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在儿童大部分耳聋为先天性或遗传性耳聋。一些中度或轻度的耳聋病例是为传导性炎型。可是,先天性或遗传性传导性耳聋罕见。先天性传导性听力丧失可分为耳翼发育不全及耳道不通和外耳正常两类型。外耳正常中耳听小骨畸形往往表现为散发性,家族性发生者罕见。家族性发生病情轻,容易疏忽,故文献中报道很少。本文作者报道一家族病例。一小女孩及其母亲由于听小骨异常而引起先天性传导性听力丧失。
Most deafness in children is congenital or hereditary deafness. Some moderate or mild cases of deafness are conductive. However, congenital or hereditary conductive deafness rare. Congenital conductive hearing loss can be divided into auricle hypoplasia and ear canal barrier and normal two types of external ear. Outer ear normal middle ear to hear small bone deformity often showed sporadic, rare in familial occurrence. Familial mild condition, easy to neglect, so rarely reported in the literature. The authors report a family case. A young girl and her mother cause congenital conductive hearing loss due to hearing of an abnormal bone.