Definition: Sudden onset of sensorineural hearing loss of unknown origin, which can occur within minutes, hours or 3 days, with a hearing loss of at least 20 dB in at least 2 connected frequencies.
Diagnosis
1. Sudden onset, within minutes, hours, or 3 days.
2. Non-fluctuating sensorineural hearing loss, which can be mild, moderate or severe, or even total deafness. Hearing loss of at least 20 dB in at least 2 connected frequencies. Most often unilateral, but occasionally bilateral or sequential. Zhang Mingxia, Department of Otolaryngology and Head and Neck Surgery, Xuanwu Hospital, Capital Medical University
3. The cause is unknown (no clear cause including systemic or local factors).
4. With tinnitus and ear blockage.
5. With vertigo, nausea, vomiting, but not recurrent.
6. No other symptoms of cranial nerve damage except for the eighth cranial nerve.
Treatment principles
Early comprehensive treatment, actively search for the cause of the disease.
1. General treatment: pay attention to rest, appropriate sedation, and actively treat related diseases, such as hypertension and diabetes mellitus.
2. Drugs to improve microcirculation in the inner ear.
3. Glucocorticoid drugs.
4. Reduce blood viscosity and anticoagulant drugs.
5. Neurotrophic drugs.
6. Other treatments, such as mixed oxygen, hyperbaric oxygen and other treatments.