Dr. Hugh Calkins answers the question: 'What Is Atrial Fibrillation?' — -- Question: What is atrial fibrillation, how is this different from normal rhythm, and how dangerous is it? Answer :Atrial ...

AFib causes your heart to beat abnormally, which is a type of arrhythmia, but there are treatments that can help. Atrial fibrillation (AFib) is a problem with your heart's electrical activity. With ...

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 ...

EXETER, UK — Patients with supraventricular tachycardia (SVT) treated with a modified Valsalva maneuver are nearly four times more likely to return to normal sinus rhythm than individuals treated with ...

Atrial fibrillation (AF) is a heart rhythm disorder that makes the heartbeat fast and irregularly. The most common symptoms are palpitations, shortness of breath, lightheadedness, and fatigue, which ...

An artificial intelligence (AI) model may identify patients with intermittent atrial fibrillation (AF), even when performed during normal sinus rhythm, in a little as 10 seconds, a new study suggests.

A normal heart rate is between 60 to 100 beats per minute (BPM), but it can vary by person. A heart rate slower than 60 BPM can be a sign of anything from a high fitness level to hypothyroidism. A ...

Sinus rhythm (a.k.a. normal sinus rhythm) refers to the normal heart beat originating from the sinoatrial node. This is manifested as an upright P wave in lead II of the ECG. Sinus bradycardia occurs ...

A new kind of electric shock has proved effective in restoring a normal heartbeat in animals, and, if successful in humans, it could represent a gentler alternative to traditional defibrillation. It's ...

Bigeminy is an irregular heart rhythm where every normal beat is followed by an abnormal one. You should see a doctor if bigeminy causes dizziness, chest pain, or trouble breathing. Bigeminy can be ...