An atrioventricular canal is a congenital heart defect that connects chambers of your child’s heart that shouldn’t be connected. Atrioventricular canals usually require surgical treatment. It usually ...

Atrioventricular septal defect is a developmental irregularity in which a hole connects two or more chambers in your child’s heart. This hole may connect the top two, the bottom two, or all four ...

Atrioventricular septal defects (AVSD) comprise a spectrum of congenital heart malformations characterised by a deficiency of the atrioventricular septum, often resulting in a common atrioventricular ...

Since 1990, the mortality rate for children born with Down syndrome and a congenital heart defect has more than halved. This has been shown by a study by the University of Gothenburg. However, the ...