often involving the atria or AV node. Entrainment: A technique used in electrophysiology to assess the mechanism of a tachycardia by pacing the heart and observing the response. Koch's Triangle ...

The atrioventricular node (AVN) has mystified generations of investigators over the last century and continues today to be at the epicenter of debates among anatomists, experimentalists ...

Atrioventricular nodal reentrant tachycardia ... use of voltage mapping to identify a "low-voltage bridge" within Koch's triangle, which is a key anatomical area involved in the conduction ...