Evaluation of improvement of hearing in type I tympanoplasty & its influencing factors

study included 40 patients treated for CSOM with central perforation. Only type I tympanoplasty was done in 30 patients with dry central perforation and simple mastoidectomy with type I tympanoplasty was performed in 10 patients with moist or discharging perforation. Type I tympanoplasty utilizing a...

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Bibliographic Details
Published inIndian Journal of Otolaryngology and Head and Neck Surgery Vol. 58; no. 3; pp. 253 - 257
Main Authors Saha, Asok K, Munsi, D M, Ghosh, S N
Format Journal Article
LanguageEnglish
Published India Springer India 01.07.2006
Subjects
Main
influencing factors
CSOM
type I tympanoplasty
Hearing gain
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Summary:study included 40 patients treated for CSOM with central perforation. Only type I tympanoplasty was done in 30 patients with dry central perforation and simple mastoidectomy with type I tympanoplasty was performed in 10 patients with moist or discharging perforation. Type I tympanoplasty utilizing an underlay technique with TFG shows high probability of success (85%). Presence of bilateral perforations lowers the success rate (66.66%). Status of non-operated ear is a significant factor for success rate. An overall hearing gain of about 10db was achieved. Poor pre-operative hearing status of elderly adversely influences post-operative improvement of hearing. Typel tympanoplasty with simple mastoidectomy results excellent surgical success rate (100%) but gives less improvement of hearing (closure of A-B gap= 3.3db). In type I tympanoplasty alone surgical success rate drops to 80-75% but is offers more improvement of hearing (closure of A-B gap = 6.708 db).
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ISSN:2231-3796
0019-5421
0973-7707
DOI:10.1007/BF03050833