Clinical analysis of no-reflow phenomenon after emergency PCI in AMI patients

Objective To investigate the incidence,mortality and risk factors of no-reflow phenomenon in patients undergoing percutaneous coronary intervention(PCI) for AMI.Methods 169 patients undergoing PCI for AMI were divided into two groups:no-reflow group and normal re-flow group.The incidence of no-reflow phenomenon,in-hospital mortality and risk factors were evaluated.Results There were no significant differences in term of mean age,sex,diabetes,hypertension,hyperlipemia,smoke status and the location of AMI.But there were significant differences in terms of absence of angina pectoris history,the time to recanalization of criminal artery,heart function on admission,WBC count,CK-MB and troponin-I level between two groups.Incidence of no-reflow phenomenon was 17.2%.Mortality was significantly higher in no-reflow group than in normal re-flow group(13.8 % vs.3.6%,P0.05).Conclusion Absence of angina pectoris history before AMI,long time to recanalization of criminal artery,low heart function classification on admission,high WBC count,high level of CK-MB and troponin-I are independent risk factors of no-reflow phenomenon.No-reflow after PCI suggests poor prognosis.