Document Detail


N-terminal pro-B-type natriuretic peptide levels for dynamic risk stratification of patients with acute coronary syndromes.
MedLine Citation:
PMID:  15533869     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Elevated baseline levels of B-type natriuretic peptide (BNP) and the N-terminal fragments of its prohormone, N-terminal-pro-BNP (NT-proBNP), have been associated with adverse long-term outcome in patients with acute coronary syndromes, whereas the prognostic implications of serial NT-proBNP measurements have not been investigated to date. METHODS AND RESULTS: NT-proBNP, troponin T, and C-reactive protein were measured at baseline and at 48 and 72 hours in 1791 patients with non-ST-elevation acute coronary syndromes. Death and myocardial infarction were recorded during 30 days of follow-up. After adjustment for independent predictors of cardiac risk, baseline NT-proBNP levels >250 ng/L were associated with higher event rates (adjusted OR, 3.7; 95% CI, 2.3 to 5.7; P<0.001). In troponin T-negative patients, NT-proBNP identified a subgroup of high-risk patients (OR, 5.9; 95% CI, 2.6 to 13.3; P<0.001). The risk in those patients (7.2%) did not significantly differ from that in troponin T-positive patients (9.8%; P=0.25). Importantly, clinical stabilization without refractory ischemia was associated with a rapid (as soon as 48 hours after onset of symptoms) and significant (48 hours; -24%; 72 hours, -49%; both P<0.001) decline in NT-proBNP levels. In patients with high NT-proBNP baseline levels, lack of a rapid decline in NT-proBNP levels (< or =250 ng/L) was linked to an adverse short-term prognosis (OR, 33.7; 95% CI, 8.2 to 138.8; P<0.001). In patients with low NT-proBNP baseline levels, a rise in NT-proBNP levels over 72 hours to >250 ng/L was also linked to an adverse 30-day prognosis (OR, 24.0; 95% CI, 8.4 to 68.5; P<0.001). CONCLUSIONS: Neurohumoral activation as evidenced by NT-proBNP appears as a unifying feature that is independent of other biochemical markers (myocardial necrosis, inflammation) and is a powerful and independent determinant of the short-term cardiac risk in patients with acute coronary syndromes. Whether serial measurements of NT-proBNP in patients with ACS may be used to more rapidly identify patients suitable for early discharge or more intensive therapy deserves future prospective studies.
Authors:
Christopher Heeschen; Christian W Hamm; Veselin Mitrovic; Nicte-Ha Lantelme; Harvey D White;
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Multicenter Study; Randomized Controlled Trial; Research Support, Non-U.S. Gov't     Date:  2004-11-08
Journal Detail:
Title:  Circulation     Volume:  110     ISSN:  1524-4539     ISO Abbreviation:  Circulation     Publication Date:  2004 Nov 
Date Detail:
Created Date:  2004-11-16     Completed Date:  2005-06-15     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0147763     Medline TA:  Circulation     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3206-12     Citation Subset:  AIM; IM    
Affiliation:
J.W. Goethe University, Department of Cardiology, Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany. c.heeschen@em.uni-frankfurt.de
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MeSH Terms
Descriptor/Qualifier:
Acute Disease
Anticoagulants / administration & dosage,  therapeutic use
Aspirin / administration & dosage,  therapeutic use
Biological Markers
C-Reactive Protein / analysis
Drug Therapy, Combination
Follow-Up Studies
Heparin / administration & dosage,  therapeutic use
Humans
Incidence
Myocardial Infarction / mortality
Myocardial Ischemia / blood*,  classification,  drug therapy,  mortality
Natriuretic Peptide, Brain
Nerve Tissue Proteins / blood*
Peptide Fragments / blood*
Predictive Value of Tests
Risk
Risk Assessment
Syndrome
Troponin T / blood
Tyrosine / administration & dosage,  analogs & derivatives*,  therapeutic use
Chemical
Reg. No./Substance:
0/Anticoagulants; 0/Biological Markers; 0/Nerve Tissue Proteins; 0/Peptide Fragments; 0/Troponin T; 0/pro-brain natriuretic peptide (1-76); 114471-18-0/Natriuretic Peptide, Brain; 144494-65-5/tirofiban; 50-78-2/Aspirin; 55520-40-6/Tyrosine; 9005-49-6/Heparin; 9007-41-4/C-Reactive Protein

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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