Abstract

Objective To investigate the effect of Lyophiluzed Recombinant Human Brain Natriuretic Peptide (rhBNP) on myocardiac reperfusion injury in the patients with ST-segment elevation myocardial infarction (STEMI) of anterior wall undergoing emergency percutaneous coronary intervention (PCI). Methods This prospective study included patients with acute STEMI of anterior wall undergoing emergency PCI hospitalised at Affiliated Zhongshan Hospital of Dalian University from March 2013 to June 2014. Patients with SBP -1 · min -1 , and the totle dose of rhBNP was 0.5 g in each patient. Other procedures of rhBNP group were similar with those of control group. Patients’ demographic, clinical and angiographic characteristics were obtained. The supemxide dismutase (SOD), malonaldehyde (MDA) and high sensitivity C-reactive protein (hsCRP) were measured. The parameters presenting myocardial infusion including corrected TIMI framecount (CTFC) and myocardial blush grade (MBG) were calculated. The reperfusion arrhythmia was recorded. Left ventricular ejection fraction (LVEF) of the recruited patients was assessed at 3 days and 6 weeks after emergency PCI. Results The serum levels of MDA and hsCRP were significantly lower, and serum SOD level was significantly higher in rhBNP group than those in control group (all p Conclusion RhBNP can effectively reduce myocardial ischemia-reperfusion injury in pantients with STEMI of anterior wall after emergency PCI.

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