Non infarction related artery progression in patients with acute ST elevation myocardial infarction after direct percutaneous coronary intervention

Objective To observe the infarct-related artery changes and its related clinical factors in patients with acute ST elevation myocardial infarction(STEMI) after direct percutaneous coronary intervention(PCI).Methods Five hundreds and nineteen patients with STEMI were preformed with direct PCI and followed-up for six months,then the rate of revascularization for coronary heart disease′s clinical symptoms was observed.Results One hundred and twelve patients with coronary heart disease′s clinical symptoms were performed with coronary angiography,among the patients,seventy-two patients were treated with PCI once more,among them,there were twenty-seven criminal′s blood vessels(infarct-related artery PCI group:included nineteen stent restenosis and eight stent thrombosis),forty-five were non infarct-related artery disease(non infarct-related artery again PCI group);Four hundreds and forty-seven patients didn′t performed with PCI(not-again PCI group).There was no significant differencein age,gender,diabetes,hypertension,hyperlipidemia,smoking history,prior myocardial infarction,prior PCI,prior coronary artery bypass graft surgery,left ventricular ejection fraction,low density lipoprotein-cholesteroland ≥2 vessels lesions rate among patients in three groups(P0.05).However,there was significant difference in serum C-reactive protein and stent length for primary PCI in patients among three groups(P0.001).Conclusion The main reason of Patients with acute STEMI′s again vascular remodeling after directly PCI postoperative is non infarct-related artery disease′s progression.