Zlata, 15 months was diagnosed with Tetralogy of Fallot (TOF), an abnormality of the heart that predominantly affects the right side of the heart and results in inadequate blood flow to the lungs for oxygenation. TOF is a combination of four congenital abnormalities: ventricular septal defect, pulmonary valve stenosis, a misplaced aorta and a thickened right ventricular wall. She had a shunt operation in November 2017 and ready for her final repair performed in Voronezh.
Fedya, 3 years old, was born with only one working pump in his heart (single ventricle heart disease). He had a Fontan
