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传导性聋是指由于外耳和/或中耳的先天性或后天性疾病导致外界声波传至内耳过程障碍,从而引起听觉减退的一类疾病。传导性聋的主要病因从外耳道至内耳包括:(1)耳廓:先天性或后天性的耳廓畸形;(2)外耳道:外耳道堵塞、狭窄或闭锁,如先天性外耳道畸形狭窄和闭锁、肿瘤、异物、胆脂瘤等;(3)鼓膜病变:鼓膜穿孔、炎症、增厚、粘连等;(4)听骨链病变:先天性听骨链缺失、固定、畸形和后天性炎症、外伤使听骨链完整性破坏,造成声音传递
Conductive deafness is a type of disease that causes acoustic loss due to congenital or acquired diseases of the external and / or middle ear that cause external sound waves to pass to the processes of the internal ear. The main causes of conductive deafness from the external auditory canal to the inner ear include: (1) auricle: congenital or acquired auricular deformity; (2) external auditory canal: external auditory canal obstruction, stenosis or atresia, such as congenital external auditory canal malformation stenosis and atresia, , Foreign bodies, cholesteatoma, etc .; (3) tympanic membrane lesions: tympanic membrane perforation, inflammation, thickening, adhesions, etc .; Damage to the integrity of the skeletal chain, resulting in voice transmission