Active clinical trials for "Heart Defects, Congenital"

Acute kidney injury following cardiac surgery for congenital heart defects in children is a major cause of both short- and long-term morbidity and mortality, affecting up to 60% of high risk patients. Despite effort, to date, no successful therapeutic agent has gained widespread success in preventing this postoperative decline in renal function. Based on preliminary data available in the literature, we hypothesize that nitric oxide (gNO), administered during cardiopulmonary bypass (CPB), may reduce the risk of acute kidney injury (AKI) via mechanisms of reduced inflammation and vasodilation. In this pilot study, 40 neonates undergoing cardiac surgery will be randomized to receive intraoperative administration of 20 ppm of nitric oxide to the oxygenator of the cardiopulmonary bypass circuit or standard CPB with no additional gas.

This project is evaluating the validity of regional saturation monitoring in evaluating changes in the mesenteric perfusion. Regional saturation monitoring is a standard of care in many institutions, including NCH. Advances in the technology and recent approval of the use of CASMED devices for this purpose will allow us to use this technology more effectively. We aim to evaluate if there is a change in the mesenteric blood flow during the pre, intra and post operative period for the hybrid procedure and the balloon atrial septostomy procedure (BAS).

During repair of a congenital heart defect the child is exposed to myocardial hypoxia. Recent studies have suggested that the paediatric myocardium is more sensitive to hypoxia and cardioplegic arrest than the adult. The protective effect of halogenated agents on ischaemia and reperfusion injury has been investigated widely in adults. The investigators hypothesis that sevoflurane applied during cardiopulmonary bypass might afford better myocardial protection during paediatric cardiac surgery.

Congenital heart disease in infants and children often challenges healthcare providers both in regards to diagnosis and in the management of these conditions. The field becomes more complicated as one examines the myriad of defects that present and the complex care that is required. Over the last 20-25 years, the remarkable advances in the medical and surgical management of the most complex lesions have decreased neonatal mortality, such that many more survive the neonatal period. Therefore, new challenges regarding the continued care of this patient cohort of high-risk infants and children exist. In order to continue the improvement of treatment(s) offered to these patients, continuous review and analysis of the current standard of care is needed. In this study, the investigators will collect information related to the current surgical and medical therapies offered to patients enrolled in the High Risk Congenital Heart Program at Children's Healthcare of Atlanta. All of the procedure and visit information will be a part of the child's standard of care. This information will be placed in a database. The investigators hope to learn more about the short-term and long-term effects of current therapies and procedures.

In today's world of advanced surgery, children born with congenital heart disease (CHD) are surviving into adulthood. However, the surgical procedures these children undergo do not cure the underlying problem and this these children develop other heart problems later in life. Heart failure is the one of the most common heart problems effecting these patients. This heart failure can be seen in both lower pumping chambers of the heart, however, sometimes only one side of the heart is affected. Since there are several congenital heart defects that are now seen in the adult population, an understanding of what causes heart failure in this patient population can help physicians develop better treatments for this condition. The goal of this study is to review the medical records of 350 adult patients with congenital heart disease that has developed heart failure. During this review, we plan to collect information regarding the various treatments utilized in these patients and to determine if there are any common elements regarding the development of heart failure in adult patients with CHD.

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.

Humidified high flow nasal prong oxygen therapy is a method for providing oxygen and CPAP. The delivery of high flows decreases dilution of the inhaled oxygen and, by matching patient's peak flow, allows accurate delivery of the set FiO2 throughout the whole inspiratory phase. In addition, a flow-dependent effect of continuous positive airway pressure, possibly due to an air entrainment mechanism, has been documented in healthy volunteers and in patients with COPD. The investigators working hypothesis is that the use of post-extubation CPAP delivered via nasal cannulae in infants less than 18 months, post-bypass surgery will have better PaCO2 values than infants extubated on to oxygen therapy.

Terminal warm blood cardioplegia (TWBC) has been shown to enhance myocardial protection in adult patients. Even in pediatric patients, the use of cold blood cardioplegia followed by administration of TWBC will provide cardioprotective effect similar to adult patients. Histidine-tryptophan-ketoglutarate (HTK), is attractive for cardiac surgeons because it is administered as a single dose and is claimed to offer myocardial protection for a period of up to 180 minutes allowing performance of complex procedures without interruption. Merging the use of TWBC on the use of HTK cardioplegia, especially for pediatric cardiac cases, have not been investigated. This technique is expected to provide a longer ischemic time and a protective effect against reperfusion injury.

An adequate nutritional support after a cardiac surgery enhances the morbidity and mortality. After a cardiac surgery, the energy expenditure is estimated to be around 55 kcal/kg/d. The caloric intake is not the only important nutritional variable in PICU. The protein intake objective is around 1,5g/kg/d in order to reduce muscular catabolism. The aim of this study is to compare the impact of an isocaloric enteral diet, either fortified by milk concentration (in order to increase the protein intake) or by a supplement of maltodextrin and oil in children from 0 to 2 years, after surgery for congenital heart disease.

To evaluate the feasibility of performing a randomized pilot control trial of two diagnostic screening strategies for necrotizing enterocolitis in patients with congenital heart disease. Measures to evaluate will be the ability to obtain consent from patients, percentage of eligible patients that are able to be recruited, coordination of providers, estimation of degree of crossover and ability to perform the screening exams per protocol.