For the first time, an operation was performed in Minsk to correct a heart defect of a newborn child weighing a little more than one kilogram. The baby was born ten weeks early. The doctors of the Republican Center for Pediatric Surgery operated on such a tiny patient for the first time. The doctors eliminated the narrowing of the pulmonary artery using a minimally invasive method. The operation lasted an hour and a half and was successful. The surgeons are satisfied with the condition of the baby.