Lansiwyd adolygiad annibynnol o wasanaethau cardiaidd i blant ym Mryste yn dilyn pryderon nifer o deuluoedd am y driniaeth a'r gofal yr oedd eu plant yn derbyn. Cafodd ei sefydlu yn 2014 gan Gyfarwyddwr Meddygol GIG Lloegr i gynnal adolygiad trylwyr o wasanaethau cardiaidd i blant yn yr ysbyty a'i glinigau allgymorth, er mwyn dysgu gwersi a chyfrannu at y gwaith o ddatblygu safonau gofal cenedlaethol. Arweiniwyd yr adolygiad gan Eleanor Grey QC, bargyfreithiwr annibynnol a oedd gynt yn Gwnsler i'r Adolygiad Cyhoeddus o lawdriniaethau'r galon ar blant yn Ysbyty Brenhinol Bryste rhwng 1984 a 1995.
An independent review of children’s cardiac services in Bristol was triggered by the concerns of a number of families about the treatment and care received by their children. It was set up, in 2014, by the Medical Director of NHS England, to carry out a thorough review of children’s cardiac services at the hospital and its outreach clinics, to learn lessons and to contribute to the development of national standards of care. The review has been led by Eleanor Grey QC, an independent barrister who was formerly Counsel to the Bristol Royal Infirmary Public Inquiry into children’s heart surgery at the Bristol Royal Infirmary between 1984 and 1995.