Leslie Hamilton has been involved with the Safe and Sustainable review since the outset.
A cardiac surgeon, he spent 15 years working in the children's heart unit at the Freeman Hospital in Newcastle.
Mr Hamilton told ITV News that this was always going to be a difficult decision - but it is a decision that is being made to provide the best possible care.
Children's heart surgery is set to resume at Leeds General Infirmary after days of uncertainty over its future.
A health expert from the North East says an argument about the future of children's heart services in our region has wasted time and money.
The Children's Heart Federation says the interests of management at the LGI have been "put ahead of critically ill children".