Mrs Courtney-Thompson said the couple wanted to work with the hospital to change things.
“We don’t want anyone else to go through this,” she said. “If anything good can come out of this it can be to save another child.”
Prof Brent said: “What happened to baby Willow was deeply tragic, and nothing I say can begin to diminish the pain that I know Willow’s parents and family will be feeling.
“We have ensured that important lessons have been learnt about the care we provided to Willow, and we have made changes to our clinical practice to do everything possible to prevent this from happening again.
“There were critical shortfalls in Willow’s care, and we didn’t get it right – for that, I am truly sorry.”