BC81.8
category
Atrioventricular nodal reentry tachycardia
Definition
Atrioventricular nodal reentry tachycardia involves reciprocation between two functionally and anatomically distinct pathways. In most cases, the fast pathway appears to be located near the apex of Koch’s triangle. The slow pathway extends inferoposterior to the compact AV-node tissue and stretches along the septal margin of the tricuspid annulus at the level of, or slightly superior to, the coronary sinus (the righward inferior extension of the AV node). The slow pathway may be formed from the leftward inferior extension of the AV node with the earliest retrograde activation at the roof of the proximal coronary sinus (1-3 cm from the ostium).
Also indexed as
AVNRT - [atrioventricular nodal re-entrant tachycardia]Atrioventricular nodal reentry tachycardiaAtrioventricular nodal reentry tachycardia, atypicalAtrioventricular nodal reentry tachycardia, atypical Fast-SlowAtrioventricular nodal reentry tachycardia, atypical Slow-SlowAtrioventricular nodal reentry tachycardia, typicalatrioventricular nodal reentry tachycardia, typical Slow-Fast