With great sadness and heartache, we announce that on February 12, 2025, at the age of 52, Oleg Dzham, a well-known scientist in Ukraine and abroad, a pediatric surgeon, coloproctologist, Candidate of Medical Sciences, Senior Researcher of the Department of Surgical Correction of Congenital Malformations in Children of the Center for Neonatal Surgery of Malformations and Their Rehabilitation of the SI "All-Ukrainian Center for Motherhood and Childhood of the NAMS of Ukraine", suddenly passed away.