Paroxysmal atrial fibrillation: Self-limiting and sinus rhythm restores spontaneously. Lasts for less than 7 days. Does not require intervention to convert to a normal rhythm (electrical or ...

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 ...