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 ...

You probably were told your resting heart rate at your last checkup. Or maybe you get alerts throughout the day thanks to a fitness tracker or smart watch. But what does the number really mean? And ...

Heart arrhythmias are treated with various medications to restore normal heart rhythm, control heart rate, and prevent ...

Three common heart conditions—heart failure, atrial fibrillation, and coronary heart disease—are closely linked to cognitive ...

Atrial fibrillation, or A-fib, is an irregular heart rhythm that increases a person's risk of stroke ... oxygen ...

A junctional rhythm occurs when the electrical activation of the heart originates near or within the atrioventricular node, rather than from the sinoatrial node. Because the normal ventricular ...

There are four types of atrial fibrillation: namely occasional whose symptoms go away on their own after a few days, persistent which needs medication to restore normal heart rhythm, long-standing ...