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 ...

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 ...

EDITOR’S NOTE: This is the final story in a weekly series focusing on cardiovascular health published in February, American Heart Month. WARREN — It was a Friday afternoon when Barbara Busko began to ...

Most of the time, you don't think about your heartbeat. It works quietly in the background of your day. But sometimes your heart's rhythm sends important cues from ...

A six-month exercise program helps maintain normal heart rhythm and reduces the severity of symptoms in patients with atrial fibrillation, according to new research. A six-month exercise programme ...

If you live with serious heart disease, the rhythm of your heart is something you think about a lot. After all, a shock from a defibrillator to combat arrhythmia can feel like a kick in the chest - a ...

Milestone Pharmaceuticals said Monday that an experimental nasal-spray medicine acted quickly to treat people experiencing episodes of a rapid but non-fatal heart rate — more than doubling the ...

In a normal heart rhythm, your heart beats in a steady, even way. The upper part of your heart (atria) squeezes and pushes blood to the lower part (ventricles), pumping blood and oxygen out to the ...

Doctors administered an electrical shock to Vice President Dick Cheney’s heart and restored it to a normal rhythm during a 2½ hour hospital visit Monday. The procedure was described as a low-risk, ...

Oura reports that heart rate variability (HRV) measures the variation in heartbeat timing, reflecting stress levels and ...