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  • Title: [Evaluation of the different doses of olprinone for continuous infusion after cardiopulmonary bypass for coronary artery bypass surgery].
    Author: Sha K, Iwata M, Mori M, Motozu Y, Yonemoto N, Kitaguchi K, Hirai K, Furuya H.
    Journal: Masui; 2003 Jun; 52(6):621-5. PubMed ID: 12854477.
    Abstract:
    BACKGROUND: We evaluated the hemodynamic efficacy of combined cathecholamine and three different continuous infusion doses of olprinone (0.05, 0.1, 0.3 microgram.kg-1.min-1) in 24 cases (0.05 group: 8 cases, 0.1 group: 8 cases, 0.3 group: 8 cases) undergoing coronary artery bypass grafting (CABG). METHODS: Olprinone was administered as a single dose (0.1 mg.kg-1) into the venous reservoir of the CPB circuit 15 min prior to the end of emergence from CPB, followed by continuous infusion. Hemodynamics were measured at the time of preCPB (M 0), just after the end of CPB (M 1), pre chest closure (M 2) and after chest closure (M 3). Cathecholamines were used to maintain mean arterial pressure (> 65 mmHg) and cardiac index (> 3.0 l.min-1.m-2). Hemodynamics (at M 0, M 1, M 2 and M 3) and the number of cases requiring combined cathecholamine were compared among the 3 doses. RESULTS: Three doses showed no significant difference on hemodynamics. In the number of cases requiring combined cathecholamine, group 0.3 were significantly lower than group 0.05 at dobutamine, and group 0.05 were significantly higher than group 0.1 and 0.3 at norepinephrine. CONCLUSIONS: The higher continuous infusion dose of olprinone (0.3 > 0.1 > 0.05 microgram.kg-1.min-1) can diminish the number of cases requiring combined cathecholamine administration during coronary artery bypass grafting.
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