Dr. Tim De Maayer

Tim De Maayer is a South African paediatrician and academic affiliated with the University of the Witwatersrand and Rahima Moosa Mother and Child Hospital in Johannesburg. His work is closely linked to the Wits Transplant Unit, where he contributes to advancing paediatric liver transplantation and complex hepatology care within the public health sector.

His research centres on paediatric gastroenterology and hepatology, with emphasis on acute liver failure, biliary atresia, cholestatic jaundice and liver transplantation outcomes. He has examined prognostic scoring systems, transplant service development, and strategies to improve early referral and survival. Complementary studies explore coeliac disease risk, novel biomarkers, and autoimmune associations in children.

De Maayer has also addressed critical nutritional challenges, including severe acute malnutrition, refeeding syndrome, and hospital-based nutritional risk screening. His contributions to national enuresis guidelines further reflect a commitment to practical, context-relevant guidance. Collectively, his scholarship strengthens evidence-based paediatric care in resource-constrained African settings.