The high court will today reconsider the case of baby Charlotte Wyatt after her parents and doctors disagreed over whether she can be resuscitated.
Doctors caring for 14-month-old Charlotte are understood to be seeking a variation in the detail of Mr Justice Hedley's order giving them permission not to resuscitate her if her breathing stopped
It is thought a dispute has arisen between the doctors and Charlotte's parents - Darren Wyatt, 33, and his 23-year-old wife Debbie - over the baby's care regime.
The judge ruled on October 7 that any further "aggressive" treatment, even if necessary to prolong Charlotte's life, was not "in her best interests".
The court had heard medical evidence, disputed by the parents, that Charlotte "had no feelings other than continuing pain".
But Charlotte's parents, of Buckland, Portsmouth, said she has since shown signs of improvement, and they believe there is still a glimmer of hope.
They do not accept the opinion of doctors that she cannot see or hear and feels nothing but pain.
The judge had heard from paediatric experts that the baby, who weighed just a pound and measured only five inches when she was born three months premature at St Mary's hospital, Portsmouth, in October last year, had serious brain, lung and kidney damage, was fed through a tube, needed a constant supply of oxygen and was incapable of voluntary movement or response.
Whatever happened, she was not expected to live beyond a further year and was likely to succumb to a respiratory infection this winter.
Portsmouth hospitals NHS trust, which had to seek a court ruling in the absence of consent from the parents, has pledged that, in the event of another respiratory crisis, it will keep Charlotte alive long enough for them to be at her cotside during her final moments.
Today's hearing is expected to be held in private, followed by a ruling in open court.