Headache Flashcards
Migraine
unilateral but not side-locked
• pounding or pulsatile quality
• photophobia, phonophobia, osmophobia *light, loud sounds, odor
• nausea with or without vomiting
• typically 4-24 hours
• aura (classic) - begins 5-30 min before HA
– lasts 15-30 min
– scotomata - flashing lights, bars
– sometimes somatosensory
– may be independent (acephalgic migraine)
* if no aura then it is common, not classic
Complicated migraine
Will also present with:
- ophthalmoplegia,
- homonymous hemianopsia
- hemianesthesia,
- hemiplegia,
- word-finding difficulty
The vascular theory of vasodilation has been debunked, what is the cortical spreading depression
Cortical spreading depression (CSD) or spreading depolarization is a wave of electrophysiological hyperactivity followed by a wave of inhibition.[1] Spreading depolarization describes a phenomenon characterized by the appearance of depolarization waves of the neurons and neuroglia[2] that propagates across the cortex at a velocity of 2–5 mm/min.[3][4][5] CSD can be induced by hypoxic conditions and facilitates neuronal death in energy-compromised tissue.[6] CSD has also been implicated in migraine aura
Complex neurovascular/neurochemical process that
ultimately results in activation of trigeminal pain
pathways • brainstem nuclei (locus coeruleus and dorsal raphe
nucleus superior salivary nucleus pterygopalatine
ganglia pia, dura, and blood vessels, also to trigeminal
nucleus which excretes CGRP (a potent vasodilator)
[calcitonin gene-related peptide] • CGRP stimulates MMP (matrix metalloproteinase) which
releases polypeptide “soup” to blood vessels, involves
serotonin, bradykinin, substance P, neurokinin P & Y, and
prostaglandins, causing perivascular inflammation and
pain
Medication Overuse headache
Taking medications more than twice per week in general
Headache occurring on ≥15 days per month in a patient with a
preexisting headache disorder
Regular overuse for > 3 months of one or more drugs that can be taken for acute and/or symptomatic treatment of headache, need to switch to preventative measure.
Caffeine, Excedrin, Fioricet, Fiorinal (acetaminophen/butalbital/caffeine) Triptans (5-HT agonists) Ergotamine Other analgesics or combination analgesics including opioids and NSAIDS
SUNCT
5 secs - 4 minutes,
up to 200x day
stabs of pain around the eyes and temple - unilateral hemicrania.
Short-lasting unilateral neuralgiform
headache attacks with conjunctival injection and
tearing)
Moderate or severe unilateral head pain, with orbital,
supraorbital, temporal and/or other trigeminal distribution,
lasting for 1–600 seconds and occurring as single stabs, series
of stabs or in a sawtooth pattern
Pseudotumor cerebri - idiopathic intracranial hypertension
↑ intracranial pressure No structural CNS abnormality No CSF outflow obstruction Need to rule out other causes of ↑ intracranial pressure (e.g. sinus venous thrombosis Chronic headache – positional Blurred vision – papilledema Tinnitus Diplopia - cranial nerve VI palsy Lumbar puncture demonstrates high opening pressure
Low CSF pressure headaches
Spinal headache”, “Spinal leak” after lumbar
puncture (LP)
Shift and traction on intracranial vessels from ↓
intracranial tension
Positional – only upon sitting or standing
Ruptured Tarlov cyst - meningeal cysts in S1 to S2.
Self-limiting
Treatment: IV fluids, IV caffeine, epidural blood patch
sinus headache
Treatment:
treatment: humidifier, saline nasal spray, breathing in
steam 2-4 times per day, quickly treating allergic and
asthmatic attacks, stretches for head and neck,
relaxation techniques, antibiotics for sinusitis, nasal
corticosteroids or antihistamines or decongestants
.=dull, deep, throbbing in center of head
**worse with bending down or leaning over
worse in cold and damp weather
begins as soon as you get up in morning, mucus has been collecting and draining all night
may be better in the afternoon
pressure-like pain behind one specific part of face
tender to touch on face
pain worse with sudden movements of head
headache often starts after a bad cold
postnasal drip
yellow or green discharge from nose
red and swollen nasal passages (nasal congestion)
mild to moderate fever
general sense of not feeling well
fatigue
Chiari malformation
downward displacement of cerebellar tonsils at least
3 mm into upper cervical canal
common syringomyelia (syrinx) (hydromyelia)
cervical > cervicothoracic
Tx: suboccipital craniectomy, C1 ring laminectomy
occipital or upper cervical headache with valsalva [bending over,
laughing, coughing and sneezing]
neck, shoulder, back pain
brainstem or spinal cord dysfunction
cranial nerve deficits rarely
sensory or motor dysfunction, urinary incontinence
Cerebellar: clumsiness, ataxia, cerebellar fits
Eyes/Vision: down-beating nystagmus, oscillopsia, esotropia,
photophobia, eye pain, floaters, blurry vision, diplopia, field cuts
Respiratory: sleep apnea from lack of patent airway, respiratory
difficulties
Speech/Swallow syncope with cough, common diminished gag, vocal
cord paralysis, hiccups
Hearing: tinnitus, fluctuating hearing loss, vertigo, nausea
neuralgia
Neuropathic pain in the distribution of a cranial nerve sharp, brief, lancinating Trigeminal Neuralgia (tic douloureux) Older adults Women > men Anticonvulsants (e.g., carbamazepine, oxcarbazepine) Fancier interventions Multiple Sclerosis Occipital Neuralgia Glossopharyngeal Neuralgia others
Temporal arteritis
Inflammatory arteritis of the temporal artery (opthalmic is a branch of temporal) > internal carotid
Clinical features
Headache
Monocular visual loss – irreversible!
Jaw claudication - pain from artery occlusion,
Loss of temporal artery pulses
Systemic symptoms
↑ Erythrocyte Sedimentation Rate (> 100 mm/hr) - increased inflammation, higher proportion of fibrinogen causes RBCs to stick together,
Diagnosis: Temporal artery biopsy
Treatment: Steroids
Status migrainosus
migraine lasting > 72 hours
• initial options: ketorolac, metoclopramide, IV fluids
• second options: sumatriptan, DHE, methylprednisolone,
valproic acid, MgSO4
Transformed migraine
-moved into chronic daily headache
SUNCT
Short-lasting unilateral neuralgiform
headache attacks with conjunctival injection and
tearing)
SUNA
Short-lasting unilateral neuralgiform
headache attacks with cranial autonomic symptoms)
SUNA - Attacks last 7 days to 1 year, separated by pain-free
periods lasting at least 1 month