Abstract：Objective To explore the characteristics and correlated risk factors of hospital infection of acute myocardial infarction. Methods Data of 424 cases with AMI were retrospectively analyzed, these cases were divided into the infection group (56 cases) and the non-infection group (368 cases) according to whether or not with hospital infection. Single factor and multiple risk factors methods were used to screen the risk factors of AMI hospital infection. Results The hospital infection rate of AMI was 13.2% (56/424), mainly in respiratory system and urinary system. Multiple factors analysis result showed that these factors such as combination with basic diseases (OR=4.802, 95%CI:3.381~6.223, P<0.001), heart failure (OR=2.565, 95%CI:1.648~3.482, P=0.004), invasive procedure (OR=5.618, 95%CI:4.017~7.219, P=0.003), use of respirator (OR=1.878, 95%CI:1.213~2.542, P<0.001) and antibacterials (OR=2.815, 95%CI:1.657~3.973, P=0.019) were the risk factors of hospital infection of AMI. Conclusion The hospital infection rate of AMI is high, mainly with respiratory tract infection. We should early monitor, prevent and treat the hospital infection to aim directly at these above independent risk factors, and formulate reasonable intervention measures, in order to cut down hospital infection rate of AMI.
