DDx- headache Flashcards
What are the ‘Do Not Miss’ of HA aka Secondary Causes?
SAH, Meningitis (infection), Temporal Arteritis, Glaucoma, HTN, Cerebral ischemia/CVA/TIA, Arterial Dissection, and Brain Tumor, also space occupying lesion.
What is SNOOP?
Systemic symptoms of dz, Neurological, Onset- sudden thunderclap, Onset- before age 5 or before age 50, Pattern change- progressively worse or waking up from sleep
What are the Primary Headaches?
Tension-type headache
Migraine
Cluster
Associated with exercise
Patterns for Primary Headaches
Positive family history Stereotypic headache pattern over time Menstrual association Mutation (marker) on chromosome 19 Prodromes and/or auras Resolution with sleep Changing locations of headache Otherwise healthy individual
Most common type of primary headache? What class does it fall under? What is the etiology?
Tension headache. Extracranial. Muscle strain/stress.
IHS Criteria for Tension HA?
*At least 10 previous headache episodes lasting from 30 minutes to 7 days characterized by at least 2 of the following pain characteristics:
-Pressing, tightening, nonpulsatile quality
-Mild or moderate intensity (may inhibit but does not prohibit activity)
-Bilateral location
-Not aggravated by routine physical activity
And one of the following:
No nausea or vomiting
Photophobia or phonophobia may be present, but not both
IHS Criteria for Migraine Without Aura
Headache lasting 4-72 hours characterized by at least two of the following four characteristics: Unilateral pain Throbbing, pulsatile quality Moderate to severe in intensity Aggravation by routine activity And at least one of the following: Nausea and/or vomiting Photophobia and/or phonophobia Diagnosis should include at least 5 previous attacks and no evidence of underlying disease
Etiology of Migraine Without Aura
No longer thought of as a vascular problem
Neurovascular Theory:
Hyperexcitable state of the cerebral cortex with subsequent vasuclar epiphenomenon of dilation and constriction: Cortical spreading depression
IHS Criteria for Migraine With Aura
Headache follows attacks, with at least 3 of the following:
1 or more reversible visual symptoms (either positive or negative features) and/or sensory or speech problems
At least 1 aura symptom develops gradually over more than 4 minutes or 2 or more symptoms occur in succession
No aura symptom lasts more than 60 minutes
Headache follows aura with a free interval of less than 60 minutes (may also begin before or simultaneously with aura)
What serious life-threatening event is more common with Migraine with Aura?
Stroke x4
When are Triptans (for pain) contraindicated? (5-HT1B serotonin receptors)
Contraindicated in coronary vascular disease or uncontrolled HTN**
Cluster HA etiology?
Not clearly understood- Trigeminal autonomic cephalgias
ISH Criteria for Cluster HA- rarest
**Autonomic characteristics are telling
Individual episode of unilateral headache lasting 15 minutes to 1 hour, occurring up to several times a day for periods of 3 to 16 weeks
May resolve for months to years and then occur again
May have seasonal variations
Pain originates behind or around the eyes and may radiate into temple, jaw, nose, teeth or chin; drooping eyelid, tearing eye; facial flushing, nasal congestion
Usually no nausea or vomiting
Restlessness and agitation
Cluster HA Risk Factors?
Alcohol use Heavy smoking Cold wind exposure Heat blown into the face Seasonal variation
Tx for Cluster HA?
Acute: High-flow oxygen – 10 L/min for 10 min *Oral medications usually ineffective Injectable triptan DHE intranasal Lidocaine intranasal Non-Acute: Ace inhibitors Corticosteroids – high dose Anti-seizure medication