ArticleInternal and emergency medicine2015
Influence of the previous use of β-blockers on the early clinical course of acute coronary syndromes.
Article in Internal and emergency medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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10 authors at 3 institutions in 1 country.
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Abstract
Recent studies have recently questioned the current role of β-blockers in myocardial infarction. Our purpose is to analyze the influence of the previous use of β-blockers on the early course of patients admitted because of acute coronary syndrome (ACS). We analyzed the data of 37.359 patients included in the ARIAM-Andalucia Registry. Of them, 7759 (20.8%) were previously receiving β-blockers. BB patients were older, more often female, had more risk factors and vascular disease, and less often had an ST-elevation myocardial infarction. In the unadjusted analysis, BB patients less often had ventricular fibrillation or atrioventricular block, and more often a Killip classification >1, and no difference of in-hospital mortality (5.7 vs 5.6%). After logistic regression analysis and propensity score matching, no differences in complications or mortality (odds ratio 0.997, 95% confidence interval 0.882-1.128) were found in relationship to previous β-blockers. In conclusion, we find that the previous administration of β-blockers is not an independent predictor of the early prognosis of ACS.
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