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Ossicular chain reconstruction improves bone conduction threshold in chronic otitis media

Published online by Cambridge University Press:  08 March 2017

H-S Lee ,
S-D Hong ,
S H Hong ,
Y-S Cho  and
W-H Chung
H-S Lee
Affiliation:
Department of Otorhinolaryngology-Head and Neck Surgery, Pundang Jesaeng Hospital, Daejin Medical Center, Sungnam, Korea
S-D Hong
Affiliation:
Department of Otorhinolaryngology-Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea
S H Hong
Affiliation:
Department of Otorhinolaryngology-Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea
Y-S Cho
Affiliation:
Department of Otorhinolaryngology-Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea
W-H Chung*
Affiliation:
Department of Otorhinolaryngology-Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea
*
Address for correspondence: Won-Ho Chung, Department of Otorhinolaryngology-Head and Neck Surgery, Samsung Medical Center, 50 Ilwon-dong Kangnam-ku, Seoul 135-710, Korea. Fax: 82 2 3410 3879 E-mail: whchung@smc.samsung.co.kr
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Abstract

This study aimed to assess the elevation of bone conduction threshold in patients with chronic otitis media and to investigate the mechanism of this phenomenon. One hundred and six patients with unilateral chronic otitis media who had undergone a tympanomastoidectomy were reviewed retrospectively. The differences in the bone conduction thresholds between the diseased and normal sides were assessed and compared according to the duration of the disease and the presence of cholesteatoma. Post-operative changes in the bone conduction threshold were also assessed. The mean bone conduction thresholds were significantly elevated on the diseased side, ranging from 3.4 to 11.6 dB across frequencies, with a maximal elevation at 2000 Hz. The duration of disease and the presence of cholesteatoma did not affect the degree of the bone conduction elevation. After ossicular reconstruction, bone conduction thresholds improved significantly at all frequencies, with the greatest improvement being observed at 2000 Hz. These results suggest that the elevation in the bone conduction threshold in chronic otitis media is mainly caused by a change in the conductive mechanism in the middle ear.

Keywords

Suppurative Otitis MediaBone ConductionOtologic Surgical ProceduresConductive Hearing Loss
Type
Main Article
Information
The Journal of Laryngology & Otology , Volume 122 , Issue 4 , April 2008 , pp. 351 - 356
Copyright
Copyright © JLO (1984) Limited 2007

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