Headache Flashcards
(75 cards)
What is headache?
Symptom
Half to three quarters of adults aged 18–65 years in the world have hadheadachein the last year and, among those individuals, 30% or more have reportedmigraine
What can categories can cause headaches?
Structural
Pharmacological e.g. blood dilators dilate vessels in brain
Psychological e.g. stress
What do we divide headaches into?
Acute single headache
Dull headache, increasing in severity
Dull headache, unchanged over moths
Recurrent headaches
Triggered headaches
What can cause acute single headaches?
Febrile illness, sinusitis First attack of migraine Following a head injury Subarachnoid haemorrhage Meningitis, tumour, drugs, toxins, stroke Thunderclap (sudden onset), low pressure
What can cause a dull headache that increases in severity?
Usually benign Overuse of medication (e.g. codeine) Contraceptive pill, hormone replacement therapy Neck disease Temporal arteritis Benign intracranial hypertension Cerebral tumour Cerebral venous sinus thrombosis
What can cause a dull headache that is unchanged over months?
Chronic tension headache
Depressive, atypical facial pain
What can cause a triggered headache?
Coughing, straining, exertion
Coitus
Food and drink
What can cause recurrent headaches?
Migraine
Cluster headache
Episodic tension headache
Trigeminal or post-herpetic neuralgia
What are red flags for headahces? (onset)
Thunderclap
Acute
Subacute
Strictly unilateral
What are red flags for headaches? (Meningism)
- photophobia
- phonophobia
- stiff neck
- non-blanching rash
- vomiting
What are red flags for headaches? (systemic symptoms)
Fever, rash, weight loss
Orthostatic - better lying down
What are red flags for headaches? (neurological symptoms or focal signs)
Visual loss, confusion, seizures, hemiparesis, double vision, 3rd nerve palsy, Horner syndrome, papilloedema
What is Horner syndrome?
Sympathetic supply to the eye is affected
Eye is droopy
Pupil is slightly smaller
What are the features of subarachnoid haemorrhage?
Sudden generalised headache
‘blow to the head’.
Meningism - stiff neck and photophobia
Most are caused by a ruptured aneurysm, a few from arteriovenous malformations.
50% instantly fatal
What is initial treatment for suspected SAH? How do you diagnose subarachnoid haemorrhage?
Nimodipine and BP control.
High risk of a further bleed
.
Early neurosurgical assessment will confirm the bleed
and establish the cause.
CT brain, Lumbar puncture (will be pink) (RBC and xanthochromia) and MRA, angiogram.
Blood is white on CT
How do you treat subarachnoid haemorrhage?
Nimodipine
Aneurysms used to be clipped or wrapped.
Nowadays filled with platinum coils.
What is coning?
Causes raised intracranial pressure
Weak points in the brain
tumour or mass grows when volume becomes significant
Brain no longer compliant after a point and seeps into weak points
Causes herniation
Brainstem death
What is papilloedema?
Papilloedema
Optic disc swelling due to raised ICP
Why is neck pain common in headaches?
Headache can also arise due to pathology in the large arteries of the neck.
What often causes stroke in young people?
Carotid & vertebral artery dissection
20% of ischaemic strokes <45 years (young stroke)
What imaging do you use to diagnose dissections?
MRI
MRA (Magnetic resonance angiography)
Doppler
Angiography
How do you try prevent stroke?
Aspirin or anticoagulation X 6/12
What is SDH?
Chronic Subdural haemorrhage
Why are SDH common in older people?
They fall
Often on blood thinners
> 65 years