Active clinical trials for "Heart Failure"

The purpose of this study is to determine whether waveforms of the intracardiac electrograms, acquired through an ICD, can be used: to predict malignant ventricular arrhythmias, requiring appropriate ICD therapies, and to predict progression of heart failure in patients with ICD.

The purpose of the study is to investigate respiratory indicators for clinically important changes in Heart Failure status over time.

To collect information on pediatric patients receiving Cardiac Resynchronization Therapy (CRT) with permanent biventricular pacing (BVP) as a method of treating chronic heart failure.

The guiding hypotheses are that (1) mechanisms in addition to diastolic dysfunction, while normal at rest, are compromised with stress, leading to symptoms of HF, and (2) that an increased proportion of the increase in LV diastolic pressures seen in HFpEF is mediated via exaggerated pericardial/right heart-LV coupling (restraint).

To gather data and analyze decompensation events.

The purpose of the study is to investigate the clinical and morphological characteristics of chronic subclinical inflammation in the myocardium in patients with decompensated heart failure with ischemic systolic dysfunction.

Cognitive impairment, commonly reported as difficulty with memory and executive function, is a widely recognized clinical challenge for older persons with heart failure (HF). Little is known about the relationship between brain MRI and cognitive impairment in older persons with HF. A limited number of studies have investigated brain MRI in adults with HF and produced conflicting results. Previous findings are limited by use of lower resolution scanners (1.5 Tesla), lack of MRI techniques (i.e. combining structural sequences with perfusion sequences) and recruitment of mixed age samples. Based on these limitations, the purpose of this research plan is to explore the relationship between brain MRI and cognitive impairment in older persons with HF using high resolution structural and perfusion scans. To accomplish this goal, investigators will compare 40 adults with HF who are age > 65 years old with 40 healthy, gender, age, and education matched controls. Investigators will obtain neuropsychological measures of multiple domains, as well as MRI measurements of the temporal lobe and prefrontal cortex at baseline and 12-months.

In patients undergoing CRT device implantation a lead positioning in the coronary sinus is required. Even this part of the surgical procedure is challenging. In this study we compared retrospectively to methods of CS-lead implantation: conventional vs. EP-catheter guided.

The purpose of this study is to evaluate Cardiac Resynchronization Therapy(CRT) response in subjects with concordant versus discordant left ventricular (LV) lead position as compared to the site of latest mechanical activation.

The AQT90 FLEX B-type Natriuretic Peptide (BNP) and N-terminal pro B-type natriuretic peptide (NT-proBNP) Tests are in vitro diagnostic assays intended as an aid in the diagnosis and assessment of the severity of heart failure in point-of-care and laboratory settings. The purpose of the study is to establish the clinical performance of the AQT90 FLEX BNP and NT-proBNP assays for both whole blood and plasma in the intended use population.