L ’ dell ’ disease middle ear and hearing test procedure which determine hearing loss. The mechanisms of Otosclerosis are not completely known, seems to be a strong genetic component with a presumed autosomal dominant transmission mostly incomplete. L ’ Otosclerosis affects mainly women (with a report 2:1) and when life tends to involve both ears.
The disease causes an alteration of the articulation between the oval window and the bracket that is causing a loss of transmissive type. In a later phase, for degenerative processes not fully clarified you notice a reduction in functionality in the inner ear and then a conductive hearing loss that overlaps with giving an framework of mixed type hearing loss
L ’ normal otoscopic examination is typically, auditory tests allow to give a strong suspicion of Otosclerosis: a conductive hearing loss or mixed with normal tympanogram, and slowly progressive reduction or absence of stapedial reflexes is strongly suggestive but not pathognomonic of Otosclerosis.
Diagnosis occurs only in the operating room where one estimates bracket mobility than the oval window.
When a suspicion of Otosclerosis l ’ only cure is represented by ’ surgery which involves placing an implant in place of a portion of the bracket. The results are usually very good but the success of this intervention does not ever of 100%: so expect to have a significant hearing deficit before recommending l ’ patient intervention
Palpation of the bracket to assess their mobility during cadaver dissection:
