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Influence of cochlear coverage (CC) has been studied, however without consideration of different CI-categories, like single sided deafness (SSD), bimodal, and bilateral separately.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods<\/jats:title>\n            <jats:p>Retrospective analysis of preoperative CT scans was performed at a tertiary center. For each patient their individual CC with the selected electrode array was calculated off the complete CDL. Patients were categorized into SSD (n\u2009=\u200930), bimodal (n\u2009=\u200972), and bilateral CI patients (n\u2009=\u200929). Speech perception within the first 12\u00a0months post-implantation was compared between patient groups with shorter and longer CC. For subgroup analysis the cutoff between a shorter or longer CC was identified by the median.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>Cutoff between a shorter or longer CC was identified at 65% off the complete CDL for SSD and bimodal patients, and at 70% for bilateral patients. In SSD-patients longer CC was associated with better performance at activation (CC<jats:sup>shorter<\/jats:sup> 20.0\u2009\u00b1\u200928.9% vs. CC<jats:sup>longer<\/jats:sup> 31.5\u2009\u00b1\u200924.7%; <jats:italic>p<\/jats:italic>\u2009=\u20090.04) and no benefit was found with deeper insertion at 12\u00a0months. No significant benefit was found for deeper insertion in bimodal and bilateral patients.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions<\/jats:title>\n            <jats:p>Capacities of hearing performance seem to differ between SSD, bimodal and bilateral patients within the first year after implantation with regards to cochlear coverage. SSD-patients appear to benefit from deeper insertion than 65% up to 12\u00a0months after implantation. However, these results should be interpreted with caution, hence development of speech perception with CI is influenced by a whole range of factors, and bimodal and bilateral treated patients are extremely heterogenous patient groups.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1007\/s00405-024-09086-x","type":"journal-article","created":{"date-parts":[[2024,12,17]],"date-time":"2024-12-17T03:17:45Z","timestamp":1734405465000},"page":"1853-1863","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Influence of cochlear coverage on speech perception in single sided deafness, bimodal, and bilateral implanted cochlear implant patients"],"prefix":"10.1007","volume":"282","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6187-0195","authenticated-orcid":false,"given":"Jennifer L.","family":"Spiegel","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joachim","family":"Mueller","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rebecca","family":"Boehnlein","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John-Martin","family":"Hempel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2560-2713","authenticated-orcid":false,"given":"Judith E.","family":"Spiro","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8368-0149","authenticated-orcid":false,"given":"Bernhard G.","family":"Weiss","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6479-5899","authenticated-orcid":false,"given":"Mattis","family":"Bertlich","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Martin","family":"Canis","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7250-2833","authenticated-orcid":false,"given":"Tobias","family":"Rader","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2024,12,17]]},"reference":[{"key":"9086_CR1","unstructured":"WHO (2022) Deafness and hearing loss World Health Organization. https:\/\/www.who.int\/health-topics\/hearing-loss. 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