
As do many kids with Down Syndrome, Ahmed has a complete AV canal, which means that the chambers of his heart are connected. As well, he has Tetralogy of Fallot, which is a complex combination of four heart defects. Also, as he is already a bit older, he is suffering from the complications of his Tetralogy of Fallot and this is why his oxygen saturation keeps being fairly low. Because of all of this, the doctors decided to have the surgery this week.