Baby Tiarna Middleton, who last week became the youngest person in the world to be given a Berlin heart, has passed away at the Freeman Hospital in Newcastle
The 18-day-old baby girl was awaiting a heart transplant at the hospital.
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Patient thanks the Great North Air Ambulance Service who quickly treated him and flew him to hospital.
The 16-year-old was beaten while watching a World Cup football match in 2014.
A North Yorkshire teenager is raising money for the Air Ambulance after they tried to save her friend.