Influence of emergency and selective percutaneous coronary intervention on ventricular remodeling and function in patients with acute myocardial infarction

Objective To evaluate the influences of emergency and selective percutaneous coronary intervention(PCI) on ventricular remodeling and function in patients with acute myocardial infarction(AMI).Methods Emergency PCI was performed on patients with AMI within 12 to 24 hours of onset.Selective PCI was performed on those patients without indication of emergency PCI.After about 2 weeks,3 or 6 months of the operation,Echocardiography was performed to evaluate index of end systolic volume( LVESVI),end diastolic volume(LVEDVI),ejection fracture(LVEF) and relative wall movement(RWMI) of left ventricle.Results There were 75 patients selected in this study,48 cases in emergency PCI group and 27 cases in selected PCI group.After two weeks of PCI,compared with the selective group,the LVESVI,LVEDVI,LVEF and RWMI were significantly improved in emergency PCI group.In selective group,the LVESVI,LVEDVI,LVEF and RWMI were significantly better in 3 and 6 months compared with those in 2 weeks after PCI.In 6 months after PCI,LVEDVI,LVEF and RWMI were not significantly different in the two groups,except of LVESVI.The indexes of globe wall movement were not significantly different in the two groups at all the time points.Conclusion Both the direct and selective PCI can inhibit left ventricular remodeling and improve left ventricular function.Emergency PCI is better than selective PCI.