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
What is Erenumab?
CGRP receptor antagonist
26
What is the MOA of erenumab
It's an IgG monoclonal antibody that binds and antagonizes CGRP receptors
27
Which type of headache occurs primarily in females? Which occurs primarily in males?
Females: Migraines Cluster headaches: Males
28
What is the first line agent for preventing cluster headaches?
Verapamil
29
Which medications can cause MOH?
Almost all the medicines used to abort headaches (EXCEPT dihydroergotamine)