Document Detail


The effects of adding torasemide to standard therapy on peak oxygen consumption, natriuretic peptides, and quality of life in patients with compensated left ventricular systolic dysfunction.
MedLine Citation:
PMID:  20525705     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
AIMS: Diuretics, when used to treat congestion in patients with chronic heart failure, improve symptoms and, perhaps, prognosis but little information is available to guide their use in patients with left ventricular systolic dysfunction (LVSD) who are not congested. Chronic diuretic therapy causes persistent and potentially harmful neuroendocrine activation. Alternatively, in patients in whom neuroendocrine activation is blocked with angiotensin-converting enzyme (ACE)-inhibitors and beta-blockers, diuretics may be beneficial by decreasing preload and afterload and preventing congestion. We aimed to assess the effect of the loop diuretic, torasemide on quality of life, and surrogate markers of prognosis when given to patients with LVSD who were not clinically congested and who were optimally treated with ACE-inhibitors (or angiotensin receptor antagonists) and beta-blockers.
METHODS AND RESULTS: Thirty patients with stable LVSD who had no clinically detectable fluid overload were randomized to receive either torasemide 5 mg daily or placebo for 3 months (Phase A), and after a washout phase of 2 months, cross-over was performed for 3 months (Phase B). Diuretic therapy did not cause significant change in peak VO(2), mean N-terminal pro-hormone brain natriuretic peptide (NT-proBNP) levels, or measures of quality of life compared with placebo. Diuretic therapy did however lead to significant fall in systolic and diastolic blood pressures and increase in plasma renin levels compared with placebo.
CONCLUSION: Diuretic therapy with torasemide is not superior to placebo in improving peak VO(2) or reducing NT-proBNP levels in patients with left ventricular dysfunction who are not clinically congested.
Authors:
Sanjay Gupta; Carolyn Waywell; Nandkumar Gandhi; Nigel Clayton; Brian Keevil; Andrew L Clark; Leong L Ng; Nicholas Brooks; Ludwig Neyses
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't     Date:  2010-06-04
Journal Detail:
Title:  European journal of heart failure     Volume:  12     ISSN:  1879-0844     ISO Abbreviation:  Eur. J. Heart Fail.     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-06-25     Completed Date:  2010-10-01     Revised Date:  2011-06-08    
Medline Journal Info:
Nlm Unique ID:  100887595     Medline TA:  Eur J Heart Fail     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  746-52     Citation Subset:  IM    
Affiliation:
Department of Cardiology, Wythenshawe Hospital, Manchester, UK. sanjay.gupta.uk@googlemail.com
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aged, 80 and over
Blood Pressure / drug effects
Cross-Over Studies
Diuretics / administration & dosage,  therapeutic use*
Double-Blind Method
Drug Therapy, Combination
Exercise Test
Female
Heart Failure / drug therapy*,  physiopathology
Heart Rate / drug effects
Humans
Intention to Treat Analysis
Middle Aged
Natriuretic Peptide, Brain / blood*
Oxygen Consumption / drug effects*
Peptide Fragments / blood*
Prognosis
Quality of Life
Renin / blood
Retrospective Studies
Sulfonamides / administration & dosage,  therapeutic use*
Systole / physiology
Ventricular Dysfunction, Left / drug therapy*,  physiopathology
Chemical
Reg. No./Substance:
0/Diuretics; 0/Peptide Fragments; 0/Sulfonamides; 0/pro-brain natriuretic peptide (1-76); 114471-18-0/Natriuretic Peptide, Brain; 56211-40-6/torsemide; EC 3.4.23.15/Renin
Comments/Corrections
Comment In:
Eur J Heart Fail. 2010 Jul;12(7):649-52   [PMID:  20576834 ]

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


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