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Symptoms may start as soon as a baby is born or may not appear until later in life. They can include:

  • Cyanosis (blueish skin, lips or nails).
  • Excessive sleepiness.
  • Fast breathing or trouble breathing.
  • Fatigue (extreme tiredness).
  • Getting unusually tired or out of breath during exercise.
  • Heart murmur (a swishing sound made by the heart that may indicate abnormal blood flow).
  • Poor blood circulation.
  • Weak pulse or pounding heartbeat.

The signs and symptoms vary widely, depending on:

  • Age.
  • The number of heart defects (a person can be born with more than one defect).
  • The severity of the condition.
  • Type of defect.


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