View clinical trials related to Heart Defects, Congenital.
Filter by:Conventional cardiac operations are performed with median sternotomy, which is related to great wound, morbidities, longer duration in hospital and most significantly, cosmetic problems. The investigators invested a new minimally invasive cardiac operation method totally under video-endoscope and peripheral cardiopulmonary bypass. The investigators' hypothesis is that this new minimally method could provide better cosmetic effects to the patients, and also relate to shorter postoperative hospital stay and better recovery.
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.
Children with congenital heart defects have shown to develop motor coordinative deficiencies. In this study we want to show that a motor pedagogic physical training can improve the coordinative capabilities of children aged 4-6 years.
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.
Setup CT images database of congenital heart disease.
To test the ability of multi-detector spiral CT in evalting the infant complex congenital heart disease.
OBJECTIVES: I. Determine the pattern of immunologic reconstitution in patients with T-cell compromise due to DiGeorge syndrome or velocardiofacial syndrome. II. Determine any correlation between immunologic function in these patients and chromosome 22 deletion breakpoints. III. Determine presence of sustained immunologic compromise in older patients.