What Causes Cryptogenic Stroke
Text Version of What Causes Cryptogenic Stroke Infographic
The Known and Unknown of Stroke
Nearly 800,000 strokes occur in the US each year. Stroke is an interruption of blood flow to the brain. Without oxygen-rich blood, brain cells die.
Types of Stroke
- Hemorrhagic – Occurs when a weakened blood vessel, like an aneurism, ruptures and spills blood into the brain.
- Ischemic – Occurs when a clot or mass blocks a blood vessel, cutting off blood flow to a part of the brain.
About 1/3 of ischemic strokes are classified as cryptogenic, meaning the cause is unknown. Finding the cause of a stroke is important because it helps reduce the risk of another stroke.
Possible Hidden Causes
- Irregular heartbeat [Atrial fibrillation] – AFib patients are at a 5 times greater risk for stroke.
- Heart structure problem [such as Patent Foreman Ovale]
- Blood clotting disorder [Thrombophilia] Hardening of the arteries [Large Artery Atherosclerosis]
Find the Facts at StsrokeAssociation.org/CS
American Heart Association/American Stroke Association Life is Why
Medtronic supports the American Heart Association/American Stroke Association Cryptogenic Stroke Initiative