Active clinical trials for "Cardiomyopathies"

Assess whether serum levels of MMP 2 and or MMP 9 correlate with episodes of ventricular tachycardia or fibrillation in patients who have implantable cardioverter defibrillator devices.

The human heart is divided into four chambers. One of the four chambers, the left ventricle, is the chamber mainly responsible for pumping blood out of the heart into the circulation. There is an inherited condition affecting the heart, passed on through genetics, hypertrophic cardiomyopathy (HCM). HCM causes the left ventricle to become abnormally enlarged (left ventricular hypertrophy LVH). Some patients with the abnormal genes that may cause HCM do not have the characteristic LVH. Approximately 20 - 40% of patients with the genetic abnormality (missense mutation of genes encoding for sarcomeric protein) actually have an enlarged left ventricle. Because of this, researchers believe there may be other factors, along with the genetic abnormality that contribute to the development of HCM. Researchers are interested in learning more about several factors they suspect may play a role in the development of HCM. Specifically, researchers plan to study levels of a hormone and the protein it attaches to, which may contribute to the development of an abnormally enlarged heart. Insulin-like growth factor (IGF-1) and insulin-like growth factor binding protein (IGFBP) work together with growth hormone (GH) in the development and maturation of many organ systems. Previous studies have suggested that these hormones affect the development and function of the heart. Patients participating in this study will undergo a variety of tests including collection of blood samples, echocardiogram of the heart, treadmill exercise test, and continuous electrical monitoring of heart activity (Holter monitor).

This is a retrospective review of the data available on patients and their family members with HCM and prospective follow-up of this cohort for clinical outcome and diagnostic studies. Genetic samples are being examined in this cohort to determine whether certain to determine whether certain beta-AR polymorphisms as well as other common genetic polymorphisms are associated with different morphological features, such as LVH in patients with HCM and whether these polymorphisms influence the clinical course and outcome in patients with HCM. For that purpose, we will build a database with clinical information including serial echocardiographic measurements for patients with HCM that have regular follow up and test them for beta-AR polymorphisms as well as other common genetic polymorphisms and other known cardiac-related polymorphisms that can potentially contribute to the morphologic differences seen in patients with HCM.

The purpose of this study is further risk stratification of patients receiving implantable cardioverter-defibrillator in primary prevention of sudden cardiac death.

Using bone marrow mononuclear cell in 24 patients with Idiopathic dilated cardiomyopathy

The My Research Legacy Pilot Study will establish a participant registry that collects self-reported health data and answers to online survey questions about individual daily choices, diets, and exercise; data from wearable devices; and, (optional) data from genome sequencing analysis. Individuals under the age of 50 who meet eligibility criteria will answer questions using the American Heart Association's (AHA) Life's Simple 7™ My Life Check v4.0 three times over the course of 6 months and transmit data from a Fitbit Charge 2 device. All other individuals who are interested in the study and meet entry criteria may also enroll.

The purpose of this study is to determine if the forehand location for sensor placement has less episodes of signal dropout than the finger sensor location. In addition, this study will evaluate two finger sensors, which utilize different technology to compare signal quality.

In systemic lupus erythematosus (SLE), cardiac manifestations, e.g. coronary artery disease (CAD) and myocarditis are leading causes of morbidity and mortality. The prevalence of subclinical heart disease in SLE is unknown. We studied whether a comprehensive cardiovascular magnetic resonance (CMR) protocol may be useful for early diagnosis of heart disease in SLE patients without known CAD

This study will collect clinical, echocardiographic, nuclear imaging and hemodynamic data in a group of patients with end stage ischemic cardiomyopathy undergoing left ventricular assist device (LVAD) implantation to investigate the incidence of recovery of myocardial function when supported with LVADs, and to study the association between hibernating myocardium and myocardial recovery in this population.

Presently, the left ventricular lead is placed in a similar position for all patients. It is not known whether placing this lead in different positions in the heart will make the heart pump better. In this study, the investigator will collect measurements of the heart's electrical activity during an Electrophysiology Study (EP study or EPS). The hope is that these measurements will provide the know how to develop an individualized left ventricular lead placement "prescription" for patients referred for left ventricular lead pacing.