• Int. J. Cardiol. · Oct 2011

    Comparative Study

    A comparison of ST elevation versus non-ST elevation myocardial infarction outcomes in a large registry database: are non-ST myocardial infarctions associated with worse long-term prognoses?

    • Lech Polonski, Mariusz Gasior, Marek Gierlotka, Tadeusz Osadnik, Zbigniew Kalarus, Maria Trusz-Gluza, Marian Zembala, Krzysztof Wilczek, Andrzej Lekston, Tomasz Zdrojewski, Michal Tendera, and PL-ACS Registry Pilot Group.
    • Silesian Centre for Heart Diseases, IIIrd Department of Cardiology, Medical Faculty in Zabrze, Medical University of Silesia, Poland.
    • Int. J. Cardiol. 2011 Oct 6; 152 (1): 70-7.

    BackgroundPrognoses in STEMI and NSTEMI beyond one year from onset remain unclear. We aimed to compare the treatments and the two-year outcomes in patients with myocardial infarction (MI) enrolled at the Polish Registry of Acute Coronary Syndromes (PL-ACS).MethodsA total of 13,441 patients with MI (8250 with STEMI, and 5191 with NSTEMI) underwent medical care between October 2003 and June 2005 in the Silesia region (4.8 million inhabitants). The events analyzed were death, MI, stroke and percutaneous (PCI) or surgical (CABG) revascularization.ResultsAfter two years, NSTEMI was associated with a higher incidence of death (hazard ratio (HR) of 1.09 (95% confidence interval (CI) 1.02-1.17, p<0.0001)); a higher incidence of reinfarction, stroke, CABG and a lower rate of PCI. Adjustments for baseline characteristics and treatment strategy (invasive vs. non-invasive) reversed the HR for mortality and eliminated the difference in MI and stroke. The adjusted HR for mortality was 0.76 (95% CI, 0.71-0.83, p<0.0001). STEMI and NSTEMI patients treated non-invasively were older and showed higher incidences of diabetes, obesity, pulmonary edema and cardiogenic shock than their invasively treated counterparts. Invasively treated patients received aspirin, beta-blockers, ACE inhibitors and statins more often during hospitalization and at discharge.ConclusionsThe unadjusted long-term prognosis was worse in NSTEMI. After adjustment for the baseline characteristics and treatment strategy, the long-term prognosis was worse in STEMI. Patients with MI treated invasively showed more favorable clinical characteristics and received guideline-recommended therapy more often than patients who did not undergo invasive treatment.Copyright © 2010 Elsevier Ireland Ltd. All rights reserved.

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