Active clinical trials for "Heart Failure"

Rationale: Prolongation of the electrocardiographic PR interval (PR interval > 200ms; also known as first-degree atrioventricular block) is frequently encountered in clinical practice and is generally considered as a benign sign. However, there is increasing evidence that a prolonged PR interval results in poor hemodynamic performance with elevated left ventricular (LV) end-diastolic pressures evidenced by diastolic mitral regurgitation. Previous studies have also associated a prolonged PR interval with a substantially increased risk of future atrial fibrillation (AF) and pacemaker-implantation, and increased risk of heart failure (HF) hospitalization and death. These risks stress the importance of proper atrioventricular (AV) coupling. Shortening of the PR interval may be especially important in heart failure patients and can be obtained by atrioventricular pacing. A possible adverse effect of ventricular pacing is that it results in ventricular dyssynchrony which may lead to worsening cardiac function. This effect may be prevented by applying atrio-biventricular pacing. Data from several previous (sub)studies have suggested this. Objective: The purpose of this study is to investigate the acute hemodynamic effects of restoration of atrioventricular coupling by atrio-biventricular pacing in patients with heart failure and prolonged PR interval. Study design: This study will be a multi-center, exploratory, prospective interventional, nonrandomized acute hemodynamic study, using patients as their own controls. Study population: The study will enroll 26 patients with symptomatic heart failure, reduced left ventricular ejection fraction (LVEF) (< 35%) and prolonged PR interval (>230ms), but without seriously prolonged QRS duration (<150ms) or left bundle branch block (LBBB) QRS pattern, who are candidates for an implantable cardioverter defibrillator (ICD) device according to current guidelines. Main study parameters/endpoints: The main study parameter will be the acute hemodynamic change in left ventricular stroke work (SW) during atrioventricular optimization by atrio-biventricular pacing. Secondary parameters will be the acute hemodynamic changes in left ventricular dP/dt|max and left ventricular stroke volume (SV) by invasive measurements and in left ventricular stroke volume, diastolic mitral regurgitation and left ventricular diastolic filling time by echocardiography during atrioventricular optimization by atrio-biventricular pacing. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: The patients are candidates for an ICD device in whom cardiac resynchronization therapy (CRT) can be considered according to current guidelines. Patients in the present study will receive a CRT-defibrillator (CRT-D). The risk and/or complications of the CRT-D implantation are not additional for this study. After the implantation, acute invasive hemodynamic measurements will be performed with a pressure-volume catheter, which is inserted via the femoral artery and adds approximately 30 minutes to the standard procedure. An extra radiation dose of approximately 50mGy is needed to place the pressure volume catheter in the LV cavity. Local vascular complications of femoral artery puncture like bleeding or damage to the vessel wall may occur but are rare. The non-invasive echocardiographic protocol one to two weeks after implantation will add approximately 45 minutes to the routine outpatient clinic visit. The patients do not have to visit the clinic outside the routine outpatient clinic visits before and after a CRT-D implantation. The patients will have the potential direct benefit from the procedure, by finding the patient's specific optimal (atrioventricular) settings and thereby reducing above described risks of a prolonged PR interval. In case of a worse hemodynamic performance due to the procedure, the CRT-D will be programmed to back up pacing and there is no harm for the patient outside the above subscribed extra measurements.

To Identify the role of aldosterone antagonist in patients of heart failure with preserved ejection fraction. Portray the health profile of heart failure patients admitted in internal medicine department either heart failure with reduced ejection fraction or heart failure with preserved ejection fraction. To compare between patients of right and left sided heart failure by biomarkers and parameters of echocardiographgy Vitamin D and its relation to cardiovascular disease and heart failure.

The investigators hypothesize that the airway pressures generated by High Flow Oxygen Therapy could have a beneficial impact in patients with heart failure, particularly by lowering capillary pulmonary arterial pressures. However, results compared to Non-Invasive Ventilation are difficult to predict due to the lack of data in the literature.

The purpose of this study is to compare the changes in B-type Natriuretic Peptide (BNP) and amino-terminal fragment of proBNP (NT-proBNP) in outpatients managed in the heart failure (HF) clinic initiated on the Angiotensin Receptor Neprilysin Inhibitor (Entresto) and directly compare the prognostic values of BNP and NT-proBNP in patients admitted with acute decompensated HF.

Sacubitril/valsartan reduces the risk of cardiovascular mortality among patients with heart failure with reduced ejection fraction, and has been recently indicated as a new treatment option with a strong level of recommendation (class I, level of evidence B) in the main international guidelines. Cardiovascular disease (CVD) is the most common cause of death in end stage renal disease (ESRD) patients undergoing hemodialysis (HD). Hence, treatments to improve mortality and specifically cardiovascular outcomes in this population are greatly needed. So far, no data available about the efficacy and safety of sacubitril/valsartan in ESRD patients undergoing hemodialysis, although this medication was noted to be effective and comparably well tolerable in those with estimated glomerular filtration rate(eGFR) 20 to 60 mL/min/1.73 m2 in the United Kingdom Heart and Renal Protection-III trial. The purpose of this open label, randomized controlled study with prospective data collection is to assess the efficacy and safety of sacubitril/valsartan in maintenance hemodialysis patients with heart failure.

This proof-of-concept study will evaluate the feasibility of the Eko DUO to measure signals relevant to heart failure (HF) decompensation, as well as the feasibility to develop an algorithm to model hemodynamic filling pressures in HF patients under active decompensation in a cardiac intensive care unit (CICU) or coronary care unit (CCU). To also assess the performance of the Eko CORE to detect signals of an HF event, this study will also take heart and lung sound measurements with the Eko CORE.

The main objective of the study is to determine if a diuretic adaptation protocol in the decompensation of chronic heart failure is more effective but also safer than the current non-protocolized practice.

Evaluate efficacy and safety of continuous infusion of IV Frusemide compared to IV shots in acute decompensated heart failure ADHF Evaluate superiority of time-adjusted metolazone to morning frusemide IV shots compared to irrespective administration (at random times) to overcome diuretic resistance

Beta blockers have been used to reduce the mortality and heart failure rehospitalization in heart failure with reduced ejection fraction (HFrEF) patients in addition to ACEI/ARB, MRA, ivabradine and ARNI. However, the effective and safe medical therapy is not well established in heart failure with preserved ejection fraction (HFpEF) yet. Recent meta-analysis showed that beta blockers may also be beneficial for reducing the mortality and heart failure rehospitalization in HFpEF like HFrEF. However, the clinical effect and safety of carvedilol have been largely unknown in HFpEF. Therefore, CAYMUS HFpEF is the exploratory study to assess the change of surrogate markers (NTproBNP, hsTn) when treated with carvedilol SR vs. placebo in HFpEF patients

The aim of the work is to Evaluate the efficacy, quality of life and safety of early addition of ivabradine to B-blocker in reduced EF heart failure patients after acute decompensation compared to the standard treatment.