4 - Headaches Flashcards

1
Q

When do migraines usually develop?

A

In the morning after awakening

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2
Q

What percentage of migraine patients have auras?

A

Only 30%

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3
Q

Migraines always involve _____ and _____

A

Vasodilation and Inflammation

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4
Q

The role of ______ compound is to suppress migraines

A

Serotonin (5HT)

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5
Q

The role of _____ compound is to promote migraines

A

Calcitonin Gene-related Peptide (CGRP)

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6
Q

What is MOH?

A

Medication Overuse Headaches

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7
Q

How often should abortive medications be taken?

A

1-2 times per week MAX

Otherwise will cause MOH or rebound headache

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8
Q

Which NSAIDs work best for migraines?

A

Aspirins

Tylenol should only be used in combination with other things (Excedrin)

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9
Q

Aspirin works best when combined with ______

A

Reglan

When given together its as effective as sumatriptan

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10
Q

What opioid analgesic is used for migraines?

A

Butorphanol Nasal Spray

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11
Q

What are triptans?

A

Serotonin receptor agonists

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12
Q

What is the MOA of triptans?

A

Bind to Serotonin 1B/1D receptors, suppressing the release of CGRP, and thereby reducing inflammation and vasodilation

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13
Q

Triptans exclusively activate _______ receptors

A

Serotonin1B/1D

They have NO AFFINITY for other serotonin receptors, and they don’t bind to any adrenergic/dopaminergic/cholinergic/histaminergic receptors

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14
Q

Is sumatriptan abortive or prophylactic?

A

Abortive

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15
Q

About 50% of patients who take sumatriptan experience:

A

unpleasant chest symptoms

These are NOT ischemic in nature

Heavy arms or chest pressure

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16
Q

In which patients should sumatriptan not be used?

A

CAD and Pregnancy (teratogenic)

17
Q

Which drugs should not be given with sumatriptan?

A

Other triptans or ergots

MAOIs

SSRIs/SNRIs (may cause serotonin syndrome)

18
Q

What is the MOA of Ergot Alkaloids?

A

Alters transmission at serotonergic, dopaminergic, and Alpha adrenergic junctions

19
Q

Withdrawal from ergotamine is characterized by:

A

headache, N/V, restlessness… basically, looks just like a migraine attack

20
Q

What is the first line drug for migraine prevention?

A

Beta blockers, particularly propranolol and metoprolol

21
Q

Which beta blockers are NOT effective in preventing migraines?

A

The ones that possess sympathomimetic activity:

Acebutolol, Pinolol

22
Q

Which antiepileptic drugs are used to prevent migraines?

A

Divalproex and Topiramate

23
Q

Divalproex carries a black box warning for:

A

fatal pancreatitis and hepatitis

Neural tube defects in the fetus

24
Q

There are five classes of drugs used to prevent migraines:

A
  1. Beta Blockers
  2. Antiepileptics
  3. Tricyclics
  4. Estrogens
  5. CGRP Antagonists
25
Q

What is Erenumab?

A

CGRP receptor antagonist

26
Q

What is the MOA of erenumab

A

It’s an IgG monoclonal antibody that binds and antagonizes CGRP receptors

27
Q

Which type of headache occurs primarily in females?

Which occurs primarily in males?

A

Females: Migraines

Cluster headaches: Males

28
Q

What is the first line agent for preventing cluster headaches?

A

Verapamil

29
Q

Which medications can cause MOH?

A

Almost all the medicines used to abort headaches (EXCEPT dihydroergotamine)