• J. Card. Fail. · Jun 2005

    NT-ProBNP reduction percentage during admission for acutely decompensated heart failure predicts long-term cardiovascular mortality.

    • Antoni Bayés-Genís, Laura Lopez, Edgar Zapico, Carlos Cotes, Miquel Santaló, Jordi Ordonez-Llanos, and Juan Cinca.
    • Department of Cardiology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
    • J. Card. Fail. 2005 Jun 1; 11 (5 Suppl): S3-8.

    BackgroundN-terminal brain natriuretic peptide (NT-proBNP) improves emergency room diagnosis of acutely decompensated heart failure. Less evidence is available on the usefulness of NT-proBNP as a prognostic marker after hospitalization for acute heart failure. The percentage of NT-proBNP reduction during admission and its prognostic significance were studied.Methods And ResultsThis was a prospective study of 74 patients in the emergency department who were diagnosed with acute heart failure and who had follow-up evaluation for 6 and 12 months after admission. Plasma NT-proBNP concentrations were measured on admission, at 24 hours, at day 7, and at 6 and 12 months. Eighteen patients died during the 12-month follow-up; 12 deaths were from cardiovascular causes. NT-proBNP concentrations were significantly higher in the emergency department and at 24 hours than those concentrations that were found at day 7 and beyond (P < .001). During admission, the NT-proBNP concentration fell a mean of 15% in patients who died of cardiovascular causes during the 1-year follow-up evaluation, in 75% in those patients who died of non-cardiovascular causes, and in 50% in survivors (P = .004). The area under the receiver operator characteristic curve for NT-proBNP reduction percentage to predict cardiovascular death was 0.78 (95% CI, 0.66-0.90; P = .002). A 30% NT-proBNP reduction percentage cutoff value had 75% accuracy for the identification of high-risk patients and was the only variable that was associated with cardiovascular death in multivariate analysis (odds ratio, 4.4; 95% CI, 1.12-17.4; P = .03).ConclusionNT-proBNP reduction percentage during admission for acutely decompensated heart failure appeared to be the best predictor of cardiovascular death during the follow-up period. A <30% NT-proBNP reduction percentage identified a subgroup of high-risk patients.

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