Benign paroxysmal positional vertigo (BPPV) is characterized by brief spinning sensations, usually lasting less than 1 minute, which are generally induced by a change in head position with respect to gravity.
Benign paroxysmal positional vertigo (BPPV) is characterized by brief spinning sensations, usually lasting less than 1 minute, which are generally induced by a change in head position with respect to gravity.
Diagnostic Criteria for Benign Paroxysmal Positional Vertigo
Common Causes of Vertigo
Otologic disorders
Neurologic disorders
Dix-Hallpike Maneover for Positional Nystagmus
| Peripheral disorder | Central disorder | |
| Latent period before onset of positional nystagmus | 2 to 20 seconds | None |
| Duration of nystagmus | Less than 1 minute | Greater than 1 minute |
| Fatigability | Fatiguing with repetition | Nonfatiguing |
| Direction of nystagmus | Only one type, usually horizontal/rotatory | May change direction with a given head position |
| Intensity of vertigo | Severe | Less severe, sometimes none |
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Created: Dic 23, 2005
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