Retrograde activation of the left atrium. Evidence by simultaneous indirect recording of left and right atrial contractions.
D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D003327:Coronary Disease / Q000503:physiopathology*; D004562:Electrocardiography; D005260:Female; D006321:Heart / Q000502:physiology; D006325:Heart Atria / Q000503:physiopathology; D006801:Humans; D008875:Middle Aged; D010701:Phonocardiography