The monograph summarizes many years of experience in the study and treatment of one of the most complex heart defects - Fallot's tetrad at the Scientific Center for Surgery of the Russian Academy of Medical Sciences. It covers a wide range of problems - anatomy, clinic, new original methods of correcting vice, prevention of postoperative complications and the possibility of improving the quality of life of patients. Designed for cardiac surgeons, specialists in the treatment of heart diseases, clinical physiologists, doctors of a different profile.