New Trial Studies Link Between Stroke and Atrial Fibrillation
Northwestern Medicine physician researchers from cardiology and neurology have teamed up to monitor people diagnosed with a cryptogenic strokes for intermittent atrial fibrillation as part of a study called...
"Cryptogenic stroke, or stroke of undetermined cause, accounts for 25 percent of all strokes. In many of these cases, physicians believe atrial fibrillation may occur without the patient's knowledge, causing the stroke. To better understand the connection between atrial fibrillation and stroke, Northwestern Medicine physician researchers from cardiology and neurology have teamed up to monitor people diagnosed with a cryptogenic strokes for intermittent atrial fibrillation as part of a study called CRYSTAL AF (Study of Continuous Cardiac Monitoring to Assess Atrial Fibrillation after Cryptogenic Stroke).
During atrial fibrillation, the most common type of arrhythmia (abnormal heart beat), the heart's upper chambers, or atria, quiver rather than beat; this allows blood to stay in the chamber and potentially cause a clot. If the clot travels from the heart and reaches the brain, a stroke is imminent. "Patients with atrial fibrillation are at a greater risk for stroke than the general population," said Rod Passman (photo), MD, medical director for the Center for Atrial Fibrillation at the Bluhm Cardiovascular Institute of Northwestern Memorial Hospital and associate professor of cardiology at Northwestern University's Feinberg School of Medicine. "Fifteen percent of all strokes are in patients with atrial fibrillation." ... read full story