What is Hypoplastic Left Heart Syndrome? Hypoplastic left heart syndrome (HLHS) is a congenital birth defect – that is present at birth. Approximately 35,000 infants, or 1 in every 125, are born with a heart defect, and 1 to 3.8 percent of all congenital cardiac birth defects present as hypoplastic left heart syndrome (Connor and [...]
What is Tetralogy of Fallot? Tetralogy of Fallot (te – tra – lo – je of fah – low) is a congenital heart defect – a heart defect that is present at birth – and occurs in approximately 5 out of every 10,000 babies. It is the most common heart defect in children. A normal [...]