Oxford-based experts leading the trial said the skin patch acts as a "window" to spot rejections.
The UK has failed to keep pace with the rest of the world. Can it regain its status, and how?
Mark Baker says there was "no other choice" for him than to have a heart transplant.
George Collyer says he collapsed and was given CPR by another runner during the race in 2024.
Tony Wright says the experience has given him a new perspective of the emergency services.
Aimee, from South Yorkshire, returns to Cambridge to thank staff who cared for her and baby Jessica.
Wendy J. Tomlin-Hess says it is a "thank you" to the Royal Papworth for saving her brother's life.
The hospital is urging for anyone who has one of the devices to return it as soon as possible.
The specialist hospital in Cambridgeshire reduces the numbers waiting 18 weeks for treatment.
