title: QRS changes during acute ischemia induced by balloon occlusion of the LAD artery.
authors.affiliation: Duke University Medical Center, Department of Medicine, Durham, NC 27710.
authors.forename: G S
authors.initials: GS
authors.lastname: Wagner
authors.forename: R H
authors.initials: RH
authors.lastname: Selvester
authors.forename: N B
authors.initials: NB
authors.lastname: Wagner
authors.forename: M W
authors.initials: MW
authors.lastname: Krucoff
mesh_terms: D000800:Angioplasty, Balloon; D003327:Coronary Disease / Q000209:etiology / Q000503:physiopathology / Q000628:therapy*; D004562:Electrocardiography; D006801:Humans; D007432:Intraoperative Period