On December 5, 2023, The Princess of Wales, Patron of Evelina London Children’s Hospital, visited St Thomas' Hospital to open the new Children’s Day Surgery Unit of Evelina London. The children’s day surgery unit is especially for children and young people who have small (minor) procedures and do not need to stay overnight. Evelina London cares for around 104,000 children and young people each year across its dedicated children’s services, in hospital and in the community.