View clinical trials related to Chronic Heart Failure.
Filter by:In patients with both COPD and CHF, moderate chronic hypoxemia is caused by a combination of intrapulmonary and extrapulmonary factors. The hypothesis of this study is that adequate medical therapy for both conditions can correct the moderate hypoxemia by improving the underlying mechanisms without the need of LTOT. If this hypothesis is correct, the study will provide a valuable information to the Italian Agency of drugs (Agenzia Italiana del Farmaco, AIFA) to reduce the inappropriate use of LTOT for COPD patients with moderate hypoxemia and CHF, and will help the Italian National Health Service to reduce both the direct and indirect costs of unnecessary LTOT.
The purpose of this study was to determine the effects of a high caloric drink on weight and several other clinical markers including quality of life in patients with unintentional weight loss (cachexia) due to chronic heart failure.
This is a randomized, open-label, three-way crossover design study with 3 treatment groups:TREATMENT A: Furosemide;TREATMENT B: Nesiritide administered IV bolus, followed by an infusion for 6 hours;TREATMENT C: Treatment B for at least 15 minutes, then administration of treatment AAll sequences involving both furosemide and nesiritide had the nesiritide infusion started first, at least 15 minutes before furosemide was administered. Each treatment will be administered according to 1 of 6 sequences to which patients are randomized. Patients will remain in the Clinical Research Unit for 7 days, with treatments administered on Days 2, 4, and 6, with equilibrium (rest) days on Days 1, 3, and 5. All patients will be followed for safety throughout the treatment phase, and by telephone between 7 and 14 days after they are discharged from the Clinical Research Unit.
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.
The purpose of this study is to assess whether baseline sympathetic innervation in patients with chronic heart failure (CHF) is predictive for response to cardiac resynchronization therapy (CRT). And to assess whether response to CRT coincides with restoration of regional sympathetic innervation.
Superiority of additional Remote Patient Monitoring in patients with CHF In comparison to usual care in terms of: - reduction of mortality rate - reduction of hospitalizations - increasement of patients' quality of life
The aim of the study is to determine the safety and feasibility of giving an adeno-associated viral vector expressing the sarcoplasmic reticulum calcium ATPase (SERCA2a), driven by the CMV promoter (AAV1-CMV-SERCA2a), to heart failure patients that have received a left ventricular assist device (LVAD) for an accepted clinical indication.
This study is designed to evaluate the efficacy of Ferinject® in improving symptoms of CHF in patients with iron deficiency. Analyses will focus both on subjective and objective measures. Furthermore, the tolerability and safety of Ferinject® treatment will be evaluated.
The investigators test the hypothesis that different beta-blockers had a different influence on chemoreceptor response and lung diffusion capacity. Both could influence exercise capacity in normoxic as well as hypoxic conditions.
To evaluate the effects of CO2 inhalation and acetazolamide treatment on exercise-induced periodic breathing in patients with chronic stable heart failure. Patients will be given CO2 (2%) during a constant workload exercise. Patients will be also evaluated by maximal cardiopulmonary exercise test without and with acetazolamide acute and chronic treatment.