Notes
Slide Show
Outline
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World prevalence of migraine
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Prevalence of migraine by
sex and age
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Diagnosis of migraine
  • Diagnosis  depends on patient history
  • No specific tests or clinical markers for migraine
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Migraine Criteria
  • ³5 attacks lasting 4–72 h
  • ³2 of the following 4
    • Unilateral
    • Pulsating
    • Moderate or severe intensity
    • Aggravation by routine physical activity
  • ³1 of the following
    • Nausea and/or vomiting
    • Photophobia and phonophobia
  • Not attributable to another disorder
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What is migraine?
  • Migraine without aura (MO)
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Clinical features of migraine
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IMPORTANT DIAGNOSTIC CONSIDERATIONS
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Premonitory, aura and postdromal symptoms
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MIGRAINE WITH AURA
(FORMERLY “CLASSIC” MIGRAINE)
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MIGRAINE AURA
“Cheiro-oral”
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Fortification Spectrum
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DIAGNOSIS AND TESTING
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Alice in Wonderland
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REASONS FOR MISDIAGNOSIS OF MIGRAINE AS TTH OR SINUS
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Differential diagnosis of
primary headaches
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WORRISOME HEADACHE RED FLAGS
“SNOOP”
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Headache ‘red flags’
  • First or worst headache
  • Significant change from previous headache pattern
    • no longer fulfils IHS criteria
  • New onset headache in middle age or later
  • New or progressive headache that lasts for days
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EVALUATION STRATEGIES
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SUDDEN ONSET HEADACHE
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LUMBAR PUNCTURE
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SENSITIVITY OF CT SCAN IN SUBARACHNOID HEMORRHAGE (SAH)
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DIAGNOSIS TESTING
CT AND MRI
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DIAGNOSTIC TESTING ELECTROENCEPHALOGRAPHY
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MR AND CONVENTIONAL ANGIOGRAPHY
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INDICATIONS FOR GADOLINIUM ENHANCED MRI
  • Cerebrovascular
    • Arterial dissection (MRA)
    • Cerebral venous sinus thrombosis (MRV)
    • CNS vasculitis
  • Tumors
    • Posterior fossa
    • Pituitary
    • Leptomeninges
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STRATEGIES FOR MIGRAINE TREATMENT
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ACUTE MIGRAINE TREATMENT
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PRINCIPLES OF MIGRAINE MANAGEMENT
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NONPHARMACOLOGIC TREATMENTS
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MIGRAINE TRIGGERS
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ACUTE MIGRAINE MEDICATIONS
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ACUTE THERAPIES FOR MIGRAINE
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ACUTE THERAPIES FOR MIGRAINE
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CONSIDERATIONS IN INITIAL ACUTE THERAPY
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Trigeminovascular model of migraine
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Mechanisms for treatment
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TRIPTANS
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TRIPTANS:
TREATMENT CHOICES
  • Are there differences between the triptans?


  • If one triptan fails, will another triptan work?
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ROUTES OF ADMINISTRATION
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FORMULATION: ONSET
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Sumatriptan
  • Sumatriptan (Glaxo Wellcome)
    • 5-HT1B/1D agonist
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Headache responses continue to improve over time after eletriptan dosing
Time course for headache response
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ACUTE TREATMENT PRINCIPLES
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STEP VS. STRATIFIED CARE
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BASIS OF STRATIFICATION
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MIDAS Score
Days in Last 3 months
  • You’ve missed  work or school due to your headaches?
  • Your productivity at work or school reduced by half or more due to your headaches? (Please do not include days you counted in question 1 where you missed work or school)
  • You not do household work because of your headaches?
  • Your productivity in household work reduced by half or more because of your headaches? (Do not include days you counted in question 3 where you did not do household work)
  • You missed  family, social or leisure activities because of your headaches?
  • A. Had a Headache? If a headache lasted more than one day count each day.


  • B. On a scale of 1-10 on average how painful were those headaches? (Where 0 is no pain, 10 is as bas as pain could be??


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GradeDefinitionScore
  • I   Minimal or infrequent disability  0-5
  • II  Mild or infrequent disability  6-10
  • III Moderate disability  11-20
  • IV Severe disability  21+
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DISABILITY IN STRATEGIES OF CARE (DISC) STUDY
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TREAT MIGRAINE WHEN PAIN IS MILD
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TRIPTANS IN THE SPECTRUM OF MIGRAINE
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RECURRENCE & REBOUND
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APPROACH TO DIFFICULT HEADACHE PROBLEMS
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SUMMARY OF ACUTE MIGRAINE MANAGEMENT
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Chronic Daily HA
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Tension (v. migraine)
  • ³10 attacks lasting 30 min–7 days
  • ³2 of the following 4
    • Bilateral
    • Not pulsating
    • Mild or moderate intensity
    • Not aggravated by routine physical activity
  • No nausea or vomiting
  • One or neither photophobia or phonophobia
  • Not attributable to another disorder


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MIGRAINE
ADDITIONAL FEATURES
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UNDIAGNOSED MIGRAINE SUFFERERS OFTEN RECEIVE OTHER MEDICAL DIAGNOSES
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AURA: MIMICS AND SECONDARY CAUSES
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LATE-LIFE MIGRAINE ACCOMPANIMENTS VS TIA
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MIGRAINE AND STROKE
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CADASIL
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GUIDELINES: WHEN TO USE PREVENTIVE MANAGEMENT
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GOALS OF PREVENTIVE TREATMENT
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GENERAL PRINCIPLES OF PREVENTIVE TREATMENT
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PREVENTIVE MEDICATIONS:
DRUG CLASSES
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GENERAL PRINCIPLES OF PREVENTIVE TREATMENT
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Comorbidities
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COMORBID AND COEXISTENT CONDITIONS
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PREVENTIVE TREATMENT:
DRUG CHOICE
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PREVENTIVE TREATMENT:
USE OF ACUTE MEDICATION
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CAUTIONS IN ACUTE MEDICATION USE
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NONPHARMACOLOGIC TREATMENT:
POTENTIAL INDICATIONS
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SUMMARY OF PREVENTION
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