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Primary & Secondary Headaches

1/25/2017

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Identifying atypical headaches, treatment of primary headaches, and how to approach complicated and atypical headaches. Adapted from Sigrid Nasser's Grand Rounds lecture, January 25th, 2015

Identifying Atypical Headaches

Migraines are seen frequently in the ER, and typically present similar to the POUND Mnemonic;
  • Pulsatile Quality
  • Over four to 72 hours
  • Unilateral location
  • Nausea or vomiting
  • Disabling intensity

Atypical headaches can be identified using the SNOOP mnemonic
  • Systemic: signs of concerns of autoimmune disorder, systemic illness, or cancer
  • Neurologic Deficits
  • Onset: Abrupt onset
  • Onset: new headaches after >40 years old
  • Progressive ​

Treatment of primary headaches

Patients presenting with typical headaches without red flags, and intact neurologic exams can be treated without imaging. Primarily, the goals of care are to block inflammation, hydrate, and utilization of dopamine or histamine antagonists or GABA agonists to treat headaches. 

Simple Analgesics: Tylenol and other NSAIDs can be used with antiepetics to treat mild-moderate primary headaches including migraines. 
​
Triptans: Although effective against placebos in studies, triptans have many limitations and contraindications, and is less frequently utilized in the emergency department. 

​Dopamine Antagonists: Evidence shows that DA such as metoclopramide or prochlorperazine is better than toradol for primary recurrent tension headaches and migraine.

Magnesium: Studies show magnesium is more effective than placebo or IVF alone. 

Anticholinergics: There is minimal data showing that benadryl helps with akasthisia or headaches, however patients tend to have shorter length of stay when given benadryl in addition to DAs

Steroids: Dexamethasone has previously been used as an acute headache treatment and recurrence prevention. A recently American Headache society review recommends for a single dose, however, currently, a 2015 Canadian Headache Society review recommends against steroids. 


Fluids: There is little data to suggest that IVF are effective, however anecdotally, IVF tend to help with headaches and should be offered unless there are any contraindications. 
trial_toradol_vs_metcloparmide.pdf
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management_of_headache.pdf
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canadian_headache.pdf
File Size: 423 kb
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Secondary Headaches

Common causes of secondary headaches include masses, bleeds, pseudotumor, hydrocephalus, hissection, carbon monoxide, and temporal arteritis. Concerns for secondary headaches includes any neurologic deficits, acute onset, new headaches in patients > 40 years old, or any signs of systemic illness or cancers. 

Secondary headaches require further evaluation including imaging and potentially lumbar puncture to evaluate opening pressure and fluid evaluation. Negative CT imaging does not fully rule out masses, as well as potential central venous thrombosis. CTV can come close to the sensitivity of MRV in diagnosing venous thrombosis. 
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  • Clinical
    • Discharge Macros
    • Procedure Macros
    • Exam Macros
    • Pediatric Macros
    • Antibiogram
    • Follow Up
    • 2023 MDM
    • Heart Pathway
    • Jeromy's Macros
  • Education
    • EM Education
    • Critical Care
    • FOAM
  • Orientation
    • Dept Orientation
    • Cerner
    • Dragon
  • Links
    • Clinical Links
    • StatMacros
    • ICU Bootcamp
  • Private
    • MCS
    • GWU Contacts & Map