headaches Flashcards
serious types of headaches
- subarachnoid haemoragge
- raised ICP
- cerebral venous sinus thrombosis
- temporal arteritis
- infection (meningitis)
been going on for weeks months years
tightness and pressure round the head
Constant or is worse towards the evening
frequent analgesia
no nausea reported
tension headache
treatment for tension headache
- reassurance
- relaxation excesses
- reduce analgesia
- low dose amitriptyline (10-20 mg) - normally an anti-depressant at 150 mg +
one side at a time
with nausea
- unilateral or bilateral usually hours-days
- photophobia , phnonophobia, gut symptoms
- pulsating, sharp character
women mid cycle or menopause
aura +/-
MIGRAINE
Colured scotoma
DANGER SIGN of epilepsy
causes of migraine
- assess triggers (food, alcohol, working week)
- physical activity????
- family history ?
- keep a diary and assess patterns to establish treatments
treatment for acute headaches
- aspirin and paracetamol
- anti-nausea meds (prochlorperazine, metoclopramide)
what are the best treatments for migraines
• Triptans –
agonists at 5HT-1b and 5HT-1d receptors (serotonin)
– and related family of drugs Sumatriptan, rizatriptan, naratriptan, zolmitriptan etc
Trigeminal Autonomic Cephalagia (TAC) - quite rare but most common
cluster headache:
- unilateral - often around the eye
- striking circadian rhythm , same time of day
comes and goes - Recurrent pain in trigeminal distribution with
- Autonomic features (eye watering, nasal congestion, redness eye)
- More common in males (3:1)
• Paroxysmal hemicrania
– More common in women
– shorter, more frequent attacks,
– responds to indomethacin (non steroidal anti-inflammatory) so is a differentiator between cluster headache and paroxysmal hemicrania
Treatment of TACs
- Triptans
- Oxygen – High dose
- High dose verapamil (up to 960mg/day) – Ca channel blocker at V high doses
- Indomethacin for P Hemicrania
Medication overuse headache
– Present for > 15 days/month
– Worsened while analgesia has been used.
– patient using simple analgesia > 15 days/month, or – >10 days for other acute e.g. triptans
thunder clap headache
instant and rapidly appearing (less than 60 seconds), very severe pain
– Sub-Arachnoid Haemorrhage, ie stroke commonly from
leaking aneurism – similar presentation
– Requires urgent investigation,
• CT head looking for blood immediate,
• Lumbar Puncture after 12hours, look for blood or bilirubin and oxyhaemaglobin in CSF
(coital cephalgia).
– Type of migraine from vasospasm, quickly reversible and comes back is reassuring
Cervicogenic (arising from the neck)
– Poor posture in bed, pillow bends neck. Anatomical position is best.
– Over exertion
– Spinal degeneration – spondylosis
– usually muscular if not presenting with neurological compromise (reflex loss, weakness etc)
– Break pain/spasm cycle – anti-inflammatory or pain treatment
Sleep apnoea with CO2 retention
– Obesity
– History snoring – common with alcohol
– Tested by monitoring chest movements
– Treated with +ve pressure Oxygen
Raised Intracranial Pressure
– Headache - usually mild
– Diurnal variation – worse in morning, often gone by lunchtime
– Often mild nausea
look for neurological signs such as bilateral papilla
Infections – meningitis
– Fever
– Photophobia
– Neck stiffness
– Altered consciousness (encephalitis)
– Petechial rash from meningococcal meningitis
• can lead to purpuric areas and on to amputation
treatments for meningitis
– Most meningitis is viral, but cannot distinguish clinically, so treat with Ceftriaxone/cefotaxime or benzyl penicillin.
Temporal arteritis
– Never occurs below 50 years of age
– Jaw claudication (jaw pain on chewing)
– Maybe features of polymyalgia (tired, stiff in morning), then temporal
headache.
– Can cause blindness through embolism into the eye
Tests for Temporal arteritis
– Palpate temporal arteries for tenderness.
• If you feel pulsations and its not tender, - unlikely to be temporal arteritis but still
– Check for Raised Erythrocyte Sedimentation Rate (ESR>50)
– Can use ultrasound or temporal artery biopsy (sample error) for inflamation
management of temporal arteritis
– Use high dose steroids early (osteoporosis, hypertension, muscle wasting, truncal obesity) – problems getting off them
Cerebral venous sinus thrombosis
– Often female, on oral contraceptive pill – Headache, often severe – Raisedintercranialpressure – Often with papilloedema and seizures – Maybe MR bilateral, haem and – empty delta sign – Refer on to neurosurgical centre
Low ICP
• Following lumbar puncture (not immediate)
– Thought to be due to CSF leakage through hole left in dura
– Reduced by using atraumatic needles or angle of needle bevel
• Presentation
– Headache on standing, eased with lying
– Can develop into fits as the brain is supported less – and if left can cause death.
• Treatment:
– Blood patch for post-LP headache – stops leaking