The Prognostic Value of Reversed Ophthalmic Artery Flow Direction in Acute Stroke Patient with Ipsilateral Extra Cranial Carotid Artery Stenosis

Abstract

he burden of cerebrovascular diseases in developing countries is rising sharply. Stroke and other diseases of the circulatory system are the primary cause of mortality and morbidity in Egypt and worldwide. Cerebral ischemia is a result of acute arterial occlusion or severe narrowing resulting in impaired blood flow to the brain tissue. Collateral circulation is a dynamic system that helps in preserving cerebral perfusion along with pathophysiologic changes. This system has a huge role in cerebral homeostatic response to ischemia when the primary pathways fail to provide perfusion to critical parts of the brain.