The mum of 12-year-old Archie Battersbee, says she's 'extremely disappointed' by the judge's ruling that his life support should end but says she will not give up on her son.

A judge has ruled that 12-year-old Archie Battersbee's life treatment should stop.

Mrs Justice Arbuthnot has ruled that Archie, who has been at the centre of a High Court life-support treatment dispute after suffering brain damage, is dead and that life support treatment should stop.

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Mrs Justice Arbuthnot on Monday ruled that Archie was dead and said doctors could lawfully stop treating him.

The judge said in a written ruling: "I find that Archie died at noon on May 31 2022, which was shortly after the MRI scans taken that day.

Echo: Hollie Dance (PA)Hollie Dance (PA)

"I find that irreversible cessation of brain stem function has been conclusively established.

"I give permission to the medical professionals at the Royal London Hospital to cease to ventilate mechanically Archie Battersbee."

Hollie Dance said, after the ruling, in a statement: “I am devastated and extremely disappointed by the judge’s ruling after weeks of fighting a legal battle when I wanted to be at my little boy’s bedside.

“Basing this judgment on an MRI test and that he is ‘likely’ to be dead, is not good enough. This is believed to be the first time that someone has been declared ‘likely’ to be dead based on an MRI test.

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“The medical expert opinion presented in court was clear in that the whole concept of ‘brain death’ is now discredited, and in any event, Archie cannot be reliably diagnosed as brain-dead.

“I feel sickened that the hospital and the judge have failed to take the wishes of the family into consideration.

Echo: Archie's family leaving court (PA)Archie's family leaving court (PA)

"I do not believe Archie has been given enough time. From the beginning I have always thought ‘why the rush?’

“His heart is still beating, he has gripped my hand, and as his mother, I know he is still in there. Until it’s God’s way I won’t accept he should go. I know of miracles when people have come back from being brain dead.

“This case raises the significant moral, legal and medical questions as to when a person is dead. What does this ruling today tell us about where our society is at? We intend to appeal and will not give up on Archie.”