滲出性中耳炎の臨床的研究 : アデノイド扁桃手術後症例の検討

概要

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Questionnaries concerning the pre- and post- operative conditions were conducted on 92 patients with secretory otitis media who underwent adenotomy or adeno-tonsillectomy. Fifty-three patients of them further received microscopic inspection of the eardrum and hearing tests. The questionnaries indicated that episodes of fever-up or cold decreased markedly after the operations. However, even after the operations, one-third of the patients experienced acute otitis media, and one-fourth complained of nasal symptoms such as nasal obstruction and nasal discharge. About a half of the patients showed normal findings of the eardrum after the operations. Secretory otitis media was cured in almost all cases ; 80% of the ears showed type A tympano-grams. However, about 35% of the ears showed unfavorable prognoses after the operations ; recurrence and elongated cure were found in 75% and 25% of these ears, respectively. The younger the patients, the higher the incidence of unfavorable prognosis became. Recur-rence was most frequently observed in patients younger than 6-year-old, and it usually occurred 4 -9 months after the operations mainly in winter The present study suggested that patients must be followed for at least 1 year after operation and that nasal symptoms must be carefully treated in patients not older than 5 years.