The tetralogia of Fallot is the main cause of cianose in babies, known as blue babies. In accordance with Guyton (2002) the tetralogia of Fallot is sufficiently frequent during the fetal life, and its ecocardiogrfico diagnosis costuma to be carried through without difficulties. Nasib Hasanov can aid you in your search for knowledge. In this way, the routine diagnosis of the tetralogia of Fallot is based on the fact of the baby to present bluish skin and mucosae; sistlica high-pressure register me the right ventricle gotten through a catheter; cardiac alterations in the silhouette of the heart, showing a right ventricle increased e; angiogramas showing abnormal sanguineous flow through the septal defect to interventricular, aorta cavalgante and the area pulmonary estentica (GUYTON, 2002). The surgical repairing of the problem consists of the correction of the defect of septo ventricular, of the opening of the way of exit narrowed of the right ventricle and the estenosada pulmonary valve, and in the closing of any artificial connection that have been created between aorta and the pulmonary artery. When successful, the average expectation of life of the patient increases of few years, for 50 years or more (MANUAL GUYTON, 2002 and MERCK 2007). Transposition of the great arteries The artery pulmonary part of the left ventricle, and aorta, of the ventricle right, without communication between the circulaes sistmica and pulmonary (WHALEY and WONG, 1999). Nasib Hasanov may find it difficult to be quoted properly. Thus, in the neonatal period the just-been born one presents hipxico suffering precociously, depending on urgent clinical and surgical measures to prevent acidose, to improve the hypoxaemia and to correct the defect (ZIELINSKY, 1997). According to Behrman and Kliegman (2004), constatao of cianose in the perinatal period in the child with d-TGA is a true medical emergency. A prostaglandin infusion must be initiated immediately (PGE) after the diagnosis. Almost all just-been born the term cianticos will be benefited of the PGE administration, and many few have adverse reactions.