Document Detail


Influence of left ventricular filling pattern on exercise-induced changes of natriuretic peptides in patients with suspected coronary artery disease.
MedLine Citation:
PMID:  17442418     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Exertional change in brain natriuretic peptide (BNP) has recently been proposed as a biomarker of myocardial ischemia. However, in patients with abnormal left ventricular (LV) filling, BNP is frequently increased. Therefore, we studied the relationship of exertional changes in atrial and brain natriuretic peptides (ANP and BNP) with resting and exercise-induced changes of LV systolic function and filling pattern. METHODS: LV function at rest and peak exercise was assessed in 140 patients (mean age 65 years, 78 men) during symptom-limited exercise echocardiography for evaluation of suspected coronary artery disease. ANP and BNP were measured at rest and 5 min after exercise. RESULTS: ANP and BNP increased with exercise. The increase in BNP was significantly greater in the 65 patients with than in the 76 patients without ischemia [14.7 pg/ml (5.7-19.6) vs. 4.9 pg/ml (2.1-9.2), p<0.0001]; there was no difference in increase of ANP [340 pg/ml (176-729) vs. 424 pg/ml (249-648), p=0.54]. The exertional rise in BNP was also greater in patients with abnormal LV filling at rest [10.5 pg/ml (4.9-19.6) vs. 4.1 pg/ml (2.0-6.7), p<0.0001]. By multivariate linear regression, exertional change in wall motion score index (beta=0.23, p<0.001), baseline BNP (beta=0.71, p<0.001), abnormal LV filling pattern (beta=0.24, p<0.001) and age (beta=-0.15, p=0.02) were predictors of change in BNP. CONCLUSIONS: In patients with suspected coronary artery disease, exertional changes of BNP are related not only to ischemia, but also to the LV filling pattern at rest.
Authors:
Jacob E Møller; Sébastien Bergeron; Allan Jaffe; Patricia A Pellikka
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-04-18
Journal Detail:
Title:  International journal of cardiology     Volume:  124     ISSN:  1874-1754     ISO Abbreviation:  Int. J. Cardiol.     Publication Date:  2008 Feb 
Date Detail:
Created Date:  2008-02-04     Completed Date:  2008-03-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8200291     Medline TA:  Int J Cardiol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  204-10     Citation Subset:  IM    
Affiliation:
Division of Cardiovascular Diseases, MN, United States.
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MeSH Terms
Descriptor/Qualifier:
Aged
Analysis of Variance
Angina Pectoris / blood,  diagnosis
Biological Markers / blood
Case-Control Studies
Coronary Disease / blood,  diagnosis*
Echocardiography, Stress / methods*
Exercise Tolerance / physiology
Female
Humans
Linear Models
Male
Middle Aged
Multivariate Analysis
Natriuretic Peptide, Brain / blood*
Predictive Value of Tests
Probability
Reference Values
Sensitivity and Specificity
Stroke Volume*
Ventricular Function, Left / physiology*
Chemical
Reg. No./Substance:
0/Biological Markers; 114471-18-0/Natriuretic Peptide, Brain

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