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 ...

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 ...

If you’re waking up tired even after seven or eight hours of sleep, your heart rate may be falling too far during the night.

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 ...

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 ...

Millions of people live with atrial fibrillation, a racing, uneven heartbeat that can leave you exhausted and scared. Yet it ...

If your heart suddenly shoots up to 150–170 bpm during exercise or even at rest, doctors say it could be supraventricular ...

Bradycardia is a condition characterized by a slower than normal heart rate. While a normal adult heart beats between 60 and 100 times per minute, bradycardia is defined when heart rate falls below 60 ...