What causes sudden deafness?

Sudden deafness is an emotion-related disorder that used to be high in middle-aged and elderly people. However, in recent years, with the acceleration of the pace of life and the increase of mental stress, the incidence of sudden deafness has increased, and there is a trend of younger people.

Because the site of sudden deafness injury is in the inner ear, that is, the peripheral part of the nerve, and the nerve cells are not renewable, the effective rate of sudden deafness** is less than 70%. Therefore, the sudden deafness must not be delayed. At present, it is believed that the most effective drug for sudden deafness is glucocorticoids, which should be used early, in sufficient amount, and gradually decreasing, and the elderly and children should be cautious and reduced.

In addition, it should be used at the same time with drugs that improve blood circulation in the inner ear and reduce blood viscosity. If the patient is considered to have an inner ear blood supply disorder, drugs to dissolve the blood clot should be used early. If the patient has a history of colds within two weeks prior to the sudden deafness, the possibility of inner ear damage due to viral infection should be considered, and antiviral drugs should be used.

In addition, hyperbaric oxygen chambers**, vitamins and energy mixtures are also effective. Studies have found that the efficacy of sudden deafness is related to the severity of the patient's hearing loss, whether it is accompanied by vertigo, and the morning or evening of **. Patients with total hearing loss, if accompanied by vertigo,** delay until a week later, do not have a good effect.

It is worth noting that some patients with ear diseases also present with sudden deafness, which may be caused by acoustic neuroma, otitis media, ototoxic drugs, shock injury, trauma and other factors. Therefore, to diagnose "sudden deafness", it is important to rule out other causes of deafness.

Sudden deafness is mainly related to two factors, one is the blood circulation disorder of the inner ear, such as blood flow disorders, blood viscosity and high viscosity; There is also a viral infection, as some evidence of a viral infection has been found in the extract from the inner ear. Of course, not all patients with sudden deafness have a viral infection. There are some other reasons, such as trauma, development of the inner ear, etc.

Sudden deafness is a sudden sensorineural hearing loss, which is mainly manifested by sudden hearing loss on one side, accompanied by tinnitus and earplug sensation. There are several theories about the mechanism of occurrence in the academic world, such as circulatory disorders, viruses, infections, and immune problems, which are mainly related to circulatory ischemia of the inner ear, hypoxia, vasospasm, and even thrombosis.

Cardiovascular and cerebrovascular diseases, cerebral insufficiency, long-term insomnia, sinusitis, mental stress, and neurological tinnitus can all lead to sudden deafness.