{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,5]],"date-time":"2026-01-05T11:18:30Z","timestamp":1767611910918,"version":"3.41.0"},"reference-count":44,"publisher":"Wiley","license":[{"start":{"date-parts":[[2015,1,1]],"date-time":"2015-01-01T00:00:00Z","timestamp":1420070400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"funder":[{"DOI":"10.13039\/501100001868","name":"National Science Council","doi-asserted-by":"publisher","award":["NSC101-2314-B-016-012-MY3","TSGH-C104-040","MAB-104-055"],"award-info":[{"award-number":["NSC101-2314-B-016-012-MY3","TSGH-C104-040","MAB-104-055"]}],"id":[{"id":"10.13039\/501100001868","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100010425","name":"Tri-Service General Hospital","doi-asserted-by":"crossref","award":["NSC101-2314-B-016-012-MY3","TSGH-C104-040","MAB-104-055"],"award-info":[{"award-number":["NSC101-2314-B-016-012-MY3","TSGH-C104-040","MAB-104-055"]}],"id":[{"id":"10.13039\/501100010425","id-type":"DOI","asserted-by":"crossref"}]},{"name":"National Defense Medical Research Grants","award":["NSC101-2314-B-016-012-MY3","TSGH-C104-040","MAB-104-055"],"award-info":[{"award-number":["NSC101-2314-B-016-012-MY3","TSGH-C104-040","MAB-104-055"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BioMed Research International"],"published-print":{"date-parts":[[2015]]},"abstract":"<jats:p>The aim of this study was to retrospectively review the long-term hearing results and the impact of mastoid exclusion\/obliteration in patients with cholesteatoma (102 ears) who underwent retrograde tympanomastoidectomy and in whom bone chips\/pat\u00e9 were applied as the sole materials during the procedure. In 79 ears, this was combined with ossiculoplasty in a single-stage procedure. In &gt;71% of ears, the results of audiometric testing were monitored for more than 2 years. The results suggested there was a significant gain in hearing following surgery, with respect to the postoperative change in both air-conduction thresholds and air-bone gaps (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mi>P<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn fontstyle=\"italic\">0.001<\/mml:mn><\/mml:math>). Linear regression analyses of pure-tone averages at different frequencies, before and after surgery, demonstrated that patients benefitted from a postoperative hearing gain at low and middle frequencies, but their hearing often deteriorated at frequencies of 8000\u2009Hz. As for the impact of the type of tympanoplasty on hearing outcomes, type III-interposition markedly increased hearing gain. The overall rate of postoperative adverse events was 8.8%. We conclude that reconstruction of the ear canal and mastoid via mastoid exclusion\/obliteration using bone chips\/pat\u00e9 can be considered as an alternative procedure following retrograde mastoidectomy. It gives excellent surgical results and has fewer postoperative adverse events.<\/jats:p>","DOI":"10.1155\/2015\/517035","type":"journal-article","created":{"date-parts":[[2015,3,15]],"date-time":"2015-03-15T21:01:10Z","timestamp":1426453270000},"page":"1-12","source":"Crossref","is-referenced-by-count":15,"title":["Surgical Results of Retrograde Mastoidectomy with Primary Reconstruction of the Ear Canal and Mastoid Cavity"],"prefix":"10.1155","volume":"2015","author":[{"given":"Chao-Yin","family":"Kuo","sequence":"first","affiliation":[{"name":"Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, No. 325, Section 2, Cheng-Kung Road, Taipei 114, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bor-Rong","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, No. 325, Section 2, 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