|Pre-existing aortic wall injury|
|Large or rapidly expanding||44 (28%)|
|Position of first implanted stent|
|Minor malposition||13 (8%)|
|Major malposition||3 (2%)|
|Final appearance of aorta|
|Therapeutic tear||1 (1%)|
|New aneurysm||0 (0%)|
|Final coverage of aortic wall injury (Treatment group only)|
|Minor endoleak||7 (8%)|
|Moderate or large endoleak||0 (0%)|
Values are n (%).
↵∗ Includes 7 patients in the Treatment group who were treated for small, localized intimal tears with diameters <1/4 the aortic diameter identified by the implanting physicians after balloon dilation of the coarctation, but who were not classified by the core laboratory as having pre-existing aortic wall injury by trial definition.