Peripheral or Central Vertigo

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Can you name the Peripheral or Central Vertigo ?

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Sign or Symptoms Central (C) or Peripheral (P) Vertigo
Bidirectional or Unidirectional nystagmus
Common causes: vascular, demyelinating, neoplasm
Vertical or purely torsional nystagmus may be present
Purely horizontal nystagmus may be present
Associated CNS abnormalities - diplopia, hiccups, cranial neuropathies, dysarthria
Unidirectional fast phase nystagmus
Caused by BPPV, infection (labyrinthitis), Menieres neuronitis, ischemia, trauma, toxin
Chronic duration of symptoms
Marked severity of vertigo
Sign or Symptoms Central (C) or Peripheral (P) Vertigo
Spin toward fast phase
No inhibition of visual fixation
Mild vertigo
Tinnitus usually absent
Visual fixation inhibits nystagmus and vertigo
Fall toward the slow phase
Tinnitus often present
Finite symptoms (minutes, days, weeks) but recurrent

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