[Uncorrected Tetralogy of Fallot--a case report of a 69-year-old patient].

Tetralogy of Fallot (ToF) is the most common cyanotic congenital heart defect. The actual treatment relies on cardio-surgery--complete correction within the infant age. Without surgery only 10% of subjects survived 3rd decade and only 3-5% of subjects were able to survive until their 40th.