Document Detail


Reduction of N terminal-pro-brain (B-type) natriuretic peptide levels with exercise-based cardiac rehabilitation in patients with left ventricular dysfunction after myocardial infarction.
MedLine Citation:
PMID:  16874155     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
INTRODUCTION: N-terminal-pro-brain (B-type) natriuretic peptide (NT-pro-BNP) is a peptide hormone released from ventricles in response to myocyte stretch. The aim of the study was to investigate the influence of exercise training on plasma NT-pro-BNP to verify if this parameter could be used as a biological marker of left ventricular remodelling in myocardial infarction patients undergoing an exercise training programme. METHODS: Forty-four patients after myocardial infarction were enrolled into a cardiac rehabilitation programme, and were randomized in two groups of 22 patients each. Group A patients followed a 3-month exercise training programme, while group B patients received only routine recommendations. All patients underwent NT-pro-BNP assay, and cardiopulmonary exercise test before hospital discharge and after 3 months. RESULTS: In Group A, exercise training reduced NT-pro-BNP levels (from 1498+/-438 to 470+/-375 pg/ml, P=0.0026), increased maximal (VO2peak+4.3+/-2.9 ml/kg per min, P<0.001; Powermax+38+/-7, P<0.001) exercise parameters and work efficiency (Powermax/VO2peak+1.3+/-0.4 Power/ml per kg per min, P<0.001); there was also an inverse correlation between changes in NT-pro-BNP levels and in VO2peak (r=-0.72, P<0.001), E-wave (r=-0.51, P<0.001) and E/A ratio (r=0.59, P<0.001). In group B, at 3 months, no changes were observed in NT-pro-BNP levels, exercise and echocardiographic parameters. CONCLUSION: Three months exercise training in patients with moderate left ventricular systolic dysfunction after myocardial infarction induced a reduction in NT-pro-BNP levels, an improvement of exercise capacity and early left ventricular diastolic filling, without negative left ventricular remodelling. Whether the reduction of NT-pro-BNP levels could be useful as a surrogate marker of favourable left ventricular remodelling at a later follow-up remains to be further explored.
Authors:
Francesco Giallauria; Anna De Lorenzo; Francesco Pilerci; Athanasio Manakos; Rosa Lucci; Marianna Psaroudaki; Mariantonietta D'Agostino; Domenico Del Forno; Carlo Vigorito
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  European journal of cardiovascular prevention and rehabilitation : official journal of the European Society of Cardiology, Working Groups on Epidemiology & Prevention and Cardiac Rehabilitation and Exercise Physiology     Volume:  13     ISSN:  1741-8267     ISO Abbreviation:  Eur J Cardiovasc Prev Rehabil     Publication Date:  2006 Aug 
Date Detail:
Created Date:  2006-07-28     Completed Date:  2006-12-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101192000     Medline TA:  Eur J Cardiovasc Prev Rehabil     Country:  England    
Other Details:
Languages:  eng     Pagination:  625-32     Citation Subset:  IM    
Affiliation:
Department of Clinical Medicine, Cardiovascular and Immunological Sciences, University of Naples Federico II, Naples, Italy. giallauria@libero.it
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MeSH Terms
Descriptor/Qualifier:
Biological Markers / blood
Echocardiography, Doppler, Pulsed
Exercise / physiology*
Exercise Therapy / methods*
Female
Heart Ventricles / metabolism,  physiopathology,  ultrasonography
Humans
Male
Middle Aged
Myocardial Contraction / physiology
Myocardial Infarction / blood,  complications*,  physiopathology
Natriuretic Peptide, Brain / blood*
Treatment Outcome
Ventricular Dysfunction, Left* / blood,  etiology,  rehabilitation
Chemical
Reg. No./Substance:
0/Biological Markers; 114471-18-0/Natriuretic Peptide, Brain

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


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