title: PR-segment deviation as the initial electrocardiographic response in acute pericarditis.
abstract: PR-segment deviations precede classic ST(J) deviations in acute pericarditis because the superficial myocarditis producing electrocardiographic changes is more encompassing in the thin atrial muscle. In patients with appropriate syndromes, PR-segment deviations should be recognized early after onset, as ST changes may be absent.
authors.affiliation: Cardiology Division, St. Vincent Hospital, University of Massachusetts Medical School, Worcester 01604, USA.
authors.forename: R
authors.initials: R
authors.lastname: Baljepally
authors.forename: D H
authors.initials: DH
authors.lastname: Spodick
mesh_terms: D000208:Acute Disease; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D010493:Pericarditis / Q000175:diagnosis* / Q000503:physiopathology*; D011237:Predictive Value of Tests