Tympanometric Screening Test for Otitis Media with Effusion in Preschool Children

Comparison of Izuhara-Machiwith Nagasaki-Shi

Abstract

Tympanometric tests for preschool children aged 4 to 5 years were performed in an isolated island, Izuhara-Machi in Tsushima Island and a city, Nagasaki-Shi, in June and December. Test results ofIzuhara-Machi were compared with those of Nagasaki-Shi. Incidence of type C1, type C2 and type Bdecreased in Izuhara-Machi and increased in Nagasaki-Shi from June to December in each year.
Incidence of otitis media with effusion in Nagasaki-Shi was significantly higher than in Izuhara-Machi.Several children with otitis media with effusion showed spontaneous improvement of abnormal tympanograms (type C2 or type B totype A) both in Izuhara-Machi and Nagasaki-Shi. From the results of tests, it was decided that re-examination should be done for children with type C2 and type B, but not with type C1.