The remarkable survival of a 4-year-old boy who was expected to die shortly after his life support was removed has not only “confounded” medical expectations but raised “challenging questions” about how the courts intervene in disagreements between doctors and parents over the treatment of ill children.

Months before, the BBC reports, the High Court ruled that life-sustaining ventilation was not in the best interest of the child – referred to as NR in court records – after hearing evidence from doctors treating him. The boy was born with severe brain abnormalities and his health was deteriorating.