European journal of heart failure
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Eur. J. Heart Fail. · Jun 2011
Randomized Controlled Trial Multicenter Study Comparative StudyPreventing ventricular dysfunction in pacemaker patients without advanced heart failure: results from a multicentre international randomized trial (PREVENT-HF).
Previous experimental and clinical studies have consistently suggested that right ventricular (RV) apical pacing has important adverse effects. Ventricular pacing (VP), however, is required, and cannot be reduced in many patients with atrioventricular (AV) block. The PREVENT-HF study was an international randomized trial that explored differences in left ventricular (LV) remodelling during RV apical vs. biventricular (BIV) pacing in patients with AV block. ⋯ This study did not demonstrate significant LV volume differences >12 months between RV apical and BIV pacing for AV block. Thus, BIV pacing cannot be recommended as a routine treatment for AV block in these patients. However, the results encourage and inform the design of subsequent larger trials with higher power for detecting small volume changes. ClinicalTrials.gov Identifier: NCT00170326.
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Eur. J. Heart Fail. · Jun 2011
Randomized Controlled TrialThe toll-like receptor 4-antagonist eritoran reduces murine cardiac hypertrophy.
Toll-like receptor 4 (TLR4) recognizes lipopolysaccharides and endogenous ligands released after organ injury. Deficiency of TLR4 attenuates the development of left ventricular hypertrophy after transverse aortic constriction (TAC) in mice. We hypothesized that application of the TLR4 antagonist eritoran may also reduce cardiac hypertrophy after TAC surgery. ⋯ Application of the TLR4 antagonist eritoran attenuates the development of cardiac hypertrophy possibly by a reduction in inflammatory and increase in anti-inflammatory cytokines.
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Eur. J. Heart Fail. · May 2011
Prognostic importance of natriuretic peptides and atrial fibrillation in patients receiving cardiac resynchronization therapy.
The aim of this study was to investigate the prognostic value of natriuretic peptides and atrial fibrillation (AF) on response to cardiac resynchronization therapy (CRT) and mortality. ⋯ In patients treated with CRT, lower ANP and larger left ventricular end-systolic volume were independent predictors of response. New-onset AF, permanent AF, and NT-proBNP were independently associated with increased all-cause mortality.
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Eur. J. Heart Fail. · Feb 2011
Prognostic value of serial B-type natriuretic peptide measurement in asymptomatic organic mitral regurgitation.
Optimal timing of surgery is crucial in mitral regurgitation (MR) to avoid excess mortality and morbidity. The role of brain-type natriuretic peptide (BNP) in this setting remains controversial. We evaluated the value of serial BNP measurements for early prediction of deterioration in asymptomatic MR. ⋯ Brain natriuretic peptide and NT-proBNP independently predict outcome in asymptomatic MR. Serial measurements may help to improve timing of surgery. Low plasma levels with their high negative predictive values appear to be particularly helpful by identifying low-risk individuals.