title: Chaotic atrial rhythms. Clinical and electrophysiological observations.
mesh_terms: D000083:Acetanilides / Q000494:pharmacology; D000368:Aged; D000605:Amino Alcohols / Q000494:pharmacology; D001145:Arrhythmias, Cardiac / Q000188:drug therapy / Q000209:etiology; D001285:Atropine / Q000494:pharmacology; D004562:Electrocardiography; D005260:Female; D006321:Heart / Q000503:physiopathology; D006325:Heart Atria / Q000187:drug effects; D006331:Heart Diseases / Q000175:diagnosis* / Q000188:drug therapy / Q000503:physiopathology; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008012:Lidocaine / Q000627:therapeutic use; D008297:Male; D009921:Metaproterenol / Q000494:pharmacology; D008875:Middle Aged; D011437:Propylamines / Q000494:pharmacology
chemical_list: D000083:Acetanilides; D000605:Amino Alcohols; D011437:Propylamines; D009921:Metaproterenol; D001285:Atropine; D008012:Lidocaine