View clinical trials related to Heart Failure.
Filter by:Heart failure (HF) is a complex condition resulting from structural or functional heart diseases that impair the ability of the heart to fill with or pump out blood. The main manifestations of HF are shortness of breath and tiredness which may limit the ability to exercise or perform simple daily physical activities such as walking. Heart disease leading to HF is associated with reduced muscle mass and reduced strength and low blood levels of testosterone; a hormone normally produced by the human (male and female) body. Recent studies have shown improvements of symptoms and ability to exercise in patients with heart failure receiving testosterone. This is a placebo controlled study to determine the efficacy and safety of low dose testosterone (300 and 450 microgram/day) delivered by a transdermal system (patch) in women with significant HF.
The primary purpose of the LSR of ACUITY Spiral is to evaluate and report on the long-term performance of the ACUITY Spiral Left Ventricular Lead.
A diet rich in Omega-3 (fish oil) reduces plasma triglycerides and the risk for ischemic heart disease. Recently, a large trial evaluating treatment with Omega 3 in heart failure patients suggested that omega 3 may lower the risk of death from CHF. The mechanism of this potential benefit is not well understood. Methods: Forty patients will be enrolled in the study. Twenty patients will receive Omega 3 (lovaza 4 gm a day) and 20 patients will receive placebo. All subjects will have assessment of their exercise capacity and blood vessel function before and after an 8 week treatment period. About 4 table spoons of blood will be drawn throughout the study. Expected results: The investigators believe that omega 3 may improve the ability to exercise and improve blood vessel function.
Cardiac resynchronization therapy (CRT) has shown improvement in mortality and morbidity in patients with left ventricular systolic dysfunction and congestive heart failure. Additionally in CRT patients it has been demonstrated that optimizing paced/sensed atrioventricular (AV) and interventricular (V-V) timings leads to immediate hemodynamic benefits and further improves cardiac function. Recent studies have shown that optimal paced/sensed AV and V-V delays change over time, which raises the question of how often optimization should be repeated. Thus, frequent re-optimization of these delays might be beneficial for maintaining significant improvement of cardiac function. However, it remains to be evaluated whether timing optimization may be beneficial on patients who have received CRT for a number of years and are now having the CRT device replaced.
Left ventricular assist devices (LVADs) are one treatment option for people with congestive heart failure. This study will evaluate the safety of injecting mesenchymal precursor cells (MPCs) into the heart during LVAD implantation surgery and examine if injecting MPCs into the heart is effective at improving heart function.
The purpose of this prospective, randomized, open-label study is to compare two diuretic strategies in patients with acute decompensated heart failure (ADHF): the addition of an oral thiazide diuretic to intravenous bolus (IVB) loop diuretic will be compared to transition from IVB to continuous infusion (CI) loop diuretic.
Heart failure is a major health problem in Canada. Recent advances in medical and device therapy have helped to reduce the morbidity and mortality of patients with this problem. Among these treatments, cardiac resynchronization therapy (CRT) has very recently been shown to be effective to improve functional class, quality of life and exercise tolerance of the patients with the most severe symptoms of heart failure and a prolonged duration of the QRS on the 12-lead Electrocardiography (ECG).
The objective of this study is to compare two different strategies of disease management in heart failure patients treated with cardiac resynchronization therapy devices 1. Remote monitoring with CareLink Network System 2. Standard management of the disease by means of scheduled routine in-patient follow-ups; and to demonstrate that the remote monitoring strategy is superior to the standard strategy, both in terms of clinical effectiveness and total healthcare system utilization.
The purpose of this study is to examine the safety and potential effectiveness of a new surgical procedure for treating heart failure. The experimental treatment is performed during standard coronary artery bypass graft (CABG) surgery, and applies radiofrequency energy to heat a portion of the damaged heart muscle. The tissue heating reduces the enlarged heart of patients suffering from ischemic heart failure, and may result in the heart pumping blood more efficiently, thereby improving the functional status of the patient.
The main purpose of this study is to examine the effect of add-on therapy with the direct renin inhibitor Aliskiren in comparison to placebo on renal blood flow in patients with heart failure and reduced renal function. - Primary outcome measure: change in renal blood flow at 6 months - Secondary outcome measures: changes in renal function, N-terminal pro Brain natriuretic peptide, left ventricular function, blood pressure and neurohormones