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KMID : 0880520090450020122
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Chonnam Medical Journal
2009 Volume.45 No. 2 p.122 ~ p.126
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Comparison of Hearing Results by Type of Tympanoplasty with Mastoid Obliteration during Chronic Otitis Media Surgery
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Choi Jeong-Wook
Cho Hyong-Ho
Lee Dong-Hoon
Oh Seung-Eun
Cho Yong-Bum
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Abstract
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Mastoid obliteration during chronic otitis media (COM) surgery could improve hearing results by enhancing the acoustic properties of the external auditory canal. The objective of this study was to compare postoperative hearing results by type of tympanoplasty with mastoid obliteration during COM surgery. Twenty-five COM patients (25 ears) underwent tympanoplasty type III during canal wall down (CWD) mastoidectomy and mastoid obliteration: 10 patients underwent classic tympanoplasty type III (group I), and 15 patients underwent columellarization between the tympanic membrane and the stapes head with a partial ossicular replacement prosthesis or cartilage (group II). Hearing results and complications were compared between the 2 groups. Postoperative air-bone gap (ABG) levels within 20 dB were 30% and 60% in group I and group II, respectively. Closure of the ABG was significantly better in group II than in group I (p＜0.05). No serious complications were observed in either group. In CWD tympanomastoidectomy with mastoid obliteration, tympanoplasty using strut results in greater hearing improvement than does classic tympanoplasty type III.
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KEYWORD
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Otitis media, Obliteration, Tympanoplasty
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