title: Outcome of tympanoplasty with and without cortical mastoidectomy for tubotympanic chronic otitis media.
abstract: This cross sectional study was done to find out the level of hearing improvement in Type-I tympanoplasty with cortical mastoidectomy in tubotympanic chronic otitis media. Data were analyzed from 60 patients with audiometric studies with a minimum of 6 months follow up. Patients who under went tympanoplasty alone were kept in Group I, and who under went tympanoplasty with cortical mastoidectomy were kept in Group II. All patients prior to tympanoplasty were examined thoroughly after taking detailed history. On otoscopy, site and size of the tympanic membrane perforation, condition of the rest of the tympanic membrane, condition of the middle ear mucosa and the ossicles were noted. Tuning fork test, test for facial nerve integrity and fistulae test were performed. Hearing level was assessed by pure tone audiometry with masking. X-ray mastoid and X-ray paranasal sinuses were done to exclude local pathology. Surgical approaches were mostly post-auricular and in few cases it was per-meatal in Group I patient. Audiometric evaluation performed according to the International Organization for Standardization (ISO) standard. Hearing threshold measured at 250, 500, 1000, and 2000 Hz. Hearing improvement was assessed by closure of the air bone gap. Mean closure of air bone gap in Group I was 9.38 dB and in Group II it was 20.61 dB which was statistically significant (p<0.001). Improvement of hearing level was more in patient who underwent tympanoplasty with cortical mastoidectomy than those patients on whom only tympanoplasty was performed. Hearing gain is more in Type-1 tympanoplasty combining with Cortical Mastoidectomy than in Type-1 tympanoplasty alone in the patient's of tubotympanic otitis media.
authors.affiliation: Department of Otolaryngology-Head & Neck Surgery, BSMMU, Dhaka, Bangladesh.
authors.forename: M A
authors.initials: MA
authors.lastname: Habib
authors.forename: M Z
authors.initials: MZ
authors.lastname: Huq
authors.forename: M
authors.initials: M
authors.lastname: Aktaruzzaman
authors.forename: M S
authors.initials: MS
authors.lastname: Alam
authors.forename: A H
authors.initials: AH
authors.lastname: Joarder
authors.forename: M A
authors.initials: MA
authors.lastname: Hussain
mesh_terms: D001309:Auditory Threshold; D006801:Humans; D010035:Otitis Media, Suppurative / Q000473:pathology / Q000503:physiopathology / Q000601:surgery*; D016896:Treatment Outcome; D014433:Tympanoplasty / Q000379:methods*