Vascular Theory
Intracranial vasoconstriction in the outer cortex plays a role in the
occurrence of migraine with aura. This opinion is reinforced by the
presence of headache accompanied with the same heart rate. Blood vessels
constrict primarily located in the brain due to activation of
peripheral nociceptive nerve locals. This theory was initiated above
observation that the extracranial veins that will undergo vasodilation
palpable heartbeat. This vasodilation will stimulate people to
experience headaches. In such conditions, vasoconstrictor drugs, such as
ergotamine will reduce headaches, while vasodilators such as
nitroglycerin will worsen headaches.
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