P waves and P loops in coronary sinus and left atrial rhythms.
D000818:Animals; D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D006328:Cardiac Catheterization; D003331:Coronary Vessels; D004285:Dogs; D004562:Electrocardiography; D006325:Heart Atria; D006344:Heart Septal Defects, Atrial / Q000503:physiopathology; D006801:Humans; D008722:Methods; D010138:Pacemaker, Artificial