期刊
INTERNATIONAL JOURNAL OF CARDIOLOGY
卷 100, 期 1, 页码 109-117出版社
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/j.ijcard.2004.10.004
关键词
cigarette smoking; acute coronary syndromes; unstable angina; ST-segment elevation myocardial infarction; Non-ST-segment elevation myocardial infarction
Purpose: To determine the impact of cigarette smoking on the presentation, treatment, and in-hospital outcomes of patients admitted with the full spectrum of acute coronary syndromes. Methods: GRACE is a multinational observational registry involving 94 hospitals in 14 countries. This analysis is based on 19,325 patients aged at least 18 years admitted for acute coronary syndromes as a presumptive diagnosis with at. least one of the following: electrocardiographic changes consistent with acute coronary syndromes, serial increases in serum biochemical markers of cardiac necrosis, and/or documentation of coronary artery disease. The main outcomes measured were mode of presentation, treatment and in-hospital death in the ST-segment elevation myocardial infarction, non-ST-segment elevation myocardial infarction, and unstable angina groups to assess the impact of smoking status. Results: Smokers were more frequently diagnosed with ST-segment elevation myocardial infarction (46.0%) than former smokers (27.4%) and non-smokers (30.2%) (P < 0.001). Smokers were mostly men, were younger and more aggressively treated than former smokers and nonsmokers across the three acute coronary syndrome groups. Unadjusted in-hospital mortality rates were lower in smokers compared with former smokers and non-smokers in the study population (3.3%, 4.5%, and 6.9%, respectively, P < 0.001), and in the ST-segment elevation myocardial infarction and non-ST-segment elevation myocardial infarction groups. However, by multivariate logistic analysis, the adjusted in-hospital mortality rate was similar regardless of smoking status. Conclusions: There is no survival advantage related to current or prior cigarette smoking in patients admitted with acute coronary syndromes, regardless of presentation. In this large multinational registry, the smokers' paradox does not exist. (c) 2005 Elsevier Ireland Ltd. All rights reserved.
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