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Ongoing myocardial damage in patients with heart failure and preserved ejection fraction.
MedLine Citation:
PMID:  22819040     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: The relationship between ongoing myocardial damage and heart failure with preserved left ventricular systolic function (HF-PEF) is still unclear. To investigate this relationship, we measured the cardiac-specific cytosolic marker, heart-type fatty acid binding protein (H-FABP), and a myofibrillar component (troponin T), and analyzed clinical outcomes. METHODS AND RESULTS: Consecutive heart failure patients (n=151) with echocardiographic left ventricular ejection fraction >50% were prospectively enrolled. The cut-off values for myocardial membrane injury (H-FABP >4.3ng/mL) and myofibrillar injury (troponin T >0.01ng/mL) were defined using receiver operating characteristic curves. Myocardial membrane injury was observed more frequently than myofibrillar injury (41% vs. 26% of patients, p<0.05). Patients were followed up for a median of 694days, with the end-points being cardiovascular death or re-hospitalization. By multivariate analysis, the serum H-FABP level was an independent predictor of cardiovascular events (hazard ratio 1.165 per 1ng/mL increase, 95% confidence interval 1.034-1.314, p=0.012). CONCLUSIONS: Latent myocardial injury was frequently observed in patients with HF-PEF. The circulating H-FABP level was an independent predictor of subsequent cardiovascular events.
Authors:
Daisuke Kutsuzawa; Takanori Arimoto; Tetsu Watanabe; Tetsuro Shishido; Takuya Miyamoto; Takehiko Miyashita; Hiroki Takahashi; Takeshi Niizeki; Yasuchika Takeishi; Isao Kubota
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-19
Journal Detail:
Title:  Journal of cardiology     Volume:  -     ISSN:  1876-4738     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8804703     Medline TA:  J Cardiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Japanese College of Cardiology. Published by Elsevier Ltd. All rights reserved.
Affiliation:
The Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan.
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