Some Causes of Sudden Hearing Loss
Type | Examples |
|---|---|
Idiopathic | N/A Accounts for a majority of cases |
Obvious events | Acute infections (eg, bacterial meningitis, mumps, herpes) |
Major head or ear trauma (including barotrauma during scuba diving causing perilymphatic fistula) | |
Other disorders | |
Systemic rheumatic and autoimmune disorders (eg, Cogan syndrome, granulomatosis with polyangiitis) | |
Cerebellar stroke | |
Reactivation of syphilis in HIV-infected patient | |
Red blood cell abnormalities (eg, sickle cell disease) | |
Vascular disorders (eg, vertebrobasilar insufficiency) | |
* Loss occurs over 1–2 days. | |
N/A = not applicable. | |
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