Dr. Leong Ming Chern is a distinguished Consultant Paediatric Cardiologist and Deputy Head of the Paediatric and Congenital Heart Centre at the National Heart Institute (IJN). He is a leading expert in the long-term management of adults with congenital heart disease (ACHD) and pulmonary hypertension, offering comprehensive cardiac care from infancy through adulthood. His proficiency extends to general and interventional paediatric cardiology, including transcatheter pulmonary valve implantation and managing cardiac conditions during pregnancy. Dr. Leong actively contributes to research and holds leadership roles, including a council membership with the Malaysian Society of Paediatric Cardiology, underscoring his commitment to advancing congenital heart disease care.