Atrial tachycardia and other ectopic atrial rhythms occur when a site outside of the sinus node, but within the atria, creates action potentials faster than the sinus node. This ectopic focus ...

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 ...

Irregular heart rhythms, which is a surrogate of cardiac ... These may include electrocardiogram (ECG or EKG), Holter monitor (a portable device for continuous heart rhythm monitoring), event ...