Objective:To investigate the predictive value of the left ventricular global function index(LVGFI)for major adverse cardiovascular events(MACE)in patients with acute myocardial infarction(AMI)undergoing percutaneous coronary intervention(PCI),and to compare its predictive efficacy with left ventricular ejection frac-tion(LVEF).Methods:Two hundred and nine AMI patients who underwent PCI in our hospital from December 2020 to June 2022 were included.All patients underwent routine cardiac ultrasound within 48 hours after the pro-cedure,and LVGFI values were calculated.The occurrence of MACE within one year after PCI surgery was fol-lowed up.The Multiple factor Cox regression analysis was used to evaluate the correlation between LVGFI and clinical outcomes.The receiver working characteristic curve(ROC)was used to analyse the predictive value of LVGFI and LVEF on MACE.Results:Forty-three patients(20.6%)occurred MACE during the follow-up peri-od.The LVGFI level in the MACE group was significantly lower than that in the non-MACE group(P<0.001).Cox regression analysis showed that LVGFI was still an independent factor for predicting MACE(HR=0.796,95%CI:0.642-0.989,P<0.001).The ROC curve analysis showed that the AUC of LVGFI and LVEF in pre-dicting MACE were 0.822 and 0.745,the sensitivities were 88.6%and 67.5%,and the specificities were 62.8%and 74.4%,respectively.Kaplan-Meier survival analysis showed that the survival rate of the LVGFI<22.37%group was lower than that of the LVGFI≥22.37%group(log rank P<0.001).Conclusion:LVGFI is an independ-ent predictor of MACE in AMI patients after PCI,and shows better predictive performance compare with LVEF.
left ventricular global function indexacute myocardial infarctionmajor adverse cardiovascular eventleft ventricular ejection fraction