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A transient ischaemic attack (TIA) or "mini stroke" is caused by a temporary disruption in the blood supply to part of the brain. Transient ischemic attacks usually last a few minutes. Most signs and symptoms disappear within an hour. The signs and symptoms of TIA resemble those found early in a stroke and may include sudden onset of: • Weakness, numbness or paralysis in your face, arm or leg, typically on one side of your body Plaques can decrease the blood flow through an artery or lead to the development of a clot. A blood clot moving to an artery that supplies your brain from another part of your body, most commonly from your heart, also may cause a TIA. Anticoagulants.
These drugs include heparin and warfarin (Coumadin, Jantoven). They affect clotting-system proteins instead of platelet function. Heparin is used for a short time and warfarin over a longer term. These drugs require careful monitoring. If atrial fibrillation is present, your doctor may prescribe another type of anticoagulant, dabigatran (Pradaxa). NINDS is the leading supporter of research on stroke and TIA in the U.S. and sponsors studies ranging from clinical trials to investigations of basic biological mechanisms as well as studies with animals.