Usefulness of B-type natriuretic peptide and cardiac troponin levels to predict in-hospital mortality from ADHERE

The American Journal of Cardiology
Gregg C FonarowADHERE Scientific Advisory Committee and Investigators

Abstract

B-type natriuretic peptide (BNP) and cardiac troponin (Tn) I or T have been demonstrated to provide prognostic information in patients with acute coronary syndromes. Whether admission BNP and Tn levels provide additive prognostic value in acutely decompensated heart failure (HF) has not been well studied. Hospitalizations for HF from April 2003 to December 2004 entered into ADHERE were analyzed. BNP assessment on admission was performed in 48,629 (63%) of 77,467 hospitalization episodes. Tn assessment was performed in 42,636 (88%) of these episodes. In-hospital mortality was assessed using logistic regression models adjusted for age, gender, blood urea nitrogen, systolic blood pressure, creatinine, sodium, pulse, and dyspnea at rest. Median BNP was 840 pg/ml (interquartile range 430 to 1,730). Tn was increased in 2,370 (5.6%) of 42,636 HF episodes. BNP above the median and increased Tn were associated with significantly increased risk of in-hospital mortality (odds ratios [OR] 2.09 and 2.41 respectively, each p value <0.0001). Mortality was 10.2% in patients with BNP >or=840/Tn increased compared with 2.2% with BNP <840/Tn not increased (OR 5.10, p <0.0001). After covariate adjustment, mortality risk remained significantly incr...Continue Reading

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