Journal
INTERNATIONAL JOURNAL OF CARDIOLOGY
Volume 112, Issue 2, Pages 159-165Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.ijcard.2005.08.031
Keywords
myocardial infarction; congestive heart failure; creatinine; glomerular filtration rate
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Purpose: The present study was designed to assess, 1) the independent prognostic effect of renal dysfunction on all-cause mortality in the setting of acute myocardial infarction with ST-segment elevation (STEMI), and 2) to determine if such effect varies based upon the presence of heart failure (HF) on admission. Methods: 549 consecutive patients admitted with the diagnosis of STEMI were prospectively recruited in a teaching hospital in Spain. Serum creatinine (sCr) and glomerular filtration rate (GFR) were obtained on admission, together with other relevant information used for risk stratification. The independent effect of sCr and GFR on long-term mortality was determined by Cox regression analysis. Main outcome was all-cause mortality, with a median follow-up of I year. Results: In a multivariate analysis the degree of renal impairment was a strong predictor of mortality in patients without clinical evidence of HF at admission (HR = 1.15; 95% CI 1.10 to 1.19 and HR = 1.58; 95% Cl 1.30 to 1.81) for sCr (per 0.1 mg/dl) and GFR (per decreasing 10 ml/min/1.73 m(2)), respectively. In the group with HF, the effect was less pronounced (HR = 1.03; 95% CI 1.01 to 1.04 and HR = 1.17; 95% CI 1.02 to 1,37) for sCr and GFR, respectively. Conclusions: In the setting of STEMI, renal dysfunction estimates showed a differential prognostic effect depending on HF status, with a greater impact seen in patients without clinical evidence of HE (c) 2005 Elsevier Ireland Ltd. All rights reserved.
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