted-by":"publisher","DOI":"10.1097\/AUD.0b013e31818246f6"},{"key":"bibr13-01455613211043685","doi-asserted-by":"publisher","DOI":"10.1080\/14992020801945493"},{"key":"bibr14-01455613211043685","doi-asserted-by":"publisher","DOI":"10.1017\/S0022215106003343"},{"key":"bibr15-01455613211043685","doi-asserted-by":"publisher","DOI":"10.1177\/0194599813495661"},{"key":"bibr16-01455613211043685","doi-asserted-by":"publisher","DOI":"10.1080\/00016489.2020.1745270"},{"key":"bibr17-01455613211043685","doi-asserted-by":"publisher","DOI":"10.1177\/0145561319864571"}],"container-title":["Ear, Nose &amp; 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