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Predictors and in-hospital prognosis of recurrent acute myocardial infarction.
Journal of Geriatric Cardiology : JGC 2016 October
OBJECTIVE: To investigate the contributing factors and in-hospital prognosis of patients with or without recurrent acute myocardial infarction (AMI).
METHODS: A total of 1686 consecutive AMI patients admitted to Peking University People's Hospital from January 2010 to December 2015 were recruited. Their clinical characteristics were retrospectively compared between patients with or without a recurrent AMI. Then multivariable logistic regression was used to estimate the predictors of recurrent myocardial infarction.
RESULTS: Recurrent AMI patients were older (69.3 ± 11.5 vs. 64.7 ± 12.8 years, P < 0.001) and had a higher prevalence of diabetes mellitus (DM) (52.2% vs. 35.0%, P < 0.001) compared with incident AMI patients, they also had worse heart function at admission, more severe coronary disease and lower reperfusion therapy. Age (OR = 1.03, 95% CI: 1.02-1.05; P < 0.001), DM (OR = 1.86, 95% CI: 1.37-2.52; P < 0.001) and reperfusion therapy (OR = 0.74; 95% CI: 0.52-0.89; P < 0.001) were independent risk factors for recurrent AMI. Recurrent AMI patients had a higher in-hospital death rate (12.1% vs. 7.8%, P = 0.039) than incident AMI patients.
CONCLUSIONS: Recurrent AMI patients presented with more severe coronary artery conditions. Age, DM and reperfusion therapy were independent risk factors for recurrent AMI, and recurrent AMI was related with a high risk of in-hospital death.
METHODS: A total of 1686 consecutive AMI patients admitted to Peking University People's Hospital from January 2010 to December 2015 were recruited. Their clinical characteristics were retrospectively compared between patients with or without a recurrent AMI. Then multivariable logistic regression was used to estimate the predictors of recurrent myocardial infarction.
RESULTS: Recurrent AMI patients were older (69.3 ± 11.5 vs. 64.7 ± 12.8 years, P < 0.001) and had a higher prevalence of diabetes mellitus (DM) (52.2% vs. 35.0%, P < 0.001) compared with incident AMI patients, they also had worse heart function at admission, more severe coronary disease and lower reperfusion therapy. Age (OR = 1.03, 95% CI: 1.02-1.05; P < 0.001), DM (OR = 1.86, 95% CI: 1.37-2.52; P < 0.001) and reperfusion therapy (OR = 0.74; 95% CI: 0.52-0.89; P < 0.001) were independent risk factors for recurrent AMI. Recurrent AMI patients had a higher in-hospital death rate (12.1% vs. 7.8%, P = 0.039) than incident AMI patients.
CONCLUSIONS: Recurrent AMI patients presented with more severe coronary artery conditions. Age, DM and reperfusion therapy were independent risk factors for recurrent AMI, and recurrent AMI was related with a high risk of in-hospital death.
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