Abstract: Objective  To investigate the clinical characteristics of multivessel coronary disease in acute coronary syndrome patients undergoing primary percutaneous coronary intervention and the impact on inhospital outcome. Methods   This retrospective analysis was performed on 72 patients with ACS undergoing primary PCI. Patients were divided into two groups according to the coronary angiogram: singlevessel group(n=35) and multivessel group(n=37). Results  In multivessel group， age， hypertension， diabetes mellitus， smoking， glucose at admission， triacylglyceride were higher than those in singlevessel group(P<0.05). And the left  ventricular ejection fraction in multivessel group  was lower than that in singlevessel group(P=0.001). Compared with singlevessel group， the incidence of MACE  happened more frequently in multivessel group(P<0.05). Conclusion  The patients with multivessel coronary disease  undergoing primary percutaneous coronary intervention  had more risk factors and major  adverse cardiac events.

Key words: coronary disease;angioplasty, transluminal, percutaneous coronary