Document Detail


Plasma brain natriuretic peptide levels indicating thromboembolism in very elderly patients with non-valvular atrial fibrillation.
MedLine Citation:
PMID:  17721026     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Assessment of left atrial (LA) function by transesophageal echocardiography is useful for detecting patients with a high risk thromboembolism secondary to atrial fibrillation (AF). A recent study showed that the atrium is the main source of brain natriuretic peptide (BNP) in AF patients without overt heart failure. The purpose of this study was to assess the possible relationship between LA function and plasma BNP levels in very elderly patients with non-valvular AF. METHODS AND RESULTS: Seventy-four consecutive patients with chronic non-valvular AF (aged, 82+/-6 years) underwent transthoracic and transesophageal echocardiography and measurement of plasma BNP. Thirteen AF patients who had a history of cerebral embolism or echocardiographic evidence of thrombus (TE+ group) were compared with 61 AF patients who had no such complications (TE- group). The TE+ group demonstrated a lower LA appendage (LAA) velocity and higher plasma BNP level than the TE- group. Assessment of variables by multiple logistic regression analysis revealed that BNP was a significant predictor of thromboembolism. There was a significant negative correlation between the plasma BNP level and the LAA peak flow velocity. CONCLUSIONS: The present findings would suggest the usefulness of measuring plasma BNP to detect very elderly non-valvular AF patients at high risk for thromboembolism.
Authors:
Daisuke Watanabe; Kazuhiko Shizuka; Shunichi Koyama; Toshihiko Iwamoto
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Circulation journal : official journal of the Japanese Circulation Society     Volume:  71     ISSN:  1346-9843     ISO Abbreviation:  Circ. J.     Publication Date:  2007 Sep 
Date Detail:
Created Date:  2007-08-27     Completed Date:  2007-12-28     Revised Date:  2008-03-03    
Medline Journal Info:
Nlm Unique ID:  101137683     Medline TA:  Circ J     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  1446-51     Citation Subset:  IM    
Affiliation:
Department of Geriatric Medicine, Tokyo Medical University, Tokyo, Japan. d_wata@tokyo-med.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Aged
Aged, 80 and over
Atrial Fibrillation / blood*,  complications,  therapy
Echocardiography, Transesophageal
Female
Health Services for the Aged*
Humans
Intracranial Embolism / blood*,  diagnosis,  etiology,  therapy
Male
Natriuretic Peptide, Brain / blood*
Predictive Value of Tests
Risk Factors
Chemical
Reg. No./Substance:
114471-18-0/Natriuretic Peptide, Brain
Comments/Corrections
Comment In:
Circ J. 2008 Jan;72(1):170; author reply 171   [PMID:  18159122 ]

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


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