title: Intra-aortic balloon pump prevents transtracheal Doppler endotracheal tube measurements of cardiac output.
authors.forename: J M
authors.initials: JM
authors.lastname: Gayes
mesh_terms: D001011:Aorta / Q000502:physiology; D001794:Blood Pressure; D002302:Cardiac Output; D004452:Echocardiography / Q000295:instrumentation*; D006801:Humans; D007423:Intra-Aortic Balloon Pumping / Q000295:instrumentation* / Q000379:methods; D012039:Regional Blood Flow; D014132:Trachea