title: Hemodynamic response to balloon occlusion of the left main coronary artery during balloon angioplasty supported by cardiopulmonary bypass: a case report.
abstract: Four coronary lesions, including a severe left main stenosis, were successfully dilated in a patient with poor left ventricular function; the procedure was supported by percutaneous cardiopulmonary bypass. During left main occlusion there was a loss of phasic systemic arterial pressure, while pulmonary arterial pressure was maintained. The ischemic myocardial depression occurring during left main occlusion was not prevented by percutaneous cardiopulmonary bypass, indicating inadequate myocardial protection.
authors.affiliation: Division of Cardiology, St Michael's Hospital, Toronto, Ontario.
authors.forename: J R
authors.initials: JR
authors.lastname: Azpiri
authors.forename: S V
authors.initials: SV
authors.lastname: Lichtenstein
authors.forename: K R
authors.initials: KR
authors.lastname: Watson
authors.forename: R J
authors.initials: RJ
authors.lastname: Chisholm
mesh_terms: D000368:Aged; D015906:Angioplasty, Balloon, Coronary; D002315:Cardiopulmonary Bypass; D004562:Electrocardiography; D006439:Hemodynamics; D006801:Humans; D008297:Male