Abstract
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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Saha, A.K., Munsi, D.M. & Ghosh, S.N. Evaluation of improvement of hearing in type I tympanoplasty & its influencing factors. Indian J Otolaryngol Head Neck Surg 58, 253–257 (2006). https://doi.org/10.1007/BF03050833
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DOI: https://doi.org/10.1007/BF03050833