0.05).In the patients with 4G/4G polymorphism of PAI1 gene,the GMP-140,vWF,FⅦa,D-D and PAI-1 levels in plasma were significantly increased at immediate postoperative period(P0.05).In the patients with 4G/5G and 5G/5G genotypes,all indexes mentioned above were significantly increased at immediate postoperative period(P0.05).In the patients with 4G/4G genotype,the PAI-1 level in plasma was significantly higher than those in the patients with 4G/5G and 5G/5G genotypes 24 h after PCI(P