{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,20]],"date-time":"2026-07-20T08:17:57Z","timestamp":1784535477076,"version":"3.55.0"},"reference-count":25,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2022,11,11]],"date-time":"2022-11-11T00:00:00Z","timestamp":1668124800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Laryngoscope Investig Oto"],"published-print":{"date-parts":[[2022,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To reveal the factors affecting the incidence of chorda tympani nerve (CTN) transection during middle ear surgery.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study Design<\/jats:title><jats:p>Retrospective case review.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting<\/jats:title><jats:p>Tertiary referral center.<\/jats:p><\/jats:sec><jats:sec><jats:title>Patients<\/jats:title><jats:p>We analyzed 232 ears (117 ears with cholesteatoma, 101 ears with chronic otitis media, and 14 ears with otosclerosis) that underwent tympanoplasty or stapes surgery during 2017\u20132020.<\/jats:p><\/jats:sec><jats:sec><jats:title>Intervention<\/jats:title><jats:p>Eighty\u2010four ears underwent transcanal endoscopic ear surgery (TEES), 103 ears underwent microscopic ear surgery (MES), and 45 ears underwent surgery using both endoscopy and microscopy (Dual).<\/jats:p><\/jats:sec><jats:sec><jats:title>Main Outcome Measure<\/jats:title><jats:p>To confirm CTN transection, intraoperative endoscopic\/microscopic video images were evaluated. We used the same video images to determine the anatomical variation of the CTN course in the middle ear.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In 18 ears (7.8%: 6\/84 TEES ears [7.1%], 6\/103 MES ears [5.8%], and 6\/45 Dual ears [13.3%]), the CTN was cut during middle ear surgery. There was no significant difference in CTN transection among groups. In cholesteatoma patients, stapes involvement resulted in a significantly higher CTN transection incidence. CTN anatomical variants such as the \u201cAttached Short type\u201d and \u201cUltrashort type\u201d showed a significantly higher CTN transection incidence.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Although endoscopic surgery did not reduce the incidence of CTN transection during middle ear surgery, pathological involvement of the stapes and CTN anatomical variants, such as the \u201cAttached Short type\u201d and \u201cUltrashort type,\u201d may increase this incidence. Preoperative evaluation of stapes involvement and anatomical location of the CTN course could help identify patients at greater risk for iatrogenic CTN transection.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of Evidence<\/jats:title><jats:p>4.<\/jats:p><\/jats:sec>","DOI":"10.1002\/lio2.976","type":"journal-article","created":{"date-parts":[[2022,11,12]],"date-time":"2022-11-12T06:39:50Z","timestamp":1668235190000},"page":"2088-2094","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Factors affecting the incidence of chorda tympani nerve transection in middle ear surgery"],"prefix":"10.1002","volume":"7","author":[{"given":"Saki","family":"Takihata","sequence":"first","affiliation":[{"name":"Department of Otolaryngology\u2010Head and Neck Surgery National Defense Medical College  Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6273-8527","authenticated-orcid":false,"given":"Takaomi","family":"Kurioka","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology\u2010Head and Neck Surgery National Defense Medical College  Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0340-8293","authenticated-orcid":false,"given":"Kunio","family":"Mizutari","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology\u2010Head and Neck Surgery National Defense Medical College  Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akihiro","family":"Shiotani","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology\u2010Head and Neck Surgery National Defense Medical College  Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,11,11]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM196905222802105"},{"key":"e_1_2_7_3_1","first-page":"554","article-title":"History of tympanoplasty","volume":"26","author":"Mudry A","year":"2005","journal-title":"Otol Neurotol"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.otc.2017.11.003"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1097\/MAO.0000000000001609"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1177\/0194599820945634"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.otohns.2006.12.022"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1097\/MAO.0000000000002048"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1097\/MAO.0000000000001780"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1093\/chemse\/bjv015"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1097\/MAO.0000000000002353"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00405-021-06908-0"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1001\/jamaoto.2020.0001"},{"key":"e_1_2_7_14_1","first-page":"544","article-title":"Endoscopic management of acquired cholesteatoma","volume":"18","author":"Tarabichi M","year":"1997","journal-title":"Am J Otol"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijporl.2015.10.019"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1097\/MAO.0000000000002872"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00405-013-2673-z"},{"key":"e_1_2_7_18_1","article-title":"Chorda tympani nerve injury during tympanoplasty. Comparison of endoscopic and microscopic methods","author":"Iynen I","year":"2021","journal-title":"Ann Ital Chir"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1097\/MAO.0000000000001933"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00405-020-06182-6"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1097\/MAO.0000000000002998"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1002\/lary.24144"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1002\/lary.25410"},{"key":"e_1_2_7_24_1","doi-asserted-by":"publisher","DOI":"10.1002\/lary.28353"},{"key":"e_1_2_7_25_1","doi-asserted-by":"publisher","DOI":"10.1097\/MAO.0000000000002865"},{"key":"e_1_2_7_26_1","doi-asserted-by":"publisher","DOI":"10.1017\/S0022215111001873"}],"container-title":["Laryngoscope Investigative Otolaryngology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/lio2.976","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/lio2.976","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/lio2.976","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,10,18]],"date-time":"2024-10-18T12:55:49Z","timestamp":1729256149000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/lio2.976"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,11,11]]},"references-count":25,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2022,12]]}},"alternative-id":["10.1002\/lio2.976"],"URL":"https:\/\/doi.org\/10.1002\/lio2.976","archive":["Portico"],"relation":{},"ISSN":["2378-8038","2378-8038"],"issn-type":[{"value":"2378-8038","type":"print"},{"value":"2378-8038","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,11,11]]},"assertion":[{"value":"2022-06-08","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-10-29","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-11-11","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}