The correlation analysis of baseline MEE and other variables in AMI complicated by HF patients revealed that there was a negative correlation between MEE and LVEF (r = −0.481, P < 0.01), and MEE showed positive correlations with NYHA classification (r = 0.163, P = 0.011), LVIDs (r = 0.574, P < 0.01), LVIDd (r = 0.500, P < 0.01), LAD (r = 0.211, P = 0.001), cESS (r = 0.595, P < 0.01), HR (r = 0.239, P < 0.01), NT-proBNP (r = 0.138, P = 0.031), and UA (r = 0.135, P = 0.035). This evidence concerns the gene NPPB and hydrops fetalis.