Impact of Mastoidectomy in the Repair of Tympanic Perforation in Patients with Chronic Non- Cholesteatomatous Otitis Media with Sclerotic Mastoid Bone

Objective: To describe the clinical characteristics and results obtained in patients who underwent repair of tympanic perforation secondary to chronic non-cholesteatomatous otitis media with sclerotic mastoid bone, with and without mastoidectomy.

Material and methods: comparative cross-sectional study, with a non-probabilistic sampling by consecutive series of cases. We reviewed the files of patients who meet the inclusion criteria in the period from January 2015 to May 2016. Data was collected such as; age, sex, state of origin, history of smoking, cause of perforation, duration of dry ear, data to otoscopy, presence of trans operative and postoperative otorrhea, state of the mucosa, presence of tympanosclerosis or miringoesclerosis, perforation or retraction of the graft.

Results: A total of 48 patients were selected; 31 of the female sex and 17 of the male sex, with an average age of 43.25 years, the follow-up was 3 months. When comparing the group of patients with and without mastoidectomy, no statistically significant difference was found in the success of the surgery (graft perforation RR 1.2, p 1, postoperative otorrhea RR 2.26, p 0.68 and graft retraction RR 0.76, p 1). We found that the characteristics during and before surgery did not influence the final result, presenting an overall average of 94% of graft integration.

Conclusion: The mastoidectomy shows no additional benefit in tympanic membrane repair, the characteristics during and prior to surgery did not influence the final result.

Keywords: Chronic otitis media; Mastoidectomy; Tympanoplasty