title: Value of leads V7-V9 in diagnosing posterior wall acute myocardial infarction and other causes of tall R waves in V1-V2.
abstract: Left posterolateral chest leads (V7, V8, V9) helped distinguish the multiple causes of tall R waves in V1 and/or V2, diagnosed true posterior myocardial infarction when standard leads did not, and identified the presence or absence of posterior injury in patients with inferior infarction.
authors.affiliation: St. Francis Hospital, Evanston, and Loyola University, Chicago, Illinois, USA.
authors.forename: R E
authors.initials: RE
authors.lastname: Casas
authors.forename: H J
authors.initials: HJ
authors.lastname: Marriott
authors.forename: D L
authors.initials: DL
authors.lastname: Glancy
mesh_terms: D003937:Diagnosis, Differential; D004562:Electrocardiography; D006801:Humans; D009203:Myocardial Infarction / Q000175:diagnosis* / Q000503:physiopathology