Damage to Cranial Nerve VIII and Vestibulocochlear Dysfunction. Eardrum perforation caused by blast and from the tympanic facial nerve well lateral to the medialmost extent of the posterior bony canal wall, which may have been eroded by cholesteatoma (see Fig. ). Inadvertent injury to the facial nerve can also occur during parotid surgery, mastoidectomy and reconstruction of the eardrum. The use of intraoperative facial nerve monitoring has significantly reduced the rate of facial paralysis following acoustic neuroma excision; however, the frequency of facial nerve injury is still significant when managing large tumors.
Eardrum perforations are most often caused by infection, injury or Eustachian tube disorders. Middle ear infections cause a buildup of pressure that may result in a ruptured eardrum. Injury or trauma to the ear or head can cause a perforation, as can a skull fracture or sudden loud noise, such as an explosion. Jul 18, · damage to your facial nerve or the nerve controlling your sense of taste; damage to the bones of your middle ear, causing hearing loss; dizziness; incomplete healing of .
Some of the possible risks and complications of a Tympanoplasty are infection, the graft not holding and exposing the hole in the eardrum, further hearing loss, ringing in the ears, dizziness or facial nerve damage or numbness in the outer ear. Also you may experience dry mouth or notice a change in your sense of taste. Facial nerve paralysis because of penetrating trauma through the external auditory canal is extremely rare, with a paucity of published literature. The objective of this study is to review the literature on transtympanic facial nerve paralysis and increase physician awareness of this uncommon injury through discussion of its clinical presentation, management and prognosis.
Middle ear infections may cause pressure, pain, hearing loss, rupture of the eardrum, and drainage (otorrhea). Some ear infections may be complicated and produce chronic drainage, tympanic perforations, cholesteatoma, labyrinthitis, and facial nerve injury.