Chaotic atrial mechanism.
D000368:Aged; D001145:Arrhythmias, Cardiac / Q000175:diagnosis* / Q000209:etiology; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria; D006339:Heart Rate; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000150:complications