A Scientific and Clinical Approach to Acute Vertigo Flashcards
what is Vestibular-motion perception
sensation of motion- of self or environment
What is seeing environmental motion known as
Oscillopsia
Oscillopsia is…
Seeing environmental motion
Oscillopsia indicates…
nystagmus
Vertigo is…
Sensation of spinning of self and environment
2 types of Vertigo?
LOW current: Gentle rocking sensation
HIGH current: Violent spinning of self and room
What is dizziness defined as
see the world moving
Why do people feel like they’re still when in reality they’re on a moving chair
they begin to feel still because the fluid in the semi-circular canals moves with the chair
Acutely symptoms [may/may not] follow signs
may
Chronically symptoms [may/may not] follow signs
may not
Where is the area in the brain that relates to ability to suppress dizziness
Vestibular cerebellum
Phrases that could be used by patients to describe vertigo:
floating, spinning like a merry-go-round, rocking like a boat
Common causes of vertigo? (5)
BPPV - Benign paroxysmal positional vertigo Vestibular neuritis Stroke Menieres Anxiety Syncopy
Parts of the vestibular system? (6)
Cerebral cortex Thalamus Vestibular cerebellum The peripheral vestibular organ Ponto-medullary junction Spinal cord
First 3 things you do in A&E with a patient with vertigo?
you want to exclude presyncope, pulmonary embolism and cardiac arrhythmia so you would check postural BP, arterial saturation and do an ECG