Ischemic Stroke is the most common type of stroke which can be present in pre-determined syndromes due to the effect of decreased blood flow to particular areas of the brain. Etiology of ischemic stroke is due to either a thrombotic or embolic event. In the Thrombotic Stroke a blood clot is formed inside the artery in the brain which blocks the blood flow. Usually seen in older persons. Embolic Stroke is caused by blood clot or plaque debris that develops elsewhere in the body and then travels to one of the blood vessels in the brain through the bloodstream.