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Does Admission NT-ProBNP Increase the Prognostic Accuracy of GRACE Risk Score in the Prediction of Short-Term Mortality After Acute Coronary Syndromes?

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Resumo:BACKGROUND: NT-proBNP has prognostic implications in heart failure. In acute coronary syndromes (ACS) setting, the prognostic significance of NT-proBNP is being sought. We studied short-term prognostic impact of admission NT-proBNP in patients admitted for ACS and in association with GRACE risk score (GRS). METHODS AND RESULTS: We studied 1035 patients admitted with ACS. Patients were divided in quartiles according to NT-proBNP levels on admission: Q1 <180 pg/ml; Q2 180-691 pg/ml; Q3 696-2664 pg/ml; Q4 2698-35 000 pg/ml. Groups were compared in terms of short-term all-cause mortality. Patients with higher NT-proBNP had worst GRS on admission. They also received less aggressive treatment. In-hospital mortality was 0.8%, 3.0%, 5.8% and 12.8% (P<0.001) and 30-day mortality 1.6%, 4.6%, 6.5% and 16.7% (P<0.001) respectively. In multivariate logistic regression analysis, NT-proBNP is an independent predictor of in-hospital (OR 2.35; 95% CI: 1.12-4.93, P=0.022) and 30-day mortality (OR 2.20; 95% CI: 1.17-4.12, P=0.014). However, NT-proBNP does not add any incremental benefit to GRS for prediction of outcome by ROC curve analysis. CONCLUSIONS: NT-proBNP is an independent predictor of in-hospital and 30-day mortality after ACS, independently of left ventricular function, but does not increase the prognostic accuracy of GRS.
Autores principais:Timóteo, AT
Outros Autores:Toste, A; Ramos, R; Miranda, F; Ferreira, ML; Oliveira, JA; Cruz Ferreira, R
Assunto:Analysis of Variance Biomarkers/blood Chi-Square Distribution Female Humans Linear Models Logistic Models Male Middle Aged Multivariate Analysis Natriuretic Peptide, Brain/blood Peptide Fragments/blood Portugal/epidemiology Predictive Value of Tests Prognosis ROC Curve Retrospective Studies Risk Assessment/methods Risk Factors Severity of Illness Index Statistics, Nonparametric Ventricular Dysfunction, Left/etiology Acute Coronary Syndrome/blood Hospital Mortality Patient Admission HSM CAR HSM PAT CLIN Acute Coronary Syndrome/complications Acute Coronary Syndrome/diagnosis Acute Coronary Syndrome/mortality
Ano:2009
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:Centro Hospitalar de Lisboa Central, EPE (CHLC)
Idioma:inglês
Origem:Repositório do Centro Hospitalar de Lisboa Central, EPE

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