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Arch Cardiovasc Dis. 2012 Oct;105(10):478-88. doi: 10.1016/j.acvd.2012.05.008. Epub 2012 Sep 25.

The major element of 1-year prognosis in acute coronary syndromes is severity of initial clinical presentation: Results from the French MONICA registries.

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Department of Cardiology A, Toulouse University Hospital, Rangueil Hospital, Toulouse, France.



While the death rate from acute coronary syndromes (ACS) has been in decline for more than 50 years, out-of-hospital mortality remains high despite improvements in care.


To evaluate the importance of out-of-hospital mortality and identify the main predictors of in-hospital and 1-year mortality in France.


Analyses were based on data from the French MONICA population-based registry, which included all cases of ACS occurring in people aged 35-74 years during 2006 in three geographic areas in France. We first evaluated out-of-hospital mortality; then, using data from patients with incident ACS who reached hospital alive, Cox models were performed to determine the main predictors of 1-year mortality. The number of attributable deaths was assessed for variables of interest.


After 1-year follow-up, case-fatality was 29.3% for incident events (n=2547); the proportion of out-of-hospital deaths was 70.3%, and 91.5% of deaths occurred in the 28 days following the ACS. On multivariable analysis, the number of attributable deaths associated with three scenarios (out-of-hospital life-and-death emergency, hospitalization before ACS occurrence, and lack of coronary angiography) was 130 (accounting for 59% of deaths occurring after reaching the hospital) during 1-year follow-up. These scenarios corresponded to patients with an initial severe clinical presentation in whom rates of use of specific treatments and invasive procedures were very low.


A large proportion of fatalities after an ACS occurs in the out-of-hospital phase. Moreover, the major component of 1-year mortality is associated with a poor prognosis at initial presentation. This finding highlights the importance of cardiovascular prevention, population education and better out-of-hospital emergency management in improving prognosis after an ACS.

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