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 ...

This is a type of narrow complex tachycardia, with a narrow QRS in the ECG. Ventricle pacemaker cells have a normal rate between 20 and 40 bpm. A faster rhythm is known as accelerated ...

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 ...

The ECG findings presented as normal in athletes were established by an international consensus panel of ... size secondary to regular training.6,11–14 A junctional or nodal rhythm occurs when the QRS ...

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

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.