当科における耳小骨奇形の検討:外耳道,鼓膜正常例を中心に

概要

論文の詳細を見る
One hundred and fifteen ears in 104 patients with congenital ossicular anomalies had been surgically treated in our department between 1971 and 1988. Among them 62 ears in 55 cases, which had normal external ear canals and normal tympanic membranes, were investigated. We studied the correlation between the hearing level after surgery and the characteristics of the ossicular anomaly detected during operation. The ossicular anomalies were classified according to embryologic criteria, such as monofocal type and multifocal type, and by according to whether the ossicular chain had been fixed or not, and disconnected or not. The postoperative hearing level was better in the monofocal type group than in the multifocal type group, and it was better in the group with ossicular disconnection than in the group with ossicular fixation in most cases.
耳鼻咽喉科臨床学会の論文