What is a migraine?
recurrent attacks of severe headache, autonomic nervous system dysfunction, and, in some patients, an aura causing visual, sensory, motor, or other neurologic symptoms. It is a primary headache disorder with a genetic basis.
What are demographics of people who tend to get migraines?
attacks typically begin in the sec- ond decade of life and peak in prevalence in the fourth decade, affect- ing about 1 of 4 women and 1 of 12 men
What is the pathophysiology of migraines?
abnormal trigeminal nerve and thalamic activity, possibly triggered by a sterile neuropeptide-induced inflammatory process, leads to activity and sensitization of higher order neurons in the brainstem and thalamus. Descending modulation is likely to be compromised as well
What is the mechanism behind migraine aura?
Cortical spreading depression, a neuro- electrical event characterized by a slow wave of depolarization
What is the defn of a migraine?
chronic and recurrent disease with a gradual onset of a unilateral pulsatile headache moderate to severe in intensity, exacerbated by routine activities
- lasts 4-72h
List 4 primary migraines via the international headache society classification of headaches
List 5 secondary migraines via the international headache society classification of headaches
List the A-E criteria of migraine without aura
A. At least five attacks fulfilling criteria in B, C, D, and E
B. Attack lasts 4 to 72 hours (untreated or unsuccessfully treated) C. Headache has at least two of the following characteristics:
1. Unilateral location
2. Pulsating quality
3. Moderate to severe pain intensity
4. Aggravation by or causing avoidance of routine physical activity (e.g.,
walking or climbing stairs)
D. During headache, at least one of the following:
1. Nausea or vomiting (or both)
2. Photophobia and phonophobia
E. Not attributable to another disorder
List the A-E criteria of migraine WITH aura
A. At least two attacks that fulfill criterion B
B. Presence of at least three of the following four characteristics for a diag-
nosis of classic migraine:
1. One or more fully reversible aura symptoms indicating focal cerebral
cortical or brainstem dysfunction (or both)
2. At least one aura symptom developing gradually over more than 4 min-
utes, or two or more symptoms occurring in succession
3. No single aura symptom lasting longer than 60 minutes
4. Headache beginning during aura or afterward, with a symptom-free
interval of less than 60 minutes (also may begin before aura)
C. Exclusion of related organic diseases by means of an appropriate history, physical examination, and neurologic examination with appropriate diag-
nostic tests
How many migraines per month does it take to consider being chronic?
15
What is the mc aura and what might it include?
visual; features may include scintillating sco- toma (bright rim around an area of visual loss), teichopsia (subjective visual image perceived with eyes open or closed), fortification spectra (zigzagged lines that slowly drift across the visual field), photopsias (poorly formed brief flashes or sparks of light), and blurred vision
What is a retinal migraine?
are syndrome consisting of recurrent attacks of monocular visual dysfunction, including positive features (such as scintillations) or negative features (such as blindness). As with aura, these symptoms are completely reversible.
What is the classic presentation of a hemiplegic migraine?
characterized by a motor aura consisting of hemiparesis or hemiplegia. The progression of the motor deficit is gradual and, in most cases, is accompanied by a visual, sensory, or speech disturbance. The neurologic symptoms last up to 60 minutes, followed by headache
What is a migraine with brainstem aura?
aura referable to the brainstem. Common neurologic findings include dysarthria, tinnitus, vertigo, diplopia, and altered level of consciousness.
What is the defn of status migrainosus?
severe unremitting migraine headache that persists unabated for more than 72 hours.
Name 5 factors that can trigger migraine?
sleep deprivation, stress, hunger, hormonal changes, including menstruation, and use of certain drugs, including oral contraceptives and nitroglycerin. In addition, some patients report specific food sensitivities to chocolate, caffeine, and foods rich in tyramine, monosodium glutamate, and nitrates. Alcohol, specifically red or port wine, has also been implicated. In others, cer- tain sensory stimuli, such as a strong glare or strong odors, loud noises, and weather changes, can trigger an attack.
Which patients with migraine should consider getting a ct?
older or immunocompromised patients with new-onset headaches, headaches associated with unexplained neurologic abnormalities, and new head- aches with an abrupt onset
What are 5 oral migraine medications and doses?
- list 1 SE/consideration per
Ibuprofen
400 mg PO
Gastrointestinal upset
Naproxen sodium
500 mg PO
Gastrointestinal upset
Acetaminophen + metoclopramide
650 mg + 10 mg PO
Combination therapy has better efficacy than acetaminophen alone
Sumatriptan
50–100 mg PO
Use cautiously in patients with cardiovascular risk factors
Eletriptan
40 mg PO
Use cautiously in patients with cardiovascular risk factors
Ubrogepant
50–100 mg
may cause transaminitis
What are 3 FIRST-line parenteral migraine medications and doses?
- list 1 SE/consideration per
Prochlorperazine
10 mg IV
Sedation and dystonic reaction
Metoclopramide
10 mg IV
Dystonic reaction
Droperidol
2.5 mg IV
QT prolongation; dystonic reaction
Ketorolac
15 mg IV or 15 mg IM
Gastrointestinal upset; avoid this medication in elderly patients and in patients with renal insufficiency
Sumatriptan
6 mg SC
Chest pain, throat tightness, flushing
Contraindicated with hypertension, coronary artery disease,
peripheral vascular disease, and pregnancy Cannot be used within 24 hours of ergot use
What are 2 second-line parenteral migraine medications and doses?
- list 1 SE/consideration per
Dihydroergotamine (DHE)
1 mg IV or IM; may be repeated in 1 hour
Nausea (pretreat with antiemetic)
Often causes chest pain
Caution in inhibitors of enzyme CYP450 3A4
Magnesium sulfate
2 g IV
More efficacious in migraine with aura
What is a procedure one may consider for migraine?
greater occipital nerve with 6ml bupivicaine 0.5% inj bilaterally
What additional medication for migraine may be considered in pt with recurrence?
dex 10mg IV
Describe how to complete a greater occipitial nerve block for migraine
injector identified the appropriate location using landmarks on the patient’s head. The medial landmark was the occipital protuberance. The lateral landmark was the mastoid process. Using these landmarks to form a line, the injector identified the correct location, which was one-third of the distance from the occipital protuberance along this line (two-thirds of the distance away from the mastoid process). The injector felt for pulsation of the occipital artery and attempted to elicit pain or paresthe- sia in the distribution of the GON by pressing slightly. The injector then used a fan technique, placing 1 mm of anesthetic at the correct spot, 1 mm slightly medial of the correct spot, and 1 mm slightly lateral to the correct spot.
What are common side effects of triptans
tingling, flushing, warm or hot sensations, heaviness in the chest, and initial worsening of the underlying headache