View clinical trials related to Congestive Heart Failure.
Filter by:Subjects were recruited if their healthcare provider decided that they needed treatment with a special Internal Cardiac Defibrillator (ICD) called a biventricular ICD. The investigators did this study to see if part of the nerve organ, called the sympathetic nervous system, may be responsible for the improvement seen in patients that receive biventricular pacing. The investigators had three ways to measure sympathetic nervous activity: 1) by using a special blood sample, 2) by monitoring heart rhythm, and 3) by performing a special heart scan.
The purpose of this study is to determine whether changes in a patient's position affect LV capture thresholds in a clinically significant way.
The main objective is to test the effect of prolonged therapy (24 weeks) with isosorbide dinitrate ± hydralazine on arterial wave reflections (primary endpoint). Secondary endpoints include left ventricular (LV) mass, fibrosis and diastolic function) and exercise capacity (assessed via the 6-minute walk test) in patients with Heart Failure and Preserved Ejection Fraction (HFPEF). We will also test the hypothesis that the reduction in arterial wave reflections induced by vasoactive therapy will correlate with the improvement in exercise capacity, LV mass, fibrosis and diastolic function. Finally, we will assess whether the hemodynamic response to an acute dose of sublingual nitroglycerin (NTG) can predict the sustained changes in the reflected wave and other hemodynamic parameters in response to chronic vasodilator therapy.
The purpose of this study is to evaluate whether telemonitoring of patients with chronic heart failure produces a reduction in the combined end point of all cause mortality and number of hospitalisations, and whether it improves health related quality of life. In addition, the trials evaluate the economic and organisational impact of the telemonitoring service and examine its acceptability by patients and health professionals.
The purpose of this study is to evaluate whether telemonitoring of patients with chronic heart failure produces a reduction in the combined end point of all cause mortality and number of hospitalisations, and whether it improves health related quality of life. In addition, the trials evaluate the economic and organisational impact of the telemonitoring service and examine its acceptability by patients and health professionals.
The Boston Scientific Energen family is capable of measuring the respiratory rate trend (RRT) on a daily basis and transmission of data via the Remote Monitoring technology. This may result in early detection of imminent decompensation at a presymptomatic stage. The study will assess the respiratory trends correlation with clinically relevant heart failure events.
Objective target of the registry is to investigate the prevalence of SDB as well as the clinical characteristics of patients with and without SDB as well as the predominant type of sdb. For this purpose data from patients suffering from chronic, symptomatic heart failure with impaired left ventricular ejection fraction will be collected prospectively.
The purpose of this study is to obtain data or information on how blood clotting factors are activated during open heart surgery. In particular, the investigators are interested in how blood clotting factors are activated by the heart-lung bypass machine and by left ventricular assist devices (LVAD). Patients on these two machines have an increased risk of bleeding and blood clot formation. This is because both machines stimulate the intrinsic coagulation pathway, one of the chemical pathways that cause blood to clot. The process of surgery itself also stimulates the "extrinsic coagulation pathway," the other chemical pathway that causes blood to clot. Stimulating these coagulation pathways can use up the body's clotting factors. As a result, patients may be at risk for both bleeding and blood clot formation. The investigators would like to study how the blood factors are activated during and after surgery, to help develop treatments to prevent bleeding and clot formation.
The objective of this study is to compare the effect of monitored, home-based exercise versus hospital-based exercise on the quality of life of patients with congestive heart failure. Secondary objectives are to assess the effect of the intervention on exercise capacity and caregiver burden. The investigators hypothesize that the exercise training in the home-based environment will be superior to hospital based exercise training.
The objective of this study is to determine whether the finger tip images captured by the EPIC ClearView device, when analyzed via the ClearView software, produce a Response Scale that characterizes trends consistent with known diagnoses identified by medical doctors. Specifically, the investigators hypothesize that the organ system involving any of a series of known active diagnoses will be identified in the EPIC ClearView Response Scale report with the intention of providing potential triage capabilities.