Changes of the tympanogram after acute otitis media in children - Results of screening tests and questionnaires.:Results of Screening Tests and Questionnaires

概要

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The results of tympanometry performed during routine examinations entering school were correlated with the incidence of acute otitis media. The interval since the disease and the changes of the tympanogram (TG) after recovery were noted.1) Type C TG was seen in 30 to 40% of the patients less than one year after the disease and the eustachian tube was believed to be still abnormal. More than one year after disease, Type C TG was seen in 20%, and after two years, no patients had Type C TGs and all had Type A TGs, indicating normal function of the eustachian tube.2) In these cases, however, if there were associated nasal or pharyngeal diseases, normalization was delayed, and recurrences of otitis media were more frequent.3) The majority of patients with associated nasal or pharyngeal disease but without a previous history of acute otitis media had Type A TGs, indicating no effect on the eustachian tube.4) In many patients in whom tubo-tympanic catarrh was diagnosed, symptoms suggestive of infection of the upper respiratory tract were found by questionnaires, even if they had no previous history of otitis media. This suggests that they may have contracted otitis media without the knowledge of their families. In these cases, otitis media can be discovered in a high incidence by attentive pediatricians. Therefore, close cooperation with pediatricians is important.
耳鼻咽喉科臨床学会の論文