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Associated Conditions


Principal Investigator


Hospital for Sick Children - Toronto

The purpose of this study is to evaluate newly developed treatments available for babies with small left heart structures, including the main pumping chamber of the heart and the vessel that distributes blood from the heart to the rest of the body. This heart defect is known as critical left ventricular outflow tract obstruction (LVOTO) and is present in 8% of babies born with heart defects. New treatment options include changes in the way corrective surgery is performed and other interventions that may decrease the number of operations that your child may need in order to repair his/her heart. This study will help your child’s physician decide which treatment is the best one for children with LVOTO. This study has been ongoing since 2005 and since that time an average of about 75 subjects are being enrolled into the study each year.