Document Detail


Flow-mediated vasodilation predicts outcome in patients with chronic heart failure: comparison with B-type natriuretic peptide.
MedLine Citation:
PMID:  16168284     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: The aim of this study was to assess the predictive potency of impaired endothelium-dependent flow-mediated vasodilation (FMD) in patients with chronic heart failure (CHF). BACKGROUND: Chronic heart failure is associated with reduced FMD; the prognostic impact of this observation is unknown. METHODS: Seventy-five ambulatory CHF patients (United Network of Organ Sharing [UNOS] status 2) with a left ventricular ejection fraction (LVEF) < or =30%, despite optimized medical therapy (angiotensin-converting enzyme inhibitor or angiotensin II receptor blocker, 100%; beta-blocker, 81%), were evaluated. Using high-resolution ultrasound, FMD of the brachial artery was assessed in addition to other neurohormonal, clinical, and hemodynamic variables. Age, gender, New York Heart Association (NYHA) functional class, LVEF, hemodynamic variables, B-type natriuretic peptide (BNP) levels, medical therapy, cardiovascular risk factors, and FMD were analyzed for prediction of the combined end point conversion to UNOS status 1 or death in a multivariate Cox model. RESULTS: Up to three years, 21 patients (28%) converted to UNOS status 1, and 6 patients (8%) died. Univariate risk factors for the combined end point were log BNP (p = 0.0032), FMD (p = 0.0033), NYHA functional class (p = 0.0132), beta-blocker therapy (p = 0.0367), and mean blood pressure (p = 0.0406). In the multivariate analysis, only FMD (p = 0.0007), log BNP (p = 0.0032), and mean blood pressure (p = 0.0475) were independently related to the combined end point. In the Kaplan-Meier plot, significantly more patients with FMD <6.8% (median) reached the combined end point, as compared with patients with FMD >6.8% (p = 0.004). CONCLUSIONS: In CHF, impaired FMD is a strong, independent predictor of conversion to UNOS status 1 or death.
Authors:
Brigitte Meyer; Deddo Mörtl; Karin Strecker; Martin Hülsmann; Vanessa Kulemann; Thomas Neunteufl; Richard Pacher; Rudolf Berger
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of the American College of Cardiology     Volume:  46     ISSN:  1558-3597     ISO Abbreviation:  J. Am. Coll. Cardiol.     Publication Date:  2005 Sep 
Date Detail:
Created Date:  2005-09-19     Completed Date:  2005-12-22     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8301365     Medline TA:  J Am Coll Cardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1011-8     Citation Subset:  AIM; IM    
Affiliation:
Department of Cardiology, Medical University of Vienna, Vienna, Austria.
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MeSH Terms
Descriptor/Qualifier:
Adult
Chronic Disease
Female
Heart Failure / blood*,  physiopathology*,  ultrasonography
Humans
Male
Middle Aged
Natriuretic Peptide, Brain / blood*
Prognosis
Regional Blood Flow
Vasodilation
Chemical
Reg. No./Substance:
114471-18-0/Natriuretic Peptide, Brain

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


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