View clinical trials related to Chronic Heart Failure.
Filter by:This study aims to evaluate the effect of standard heart failure therapy plus oral solution with protein succinylate iron compared to placebo on the primary end point of 6 minute walk distance at 24th week in patients with chronic ejection fraction reduction heart failure and iron deficiency.
Management of chronic heart failure (CHF) is a major public health problem. It is associated with high mortality, frequent hospitalization and represents a large cost to the health care system. Both pharmacological and non-pharmacological intervention haven't shown to be effective in reducing morbidity and mortality of these patients when able to modulate the activity of neuro-hormonal systems among them the sympathetic nervous system. Recent data have emphasized the potential role of sympathetic renal denervation in patient with hypertension. CHF per se but even more CHF associated with comorbity lead to significant increase level of sympathetic tone. This is largely induced by autonomic dysfunction such as chemo or baroflex abnormalities. These patients usually suffer from conditions which do not allow upgrading and adapting drugs to their sympathetic condition. Hence CHF patient with chronic kidney disease, anemia or both have markedly high sympathetic activity and cannot be exposed to higher level of RAS Blockers or beta blocker due to their renal dysfunction, they thus remain with an elevated sympathetic activity worsening symptoms and prognosis. Chronic heart failure affects around 100 million people worldwild imposing a significant burden on health care system throughout the world. Even though symptoms are improved by heart failure therapy, they remain significantly disabling for many patients. Chronic over activation of the sympathetic nervous system is a major component of heart failure and involves efferent and afferent pathways between brain and many organs. A new therapy directly targeting nerve traffic-renal artery denervation- has been shown to be effective in drug resistant hypertension, with an average drop in blood pressure of 33/12 mm hg. The cardiologists team of the private hospital Arnault Tzanck is willing therefore to conduct a study in 12 patients with chronic systolic heart failure undergoing bilateral renal denervation with an intensive protocol of observation and assessment compring a 3 day hospital stay post procedure 3 and 6 months of regular outpatient follow-up.
Study hypothesis is that the time from randomization to the increase of natriuresis (%), time to standardization of natriuresis daily profile, blood pressure profile and the percentage reduction of central hemodynamic parameters will be relatively changed over the study period by more than 15%.
The treatment of chronic heart failure (CHF) is a key challenge in public health. Despite medical advances, 1-year mortality of NYHA III-IV CHF is 28%. Undernutrition is an independent risk factor for mortality and complications. Up-to-date, interventional studies involving nutrition are scarce in CHF. Academic societies are recommending the use of oral nutritional supplements (ONS) in case of weight loss, without defining the modalities. ONS could improve nutritional status in undernourished CHF patients, but solely administered, have a limited impact on undernutrition, physical performance and prognosis. A multimodal approach integrating physical exercise, nutritional intakes, polyunsaturated n-3 fatty acids (n-3 PUFA), and anabolizing hormones, has to be privileged. A recent trial has shown the clinical benefits of such an approach in patients with chronic respiratory insufficiency (CRI), who have similar nutritional and muscular characteristics. Exercise rehabilitation is well validated in CHF patients, but has never been validated in case of undernutrition. Exercise rehabilitation allows improving exercise capacity, quality of life and cardiovascular outcomes including mortality. N-3 PUFA supplementation improves muscle strength and endurance in CRI patients. n-3 PUFA supplementation decreases by 30% cardiovascular mortality of CHF patients. n-3 PUFA could be useful for CHF patients rehabilitation. Androgenopenia is a prognostic factor in CHF. Androgen substitution improves significantly muscle strength, walking endurance and quality of life. In the context of a multimodal approach, Androgen substitution together with exercise rehabilitation and ONS could have a beneficial effect on muscle mass, strength and endurance of CHF patients, as already described in CRI, elderly and HIV patients. The study hypotheses that a 3-month multimodal approach associating exercise rehabilitation, androgen substitution, n-3 PUFAs and ONS improves exercise capacity of undernourished CHF patients.
The purpose of this study is to investigate the effect of an early, coordinated rehabilitation intervention for patients with severe heart failure in NYHA class III and IV with a ejection fraction of <40% of normal cardiac function measured on frequency of readmissions, physical ability and participation in activities of daily living and quality of life.
