Abstract
Objective To identify the factors of no-reflow during emergency percutaneous coronary intervention(PCI)in patients with acute ST-segment elevation myocardial infarction(STEMI).Methods A total of 92patients with acute STEMI treated with PCI were divided into normal reflow group(73patients)and no-reflow group(19patients)from June2012to January 2013.The influencing factors of no-reflow were clarified by comparing clinical symptoms of the two groups.Results The no-reflow rate after undergoing emergency PCI was 20.7% in 92acute STEMI patients.The systolic blood pressure(SBP),type 2diabetes,troponin T peak,period from disease onset to reperfusion,balloon expansion times and stent number of the target blood vessel were significantly different between the two groups(P0.05).Multivariate logistic regression analysis identified that low SBP(SBP100mmHg,1mmHg=0.133kPa),type 2diabetes,balloon expansion times,troponin T peak,right coronary artery lesions and period from disease onset to reperfusion were the risk factors for noreflow during PCI in patients with STEMI.Conclusion No-reflow following emergency PCI in acute STEMI patients is associated with six clinical factors:SBP100 mmHg,type 2diabetes,balloon expansion times,troponin T peak,right coronary artery lesions and period from disease onset to reperfusion.
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