Document Detail


Increased NT-pro-B-type natriuretic peptide independently predicts outcome following catheter ablation of atrial fibrillation.
MedLine Citation:
PMID:  19929271     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
AIMS: To investigate whether NT-proBNP before ablation treatment and after exercise testing has predictive information regarding the clinical outcome following pulmonary vein isolation in patients with atrial fibrillation (AF). METHODS: NT-proBNP analysis were obtained before the ablation (before and after exercise test), and repeated at 1, 3, and 12 months after the final procedure. RESULTS: A total of 51 patients were included. At study entry, the median NT-proBNP concentration was 14.0 pmol/L (quartiles: 8.0 and 27.0). After the exercise test, the mean NT-proBNP value increased from 13.0 pmol/L (quartiles: 7.5 and 26.0) to 15.0 pmol/L (quartiles: 9.0 and 34.0), p < 0.001. Following a maximum of two ablations, 22 patients were free of AF while 29 patients experienced recurrent AF. In patients with successful ablation, the mean NT-proBNP concentration at baseline was 10.0 pmol/L (quartiles: 7.0 and 22.2) compared to 22.0 pmol/L (quartiles: 12.0 and 34.5) in patients with ablation failure, p = 0.02. With respect to exercise testing, a trend towards a higher increases during exercise were seen in patients with recurrent AF compared to patients without: 2.0 pmol/L (quartiles 1.9 and 7.0) vs. 1.5 pmol/L (quartiles 0 and 3.0), p = 0.07. A baseline NT-proBNP concentration >15.0 pmol/L was found to be an independent predictor of ablation failure. CONCLUSION: A significantly lower NT-proBNP concentration at baseline and a trend towards a diminished increase during exercise was seen in patients successfully ablated for AF compared to patients with recurrent AF. A baseline NT-proBNP concentration <or=15 pmol/l independently predicts ablation success.
Authors:
Brian Nilsson; Jens Peter Goetze; Xu Chen; Steen Pehrson; Jesper Hastrup Svendsen
Publication Detail:
Type:  Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Scandinavian journal of clinical and laboratory investigation     Volume:  69     ISSN:  1502-7686     ISO Abbreviation:  Scand. J. Clin. Lab. Invest.     Publication Date:  2009  
Date Detail:
Created Date:  2009-12-17     Completed Date:  2010-02-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0404375     Medline TA:  Scand J Clin Lab Invest     Country:  England    
Other Details:
Languages:  eng     Pagination:  843-50     Citation Subset:  IM    
Affiliation:
Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen. brni@dadlnet.dk
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MeSH Terms
Descriptor/Qualifier:
Atrial Fibrillation / blood*,  complications,  surgery*
Catheter Ablation*
Exercise Test
Female
Heart Failure / blood,  complications
Humans
Male
Middle Aged
Natriuretic Peptide, Brain / blood*
Peptide Fragments / blood*
Recurrence
Treatment Outcome
Chemical
Reg. No./Substance:
0/Peptide Fragments; 0/pro-brain natriuretic peptide (1-76); 114471-18-0/Natriuretic Peptide, Brain

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


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