Author(s)
Andrea M. Salazar Alba, MD
Joaquin A. Reyes Miranda
Affiliation(s)
AUDIOTEC;
Abstract:
Introduction: study vestibular changes pre operative and post operative in chronic otitis media surgery
Methods: Prospective study, 3 years from january 2018 to december 2020 on AUDIOTEC otolaryngology clinic in Cochabamba, Bolivia. We have studied 54 patients with chronic otitis media who need middle ear surgery, the exclusion criteria where previous known vestibular disease.all the patients have no vestibular symptoms pre operatively. the neurotologic assemente includes 6 channel video head impulse test and video frenzel 3 to 5 days previous and 7 to 10 days after the surgery. the patients who had vestibular symptoms where reevaluated 30 days after surgery. this study includes tympanic membrane perforation, cholesteatoma and granulomatous chronic otitis media.
Results: the patients where classified in two groups, 11 patients have vestibular symptoms postoperatively and 43 patients with no vestibular symptoms.
the 11 patients had fibrous disease around the oval window niche and the vestibular assessment reported a unilateral vestibular hipofunction.
all the symptomatic patients undergo vestibular rehabilitation with vestibular excersices and symptomatic pharmacological therapy. At 30 days post operatively all patients had normal video head impulse gains and a normal neurotologic examination
Conclusions: the more involved the area of ??the round window, greater the risk of mobilization of the plate, therefore there is greater injury in the vestibule.
In this study, the compromise of the oval window area was evaluated, therefore the hearing results were not compared because the type of lesion of the ossicular chain was not typified.
In future studies, a comparison will be made according to type of tympanoplasty and ossicular chain status