View clinical trials related to Congenital Heart Disease.
Filter by:Neurally adjusted ventilatory assist (NAVA) is a new mode of mechanical ventilation that delivers ventilatory assist in proportion to neural effort. It was a controlled randomized single-center prospective study in order to explore the efficacy of this new mode of mechanical ventilation after corrective open-heart surgery for congenital heart disease.
Statins have been used to low cholesterol to prevent and treat coronary artery diseases. It was also reported that statins could protect endothelial function and cardiac function during coronary artery bypass graft. The investigators recent found simvastatin reduced myocardial injury during noncoronary artery cardiac surgery in single medical center. The investigators further investigate that whether simvastatin can protect myocardium during noncoronary artery cardiac surgery with cardiopulmonary bypass and improve cardiac function with long term use postoperatively in two medical centers.
Congenital heart disease (CHD) is the most common type of birth defect but the cause for the majority of cardiac birth defects remains unknown. Numerous epidemiologic studies have demonstrated evidence that genetic factors likely play a contributory, if not causative, role in CHD. While numerous genes have been identified by us and other investigators using traditional genetic approaches, these genes only account for a minority of the non-syndromic CHDs. Therefore, we are now utilizing whole genome sequencing (WGS), with the addition of more traditional genetic techniques such as chromosomal microarray or traditional linkage analysis, to identify genetic causes of familial and isolated CHD. With WGS we are able to sequence all of the genetic material of an individual and apply different data analysis techniques based on whether we are analyzing a multiplex family or a cohort of trios (mother, father and child with CHD) with a specific isolated CHD. Therefore, WGS is a robust method for identification of novel genetic causes of CHD which will have important diagnostic and therapeutic consequences for these children.
Cardiac surgery relieves symptoms and increases life expectancy in cardiac patients, with and without congenital heart disease (CHD). However, cardiac surgery involves many risks of complications, such as bleeding, arrhythmias, and death.Right ventricular failure is another complication, contributing to poor clinical outcome. Right ventricular failure is a clinical syndrome, often difficult to treat, characterized by edema, elevated jugular venous pressure, oliguria, hypotension, and in severe cases shock, multi organ failure and death. Patients with CHD and patients with mitral valve lesions are suspected to be at increased risk for developing right ventricular failure post-operatively. In addition, other clinical factors contributing to right ventricular failure are mechanical pulmonary ventilation, pulmonary hypertension and cardiac surgery. Right ventricular failure during cardiac surgery is caused by the cardiopulmonary bypass by reperfusion with high partial pressures of oxygen, air embolism, and the release of cytokines. The endothelin-1 cytokine induces vasoconstriction of the pulmonary arterioles resulting in right ventricular afterload elevation. Treating patients with an endothelin-1 receptor antagonist might improve clinical outcome post operatively by decreasing right ventricular afterload
The purpose of this trial is to determine, at 3 years of life, how the neurologic and functional outcomes in infants with single ventricles are different when comparing children treated with the Hybrid strategy to the Norwood strategy.
The purpose of this study is to determine whether oral sildenafil citrate reduces the abnormal right ventricular pressure response during exercise in adolescent and adult patients with specific types of congenital heart defects.
Magnetic Resonance Imaging (MRI) is an effective and radiation free method of diagnosing Congenital Heart Disease (CHD). MRI works by taking images of the anatomy and physiology. These images also provide information on the hearts function and blood flow. The clarity of these images is enhanced by the use of contrast agents (dyes). However these agents only stay in the blood vessels for a short time and therefore limit the time in which the better quality images can be obtained. This study aims to determine whether MRI using Vasovist (a dye that stays in the vessels for a prolonged period of time) can improve the diagnosis of Congenital Heart Disease (CHD) by allowing more areas to be imaged and the improved assessment of various parameters (anatomy, volumes, flow) as well as vastly improving image quality.
The study team will use small pieces of human hearts which are removed as part of a required surgical procedure to study different objectives. One of the objective is how calcium ions pass through the membrane of heart cells in order to tell the heart cell how much force to contract with when the heart beats. Investigators will also study the proteins and RNA of these pieces to determine how the newborn heart cells control their force of contraction differently from adult heart cells. Investigators hypothesize that infant hearts have different regulation of calcium entry than adult hearts. The study team also wants to study combinations of 3D cardiac spheres with multiple environmental cues that can improve functional and metabolic maturation of Human pluripotent stem cell-derived cardiomyocytes (hPSC-CMs) and generate a more clinically relevant cell model.