Bradycardia, or a heart rate that is too slow, can be a serious condition, especially if the heart is not pumping enough oxygen-rich blood throughout the body. Here's what medical experts consider to ...

Sinus bradycardia occurs on an ECG when there is a normal upright P wave in lead II (sinus P wave) preceding every QRS complex with a ventricular rate of less than 60 beats per minute. Frequently, ...

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.

The American College of Cardiology (ACC), the American Heart Association (AHA), and the Heart Rhythm Society (HRS) have released a clinical practice guideline for the evaluation and treatment of ...

The term bradycardia refers to an abnormally slow heart rate, of under 60 beats per minute (bpm). The heart has a complex system of nerves that conduct the electrical impulses fired by the sino-atrial ...

Bradycardia can be a normal physiological sign in fit young adults. However, in acute illness it may indicate life threatening heart block or precede asystole. This article outlines the assessment and ...

The correct diagnosis is sinus bradycardia with a sinus pause due to sinus node arrest (Figure 2). Figure 2. Courtesy of Philip J. Podrid, MD. The rhythm is regular except for one long RR interval or ...