View clinical trials related to Heart Failure.
Filter by:Rationale. Chronic obstructive pulmonary disease (COPD) and heart failure (HF) coexist in approximately one third of patients presenting with one of these conditions. From a clinical standpoint, impaired tissue oxygen (O2) delivery stands as a common pathological mechanism of these cardiorespiratory diseases. Recent evidence suggest that muscle and cerebral blood flow and oxygenation are further impaired during exercise in patients with COPD-HF overlap compared to isolated diseases. However, it remains unknown whether impaired O2 delivery is associated with exaggerated manifestations of peripheral and central fatigue in COPD-HF overlap. In addition, improving cardiopulmonary interactions through non invasive positive pressure ventilation or through the addition of a hyperoxic gas mixture during exercise have been associated with enhanced cerebral and muscle O2 delivery and oxygenation in patients with COPD or HF. It is, therefore, conceivable that improved O2 delivery to these structures have beneficial influence on exercise capacity in patients with COPD-HF overlap due to less peripheral and central fatigue. Aims. To investigate the influence of impaired O2 delivery during exercise, and its alleviation with different interventions (non invasive positive pressure ventilation ± hyperoxia), on neuromuscular fatigue in patients with COPD-HF.
Study Description: Background: Well-known fact that the number of cardiovascular diseases is on the rise during influenza epidemic. It is conceivable that influenza may precipitate plaque rupture, increase cytokines with central roles in plaque destabilization and trigger the coagulation cascade. A number of studies have shown that the risk of cardiovascular complications (ACS, stroke, CHF decompensation, cardiac arrhythmias) seem to be reduced following influenza vaccination. The Influenza Vaccination After Myocardial Infarction study data published in September 2021 have demonstrated a significant decrease of mortality (by 40%) during 1 year of follow-up in patients with myocardial infarction (MI) who has been vaccinated during the first 72 hours. Objective: the objective is to find out whether influenza vaccination protects against cardiovascular events and death in ACS & CHF patients vaccinated during hospitalization Methods: Population: 400 patients aged 65 and older with acute coronary syndrome are randomized 1:1 and followed up via telephone calls and registries (AIS "Mortality"). Patients will be included in the study in cardiology departments № 1, 2, 3, 5, 6 of the State Budgetary Healthcare Institution "Samara Regional Clinical Cardiology Dispensary named after V.P. Polyakov" Intervention: Influenza vaccination. Control: group of unvaccinated patients. Planned study period is 1 year.
Indoor air pollution and fine mode particulate matter with an aerodynamic diameter smaller than 2.5 micrometers (PM2.5) is a major contributor to global morbidity and mortality, particularly due to cardiovascular disease. This project aims to demonstrate the efficacy, feasibility and effectiveness of portable air filters in improving indoor PM2.5 levels and improving functional capacity of heart failure patients with reduced ejection fraction in India. The findings from the project will add to existing knowledge of innovative and scalable strategies to improve environmental and cardiovascular health worldwide. The overall objective of this study is to demonstrate the efficacy, feasibility, and effectiveness of portable air filters in improving indoor PM2.5 levels and improving functional capacity of heart failure patients with reduced ejection fraction in India.
The ContraBand™ device is intended for treatment of heart failure patients who remain symptomatic despite the use of optimally tolerated guideline directed medical therapy. ContraBand™ is a transcatheter constriction device which is implanted in the left and right branch pulmonary arteries, causing a local reduction in the internal diameters of these arteries, and resulting in an elevation in systolic right ventricular pressure. This may result in repositioning the interventricular septum to a more normal anatomical position, and supporting it with a "counter-pressure" during systole of the left ventricle. This study is a first-in-human, early feasibility, multi center, prospective, interventional, open-label, single-arm study.
