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- W2003013002 abstract "A study was made of the hemodynamic effects of levarterenol and phentolamine in patients in whom low cardiac output developed following open-heart operation. After the patients were weaned from cardiopulmonary bypass, the inotropic agents were infused into an external or internal jugular vein through an IVAC pump. Levarterenol was administered first until systolic arterial pressure rose 20 to 30% above the higest recorded preoperative pressure. After stabilization, phentolamine was administered, and infusion rates were adjusted so that arterial blood pressure was returned to levels measured before bypass. After infusion, all patients showed an increase in cardiac index, mean arterial pressure, mean stroke volume index, and left ventricular stroke work index. Mean pulmonary artery pressure, pulmonary vascular resistance, and left atrial pressure decreased in all patients. This study demonstrates that hemodynamic improvement occurs in humans in low cardiac output state with simultaneous infusion of levarterenol and phentolamine. We recommend these agents for use in patients with low output, unless they continue to receive propranolol during and after operation. Patients on a regimen of propranolol should not be given levarterenol and phentolamine." @default.
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- W2003013002 date "1980-01-01" @default.
- W2003013002 modified "2023-10-15" @default.
- W2003013002 title "The Use of Levarterenol and Phentolamine in Patients with Low Cardiac Output Following Open-Heart Surgery" @default.
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- W2003013002 doi "https://doi.org/10.1016/s0003-4975(10)61622-0" @default.
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