Influence of Timing of Switch Operation in Transposition of Great Arteries
Transposition of Great VesselsTransposition of great vessels are usually corrected by an arterial switch operation. This operation is often done during the first week of life as surgical delays lead to deconditioned left ventricle. On the other hand early surgery carries also risks as neonatal physiology may have problems adapting to an intervention under cardiopulmonary bypass, possible pulmonary hypertension. Arterial switch operation between 2008 and 2020 done at our center will be reviewed. Primary outcome will be mortality or severe postoperative morbidity. Patients will be divided in 2 groups according to the presence or absence of the primary outcome. After propensity score matching, they will be analysed according to the timing of operation.
Genetic Determinants of Congenital Heart Disease Outcomes
Congenital Heart DiseaseHypoplastic Left Heart Syndrome2 moreThe purpose of this study is to examine the role of genetic variation in the oxidative stress response on critical perioperative and short-term outcomes after neonatal heart surgery. The goals will be to determine 1) if the oxidative stress pathway is an important one for therapeutic intervention in neonates with severe congenital heart defects and 2) if variants in the oxidative response pathway can be used to identify patients at increased risk for adverse outcomes.
Late Function After Surgery for Transposition of the Great Arteries
Transposition of Great VesselsThe investigators proposed to review the exercise tolerance, cardiac function, and quality of life in patients born with transposition of the great arteries that have undergone surgery with either the Mustard or Senning procedure. Participants will complete a questionnaire. The investigators will review the participants' recent cardiac function testing which will assess their current health status. These tests include an echocardiogram, a metabolic exercise stress test, cardiac imaging, and a 24-hour Holter monitor. This collection of testing results will be compared specifically with previously acquired data during the first phases of this study (published in 2001 and 2007).
Characterization of the Cardiac Reinnervation of Patients With Transposition of the Great Arteries...
Congenital Heart DiseaseCongenital Heart Defect1 moreCardiac denervation is inherent to the arterial switch (ASO) technique for the repair of transposition of the great arteries (TGA) and the long term reinnervation process has not been studied. We sought to describe the reinnervation status of adult patients long after the ASO, to identify areas of myocardial perfusion/innervation mismatch and to assess the relation of innervation status and exercise capacity.
Myocardial Contrast Echocardiography in Congenital Heart Disease
D-Transposition of Great ArteriesTetralogy of FallotPatients with congenital heart disease in whom the right ventricle is exposed to pressure or volume overload show progressive systolic dysfunction of the right ventricle, the fact of which conveys substantial morbidity and mortality. The aim of this study is to investigate the myocardial perfusion in these patients by myocardial contrast echocardiography (MCE) in order to determine whether disturbed blood flow plays a role in the development of right ventricular systolic dysfunction.
MRI Study After Arterial Switch Operation in Patients With Transposition of the Great Arteries
Transposition of Great VesselsSurgeryThis study involves adolescents operated with arterial switch procedure for transposition of the great arteries during the neonatal period. The purpose is to evaluate the coronary arteries and direct and indirect findings of coronary artery disease/complications with 3 tesla magnetic resonance imaging.
Cardiovascular MRI and Cardiopulmonary Exercise Capacity After Neonatal ASO) in Young Adults
Transposition of the Great ArteriesArtery Switch OperationMagnetic Resonance Imaging of the heart at rest and stress conditions relative to the cardiopulmonary exercise capacity in young adults after neonatal surgery for transposition of the great arteries.
A Retrospective Comparison of the Efficacy and Safety of Celsior® in Pediatric Cardiac Surgery for...
Transposition of Great VesselsCelsior® is an organ preservation solution used for the harvesting and the preservation of solid organs. Its use as a crystalloid cardioplegia solution has been established recently. Its main advantage is the long duration of myocardial protection. Compared to the other cardioplegia solutions, it allows a reduced amount of solution administered during the surgery and fewer interruptions during the intervention for the administration of supplemental doses of cardioplegia for long and complex operations. The objective of this register is to compare the safety and the efficacy of Celsior® to the old cardioplegia solution Saint-Thomas used as cardioplegia solution in surgery of the transposition of great vessels, the arterial switch operation.
NIRS in Congenital Heart Defects - Correlation With Echocardiography
Congenital Heart DefectSingle-ventricle9 moreNeonatal patients with congenital heart defects (CHD) have changing physiology in the context of transitional period. Patients with CHD are at risk of low perfusion status or abnormal pulmonary blood flow. Near infrared spectroscopy has been used in neonatal intensive care units (NICU) to measure end-organ perfusion. The investigator plan on monitoring newborns with CHD admitted to the NICU with NIRS and echocardiography during the first week of life and correlate measures of perfusion from Dopplers to cerebral and renal NIRS.
Haemodynamics and Function of the Atria in Congenital Heart Disease by Cardiovascular Magnetic Resonance...
Coarctation of the AortaTetralogy of Fallot1 moreThe purpose of this study is to determine whether patients with repaired congenital heart disease show differences in size or function of their heart atria compared to normal controls and depending on the nature of their heart disease.