Background and Purpose- According to our prior studies, left atrial (LA) distensibility was associated significantly with left ventricular filling pressure in patients with acute myocardial infarction (AMI), chronic stable angina, and severe mitral regurgitation. LA distensibility can be used as noninvasive Swan-Ganz catheter. Additionally, it could predict in-hospital mortality in AMI patients. In the current study, left atrial distensibility guiding management in advanced chronic heart failure will be performed to assess whether those management could influence long-term prognosis including mortality rate, rehospitalization rate and the duration of rehospitalization. Materials and Methods- Advanced chronic heart failure (HF) is defined as left ventricular ejection fraction less than 35%, creatinine less than 2 mg/dL, and CHF NY functional class III-IV for more than 3 months. Enrolled patients should be admitted to hospital due to heart failure requiring adjustment of inotropic agents or diuretics within recent 6 months. Three hundred HF cases will be recruited - 100 with sinus rhythm, and 100 with atrial fibrillation served as LA distensibility guided treatment group (guide group) and another 100 patients, either sinus rhythm or atrial fibrillation, served as control group. The management of guide group will be adjusted by LA distensibility, including the dose of inotropic agents, diuretics, beta-blocker, ACEI, and AIIB. Initially, the guide group will be followed 1 time per 2 week at first 3 months, then 1 time per month later. The control group will be treated by conventional management and traditional echocardiography can be performed as in-charge doctor request. The necessity of hospitalization for heart failure will be adjusted by 2 cardiovascular specialists and all patients admitted for heart failure will be managed by the same one cardiovascular specialist (Shih-Hung Hsiao). The total duration of follow-up will be 2 years. For life-threatening heart failure, intravenous nitroprusside drip under continuous A-line monitor, percutaneous coronary intervention, Swan-Ganz catheter insertion, intra-aortic balloon pump, and ECMO can be done according to the order of in-charge doctor. The primary end-point will be all-cause mortality. The second end-points will be heart failure with hospitalization and the duration of each hospitalization. Additionally, the ratios of medication changes in 2-year follow-up, including diuretics, inotropic agents, beta blockers, ACEI, and AIIB, will be assessed. Analysis will also be performed to estimate the trends of heart function (either systolic or diastolic) and renal function during 2-year follow-up according to whether guiding by LA distensibility is done or not.
The DREAMING clinical trial is part of the DREAMING project, which has the objective to demonstrate that the DREAMING platform consisting of integrated health monitoring, alarm handling and videoconferencing services produces clinical benefits to its users and economic benefits to the health authorities. The study evaluates the long-term (30 months) effect of continuous use of the DREAMING subsystems and is testing the hypothesis that such use is superior to usual care alone in reducing the deterioration of health related quality of life that is associated to age and chronic disease. It also tests the hypothesis that the DREAMING environment is superior to usual care in delaying the transfer to nursing or elderly homes and in reducing the incidence and duration of hospitalisation episodes. The trial will also evaluate the cost-effectiveness of the DREAMING platform. Outcomes are assessed in six different health care systems (Denmark, Estonia, Germany, Italy, Spain and Sweden) and will represent a basis for the adoption of DREAMING services by the respective health authorities.
Background. Clinical benefits of cardiac resynchronization therapy (CRT) have been clearly demonstrated in heart failure (HF) patients with severe left ventricular (LV) dysfunction and wide QRS at surface electrocardiogram. However, there is a growing evidence that QRS duration poorly predicts responses to CRT, and that ~30% of patients do not experience any benefit from CRT when pre-implant dyssynchrony is defined according to electrocardiographic criteria. A number of echocardiographic criteria have been proposed to assess mechanical LV dyssynchrony, but at present there is no consensus on their use to predict response to CRT. Study Design. The Italian Multicenter PROject on echo assessment of left VEntricular (IMPROVE) dyssynchrony study is a prospective, multicenter, observational study aimed to assess feasibility and predictive power of mechanical dyssynchrony assessed by echocardiography in consecutive consenting patients candidate to CRT by clinical and electrocardiographic criteria. IMPROVE will enroll 120 healthy subjects and 216 HF patients in 6 sites in Italy. CRT response criteria will be based on improvement in NYHA class and LV reverse remodeling evaluated by 3D-echocardiography. Enrollment is expected to conclude early 2009. Implications. CRT is today part of the therapeutic armamentarium for symptomatic HF patients refractory to medical therapy, with wide QRS complex and severe LV systolic dysfunction. The IMPROVE study has been designed to evaluate reference values of indexes of ultrasound mechanical dyssynchrony that have been proposed in the literature and compare their ability to predict response to CRT in HF patients.