View clinical trials related to Cardiomyopathies.
Filter by:This study is being done to determine if Ranolazine treatment improves coronary microcirculation function among patients with coronary microcirculation dysfunction. We are also looking to learn if symptomatic improvement of chest pain during treatment with Ranalozine is related to improved coronary microcirculation function.
Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) is an inherited condition that may cause life threatening irregular heart rhythms that often manifest as unexpected cardiac arrest or sudden death in early adulthood. The condition is difficult to diagnose and often is not noticed until a family member suffers a cardiac arrest or death. The Canadian National ARVC registry will collect data from Inherited Heart Rhythm Clinics across Canada. STUDY OBJECTIVES: Primary: 1. To determine the natural history of ARVC (short/intermediate term), including risk of symptomatic arrhythmias and sudden death, for patients with the phenotype and those gene positive patients without phenotype evidence of disease. 2. To understand risk factors for sudden death/appropriate ICD use in ARVC, including test characteristics/performance and their relationship to outcomes (ECG, Holter, signal averaged ECG, loop recorders, imaging, voltage mapping, T wave alternans, cardiac biopsy and biomarkers). 3. To establish a phenotype genotype correlation, including comparison of patients with disease causing mutations, variants of unknown significance (VUS) and Task Force Criteria (TFC) positive, gene negative patients
Pathophysiology of diabetic cardiomyopathy (DCM) is yet unclear and gender differences at baseline and a specific treatment have not been indicated. The investigators already demonstrated the positive impact of phosphodiesterase type 5A (PDE5A) inhibition in men. The investigators' study aims to characterize DCM, measuring molecular and neuroendocrine assessment to relate to intramyocardial metabolism and cardiac kinetic. The investigators will perform a randomized, placebo-controlled, double-blind study enrolling 164 diabetic patients (females and males) with DCM, to evaluate gender responses to 6 months of PDE5A inhibitors (PDE5Ai). The investigators' study will describe gender differences in DCM features. The proposed research will test whether PDE5Ai could become a new target for antiremodeling drugs and to discover a molecular pathways affected by this class of drugs and a network of circulating markers for the early diagnosis, monitoring and prediction of response to treatment of DCM.
The primary goal of the study is to measure in the intact human heart, the alterations in gene expression over time that are associated with reverse remodeling in response to β-blockade. The second goal is to investigate the signaling mechanisms which in turn are responsible for these changes in gene expression, and the third goal is to determine the relationship between intrinsic systolic dysfunction and remodeling of the left ventricle. This will be accomplished by measuring ventricular size, function, and gene expression in myocardial tissue samples obtained by percutaneous biopsy prior to initiation of β-blockade and at 3 and 12 months after start of therapy. The specific Aims and Hypotheses to be tested are: 1. Aim: Determine the changes in gene expression associated with changes in intrinsic systolic function and with functional decompensation in the intact, failing human heart. a. Hypothesis: Changes in the expression of select genes precede or accompany changes in left ventricular systolic function in humans with idiopathic dilated cardiomyopathy (IDC). 2. Aim: Identify signaling mechanisms responsible for alterations in expression of key genes involved in mediation of ventricular hypertrophy or contractile dysfunction. a. Hypothesis: Myocardial-failure-associated regulation of select messenger ribonucleic acids and proteins are related to left ventricular wall stress and neurohormonal signaling. 3. Aim: In the relationship between contractile dysfunction and dilatation/remodeling, determine the relationship between contractile dysfunction and structural remodeling. b. Hypothesis: the contractile dysfunction is primary and structural remodeling secondary.
CoRDS, or the Coordination of Rare Diseases at Sanford, is based at Sanford Research in Sioux Falls, South Dakota. It provides researchers with a centralized, international patient registry for all rare diseases. This program allows patients and researchers to connect as easily as possible to help advance treatments and cures for rare diseases. The CoRDS team works with patient advocacy groups, individuals and researchers to help in the advancement of research in over 7,000 rare diseases. The registry is free for patients to enroll and researchers to access. Visit sanfordresearch.org/CoRDS to enroll.
Set the Korean Familial Hypertrophic Cardiomyopathy (KFHC) registry to study the prevalence of gene mutations in Korean patients with familial hypertrophic cardiomyopathy
This clinical trial studies the effects of dexrazoxane hydrochloride on biomarkers associated with cardiomyopathy and heart failure after cancer treatment. Studying samples of blood in the laboratory from patients receiving dexrazoxane hydrochloride may help doctors learn more about the effects of dexrazoxane hydrochloride on cells. It may also help doctors understand how well patients respond to treatment.
Patients with dilated cardiomyopathy who present for indwelling right heart catheterization will be enrolled and randomized to either control or triheptanoin oil for five days. Hemodynamics will be assess serially.
Healthy Lifestyles for Children with Complex Heart Problems is a planning and resource development project. The goal of the project is to develop an implementation plan that would enable children with complex heart problems to lead healthy, active lives within their own community. The primary goal of the project is to promote physical activity, because the physical and mental health benefits of activity are very important for these children. Children with complex heart problems have a higher risk for obesity, diabetes, acquired heart disease and mental health problems than their healthy peers. The physical health benefits of physical activity are well known, but physical activity is also key for children's mental health. Physical activity enables children to socialize with peers and create bonds and friendships. Physical activity participation also directly elevates mood through the release of brain chemicals. Children with complex heart problems are also known to experience fear and anxiety related to physical activity. This project will also develop strategies to promote healthy eating and the prevention of physical activity-related injuries to these children and their families. Children with complex heart problems are at higher risk of overweight and obesity and face unique injury risks related to pacemakers or their medications. Extensive consultations with families and caregivers have identified needed supports for physical activity lifestyles, mental health, healthy eating and injury prevention for these children. The goal of the interviews was to understand the positive and negative influences on physical activity and healthy lifestyles for these children. Analyses of the interview content was used to develop a detailed, step-by-step implementation plan to provide the supports necessary for children with complex heart problems to lead active, healthy lives in their own community, with their family and friends. The implementation plan specifies changes to family education and counselling resources, clinical care routines, and communication among professionals and families. The clinical trial will evaluate the impact of implementing the family supports and changes to practice previously developed. Surveys will be completed by families attending the cardiac clinic before and after the changes to practice and additional resources are made available. Interviews will be utilized to gather additional feedback from professionals and families that receive counselling utilizing the supplementary materials.
The purpose of this study is to investigate the effects of tafamidis on the intervals of the electrocardiogram, specifically the rate corrected QT interval (QTc) in healthy volunteers.