An idioventricular rhythm is very similar to ventricular tachycardia except the ventricular rate is less than 60 beats per minute. All other characteristics of VT apply; this includes the presence of ...

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 human heart has a natural pacemaker in the sinus node or the sinoatrial node, which is a group of cells that trigger electrical signals to stimulate the rhythmic contraction of the heart. In 1958, ...

Dr. Kathleen Maginot answers the question: 'Abnormal Heart Rhythms in Children?' — -- Question: What types of abnormal heart rhythms are more common in children? Answer :There are many ...

Narrow-complex tachyarrhythmias are rapid heart rhythms originating in the upper heart chambers, characterized by a QRS duration of less than 120 milliseconds on an EKG. These arrhythmias can be ...