The rhythm is either sinus rhythm or not sinus rhythm. Sinus rhythm refers to the origination of the electrical activity coming from the sinus node — also known as the sinoatrial node, or SA node.

Over 300,000 people die each year in the US due to sudden cardiac death. In many cases, sudden cardiac death is caused by abnormally rapid heart rhythms called tachycardias, which means the heart ...

A description of the electronics in an electrocardiograph and what signals they measure to produce the “leads” on an ECG strip chart or video display. An ECG detects and displays the electrical pulses ...

Scientists have discovered a previously unidentified potassium channel in cardiac cells that regulate the human heartbeat. This could be a significant step towards developing "biological pacemakers" ...

Japan-based study involving Osaka University finds valuable correlation between use of advanced airway management and ECG rhythms indicating need/non-need for defibrillation during out-of-hospital ...

Atrial Fibrillation (AFib) is one of the most common forms of irregular heart rhythm disorders (arrhythmias). It originates in the atria, the upper chambers of the heart, and causes the heart to beat ...

At Apple’s September keynote the company introduced the Series 4 Apple Watch. Among the features announced was a preview of the ability to generate an electrocardiogram or ECG within thirty seconds by ...