Reinstatement phenomenon

Introduction Fu Cong phenomenon is a symptom of sudden deafness. Sudden deafness (hereinafter referred to as abrupt) is a sudden onset of sensory neurological deafness, also known as violent. Its onset is rapid, rapid progress, and the treatment effect is directly related to the time of treatment. It should be regarded as an emergency department for otology. Fu Cong phenomenon: The degree of hearing loss is reduced or disappeared due to the increased sound intensity of the stimulus; the strong sound tolerance is reduced, and the patient feels ear pain when the normal human's strong sound tolerance (105-110 dB) is not reached.

Cause

The cause of the sudden death is unknown, and there are more than 100 causes of the disease in the literature, many of which are rare. According to Mattox (1977), the cause of the disease is viral infection, vascular disease, endolymphedema, labyrinthine rupture, and the combination of these factors.

an examination

Related inspection

General examination of the ear, otoscopy, external ear examination, Otolaryngology, CT examination

(1) Deafness. The disease is fierce, hearing loss can occur in an instant, hours or days, and there are sudden deafness in the morning. The slower deafness can gradually increase, and it will not stop until a few days later. The degree is from mild to full. It can be temporary or permanent. Mostly one side, occasionally both sides occur simultaneously or sequentially. It can be a cochlear or a sinus.

(2) Tinnitus. Tinnitus occurred before and after deafness, accounting for about 70%. It usually appears several hours before deafness, mostly buzzing, and can last for 1 month or longer. Some patients may emphasize tinnitus and ignore hearing loss.

(3) Dizziness. About 2/5 days 1/2 sudden acne with varying degrees of vertigo, about 10% of which are severe deafness, nausea, vomiting, lasting 4 to 7 days, mild halo can exist for more than 6 weeks. A small number of patients with vertigo as the main symptom to see a doctor, easily misdiagnosed as Meniere's disease. Relieved after a few days, no repeated attacks.

(4) Ear blockage. The occlusion of the ear generally precedes the deafness.

(5) Eye damage. If there is dizziness, there may be spontaneous nystagmus.

Differential diagnosis

The disease should be differentiated from drug-induced deafness, benign paroxysmal vertigo in children, various chronic otitis media hearing disorders, congenital middle ear inner ear malformations.

(A) deafness: the disease is fierce, hearing loss can occur in an instant, hours or days, but also in the morning when the sudden deafness. The slower deafness can gradually increase, and it will not stop until a few days later. The degree is from mild to full. It can be temporary or permanent. Mostly one side, occasionally both sides occur simultaneously or sequentially. It can be a cochlear or a sinus.

(2) Tinnitus: There are many tinnitus before and after deafness, accounting for about 70%. It usually appears several hours before deafness, mostly buzzing, and can last for 1 month or longer. Some patients may emphasize tinnitus and ignore hearing loss.

(C) vertigo: about 2/5 days 1/2 sudden acne with varying degrees of vertigo, about 10% of which are severe deafness, nausea, vomiting, lasting 4 to 7 days, mild halo can exist for more than 6 weeks . A small number of patients with vertigo as the main symptom to see a doctor, easily misdiagnosed as Meniere's disease. Relieved after a few days, no repeated attacks.

(4) Ear blockage: The ear blockage usually appears before the deafness.

(5) nystagmus: if there is vertigo, there may be spontaneous nystagmus.

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