A brain injury that occurs when blood flow to your brain is interrupted by a blocked or ruptured artery. If brain tissue is deprived of oxygen and nutrients, it can lead to cell death within minutes to hours. Occur as a result of an interruption in blood flow to an area of the brain, often the result of a blood clot, which can quickly lead to cell death. Enlarge Image Hemorrhagic strokes. Occur when a blood vessel or aneurysm in your brain leaks or ruptures.
Blood then enters and damages surrounding brain tissue.
A temporary interruption of blood flow to part of the brain. In contrast to an ischemic stroke, in which the symptoms last longer than a day, the symptoms from a TIA resolve in less than 24 hours. Use of this site signifies your agreement to the terms of use . A single copy of these materials may be reprinted for noncommercial personal use only. Walgreen Co. All rights reserved.