Migraine

MIGRAINE Headache that lasts 4 to 72 h, is throbbing, is moderate to ascetical in intensity, is unilateral, becomes worse with exertion, and is associated with nausea, vomiting, or sensitivity to light, sound, or smell. Only terzetto or four of the to a higher place criteria must be insert for accurate diagnosis. About 24 million Americans have sick headaches. migraines may occur at any age besides unremarkably begin between ages 10 and 40, more often in women than in men. Headaches often partially or completely postpone after age 50. more(prenominal) than 50% of patients have a family history of migraine. Etiology and Pathophysiology The give birth is unknown, and the pathophysiology is not liberaly understood. Changes in headway and scalp arterial profligate flow occur, but whether vasodilation and vasoconstriction be a creator or an effect of the migraine is unclear. cortical spreading depression (fundamental changes in the brain cerebral lens cortex in which a jacket crown of hyperpolarization is followed by depolarization) may work over neurogenic inflammation, with vasodilation, activated WBCs and semipermeable capillaries. The inflammation leads to irritation of perivascular fifth cranial nerve nerve sensory fibers. A cascade of events follows, causing changes in blood flow and the severe headache. Intracranial vascular malformations atomic number 18 a r be cause of migraine-like headaches.

(See Figure: Phasic Progression of Migraine Headache.) The apparatus for migraines is not good defined, but several triggers atomic number 18 recognized. pass estrogen, a prodigious trigger, may explain why on that point ar three times as many women with migraines as men. usher of estrogens role as a trigger includes the next: During puberty, migraine becomes much more plethoric in females than in males; migraines are particularly difficult to date in the premenopausal conclusion; and oral contraceptives and estrogen switch therapy often slang migraine worse. Other triggers include insomnia, barometrical pressure change, and hunger. The experience of feed and migraine is...If you want to kick the bucket a full essay, fix it on our website: Ordercustompaper.com

If you want to get a full essay, wisit our page: write my paper