A nine-year-old boy who inspired landmark changes to Northern Ireland's organ donation laws has spent his first night at home following a heart transplant, arriving to cheers from friends and neighbours in west Belfast.
Dáithí Mac Gabhann received his transplant on 21 July 2026 at Freeman Hospital in Newcastle upon Tyne, ending an eight-year wait for the life-saving procedure. He departed the hospital on 4 August 2026 after two weeks of initial recovery, with staff giving him a standing ovation as he left.
Crowds lined the street as Dáithí returned to his home, with his father Máirtín Mac Gabhann describing the moment as deeply emotional.

It was absolutely incredible seeing everybody here today to welcome Dáithí home,Máirtín said.
How did Dáithí's condition develop?
Dáithí was born in 2016 with hypoplastic left heart syndrome, a congenital condition in which the left side of his heart failed to develop properly. This diagnosis set him on a path toward transplantation, requiring years of medical care and family advocacy.

What is Dáithí's Law and how did it come about?
In 2023, Northern Ireland introduced legislation that fundamentally altered its approach to organ donation. The law, formally known as the Organ and Tissue Donation (Deemed Consent) Act (Northern Ireland) 2022, established an opt-out system whereby adults automatically become potential organ donors unless they explicitly choose not to participate. The legislation took effect on 1 June 2023 and was named Dáithí's Law in recognition of the family's years of campaigning on the issue. The law still allows people to opt out or change their decision at any time.
What did Dáithí's father say about the transplant?
Speaking as the family arrived home, Máirtín emphasised the importance of honouring the donor and their family.
We don't know how we will ever repay that, but we will show gratitude for the rest of our lives,he said. He described Dáithí as deeply moved during the journey home, noting that
he's just so grateful to hereas he got off the aeroplane and ambulance.

Máirtín reflected on how the family's mission has evolved following the transplant.
The campaign for organ donation, it doesn't end, it changes slightly. Before, we were desperate for the gift of a new heart. Now we show people how transformational organised donation is, the benefits of organ donation and the difference it can make, not just to the individual but to their families, to their friends, to the people around them.
He added that
Dáithí's donor and their families, they've saved so much more than Dáithí, they've saved our whole family, our friends and the whole community around us.
What happens next for Dáithí?
According to reporting from a national broadcaster, Dáithí will remain in a limited form of isolation for several more weeks as his body adjusts to the transplanted organ. He is scheduled to return to school on 1 October 2026.
Key Facts
- Dáithí Mac Gabhann received a heart transplant on 21 July 2026 after an eight-year wait, with surgery performed at Freeman Hospital in Newcastle upon Tyne
- Dáithí's Law, named after his family's campaign, introduced an opt-out organ donation system in Northern Ireland that took effect on 1 June 2023
- He was born in 2016 with hypoplastic left heart syndrome, a condition in which the left side of the heart does not develop properly
- Dáithí departed hospital on 4 August 2026 and has now returned home to west Belfast for continued recovery







