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  • Title: Changing trends in the long-term prognosis of patients with acute myocardial infarction: a population-based perspective.
    Author: Botkin NF, Spencer FA, Goldberg RJ, Lessard D, Yarzebski J, Gore JM.
    Journal: Am Heart J; 2006 Jan; 151(1):199-205. PubMed ID: 16368319.
    Abstract:
    BACKGROUND: Little contemporary data exist describing changes over time in the postdischarge prognosis of hospital survivors of acute myocardial infarction (AMI). The purpose of our study was to examine recent and multidecade-long (1975-2001) trends in the long-term prognosis of greater Worcester (MA) residents discharged from all metropolitan Worcester hospitals after confirmed AMI. METHODS: A total of 9827 greater Worcester residents with independently validated AMI discharged from all metropolitan Worcester hospitals during 13 annual periods between 1975 and 2001 comprised the study population. A variety of follow-up approaches were used to ascertain the survival status of discharged patients through the end of 2003. RESULTS: Crude unadjusted 1-year postdischarge survival rates declined over time. Suggestions of modest improvements in the multivariable adjusted 1-year postdischarge survival rates were noted, however, in patients discharged from greater Worcester hospitals in the more recent (2001) (adjusted odds of surviving 1.23, 95% CI 0.97-1.55) as compared with earliest study periods (1975/1978). Advancing age, female sex, presence of prior diabetes, stroke, heart failure, or myocardial infarction and occurrence of several clinical complications during hospitalization were significantly related to an adverse postdischarge prognosis. CONCLUSIONS: The results of this investigation provide contemporary insights into the long-term survival of patients with AMI from a more generalizable population-based perspective. Multivariable adjusted analyses revealed slight improvements in postdischarge survival over time. Our data identify several high-risk groups that should be targeted for more aggressive surveillance and increased use of effective cardiac therapies and interventions.
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