The structure of the pulmonary circulation in @entity215 with XXXX . A quantitative cineangiographic study.

@entity1 @entity215 @entity849 @entity358 @entity1146 @entity715
Cineangiograms of 172 @entity1 with @entity215 and @entity1146 were qualitatively and quantitatively analyzed retrospectively. FINDINGS: Twenty-eight (16%) @entity1 had congenital absence of the central and unbranched hilar portions of the left or right pulmonary artery or both, and thus had congenitally nonconfluent @entity358 . Five additional @entity1 (3%) with originally confluent @entity358 had nonconfluent ones because of an end-to-end surgical shunt, as did seven others (4%) because of @entity715 of one pulmonary artery. Among the 132 @entity1 with confluent right and left @entity358 , 70 (53% of 132) had incomplete arborization (distribution) of one or both, as did 23 (82% of 28) of those with congenitally nonconfluent @entity358 (P for difference = 0.005). Ten (36% of 28) of the latter group had fewer than 10 pulmonary vascular segments (normal is 20) in continuity with central @entity358 , compared with four (3%) of the former group. The proximal left and right @entity358 were small but variable in size in all groups (median value 1.05 McGoon ratio), but were largest in the @entity1 with confluent @entity358 . Seventy-nine (60% of 132) @entity1 with confluent left and right @entity358 had large aortopulmonary collateral arteries, as did 100% of those with congenitally nonconfluent @entity358 (P less than 0.001). The number of large aortopulmonary collateral arteries correlated inversely with the completeness of arborization of the left and right @entity358 (P less than 0.0001). Inferences: Most @entity1 with tetralogy and @entity1146 have gross morphologic @entity358 and differ quantitatively in this regard from those with tetralogy and @entity849 . The prevalences of the various types of these abnormalities are considerably interrelated.
