Headaches Flashcards
headache red flags
new onset >55 known/previuos malignancy immuno-suppressed early morning headache exacerbated by coughing/sneezing
migraine with/without aura is more common
without
IHS criteria for migraine without aura
at least 5 attacks lasting 4-72 hours
2 of: moderate/sever pain, unilateral, throbbing, worse on movement
1 of: autonomic features, photophobia/phonophobia
pathophysiology of migraines
stress triggers serotonin release in brain
blood vessels constrict and dilate
chemicals (eg substance P) irritate nerves and vessels causing pain
how long does aura last in migraine with aura
20-60 mins
most common aura in migraine
visual
triggers for migraine
sleep deprivation dietary - chocolate and cheese stress hormonal - menstrual cycle physical exertion
acute pharmacological treatment for migraine
1st line - NSAID (possibly anti-emetic if gastroparesis)
2nd line - triptans (5HT agonist) e.g. rizatriptan
when should prophylactic treatment of migraines be considered
> 3 attacks/month or very severe
prophylactic drugs used in migraines
propranolol
topriamate (carbonic-anhydrase inhibitor)
when should propranolol be avoided
asthma
PVD
heart failure
SE of topiramate
weight loss
paraesthesia
impaired concentration
enzyme inducer
lifestyle factors in migraine
avoid food triggers
2L water per day - decrease caffeine
decrease stress
regular exercise
30-40 year old man
severe unilateral headache lasting 20 mins-3 hours 1-8 times per day
cluster headache
how long does cluster bout last
weeks-months