Abstract
To investigate the effects of exogenous recombinant human brain natriuretic peptide (rhBNP) after primary percutaneous coronary intervention (PCI) on non-invasive hemodynamic in acute myocardial infarction patients with left ventricular failure. A number of 96 acute myocardial infarction patients accompanied with heart failure after PCI hospitalized in the People's Hospital of Sanya during February 2012 to October 2015 were selected. They were randomly divided into the therapy group (n=50) and control group (n=46). On the basis of routine treatment, patients in the therapy group were treated with intravenous rhBNP (1.5μg/kg was intravenous injection with uniform speed of 3min, followed by continuous infusion 0.0075μg/kg·min for 72h), while the control group received conventional treatment. BioZ-2011 non-invasive hemodynamic real-time monitoring system was used to monitor the hemodynamic parameters changes and the leaves of plasma pro-BNP, serum creatinine, serum potassium, serum sodium and urine volume of each group before and after treating for 30min, 1h, 3h, 6h, 12h, 24h, 48h, 72h. Patients in the therapy group showed no effect on heart rate, while after 30min of intravenous injection of rhBNP, CO, CI, SV, and SI increased significantly and LVET and TFC reduced at the same time, which had certain effect on blood pressure (SBP/DBP). Compared with the control group, the therapy group showed a faster and more effective improvement on hemodynamics. Acute myocardial infarction patients complicated with left heart failure after primary PCI can significantly improve hemodynamics by treating with rhBNP.
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