The Chief Executive of the trust which runs the children's heart unit in Leeds says she is "extremely confident" the unit is safe.
Children's surgery was suspended last Thursday.
“I am extremely confident that this service is safe and effective and should recommence at the earliest opportunity. I want partner organisations to be as confident in the service as I am."
NHS England and the Care Quality Commission have confirmed that Children’s Heart Surgery Services at Leeds General Infirmary are safe.
Children's heart surgery is set to resume at Leeds General Infirmary after days of uncertainty over its future.
The Children's Heart Federation says the interests of management at the LGI have been "put ahead of critically ill children".