search

Active clinical trials for "Heart Failure"

Results 1491-1500 of 4671

Cardiac Resynchronisation Therapy Versus Rate-responsive Pacing in Heart Failure With Preserved...

Diastolic Heart Failure

Half of patients with heart failure have normal heart pumping function (Heart failure with Preserved Ejection Fraction, HFpEF), most commonly characterised by breathlessness on exercise. A number of mechanisms are responsible, but frequently patients are unable to raise their heart rate on exercise. This can be treated by a 'rate-responsive pacemaker' (RRP), which detects exercise and increases the heart rate accordingly. Some beneficial effects on echocardiographic parameters have been reported with exercise programmes. However, evidence based treatment options are limited in this group and therapy mainly relies on water tablets and treatment of blood pressure. Cardiac resynchronisation therapy (CRT) is a technique using specialised 'biventricular' pacemakers that is well established in heart failure with reduced pump function. Patients who respond to this treatment have lower risk of death and hospitalisation and usually feel better. CRT is not currently used in HFpEF. The PROSPECT trial showed that some patients with relatively preserved heart function exhibited similar benefits to those with poor pump function, but this has not been formally tested. CRT aims to make the heart beat in a more synchronised way. Patients with HFpEF commonly have evidence of reduced heart synchronisation. The investigators plan to assess the feasibility of using a prospective cohort study to assess the incremental benefit of CRT over and above RRP in patients with HFpEF. 10 patients with HFpEF and insufficient heart rate will be recruited and will undergo exercise testing, heart scanning and symptom questionnaires. A biventricular pacemaker will be implanted and programmed to RRP for 12 weeks before repeating the tests. After this, the investigators will non-invasively programme the pacemaker to CRT for 12 weeks and repeat the functional tests. If incremental benefit is shown with CRT the echocardiograms will be analysed in detail to determine the mechanism of change. The study participants will be invited to continue their involvement in a study extension. This will involve non-invasively programming the pacemakers to optimise their function guided by the results of the echocardiograms in the first two phases of the study. After a further 12 weeks, the functional assessments will be repeated. If no benefit is seen with CRT after initial analysis, the participant involvement will end.

Completed14 enrollment criteria

A Study of Continuous Infusions of HNO (Nitroxyl) Donor in Patients With Heart Failure and Impaired...

Heart FailureCardiac Failure1 more

The purpose of this study is to evaluate the effects of BMS-986231 on systolic and diastolic parameters in patients with heart failure and low ejection fraction.

Completed14 enrollment criteria

Effect of Transcutaneous Vagal Stimulation (TVS) on Endothelial Function and Arterial Stiffness...

Heart Failure With Reduced Ejection FractionEndothelial Dysfunction

Heart failure (HF) is the leading cause of hospitalization in the US. Endothelial dysfunction, characterized by the decreased vasodilatory capacity of the vascular endothelium, is rampant in atherosclerotic diseases such as coronary artery disease and also in HF. Endothelial dysfunction also correlates with HF severity, progression, and mortality. It is postulated that endothelial dysfunction may in part be due to enhanced sympathetic drive, diminished parasympathetic drive, chronic inflammatory state thereby leading to reduced nitric oxide synthase activity in the vascular endothelium. Low-level vagus nerve stimulation (LLVNS) is an invasive way to modulate autonomic tone. Recent experimental and clinical data suggest that low-level transcutaneous vagal stimulation (TVS) (by stimulating the auricular branch of the vagus nerve located at the tragus of the external ear) may produce the same desired neuromodulator effect compared to LLVNS. The objective of this study is to determine the impact of TVS on endothelial dysfunction and arterial stiffness. The study population will include patients with chronic HFrEF. After performing baseline flow-mediated dilation (FMD), laser speckle contrast imaging(LSCI) and pulse wave analysis (PWA) testing, patients will be randomized to TVS or sham stimulation with a crossover design at different time points. The patient randomized to TVS arm will undergo stimulation for 1 hour followed by immediate measurement of FMD,LSCI and PWA. There will be a washout period of at least 24 hours with patient crossing over to the other arms thus serving as their self-control.

Completed12 enrollment criteria

Effect of Intravenous FerRic carbOxymaltose oN Reverse Remodeling Following Cardiac Resynchronization...

