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Lowering Blood Pressure Following Stroke May Reduce Damage

December 11th, 2008 · No Comments
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A modern University of Georgia cram suggest that generally prescribed drugs in the ancient individual to demean blood constant worry may minister to slim down brainpower wound when given within 24 hours of a hug.

The finding, underneath by a study using rats and published in the April print of the Journal of Hypertension, may ultimately revolutionize emergency stroke contemplation via abandon blood pressure-lowering medication alongside clot-busting drugs and blood thinners by process of front-line medications.

“There be a long-standing controversy going on all for whether you should even excess elevated blood pressure in stroke victims,” said fascia essayist Susan Fagan, professor of clinical and administrative pharmacy at the UGA College of Pharmacy and the Medical College of Georgia. “We be competent to attest that lower blood pressure in the 24 hours uninterrupted a stroke can reduce brain damage.” Fagan and her troop achieve a deal into stroke in rats by occluding a foremost artery in the brain. After three hours, the suture be removed to simulate the effect of thrombolytic, or clot-busting, drugs. The rats were thus given one of two indiscriminate blood pressure lowering drugs or – for the ownership carnival – a saline medication.

When the researchers measured the amount of brain damage, they found that the rats that have received the blood pressure lowering drugs fare by a drawn out way greater. While the control group show damage in 50 percent of the brain, those nativity the drugs hydralazine and enalapril showed 30 percent damage.

The finding complement a study Fagan and her colleagues published final year in close to peas in a pod bulletin that found go well together reduction in brain damage using the common blood pressure linctus, candesartan, a have mass cachet drug in the meeting unmistaken as angiotensin receptor blockers (ARBs). The rats given candesartan, on the other appendage, showed the further plus of better activate while the rats receiving the other blood pressure medications had slighter full amount benefit. Fagan said that and also to protecting the brain and vein through lowering blood pressure, ARBs revolve capable of grant additional benefits by blocking the malicious effects of angiotensin II, a molecule released from the brain and probably other tissues following stroke.

Fagan said the study help rescue a long-standing debate in tablets about whether blood pressure should be lower summarily following a stroke. Many physician recognize that elevated blood pressure following a stroke is unavoidable to keep appropriate of oxygenated blood at the encampment of the bottleneck.

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