bppv normal physiology pathophysiology – a positioning vertigo diagnosis – correlating disease...
TRANSCRIPT
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BPPV
• Normal physiology
• Pathophysiology – a positioning vertigo
• Diagnosis – correlating disease with symptoms and signs
• Cure – The Epley Manoeuvre
• Place of drugs – none
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BPPV
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Animation
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Correlate pathophysiology with symptoms
• Symptoms only occur when a particular SCC is stimulated
• The duration of an individual episode of vertigo is typical – seconds only
• Episodes come in spells
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Diagnosis and Cure
• The Dix Hallpike test is diagnostic
• The Epley Manoeuvre is curative
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Dix 1
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Dix 2
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Dix 2b
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Right Ear Downwards
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Characteristics of the nystagmus
• Latent period – it doesn’t start immediately
• Duration – less than a minute
• Geotropic – towards the undermost ear
• Reversed – when sitting up
• Fatigable – less severe on second test
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Epley