II. Epidemiology
- Incidence: Rare
III. Etiology
- Complication of Acute or Chronic Otitis Media
- May be associated with Cholesteatoma
IV. Symptoms
- Sudden onset Vertigo with severe Nausea and Vomiting
- Symptoms persist in first 12 hours despite immobility
- Complete Hearing Loss in affected ear
- Distinguishes Labyrinthitis from Vestibular Neuronitis
- Associated with Tinnitus
V. Signs
- Rapid Nystagmus toward opposite side
VI. Course
- Vertigo and Nystagmus resolve over days to weeks
- Tinnitus resolves
- Hearing Loss persists
VII. Imaging: CT Head or MRI Head
- Assess for Brain Abscess
VIII. Management
- Antibiotics for 10 day course
IX. Complications
- Persistent Hearing Loss in the affected ear is the norm
- Meningitis from local spread