Harvard Heart Letter
After a stroke with no clear cause, a heart repair may be in order
Closing a gap inside the heart may help prevent a rare type of stroke from recurring. Most strokes occur when a clot blocks blood flow to part of the brain. Often, doctors can tell what caused the clot to form. But about a quarter of the time — especially in people younger than 60 — there is no obvious reason. These types of strokes are known as cryptogenic (meaning “of hidden origin”).