Estimated glomerular filtration rate, inflammation, and cardiovascular events after an acute coronary syndrome.

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Estimated glomerular filtration rate, inflammation, and cardiovascular events after an acute coronary syndrome.

Am Heart J. 2008 Apr;155(4):725-31

Authors: Mielniczuk LM, Pfeffer MA, Lewis EF, Blazing MA, de Lemos JA, Shui A, Mohanavelu S, Califf RM, Braunwald E

Both renal dysfunction and elevated levels of high-sensitivity C-reactive protein (CRP) are associated with a higher risk of cardiovascular (CV) outcomes. However, it remains to be established whether the prognostic value of impaired estimated glomerular filtration rate (GFR) remains after accounting for markers of inflammation. METHODS AND RESULTS: Glomerular filtration rate was estimated using the Modification of Diet in Renal Disease equation in 4178 patients with non-ST or ST-elevation acute coronary syndromes, participating in the A to Z trial. The mean estimated GFR was 68 mL/min, with a median baseline CRP of 20.2 mg/L. Both an estimated GFR <60 mL/min (HR 2.13, 95% CI 1.7-2.6) and a CRP in the fourth quartile (HR 1.7, 95% CI 1.4-2.2) were strong univariate predictors of a CV event (composite of CV death, recurrent myocardial infarction, heart failure, or stroke). After adjusting for baseline CRP, GFR <60 mL/min remained a strong multivariate predictor for CV death (HR 1.82, 95% CI 1.1-2.97). Randomization to high-dose statin therapy was associated with a reduction in the CV composite (adjusted HR 0.69, 95% CI 0.5-0.95) irrespective of baseline renal function. CONCLUSIONS: In a population of patients without overt renal disease, moderate reductions in estimated GFR remain an important prognostic marker. This increased CV hazard associated with an estimated GFR <60 mL/min is independent and additive to markers of inflammation.

PMID: 18371483 [PubMed - indexed for MEDLINE]

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