title: Cardiac syncopes in patients with sinus rhythm.
mesh_terms: D000368:Aged; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D013575:Syncope / Q000209:etiology*