A 16-year-old girl from Wales who made history when, as a baby, she had a donor heart grafted onto her own has made a full recovery.
Doctors say Hannah Clark's own heart is now in perfect working order three-and-a-half years after her "piggy-back" donor heart was removed when her body started to reject it.
The original operation in 1995 saved her life because she had cardiomyopathy, a condition which made her heart double in size and risk giving out within a year.
But after her body started rejecting the donor heart because of the drugs she had to take, doctors decided the only option was to disconnect the donor organ.
They found Hannah's own heart had recovered enough to cope on its own and without daily medication.
Sir Magdi Yacoub, the pioneering surgeon who performed Hannah's original transplant when she was two, says he is "surprised and delighted".