No-reflow during emergency percutaneous coronary intervention in patients with acute ST-segment elevation myocardial infarction: An analysis of influencing factors / 第二军医大学学报

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 Atotal of 92 patients with acute STEMI treated with PCI were divided intonormal reflow group(73 patients) and no-reflow group (19 patients) from June 2012 to 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 92 acute STEMI patients. The systolic blood pressure (SBP), type 2 diabetes, 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 (P<0. 05). Multivariate logistic regression analysis identified that low SBP (SBP<100 mmHg, 1 mmHg=0. 133 kPa), type 2 diabetes, 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 associatedwith six clinical factors SBP<100 mmHg, type 2 diabetes, balloon expansion times, troponin T peak, right coronary artery lesions and period from disease onset to reperfusion.