article_snippet: Hannah said: 'It was my routine 20-week scan and they couldn't see the valve coming off the left hand side of the baby's heart. '
article_snippet: None of this affected the baby while the baby was inside Hannah but once the baby was delivered they wouldn't be able to get enough oxygen.'
article_snippet: Hannah and Gerard's baby had transposition of the great arteries,
article_snippet: a rare heart defect in which the two main arteries leaving the heart are reversed.
article_snippet: Because of the shock diagnosis the couple decided to find out the sex of the couple unborn baby, which the couple had planned to keep a surprise. '
article_snippet: Babies who have undergone heart surgery can never have a normal heart again.
article_snippet: Babies who have undergone heart surgery have a repaired heart,' said Hannah Green. '