03 May 2016 : Clinical Research
Levosimendan Versus Dobutamine in Myocardial Injury Patients with Septic Shock: A Randomized Controlled TrialJian-biao MengABCDEF, Ma-hong HuABDG, Zhi-zhen LaiABCDF, Chun-lian JiABE, Xiu-juan XuBC, Geng ZhangAE, Shuyuan TianB
Med Sci Monit 2016; 22:1486-1496
BACKGROUND: We aimed to investigate the effect of levosimendan on biomarkers of myocardial injury and systemic hemodynamics in patients with septic shock.
MATERIAL AND METHODS: After achieving normovolemia and a mean arterial pressure of at least 65 mmHg, 38 septic shock patients with low cardiac output (left ventricular ejective fraction), LEVF £45%) were randomly divided into two groups: levosimendan dobutamine. Patients in the levosimendan and dobutamine groups were maintained with intravenous infusion of levosimendan (0.2 μg/kg/minute) and dobutamine (5 μg/kg/minute) for 24 hours respectively. During treatment we monitored hemodynamics and LVEF, and measured levels of heart-type fatty acid binding protein (HFABP), troponin I (TNI), and brain natriuretic peptide(BNP). In addition, the length of mechanical ventilation, intensive care unit (ICU) stay, hospital stay, and 28-day mortality were compared between the two groups.
RESULTS: The levosimendan group and the dobutamine group were well matched with respect to age (years, 55.4±1 7.5 versus 50.2±13.6) and gender (males, 68.4% versus 57.9%). Levosimendan-treated patients had higher stroke volume index (SVI), cardiac index (CI), LVEF, and left ventricular stroke work index (LVSWI), and lower extravascular lung water index (EVLWI) compared to dobutamine-treated patients (p<0.05). HFABP, TNI, and BNP in the levosimendan group were less than in the dobutamine group (p<0.05). There was no difference in the mechanical ventilation time, length of stay in ICU and hospital, and 28-day mortality between the two groups.
CONCLUSIONS: Compared with dobutamine, levosimendan reduces biomarkers of myocardial injury and improves systemic hemodynamics in patients with septic shock. However, it does not reduce the days on mechanical ventilation, length of stay in ICU and hospital, or 28-day mortality.
Keywords: Dobutamine - therapeutic use, Demography, Biomarkers - blood, Fatty Acid-Binding Proteins - blood, Hemodynamics, Hydrazones - therapeutic use, Lactic Acid - metabolism, Multivariate Analysis, Myocardium - pathology, Natriuretic Peptide, Brain - blood, Pyridazines - therapeutic use, Regression Analysis, Shock, Septic - physiopathology, Troponin I - blood, Ventricular Function, Left
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