headaches Flashcards
what are the characteristics of tension headaches?
- pressing or tightning pain
- often bilateral
- can extend from top of the cranium into the neck
- photo and phono phobia
- not worsened by mild physical activity
what is tension headaches commonly caused by?
stress or fatigue
what is migrain with aura?
described as visual disturbances like zigzags,lights and colourful spots.
what does it mean if you see migrain aura with white flashers?
this might siggest retinal issues such as retinal deteachment. this is typically unilateral
migrain aura is accomponied by what symptoms?
- fatigue
- mood changes
- sleep disturbances
what is the cause of aura activity?
- increased cortical activity in the brain causing vasoconstriction
- the vasoconstriction causes temporary hypoxia and nerve irritation
after the aura vasoconstriction, migrains occur, often due to what?
vasodilation
the migrainal vasodilation effects which cranial nerve?
the trigeminal nerve
the effects on the rigeminal nerve from the vasodilation causes sensitivity to what?
- hot/cold sensations
- pressure and touch
- movement to the jaw and face
why might migrains present as more severe then they actual are?
migrains impact deep cortical structures in the brain such as
- brainstem
- autonomic centres
- affective positive sensory area
what are hemiplegic migrains?
migrains that effect one side causing weakness or paralysis
what are manegment considerations for hemiplegic migrains?
- treat it like a stroke until proven otherwise and preform a stroke assesment
what is Ataxia?
impaired coordination or gait such as leg dragging
what is the pathology behind a migrains influence on the RAS
the vasoconstriction induced hypoxia followed by vasodilation can cause temporary LOC
how does migrain pain occur?
migrains “march” meaning they worsen overtime
- this is how you can differentiate between serious vs not serious.
- typically more serious conditions come abruptly