Headaches Flashcards
(39 cards)
Patient gets headache every time they stand up. Diagnosis?
intracranial hypotension
What kind of problem does waking up every day with a headache suggest?
raised pressure problem
What are red flag symptoms of headaches?
New onset headache age >55 Known/previous malignancy Immunosuppressed Early morning headache Exacerbation of valsalva (coughing, sneezing, raise in ICP)
Is it more common to have migraine with or without aura?
without (80%), with aura 20%
What is the criteria for diagnosing migraine without aura?
At least 5 attacks
2 of: moderate/severe, unilateral, throbbing pain - worse on movement.
1 of: autonomic features, photophobia/phonophobia
Vascular and neural influences cause migraine in susceptible individuals. Describe blood vessels during migraine.
during aura = constrict
dilate during migraine
What causes pain in migraine?
chemicals including substance P irritate nerves and blood vessels causing pain.
Dopamine is released by stress triggers causing migraine. True or false?
false - serotonin released in response to stress triggers in brain
Which areas in brain comprise the migraine centre in the brain?
dorsal raphe nucleus
locus coeruleus
Migraine without aura last longer than migraine with aura.
True or False?
ture
without –> 4-72hrs
with aura –> 20-60 mins
What is the most common type of migraine aura? Give examples.
visual
central scotoma
central fortification
hemianopic loss
What can trigger a migraine with aura?
sleep dietary (dark choc & cheese) stress hormonal physical exertion
What drugs can be given acutely in migraine?
NSAIDs
Triptans - 5hT agonists
Give examples of acute drugs SPECIFIC to migraine.
RIZATRIPTAN - wafer form - dissolves in mouth, ~30 mins to work.
FROVATRIPTAN - for sustained relief
Patient with 4 migraine attacks in last month. What sort of medication would you consider starting?
Prophylaxis since >3/month;
consider non-pharmacological methods e.g. acupuncture, relaxation exercises.
Must trial each for minimum of 3 months
What is the aim of migraine prophylaxis medication?
titrate drug as tolerated to achieve efficacy at lowest dose possible.
go slow and keep low
What dose of amitriptyline would you give as migraine prophylaxis? What are the side effects to warn about?
10-25mg
dry mouth, postural hypotension, sedation
A beta-blocker which reduces migraine frequency in ~60-80%… what is its dose and when to avoid it?
Propranolol 80-240mg
Avoid in asthma, PVD, heart failure.
Name a carbonic anhydrase inhibitor that is used in migraine prophylaxis.
Topiramate 25-100mg
Which migraine prophylactic causes bradycardia and nightmares?
propranolol
Which migraine prophylactic causes weight loss, paraesthesia and impaired concentration?
Topiramate
Patient has a mild bilateral headache or pressing/tingling nature. No photophobia or nausea.
tension type headache
Treatments for tension type headaches?
relaxation & physiotherapy
antidepressant (dothiepin or amitriptyline) for 3 months - reassure
What are trigeminal autonomic cephalgia’s (TACs)?
a group of primary headache disorders characterised by UNILATERAL trigeminal distribution pain that occurs in association with prominent IPSILATERAL cranial autonomic features.