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Tiny Hero: UK's Youngest Donor Recipient Saved in Womb
21 Apr
Summary
- Baby received a life-saving blood transfusion while still in the womb.
- The procedure occurred at 16 weeks of gestation due to parvovirus.
- Donors for this rare transfusion must meet specific O-negative criteria.

In an unprecedented medical achievement, Arthur Ransom is recognized as the UK's youngest blood donor recipient. The infant received a vital intrauterine transfusion when he was merely 16 weeks old and the size of an apple, as his organs were failing. This complex procedure was necessitated by a parvovirus infection, which caused severe anemia and fluid buildup around his heart.
The intricate transfusion, guided by ultrasound, delivered crucial oxygen to Arthur's developing body. It successfully reduced the strain on his heart and organs, allowing him to recover in the womb before being born in January 2026. His mother, Maisie, shared her profound gratitude for the specialized blood donors.
Intrauterine transfusions (IUTs) are exceedingly rare, with only about 180 units issued annually by the NHS. Donors must meet stringent criteria: being male, having O negative blood, and testing negative for cytomegalovirus. These specific requirements highlight the critical nature of donor generosity in saving lives like Arthur's.