title: Dysrhythmias in apparently healthy elderly subjects.
abstract: Using 24-hour ambulatory electrocardiographic (ECG) monitoring, the incidence of cardiac dysrhythmias was investigated in 50 apparently healthy elderly subjects aged over 60 years. There was a high incidence of both ventricular and supraventricular ectopic beats, supraventricular tachycardia and sinus arrest. First- and second-degree block were also noted. The incidence of dysrhythmias bore no obvious relationship to age over 60, sex, blood presssure, cigarette smoking, caffeine and theophylline ingestion or resting 12-lead ECG abnormalities.
mesh_terms: D000368:Aged; D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male