小児両側感音難聴児の原因:聴能訓練通園施設10年間の統計

概要

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We investigated the etiology of hearing impairments in 279 of the 900 children attending Okayama Kanariya Gakuen who were diagnosed with bilateral sensorineural hearing impairment between April 1981 and March 1991. We compared these results with those collected during the previous 12-year period (between April 1969 and March 1981) and those of other studies. The result s were as follows; 1) There were 35 patient s (12.5%) who were considered to have congenital hearing impairment. The rate was similar to that in the previous 12-year period. 2) There were 49 patients (17.6%) whose hearing impairmen ts developed in the prenatal period. Fourteen patients had a history of maternal Rubella during pregnancy. The incidence of Rubella had been high in that year. 3) There were 118 patients (42.3%) w hose hearing impairments were caused in the perinatal period. Thirty-nine patients were premature infants who developed hearing impairment because of anoxia. 4) There were 71 pa tients (25.4%) whose hearing impairments were acquired after birth. In 9 patients, the development of hearing impairment was seemed to correspond with the manifestation of other pathologies.5 ) There were 59 pat ients (21.1%) who did not clearly fit in any category.
耳鼻咽喉科臨床学会の論文