title: An electrocardiographic survey of the aged.
abstract: In a short-term study, 38% of a group of hospital and clinic patientsat least 75 years of age were found to have normal resting electrocardiograms. Other surprising findings were a higher incidence of atrial fibrillation than of atrial premature contractions, a relatively low incidence of acute or residual myocardial infarction, and a very low incidence of digitalis intoxication among the patients treated with this drug.
mesh_terms: D000368:Aged; D001145:Arrhythmias, Cardiac / Q000453:epidemiology; D002037:Bundle-Branch Block / Q000453:epidemiology; D006332:Cardiomegaly / Q000453:epidemiology; D003331:Coronary Vessels; D004071:Digitalis Glycosides / Q000009:adverse effects; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria; D006327:Heart Block / Q000139:chemically induced / Q000453:epidemiology; D006352:Heart Ventricles; D006801:Humans; D006973:Hypertension / Q000453:epidemiology; D007511:Ischemia / Q000453:epidemiology; D008297:Male; D009203:Myocardial Infarction / Q000453:epidemiology; D011656:Pulmonary Emphysema / Q000453:epidemiology; D014922:Wisconsin
chemical_list: D004071:Digitalis Glycosides