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- W2032728379 abstract "To assess the effects of dobutamine and enoximone on transmitral (TMF) and pulmonary venous flow (PVF) characteristics.Prospective and randomized.A university hospital intensive care unit.Thirty patients with moderate left ventricular dysfunction after coronary artery bypass grafting (CABG).Patients received either dobutamine, 10 micrograms/kg/min, or enoximone, 20 micrograms/kg/min, for the treatment of a low cardiac index (CI) (< 2.2 L/min/m2).Both drugs significantly (p < 0.05) increased CI from 1.91 +/- 0.17 (dobutamine) and 1.97 +/- 0.17 (enoximone) at baseline to 2.86 +/- 0.70 and 2.84 +/- 0.39 L/min/m2, respectively. Compared with the enoximone (enox)-treated group, the administration of dobutamine (dob) resulted in significantly (p < 0.05) greater increases in mean arterial pressure (dob: 18 +/- 9% v enox: -2 +/- 7%), heart rate (dob: 24 +/- 13% v enox: 3 +/- 5%) and pulmonary artery pressure (dob: 5 +/- 10% v enox: -4 +/- 9%). In contrast, the increase in stroke volume index was significantly less in the dobutamine-treated group (dob: 22 +/- 27% v enox: 41 +/- 21%). The TMF indices, peak E, and peak A wave increased significantly (p < 0.05) after both dobutamine (baseline: 37.3 +/- 6.7 and 41.1 +/- 9.3; max dose: 42.4 +/- 4.3 and 49.0 +/- 10.2 cm/s) and enoximone (baseline: 36.2 +/- 7.5 and 44.2 +/- 10.9; max dose: 40.5 +/- 5.0 and 49.4 +/- 12.1 cm/s) without significantly altering the E/A ratio. Only dobutamine significantly (p < 0.05) decreased isovolumic relaxation time from 109 +/- 24 to 94 +/- 21 ms. There was no significant change in isovolumic relaxation time between the dobutamine (-12% +/- 17%)- and the enoximone (-4% +/- 21%)- treated group. PVF recordings demonstrated a significant increase in time velocity integrals of the S wave with both dobutamine (12.2 +/- 3.1 v 13.7 +/- 3.2 cm) and enoximone (11.0 +/- 3.0 v 12.2 +/- 3.2 cm). No changes in the systolic fraction of the PVF were noted.There were no major differences in parameters reflecting diastolic function between the dobutamine- and the enoximone-treated groups." @default.
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- W2032728379 date "1996-10-01" @default.
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- W2032728379 title "Effects of dobutamine and enoximone on transmitral and pulmonary venous flow characteristics in patients with left ventricular dysfunction after coronary artery bypass grafting" @default.
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- W2032728379 doi "https://doi.org/10.1016/s1053-0770(96)80201-1" @default.
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