Clinical Study of Tympanoplasty for Chronic Otitis Media in Our Department

Abstract

We studied 137 ears with chronic otitis media (COM) underwent tympanoplasty at Osaka Rosai Hospital from April 2005 to March 2010. The patients' mean age was 56.2 years, with a range of 7-79 years. Classification of the perforation size showed grade I (25% perforation of TM) in 7 ears (5.1%), grade II (50% perforation of TM) in 31 ears (22.6%), grade III (75% perforation of TM) in 55 ears (40.1%) and grade IV (total perforation of TM) in 44 ears (32.1%).
The overall postoperative closure rate of the perforation was 97.1% and the hearing improvement rate was 82.5%. There was no significant difference among grade I-IV groups in both closure rate and hearing improvement rate.