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 ...

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

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 ...

The ECG findings presented as normal in athletes were established by an international ... 6,11–14 A junctional or nodal rhythm occurs when the QRS rate is faster than the resting P wave or sinus rate ...

Emergence of atrial fibrillation, or a rapid or slow rate of such previously present rhythm disorder ... their condition in the presence of a normal ECG, or a stable abnormal tracing.

This ECG 'variant' is relatively ... individuals with structurally normal hearts. Genetically determined ion channelopathies are known to destabilize cardiac rhythm and cause SCD 6, but they ...