With symptoms such as a racing, fluttering heartbeat and shortness of breath, atrial fibrillation (AFib) is more than uncomfortable — it makes stroke five times more likely and, over time, can weaken ...

Whether due to stress or an intense cardio workout, most of us have felt our heart racing from time to time. A rise in your heart rate can be perfectly normal given outside circumstances. However, ...

What Is Cardamyst, and Why Does It Matter? Cardamyst (etripamil) is a new nasal spray for treating sudden episodes of fast heartbeats, known as paroxysmal supraventricular tachycardia (PSVT), and ...

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 ...

Intranasal etripamil is the first self-administered, on-demand therapy for PSVT, allowing treatment outside healthcare settings. The RAPID trial showed 64% of etripamil-treated patients returned to ...

A slow heartbeat may not always raise immediate concern, but in many people, it signals an underlying heart rhythm disorder known as bradycardia. Defined as a resting heart rate of fewer than 60 beats ...