Results after Treatment of Otitis Media with Effusion

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Abstract
Otitis media with effusion will be observed in every fifth child admitted for adenoid surgery; in children with cleft palates the incidence is 50%. With adenoidectomy alone, normal hearing can be restored in 50% and improved in further 25% of the patients. Over a 12-year period 1,683 patients with otitis media with effusion were treated with adenoidectomy and with insertion of tympanostomy tubes in those cases where adenoidectomy proved to be ineffective. Since the tubes only substitute tubal function, recurrences have to be expected in more than 30% after spontaneous extrusion of the tubes. Of all recurrences, 93% occur within two years after tube insertion. With thorough follow-up and repeated insertion of tubes, deterioration of the middle ear can be avoided and hearing kept normal. Impaired bone conduction does not reflect inner ear damage, but will improve with ventilation of the middle ear. Infections occur in 15% (5% postoperatively, 10% later); persistent perforations in 2.5% and cholesteatoma in 0.9%.

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