ABSTRACT
Objective:To investigate the protective effects of levosimendan combined with lyophilized recombinant human brain natriuretic peptide (rhBNP) on myocardium in patients with acute myocardial infarction complicated by heart failure.Methods:140 patients with acute myocardial infarction complicated by heart failure who received treatment in Changxing People's Hospital from June 2018 to June 2020 were included in this study. They were randomly assigned to receive either routine treatment (control group, n = 70) or routine treatment, levosimendan combined with rhBNP (study group, n = 70). Serum levels of creatine kinase (CK)-MB, cardiac troponin I (cTnI), lactate dehydrogenase (LDH), high-sensitivity C-reactive protein (hs-CRP), which were associated with myocardial injury, were measured in each group. In addition, the changes in cardiac ultrasound indexes left ventricular end diastolic diameter (LVEDD), left ventricular end systolic diameter (LVESD) and left ventricular ejection fraction (LVEF) were observed. Clinical effects on heart failure were evaluated. Adverse drug reactions were monitored during the treatment. Results:After treatment, CK-MB, cTnI, LDH and hs-CRP levels in the study group were (56.73 ± 12.15) U/L, (0.41 ± 0.19) μg/L, (126.83 ± 15.26) U/L and (1.59 ± 0.27) mg/L, respectively, which were significantly lower than those in the control group [(78.52 ± 14.07) U/L, (0.68 ± 0.21) μg/L, (187.25 ± 23.04) U/L, (2.84 ± 0.41) mg/L, t = 5.569-12.418, all P < 0.05]. LVEDD and LVESD in the study group were significantly lower than those in the control group, while LVEF in the study group was significantly higher than that in the control group ( t = 4.435-6.426, all P < 0.05). Total effective rate in the study group was significantly higher than that in the control group [88.57% (62/70) vs. 72.86% (51/70), χ2 = 5.552, P < 0.05]. There was no significant difference in total incidence of adverse drug reactions between study and control groups [11.43% (8/70) vs. 8.57% (6/70), χ2 = 0.317, P > 0.05]. Conclusion:Levosimendan combined with rhBNP can effectively alleviate myocardial injury in patients with acute myocardial infarction complicated by heart failure, improve myocardial function, is highly safe, and thereby deserves clinical application.