A. Vertigo
- ~90% are vestibular
- Peripheral Vertigo (40%)
- Benign positional vertigo (~75%)
- Labyrinthitis (vestibular neuronitis)
- Menier's Disease
- Central Vertigo
- Acoustic Neuroma
- Intracranial pressure abnormalities
- Idiopathic
- Audiometry is helpful to distinguish
- Nystagmus
- This is the major sign of true vertigo
- Vertical nystagmus is always abnormal
B. Presyncope / Syncope
C. Dysequilibrium
- Peripheral neuropathy
- Previous Stroke
- Arthritis
- Parkinson's Disease
D. Mental Status Changes E. Psychiatric Disease (~20%)