Department of Quantitative Health Sciences; Department of Medicine, Division of Cardiovascular Medicine
Cardiology | Cardiovascular Diseases | Clinical Epidemiology | Epidemiology
BACKGROUND: Cardiogenic shock (CS) is a serious complication of acute myocardial infarction, and the time of onset of CS has a potential role in influencing its prognosis. Limited contemporary data exist on this complication, however, especially from a population-based perspective. Our study objectives were to describe decade-long trends in the incidence, in-hospital mortality, and factors associated with the development of CS in 3 temporal contexts: (1) before hospital arrival for acute myocardial infarction (prehospital CS); (2) within 24 hours of hospitalization (early CS); and (3) > /=24 hours after hospitalization (late CS).
METHODS AND RESULTS: The study population consisted of 5782 patients with an acute myocardial infarction who were admitted to all 11 hospitals in central Massachusetts on a biennial basis between 2001 and 2011. The overall proportion of patients who developed CS was 5.2%. The proportion of patients with prehospital CS (1.6%) and late CS (1.5%) remained stable over time, whereas the proportion of patients with early CS declined from 2.2% in 2001-2003 to 1.2% in 2009-2011. In-hospital mortality for prehospital CS increased from 38.9% in 2001-2003 to 53.6% in 2009-2011, whereas in-hospital mortality for early and late CS decreased over time (35.9% and 64.7% in 2001-2003 to 15.8% and 39.1% in 2009-2011, respectively).
CONCLUSIONS: Development of prehospital and in-hospital CS was associated with poor short-term survival and the in-hospital death rates among those with prehospital CS increased over time. Interventions focused on preventing or treating prehospital and late CS are needed to improve in-hospital survival after acute myocardial infarction.
acute myocardial infarction, cardiogenic shock timing, hospital prognosis, population‐based study
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© 2017 The Authors. Published on behalf of the American Heart Association, Inc., by Wiley.
DOI of Published Version
J Am Heart Assoc. 2017 Jun 7;6(6). pii: e005566. doi: 10.1161/JAHA.117.005566. Link to article on publisher's site
Journal of the American Heart Association
Nguyen HL, Yarzebski JL, Lessard DM, Gore JM, McManus DD, Goldberg RJ. (2017). Ten-Year (2001-2011) Trends in the Incidence Rates and Short-Term Outcomes of Early Versus Late Onset Cardiogenic Shock After Hospitalization for Acute Myocardial Infarction. Open Access Articles. https://doi.org/10.1161/JAHA.117.005566. Retrieved from https://escholarship.umassmed.edu/oapubs/3185
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