Viral Labyrinthitis (Vestibular neuronitis)
A sudden onset of vertigo with nausea and often vomiting, coming on sometimes at night or in the morning, and not associated with other significant symptoms, is suggestive of this diagnosis. Most patients will seek immediate medical attention, often in the Emergency Room, where appropriate tests are likely to be carried out to try to reach a diagnosis and rule out more serious illnesses.
Symptoms may persist for some days despite bed rest and medications but will usually settle gradually, although complete recovery can occasionally take weeks. However further tests are usually required to ascertain the diagnosis and rule out other more serious conditions.
The cause is considered to be a viral infection. The condition often follows a cold or flu or sinus infection, usually some few weeks before the onset of symptoms. Treatment includes labyrinthine sedatives and possibly other medications, as well as rest in the early phases, but may require physical therapy later to aid recovery.
Once again we stress that the diagnosis can only be made when investigations have ruled out other disorders.
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