Abstract
This study aims to evaluate the surgical outcomes with the use of a combination of the middle temporal artery (MTA) flap and the inferior musculoperiosteal (IMP) flap for mastoid obliteration after canal wall down mastoidectomy. Seventy-five patients who have undergone canal wall down mastoidectomy and mastoid obliteration with the MTA and the IMP flaps at a single tertiary hospital were included. Surgical outcomes measured included the creation of a dry mastoid cavity as measured by a previously developed semi-quantitative scale, mastoid cavity epithelization time, rate of revision surgery needed, and rate of recurrent cholesteatoma. Patients were followed up for a median of 29months. The median time to epithelization of the mastoid cavity was 2 months. At 1 and 3 months, 36.0% and 76.0% of patients had grade 0 and grade 1 cavities, respectively, with either a dry cavity or one or less episodes of mild otorrhea or sensation of wetness. Hundred percent of the patients achieved a grade 2 (more than one episode of otorrhea or the presence of granulation tissue that promptly resolved with simple treatment) or better cavity at 3 months. One patient re-presented with a grade 3 cavity with uncontrolled infection and daily otorrhea secondary to an attic perforation that manifested at 6 months, requiring revision surgery. There were no recurrent cholesteatomas during the follow-up period. The use of the MTA and the IMP flaps for mastoid obliteration may be considered as an adjunct to achieving a safe, dry ear after canal wall down mastoidectomy.
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More From: European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery
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