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 ...

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 ...

Electrocardiogram tests – which measure the heart's electrical activity – could someday be paired with an artificial ...

A normal heart rate at rest is between 60 and 100 ... impulses and provides information about the heart rate and rhythm. On the ECG, atrial activation appears as a small bump known as the P ...

The ECG findings presented as normal in athletes were established by an international ... narrow unless the baseline QRS has a bundle branch block. Sinus rhythm resumes with increased heart rates ...

After about 5 hours, my heart rhythm went back to normal, and they let me go home. I'm to see the cardiologist next week and have an EKG. My question is whether the abdominal cramps could have ...

This ECG 'variant ... often called 'normal variants', that can occur in perfectly normal individuals. SCD is most often due to an extremely rapid and uncoordinated cardiac rhythm disorder called ...