Multifocal atrial dysrhythmia.
D000368:Aged; D001145:Arrhythmias, Cardiac / Q000145:classification / Q000503:physiopathology*; D004562:Electrocardiography; D006325:Heart Atria; D006801:Humans; D008171:Lung Diseases / Q000503:physiopathology*; D008297:Male; D013610:Tachycardia / Q000145:classification