When Ryan Marquiss was born with his heart outside of his body, doctors didn’t expect him to survive.
It is an incredibly rare condition and usually babies are stillborn or die within three days.
His heart also hadn’t developed and so he only had half a heart - a combination of defects which is so rare that Ryan is the only one of his kind in the world.
Doctors advised his devastated parents to terminate the pregnancy when his mother was just 12 weeks pregnant, but they bravely refused.
And it is a gamble that has paid off, as Ryan is just about to celebrate his third birthday.
Mrs Marquiss, 34, said: ‘We wanted to let nature take its course, so we refused to have the termination.
‘We knew it would be a miracle if he survived the birth but we were unwilling to take matters into our own hands.
‘The doctors told us that no baby with Ryan’s combination of defects had ever survived, so the fact that he is here with us today, is just amazing. He really has astounded everyone.’
Doctors discovered the problem at 12 weeks into his mother’s pregnancy.
The incredibly rare defect, ectopia cordis, affects only eight in every million births and ninety percent of these are stillborn or die within three days.
And adding to that Ryan was also suffering from hypoplastic right heart syndrome, where only the left side of the heart has developed properly.
Mrs Marquiss, who lives with husband Henry, 34, and their other children Natalie, seven, and Ainsley, five, in Pennsylvania, USA, said: ‘All the odds were stacked against him. We knew that it was a miracle that he had been born alive with his heart outside his body, but then to have another life-threatening condition of only having half a heart meant that everything was against him surviving.’
Doctors at the Children’s National Medical Centre in Washington delivered him at the end of February 2009 by caesarian, helped by a team of 30 medical professionals.
Dr Mary Donofrio, Director of the fetal heart programme at the Children’s National Medical Centre said: ‘If he survived the birth his exposed heart likely would become infected and kill him. Even if infection didn’t happen his heart had one working ventricle and he would require open heart surgery to rewire the blood flow through it.
‘I told the family right from the start that if he survived, it was a miracle.’
‘He just kept on fighting. He refused to die, and he kept on proving everyone wrong.
‘He will need some sort of chest protection operation in the future but it may be overcome by just wearing some sort of protective padding when he plays sport. He won’t be a competition athlete, but we are hoping he can run around on the playground and climb trees like any other child.’