How does traumatic deafness recover?

summary

Traumatic deafness refers to bilateral severe high-frequency nerve deafness or mixed deafness caused by closed craniocerebral trauma. It mainly occurs in mines, tunnels, divers, blasters, soldiers, airport staff and so on. Therefore, in life, we should pay attention to it. Now let's talk about how to recover from traumatic deafness?.

How does traumatic deafness recover?

First, trauma is one of the important causes of acquired deafness. According to statistics, 1.9% of acquired deafness is caused by ear trauma. The first aid of traumatic deafness has its own "golden period".

Second, the main causes of traumatic nerve deafness are strong concussion of the head and skull fracture. Don't think it's OK to be smashed or dropped. When the head is hit, the pressure wave will spread to the skull base, affecting the intracranial structure and damaging the auditory brainstem. It can also cause excessive relative movement of stapes foot plate due to ossicular inertia, resulting in labyrinth concussion, inner ear bleeding, inner ear hair cells, organ of Corti and cochlear nerve damage, as well as rupture of window membrane and displacement of vestibular membrane.

Third, doctors specially remind that hearing impairment caused by brain trauma may also be secondary to blood supply disorder. The blood of the inner ear is mainly supplied by labyrinth artery, which is mainly supplied by anterior inferior cerebellar artery or terminal branch of basilar artery. Blood circulation disorder of the inner ear can cause ischemia and hypoxia of the inner ear, induce free radical reaction, increase of excitatory neurotransmitter, and increase of blood pressure A series of secondary injuries, such as intracellular calcium overload, inner ear related enzyme changes and hair cell apoptosis, lead to hearing loss.

matters needing attention

Therefore, for the treatment of traumatic nerve deafness, it is mainly to early diagnosis and early treatment, which is the "first aid" in otology. Traumatic nerve deafness, like cerebral infarction and myocardial infarction, has a very strict treatment time window. From injury to the beginning of deafness treatment, the length of the interval is significantly correlated with the treatment effect. The shorter the interval is, the more obvious the effect is. If the best treatment time is missed, permanent hearing loss is likely to occur.