When your electrical system is working normally, the two upper chambers of the heart (atria) contract and pump blood into the two lower chambers (ventricles) in a well-coordinated way. This results in ...

When right atrial enlargement occurs, it does not take longer for cardiac action potentials to travel through the atrial myocardium (similar to left atrial enlargement). However, the amplitude of the ...

Atrial flutter occurs when a “reentrant” circuit is present, causing a repeated loop of electrical activity to depolarize the atrium at a rate of about 250 to 350 beats per minute; the atrial rate in ...

AN NFL COACH IS PUTTING HEART HEALTH IN THE SPOTLIGHT. CHARGERS HEAD COACH JIM HARBAUGH WALKED OFF THE FIELD YESTERDAY IN THE MIDDLE OF THE GAME. HE LATER TOLD REPORTERS HE WAS HAVING AN ATRIAL ...

A new research study shows that artificial intelligence (AI) can detect the signs of an irregular heart rhythm -- atrial fibrillation (AF) -- in an electrocardiogram (EKG), even if the heart is in ...

The committee recommended further research to determine if using the lead‑I electrocardiogram (ECG) devices in primary care for people with signs or symptoms of atrial fibrillation, and an irregular ...