Babies with this defect may have:
- Sudden heart failure
- A major rise in the acid level of the blood and tissues as the flow of blood to far parts of the body is impaired. This type of imbalance is marked by sickly sweet smelling breath and vomiting.
Older children may have:
- High blood pressure in general or high blood pressure in the arms compared to the legs
- A soft sound heard in the lungs, usually louder in the back. This often occurs over where the defect is.
- Pulses in the legs can be felt but are softer and delayed compared with those in the arms.
- Increased blood flow through the arteries of the chest visible on X-rays. This usually doesn't appear before the child is 10 to 12 years old.