Koch triangle

Koch tri·an·gle

(kōk trī'ang-gĕl)
A triangular area of the wall of the right atrium of the heart, which marks the approximate situation of the atrioventricular node.

Koch,

Walter, German surgeon, 1880–.
Koch node - the mass of specialized cardiac muscle fibers that normally acts as the "pacemaker" of the cardiac conduction system. Synonym(s): sinuatrial node
Koch triangle - a triangular area of the wall of the right atrium of the heart that marks the situation of the atrioventricular node.
References in periodicals archive ?
ASD and Koch triangle are closely positioned anatomically, while AV node is in the endocardium in front of Koch triangle, thus the AV node might be damaged during the closure procedure or be compromised mechanically by the occluder device.