Conductive deafness is caused by the acoustic conduction path, that is, the external ear, the hearing impairment caused by the middle ear lesion. In general, the hearing loss of conductive deafness will not exceed60dBAnd ambient noise has a slight disturbance to the hearing of patients with conductive deafness.
The cause is mainly decibel congenital diseases and acquired diseases.
Congenital diseases have congenital external ear canal malformations or atresia, middle ear malformations.
Acquired diseases can have foreign bodies in the external auditory canal, embolism, inflammation, acute and chronic otitis media, traumatic tympanic membrane perforation, otosclerosis, tympanosclerosis, cholesteatoma, benign or malignant tumors of the external auditory canal and middle ear, interruption of the ossicular chain, etc. .
Generally, in the clinical diagnosis, the patient’s medical history needs to be inquired first, and then an otoscopy is performed to understand the cause, the extent of the damage, and the degree of hearing loss of the part.
Then, an audiological examination, such as tuning fork examination, pure tone audiometry, and acoustic impedance examination, is also required.
The range of air conduction hearing loss in pure tone audiometry is30~60dB, bone conduction hearing normal or near normal, gas bone conduction> 10dBGenerally, the low frequency hearing loss is heavier.
At the time of treatment, the cause of conductive deafness is generally clear, and the cause of treatment should be preferred. We need to actively treat acute, chronic suppurative otitis media and secretory otitis media.
Clinically used tympanoplasty for chronic suppurative otitis media, if you are not willing to undergo surgery, you can choose to wear a hearing aid.