Headaches Flashcards
What kind of onset may headaches have?
Acute
Subacute
Gradual
What kind of exacerbating factors may headaches have? Give examples.
Valsalva
e.g coughing, sneezing, straining
Headaches may have …….. variation
DIURNAL
Name some associated symptoms of headaches.
Photophobia, phonophobia, positive visual symptoms, ptosis, miosis, nasal stuffiness etc
Migraines tend to occur in…..
YOUNGER FEMALES
List the 5 red flags of headaches.
New onset in someone >55 Known/previous malignancy Immuno-suppressed Early morning headache Exacerbated by Valsalva
What should you be aware of in someone’s PMH?
Previous CA
Predisposition to thrombus
What should be asked about in FHx?
Migraines
What should you remember to ask about in drug history?
Over the counter medication
Headaches are more common in?
WOMEN
On average, how often do most people have an attack?
1 per month
What % experience migraine i) with aura ii) without aura?
i) 20%
ii) 80%
What is the HIS criteria for a migraine without aura?
- At least 5 attacks.
- Of duration 4-72hours.
+ - 2 of: moderate/severe, unilateral, throbbing pain, worse with movement.
- 1 of: autonomic features, photophobia/phonophobia
What 2 influences cause an individual to be susceptible to migraines?
Neural and vascular
Describe the pathophysiology of a migraine.
Stress triggers changes in the brain, and these changes cause SEROTONIN to be released.
Blood vessels constrict and dilate.
Chemicals including SUBSTANCE P irritate nerves and blood vessels, causing pain.
Aura is a …….
FULLY REVERSIBLE visual, sensory, motor or language symptom
What does aura duration tend to be?
20-60 minutes
When does a headache occur in relation to aura?
<1 hour but both can occur simultaneously
What type of aura is most common?
VISUAL
positive symptoms usually monochromatic
Suggest factors which may trigger a headache.
Sleep. Dietary – cheese, red wine. Stress. Hormonal – young females in early teens, or females in 40’s. Physical exertion.
What can be used to help identify triggers?
A headache diary
Suggest non-pharmacological methods of treating a migraine.
- Set realistic goals
- Education – avoid triggers
- Headache diary
- Relaxation/Stress management
Pharmacological treatment is either?
Acute or Prophylactic
Outline the acute management of a headache.
Aspirin 900mg
Naproxen 250mg
Ibuprofen 400mg
+ anti-emetic
What kind of drug are triptans?
5 HT agonist
When are triptans taken?
At the start of the headache
What should be considered when deciding the route of triptans?
If patient has nausea and vomiting then don’t give oral
When should prophylaxis for headaches be considered?
If person is having more than 3 attacks per month, or very severe attacks
How long should a prophylactic drug be trialled for?
At least 3 months
What non-pharmacological methods should be tested for prophylaxis?
Acupuncture
Relaxation exercises
Name 2 prophylactic drugs.
Propanolol
Topiramate
What does propranolol do?
Reduction in migraine frequency in around 60-80% of patients.
What is the range of suitable doses of propanolol?
80-240mg