BACKGROUND: Temporal trends in the incidence and mortality of acute myocardial infarction (AMI) have not been fully clarified in Japan.Methods and Results: The Tokyo CCU network collects information every 3 months regarding the number of AMI cases, age of patients and in-hospital mortality. Age-adjusted hospitalized AMI numbers were unchanged from 2006 to 2016 (40.7/100,000 persons/year in 2016). Annual age-adjusted in-hospital mortality decreased slightly (5.8% in 2006 to 5.2% in 2016). CONCLUSIONS: A steady trend of AMI incidence was observed over the past 11 years in the Tokyo metropolitan area. In-hospital mortality decreased slightly but significantly, with the establishment of primary percutaneous coronary intervention.
BACKGROUND: Temporal trends in the incidence and mortality of acute myocardial infarction (AMI) have not been fully clarified in Japan.Methods and Results: The Tokyo CCU network collects information every 3 months regarding the number of AMI cases, age of patients and in-hospital mortality. Age-adjusted hospitalized AMI numbers were unchanged from 2006 to 2016 (40.7/100,000 persons/year in 2016). Annual age-adjusted in-hospital mortality decreased slightly (5.8% in 2006 to 5.2% in 2016). CONCLUSIONS: A steady trend of AMI incidence was observed over the past 11 years in the Tokyo metropolitan area. In-hospital mortality decreased slightly but significantly, with the establishment of primary percutaneous coronary intervention.