View clinical trials related to Heart Failure.
Filter by:This study will examine the additional clinical benefit conferred by multipoint pacing (MPP) compared to standard CRT over a period of 3 months. Patients will be randomized to MPP ON vs. OFF and followed for a total of 6 months. This includes two crossover periods for each pacing modality (MPP on vs. off).
The purpose of this CorMatrix P-ECM safety and feasibility study is to evaluate the safety and functional effect of the CorMatrix P-ECM.
Transient receptor potential vanilloid 4 (TRPV4) channel blockade may be promising in the treatment of pulmonary oedema and dyspnoea in heart failure (HF) and acute decompensated heart failure (ADHF) patients by re-establishing the alveolar septal barrier. Dynamic contrast enhanced (DCE) Magnetic Resonance Imaging (MRI) is an established technique for assessing changes in vascular permeability and interstitial water volume. The aim of this study is to establish the potential utility of DCE-MRI as a novel endpoint for dose ranging and proof of mechanism studies of TRPV4 blockers. The DCE-MRI markers of vascular permeability and pulmonary oedema will be measured in subjects with HF (group 2) and healthy volunteers (HV) (group 1) at rest to determine if there is a difference between the two populations. Apart from this, exercise induced changes relative to rest in interstitial volume and exchange rate will be evaluated in both HV and subjects with HF. Additionally, the capability of DCE-MRI to detect changes in interstitial lung fluid in patients with acute decompensated heart failure (ADHF) (group 3) will be investigated. DCE-MRI markers of pulmonary oedema will be assessed when patients are initially hospitalized with ADHF and subsequently after receiving standard of care treatment to determine whether differences can be detected by this methodology.This study will enrol a sufficient number of subjects to have at least 24 subjects in Group 1 and 2 (group 1:12 HV and group 2: 12 subjects with HF) and atleast 5 subjects in Group 3. For each subject, the MRI data must be of sufficient quality to enable DCE-MRI modelling from 2 Sessions. For group 1 and 2, the subjects will have screening visit and 3 MRI sessions. For the first scanning session, subjects will undergo the baseline procedure. The second imaging session will occur approximately one week later to measure within subject variability. A third imaging session (which will be conducted in 2 visits) will incorporate a bicycle exercise challenge prior to the MRI scan, and this third scan will be performed approximately one to three days after the second imaging session. For group 3: Screening will occur during hospitalization for eligibility. Session 1of MRI will be conducted while the subject is still hospitalized. Session 2 will be conducted within 4 weeks of the first scan, when the signs of pulmonary oedema are considered to be resolved. If a subject's pulmonary oedema has not resolved at Session 2, then the subject will be not be scanned by MRI at Session 2 and will be brought back for Session 3 up to 4 weeks after Session 2 for their second MRI.
The purpose of this study is to evaluate the efficacy and safety of Shenfu Zhusheye in patients with acute heart failure.
Heart failure is the principle cause of hospitalisation for people over 65. the assumption is that a system of home based telemonitoring can reduce the rate of unscheduled hospitalisation or rehospitalisation for heart failure (compared to a care package alone), This randomised controlled pilot study should assess the feasibility in terms of patient inclusion and follow-up.
This pilot study proposes to perform measurements of approved thoracic impedance technology that will help answer questions in patients with decompensated heart failure.
Sleep disordered breathing is very common in patients with chronic heart failure with reported prevalence rates of 50-75%. Adaptive Servo-Ventilation (ASV) can be used to treat sleep apnea in these patients. This is an observational study to document changes in respiratory parameters in HF patients using ASV for a period of 12 months.
Although inotropes have a favorable effect on central hemodynamics in patients with heart failure, their effect on renal hemodynamics is incompletely defined. The purpose of this study is to evaluate the efficacy of a 75 min intravenous infusion of levosimendan compared to a 75 min infusion of dobutamine on renal hemodynamics and function in patients with chronic heart failure and signs of cardiorenal syndrome. The investigators hypothesis is that patients treated with levosimendan will show greater increases in renal blood flow and glomerular filtration rate (GFR) than those treated with dobutamine.
Heart failure is the most costly diagnosis in the Medicare population. Clinical depression is strikingly common in heart failure patients, and not only diminishes their quality of life, but also is associated with a markedly increased risk of hospitalization or death. This study is designed to further our understanding of the behavioral and biological effects of depression in patients with heart failure, so that appropriate treatments can be developed.
Hyperuricemia is a very common finding in patients with heart failure. It is usually related to diuretic use and deteriorated renal function. The recently evidence showed that prednisone and allopurinol may have similar effect on uric acid (UA) lowering in symptomatic heart failure patients with hyperuricemia, but prednisone may be superior over allopurinol in renal function improvement. Thus the investigators design this randomized head to head study to test their hypothesis that prednisone is superior over allopurinol in renal function improvement despite their similar effect on UA lowering in heart failure patients with hyperuricemia.