title: Beta-blocker therapy can mask ECG signs of pericarditis.
abstract: PR-segment changes of ECG can help differentiate acute myocardial infarct from pericarditis preventing the patient from an unnecessary coronarography. Here we present a case where beta-blocker therapy masked PR-segment changes.
authors.forename: János
authors.initials: J
authors.lastname: Tomcsányi
authors.forename: Balázs
authors.initials: B
authors.lastname: Sármán
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use*; D000328:Adult; D000789:Angina, Unstable / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy*; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006801:Humans; D008297:Male; D010493:Pericarditis / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology*
chemical_list: D000319:Adrenergic beta-Antagonists