Heart Failure

To assess impact on left ventricular reverse remodeling defined as a change in left ventricular ejection fraction in heart failure patients with reduced ejection fraction (and previous implantation of cardiac resynchronization therapy) undergoing treatment with ferric carboxymaltose vs. placebo

Completed19 enrollment criteria

ERtugliflozin triAl in DIabetes With Preserved or Reduced ejeCtion FrAcTion mEchanistic Evaluation...

Type 2 Diabetes MellitusHeart Failure

This study aims to elucidate the mechanisms whereby the SGLT2i "ertugliflozin" modifies cardiorenal interactions that regulate fluid volume and neurohormonal activation in patients with type 2 diabetes and heart failure (T2D-HF).

Completed27 enrollment criteria

Novel INXN-4001 Triple Effector Plasmid in Heart Failure

Heart FailureCardiovascular Diseases1 more

To evaluate the safety of retrograde coronary sinus infusion (RCSI) of a novel triple-effector plasmid (INXN-4001) in outpatient LVAD recipients as assessed by incidence of all study intervention-related adverse events occurring up to 6 months post-RCSI (primary endpoints), and to evaluate general safety by assessing incidence of cardiac specific adverse events and the incidence of related serious adverse events at intervals up to 12 months post-infusion (or until cardiac transplantation or death).

Completed11 enrollment criteria

Researching Emotions And Cardiac Health: Phase III

Congestive Heart FailureEmotions1 more

The focus of this study is to examine the feasibility, acceptability, and preliminary impact of a 12-week, telephone-delivered, positive psychology (PP)-based health behavior intervention in a group of patients with mild to moderate heart failure (HF), compared to a motivational interviewing- (MI-) based education condition and treatment as usual (TAU).

Completed5 enrollment criteria

Exercise Therapy to Reduce Heart Failure Symptoms; Sorting Mechanisms of Benefit

Heart Failure

The purpose of this research study is to better understand how skeletal muscle is affected by heart failure, and to determine how exercise interventions impact skeletal muscle and functional capacity. While many think of heart failure as a disease that only affects the heart, doctors now believe that it actually affects the whole body, including skeletal muscle, such as the muscles of your arms and legs. Therefore, while many people with heart failure develop weakness and reduced exercise capacity, this may be related more to their skeletal muscle than their weakened hearts. This study looks directly at how exercise might change skeletal muscle and possibly improve quality of life in heart failure patients. As part of the study participants will take part in a cardiopulmonary exercise test, lower body strength testing, breathing assessment, a muscle biopsy (optional), blood draw, and DXA scanning (to assess lean body mass). Participants with heart failure will complete 1 of 3 exercise training interventions (aerobic vs. aerobic and strength vs. inspiratory) for 12 weeks and will be assessed pre and post to determine if any differences occur in their skeletal muscle and functional capacity as part of the exercise intervention.

Completed18 enrollment criteria

Effect of BIA 5 1058 on Cardiac Repolarization

Cardiovascular DiseasePulmonary Arterial Hypertension1 more

The purpose is to evaluate the effect of single therapeutic (400 mg) and supratherapeutic (1200 mg) doses of BIA 5-1058 on the time-matched change from baseline in placebo-adjusted interval corrected (QT) for heart rate (HR)

Completed35 enrollment criteria

Furoscix Real-World Evaluation for Decreasing Hospital Admissions in Heart Failure

Heart Failure

The study is to evaluate the safe admission avoidance and the overall economic impact associated with management of worsening HF using the drug-device combination product, the Furoscix Infusor, outside the hospital setting in patients initially presenting to the emergency department. The study drug, Furoscix (furosemide injection 8 mg/ml), is a furosemide solution buffered to a neutral pH containing 80 mg/10 mL for subcutaneous administration over 5 hours via the Furoscix Infusor. The study objectives are: To evaluate differences in healthcare resource utilization and direct medical costs for patients treated with the Furoscix Infusor outside the hospital versus patients receiving intravenous furosemide for ≤ 72 hours in the hospital setting for 30 days post-discharge from the emergency department. To evaluate the safety of Furoscix administered outside the hospital. To evaluate and describe quality of life and patient satisfaction for patients who receive the Furoscix Infusor outside the hospital setting.

Completed25 enrollment criteria
1...149150151...468

Need Help? Contact our team!


We'll reach out to this number within 24 hrs