A sudden vasoconstriction of a coronary artery depriving the myocardium of blood flow and oxygen. This may clinically manifest as chest pain referred to as variant angina or printzmetal's angina. May be precipitated by emotional stress, medications, street drugs (cocaine) or on exposure to cold.
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... may provoke chest pain in patients with Prinzmetal’s variant angina MPA substudy of WHI, patients 12 years of age and older sans prescription selegiline ...
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