Heart failure with reduced ejection fraction (HFrEF) is a major cause of mortality in United States. Aging is a major risk factor for adverse outcomes associated with HFrEF, with majority of the patient's over the age of 50, continuing to experience symptoms, reduced exercise capacity and poor quality of life. We have previously demonstrated that low level transcutaneous electrical stimulation of the vagus nerve at the tragus (LLTS) suppresses inflammation in patients with atrial fibrillation and diastolic dysfunction and improved endothelial dysfunction in patients with chronic heart failure. The overall objective of this proposal is to examine the effects of LLTS on heart failure symptoms, exercise capacity and quality of life in patients with HFrEF and simultaneously determine the impact of LLTS on the suppression of inflammation and improvement in endothelial function. Our specific aims include: 1. To examine the medium term effect of intermittent (1 hour daily for 3 months) LLTS on exercise capacity and quality of life, related to sham stimulation, in patients with HFrEF, 2. To determine the effects of medium-term LLTS on sympathovagal/autonomic balance (assessed by heart rate variability) and systemic inflammation in patients with HFrEF and 3. To determine the effects of medium-term LLTS on endothelial function in patients with HFrEF. The proposed proof-of-concept human studies will provide the basis for the design of further human studies using LLTS among larger populations with HFrEF. In light of the increasing number of elderly patients who continue to experience HFrEF symptoms, recognized is a key point of interest in this funding mechanism, and the suboptimal success of the currently available treatment options to ameliorate the problems mentioned above, an alternative novel approach such as LLTS has the potential to impact clinical practice and improve health outcomes among the large number of patients. It is anticipated that these investigations will contribute to a broader understanding of the role of autonomic imbalance, inflammation and endothelial dysfunction in the pathogenesis of HFrEF and how its inhibition can be used to provide therapeutic effects. Moreover, it is anticipated that a better understanding of how modulation of autonomic tone, inflammation and endothelial function affects one of the hallmarks of HFrEF will lead to the development of normal nonpharmacological and pharmacological approaches to treat this disease.
Evaluate PVF alterations in patients with ADHF at arrival and after decongestive treatment
Heart failure has a high morbidity and mortality because the heart is one of the least regenerative organs in the human body. Drug treatments for heart failure manage symptoms but do not restore lost myocytes. Cellular replacement therapy is a potential approach to repair damaged myocardial tissue, restore cardiac function, which has become a new strategy for the treatment of heart failure. The purpose of this study is to assess the safety and efficacy of intramyocardial delivery of cardiomyocytes at the time of coronary artery bypass grafting in patients with chronic heart failure.
The SYNAPSE trial is designed to study the effects of an individualized home-based cognitive training program on cognitive functions in heart-failure patients.
In this study, the investigators will determine the impact of a high calorie and high protein nutrition supplementation strategy on quality of life in participants with advanced heart failure. The investigators hypothesize that participants with advanced heart failure who receive the high calorie high protein nutrition supplementation strategy will experience an improvement in quality of life compared to those patients that receive usual care.
Rationale: Perirenal adipose tissue (PRAT) thickness has been associated to worsening renal function and hypertension. The role of PRAT in heart failure with a preserved ejection fraction (HFpEF) has never been established. The hypothesis of this study is that in patients with HFpEF the diameter of PRAT is increased compared with age, sex and BMI matched controls. Objective: The main objective is to determine whether PRAT thickness is increased in patients with HFpEF. Secondary objectives are to determine whether PRAT thickness is correlated to whole kidney perfusion, renal venous flow patterns, markers of glomerular and tubular damage and dysfunction, NT pro-BNP, renin and aldosterone. Lastly, this study aims to determine whether these correlations are similar for men and women with HFpEF. Study design: the proposed study is a single center, cross-sectional observational case-control study, including 30 HFpEF patients and 30 healthy controls. Study population: Adult patients with HFpEF with a body mass index (BMI) of <25.0 or >30.0 and healthy age, sex and BMI-matched controls. Intervention (if applicable): Not applicable. Main study parameters/endpoints: The primary endpoint will be the difference in diameter and volume of perirenal adipose tissue measured on dynamic contrast computed CT (DCE-CT) in patients with HFpEF vs. healthy age, sex and BMI matched controls. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: Participating subjects will be asked to visit the University Medical Center Groningen (UMCG) twice (once for screening, once for testing visit). During the testing visit they will undergo intravenous contrast abdominal CT, renal sonography, blood drawing and urine collection. Risks associated with these procedure are very limited, rare and include bleeding and infection for venapunction, and contact dermatitis for ultrasound gel. Adverse events for CT include hypersensitivity reactions to contrast agent, which include skin rash, hypotension and bronchospasm.