A new, anatomically sound nomenclature for the atrioventricular junctions has been proposed by a consensus of experts to improve the description of atrial and ventricular mapping.
Current nomenclature for atrioventricular junctions derives from a surgically distorted view, placing the valvar rings and the triangle of Koch in a single plane with antero-posterior and right-left lateral coordinates. Within this convention, the aorta is considered to occupy an anterior position, while the mouth of the coronary sinus is shown as being posterior. While this nomenclature has served its purpose for the description and treatment of arrhythmias dependent on accessory pathways and atrioventricular nodal re-entry, it is less than satisfactory for the description of atrial and ventricular mapping. To correct these deficiencies, a consensus document has been prepared by experts from the Working Group of Arrhythmias of the European Society of Cardiology, and the North American Society of Pacing and Electrophysiology. It proposes a new, anatomically sound, nomenclature that will be applicable to all chambers of the heart. In this report, we discuss its value as regards the description of the atrioventricular junctions, establishing the principles of this new nomenclature.
Cosío et al. (Sun,) conducted a review in Arrhythmias. New anatomical nomenclature was evaluated. A new, anatomically sound nomenclature for the atrioventricular junctions has been proposed by a consensus of experts to improve the description of atrial and ventricular mapping.