Document Detail


Prognostic value of homocysteinemia in patients with congestive heart failure.
MedLine Citation:
PMID:  16776625     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Elevated plasma homocysteine levels are associated with increased risk of vascular disease and of congestive heart failure (CHF), with a relationship between homocysteine values and disease severity. Hyperhomocysteinemia is a risk factor for cardiac dysfunction. In this study, the predictive value of elevated homocysteine levels was investigated in the prognosis of ischemic and non-ischemic CHF. METHODS: A total of 159 patients with CHF, 89 with non-ischemic and 70 with ischemic CHF (83% males, mean age 62 years, mean ejection fraction 27%), and 119 controls (79% males, mean age 59.8 years) had fasting blood samples taken to measure plasma homocysteine, vitamin B(12) and folate levels. Coronary angiography was performed for all patients. The mean duration of follow-up was 49.6+/-36.7 months. RESULTS: As in other studies, the mean level of homocysteinemia was significantly higher in the CHF group (15.80 micromol/L) than in the control group (10.90 micromol/L) (p=0.001) whatever the etiology (non-ischemic, 16.11+/-6.84 micromol/L; ischemic, 15.41+/-6.45 micromol/L). This result was observed without vitamin deficiency, but in patients, the mean creatinine value was moderately higher than in controls. We found a positive correlation between plasma homocysteine levels and New York Heart Association (NYHA) classification, creatinine and age. Moreover, hyperhomocysteinemia appears to be a powerful predictive factor of mortality in CHF patients (relative risk of death, 4.23; p=0.0003). In the follow-up of this study, 41.5% of patients with homocysteinemia >17 micromol/L died vs. 21.3% of patients with levels <17 micromol/L. In multivariate analysis, when homocysteine levels were adjusted for a second parameter (age, NYHA, creatinine, diabetes), the risk of death remained significant after each adjustment. CONCLUSIONS: Elevated homocysteine levels observed in CHF patients, whatever the etiology of their heart disease (ischemic or non-ischemic), were correlated with the severity of the disease. Hyperhomocysteinemia appears to be a predictive factor of mortality in CHF patients.
Authors:
Pierre Gibelin; Stephanie Serre; Mirande Candito; Bakhouche Houcher; Frederic Berthier; Marcel Baudouy
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Clinical chemistry and laboratory medicine : CCLM / FESCC     Volume:  44     ISSN:  1434-6621     ISO Abbreviation:  Clin. Chem. Lab. Med.     Publication Date:  2006  
Date Detail:
Created Date:  2006-06-16     Completed Date:  2006-09-26     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9806306     Medline TA:  Clin Chem Lab Med     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  813-6     Citation Subset:  IM    
Affiliation:
Cardiology Department, Hôpital Pasteur, Nice, France. gibelinp@cote-dazur.com
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MeSH Terms
Descriptor/Qualifier:
Adult
Female
Heart Failure / blood*,  classification,  pathology*
Homocysteine / blood*
Humans
Male
Middle Aged
Prognosis
Survival Rate
Chemical
Reg. No./Substance:
454-28-4/Homocysteine

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


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