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Korean Journal of Otolaryngology - Head and Neck Surgery ; : 92-98, 2023.
Article in English | WPRIM | ID: wpr-969064

ABSTRACT

Background and Objectives@#The canal wall down mastoidectomy brings changes in the anatomy of the external auditory canal (EAC), causing potential problems, such as accumulated crust, vertigo attacks, and difficulties in wearing hearing aids (HAs). The objective of this study is to evaluate the safety and efficacy of mastoidoplasty using the demineralized bone matrix (DBM) to obliterate the mastoidectomized cavity and reconstruct EAC.Subjects and Method Medical records of patients with chronic otitis media with or without cholesteatoma who received mastoidoplasty using DBM by a single surgeon at Seoul St. Mary’s hospital between 2014 and 2021 were reviewed retrospectively. @*Results@#A total of 27 patients were included in this study. None of the patients showed any recurrence of cavity problem, wound infection, or any other complications during their followup period of 13.07±37 months. The average air and bone conduction hearing level of pure tone audiometry showed no significant change after surgery (p=0.50, p=0.54, respectively). Five patients indicated for hearing rehabilitation could adopt canal type HAs after surgery; six patients used completely-in-the canal type HAs, and one patient used in-the-canal type HAs. None of the patients using HAs complained of acoustic feedback or any other problem in wearing HAs. @*Conclusion@#Mastoidoplasty using DBM seems to be a very safe and effective surgical procedure that shows functionally acceptable EAC for hearing rehabilitation with canal type HAs and demonstrates no specific complication.

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