Balance Disorders Notes
This is a sample of our (approximately) 5 page long Balance Disorders notes, which we sell as part of the ENT Notes collection, a MBChB (hons) (1st) package written at University Of Leicester in 2014 that contains (approximately) 36 pages of notes across 16 different documents.
The original file is a 'Word (Docx)' whilst this sample is a 'PDF' representation of said file. This means that the formatting here may have errors. The original document you'll receive on purchase should have more polished formatting.
Balance Disorders Revision
The following is a plain text extract of the PDF sample above, taken from our ENT Notes. This text version has had its formatting removed so pay attention to its contents alone rather than its presentation. The version you download will have its original formatting intact and so will be much prettier to look at.
Balance Disorders Vertigo = illusion of movement
Normal balance requires o Accurate sensory information from
Vestibular labyrinth o Co-ordination of information in brain o Normal motor output from CNS to intact musculoskeletal system
A fault in any of the above impairs balance
Vertigo is always a symptom of vestibular defects o Severe if accompanied by nausea and vomiting Can be caused by o Peripheral vestibular disorders (BPPV, Menieres', labrynthitis) o Spread of infection from middle ear disease to labyrinth o Central vestibular disorders e.g MS, tumours, infarcts o External insults by drugs, anaemia, hypoglycaemia etc
Benign Paroxysmal Positional Vertigo (BPPV) Commonest cause of vertigo
Detachment of otoconia (calcium carbonate crystals) from the otolith organ of the utricle - fall into posterior semicircular canal (loose inside canal) Cause symptoms on movement of the head
Head injury Viral infection Degenerative changes with aging Idiopathic
Episodic attacks or vertigo provoked by head movements e.g rolling over in bed/looking upwards Violent symptoms but last only seconds No auditory symptoms Episodes usually last for several months before disappearing but often recur Both labyrinths may be affected
Reassurance, advice to avoid provoking head position until recovery Avoid alcohol Epley maneuvers may help reposition otoconia away from the posterior canal Medication o Betahistine
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