title: Efficacy of tympanoplasty without mastoidectomy on MRSA-infected chronic otitis media.
abstract: OBJECTIVE
  The prevalence of methicillin-resistant Staphylococcus aureus (MRSA)-infected chronic otitis media (COM) has been increasing, but to date, there has been no consensus on surgical treatment. Although there is a report that mastoidectomy is essential in treating MRSA-infected COM, in our experience, we found that tympanoplasty without mastoidectomy was sufficient. In this study, we evaluated the efficacy of tympanoplasty without mastoidectomy on MRSA-infected COM.
  
  
  METHODS
  Retrospective case-control study.
  
  
  METHODS
  Forty ears with MRSA-infected COM that underwent tympanoplasty without mastoidectomy were identified at a tertiary referral center from February 2006 to September 2011. Each case had two controls matched. Hearing results and postoperative complication were examined to evaluate the efficacy of tympanoplasty. The preoperative and postoperative pure tone audiometry was checked.
  
  
  RESULTS
  In the MRSA group and control group, 5 out of 40 ears (12.5%) and 8 out of 80 ears (10%) showed postoperative complications, respectively. The hearing success rate was 95.8% (23/24) in the MRSA group and 91.7% (44/48) in the control group. In the MRSA group, the average air-bone gap was 20 dB preoperatively, and it improved to 14 dB postoperatively. In the control group, the average air-bone gap was 19 dB preoperatively, and it improved to 13 dB postoperatively. There was no statistically significant difference between the MRSA and control groups.
  
  
  CONCLUSIONS
  Tympanoplasty without mastoidectomy showed efficacy in MRSA-infected COM.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, South Korea.
authors.forename: Hyung Chae
authors.initials: HC
authors.lastname: Yang
authors.forename: Yong Beom
authors.initials: YB
authors.lastname: Cho
authors.forename: Chul Ho
authors.initials: CH
authors.lastname: Jang
mesh_terms: D000328:Adult; D019072:Antibiotic Prophylaxis; D001301:Audiometry, Pure-Tone; D016022:Case-Control Studies; D002908:Chronic Disease; D005260:Female; D006309:Hearing; D006801:Humans; D008297:Male; D008416:Mastoid; D055624:Methicillin-Resistant Staphylococcus aureus; D008875:Middle Aged; D010033:Otitis Media / Q000382:microbiology* / Q000601:surgery*; D012189:Retrospective Studies; D013203:Staphylococcal Infections / Q000150:complications* / Q000601:surgery*; D016896:Treatment Outcome; D014433:Tympanoplasty / Q000379:methods*