title: [Angiographic study of pulmonary circulation in tetralogy of Fallot with pulmonary atresia].
abstract: OBJECTIVE
  To identify the types of pulmonary vascular blood supply in tetralogy of Fallot with pulmonary atresia by use of hemodynamic study.
  
  
  METHODS
  Fifty-six patients with tetralogy of Fallot and pulmonary atresia, and ages ranging from 20 days to 4 years, underwent cineangiocardiographic study with contrast medium injections in the following vascular structures: 1) wedged pulmonary vein; 2) aortopulmonary collaterals; 3) thoracic aorta; and 4) ductus arteriosus or systemic-pulmonary shunt.
  
  
  RESULTS
  In the 56 patients studied, pulmonary blood was supplied as follows: in 15, by aortopulmonary collaterals; in 36, only by the ductus arteriosus; and in 5, by the ductus arteriosus and aortopulmonary collaterals. The patients were classified into 6 types depending on the type of pulmonary vascular perfusion and the presence or absence of vascular structures that compose the pulmonary circulation in tetralogy of Fallot with pulmonary atresia.
  
  
  CONCLUSIONS
  This type of approach enables the obtainment of information necessary for the correct clinicosurgical management of patients, due to the great complexity and extreme variability of the pulmonary blood supply in tetralogy of Fallot with pulmonary atresia.
authors.affiliation: Instituto Nacional de Cardiologia Laranjeiras, Rio de Janeiro, RJ.
authors.forename: Marco Aurélio
authors.initials: MA
authors.lastname: Santos
authors.forename: Vitor Manuel Pereira
authors.initials: VM
authors.lastname: Azevedo
mesh_terms: D001027:Aortography; D002675:Child, Preschool; D002932:Cineangiography; D003097:Collateral Circulation; D006439:Hemodynamics; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D018633:Pulmonary Atresia / Q000150:complications / Q000000981:diagnostic imaging* / Q000503:physiopathology; D011652:Pulmonary Circulation; D013771:Tetralogy of Fallot / Q000150:complications / Q000000981:diagnostic imaging* / Q000503:physiopathology