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Correlation between plasma N-terminal pro-brain natriuretic peptide levels and changes in New York Heart Association functional class, left atrial size, left ventricular size and function after mitral and/or aortic valve replacement.
MedLine Citation:
PMID:  22871614     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
BACKGROUND AND OBJECTIVES: Elevated plasma brain natriuretic peptide (BNP) levels have been demonstrated in patients with chronic valvular disease. We designed the present study to assess whether changes in N-terminal pro-brain natriuretic peptide (NT-proBNP) levels after mitral, aortic and double mitral and aortic valve replacement reflect changes in heart failure (HF) symptoms including New York Heart Association (NYHA) class and changes in left atrium (LA) size, left ventricle (LV) size and LV function.
DESIGN AND SETTING: A prospective observational nonrandomized study among consecutive patients undergoing mitral and/or aortic valve replacement in our center.
PATIENTS AND METHODS: The study population consisted of 24 patients (mean [SD] age of 55.3 [16.2] years, 58% were males) who underwent surgical mitral valve replacement (12 patients), aortic valve replacement (8 patients) and combined mitral and aortic valve replacement (4 patients). NT-proBNP measurements, transthoracic echocardiography and NYHA class assessments were performed before and 6 months after surgery.
RESULTS: The decrease in NT-proBNP was associated with decrease in left atrial dimension (r = 0.73, P < .002), LV end-diastolic dimension (r=0.65, P=.001), LV end-systolic dimension (r=0.53, P=.036), and increase in ejection fraction (r=-0.65, P=.001) after 6 months postoperatively. Furthermore, a decreasing NT-proBNP was associated with improvement in NYHA class.
CONCLUSIONS: NT-proBNP levels after mitral, aortic and double valve replacement correlates with changes in HF manifestations as well as changes in LA size and LV dimension and function. Thus, we hypothesize that interval measurement of the NT-proBNP level at clinic visits can allow early detection of any clinical deterioration as well as the possibility of assessment of the long-term outcome of those patients.
Authors:
Abdelfatah Elasfar
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Annals of Saudi medicine     Volume:  32     ISSN:  0975-4466     ISO Abbreviation:  Ann Saudi Med     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-08-08     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8507355     Medline TA:  Ann Saudi Med     Country:  India    
Other Details:
Languages:  eng     Pagination:  469-72     Citation Subset:  IM    
Affiliation:
Dr. Abdelfatah Elasfar, Cardiology Department, Prince Salman Heart Center, King Fahad Medical City, Riyadh, Saudi Arabia, elasfar_egy@hotmail.com.
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