DEAR MAYO CLINIC: I've been diagnosed with atrial fibrillation. I've read that it puts me at greater risk of stroke. Can you tell me more about this? ANSWER: You may not have known you had atrial ...

Atrial fibrillation, or AFib, is a type of irregular heart rhythm that causes your heart to pump less effectively than it should. You’ll get treatment to try to bring back a normal rhythm. Another ...

I recently diagnosed atrial fibrillation in a 24-year-old man with new-onset chest pain, irregular palpitations, and heart rate >170 beats per minute. The patient has no history of drug or tobacco ...

Medtronic has warned that one of the models in its Vanta range of implantable neurostimulators for pain relief may stop working if the patient is given cardioversion therapy to restore a normal heart ...

Atrial fibrillation is a common type of heart rhythm disorder where the heart doesn't beat efficiently. This makes the heart unable to pump enough blood out to the body with each heartbeat. It's ...