PURPOSE: To differentiate between the phenomenon of collateral perfusion from a side branch versus graft-related @entity1070 after endovascular repair of @entity1028 ( @entity1028 ), with respect to @entity439 size and prognosis. METHODS: We successfully treated 64 @entity1028 @entity1 with endovascular grafting. We followed all the @entity1 postoperatively with spiral computed tomography at one, three, six and 12 months, and biannually thereafter. We measured @entity439 diameters preoperatively and postoperatively. We calculated preoperatively the relation of maximum aortic diameter (D) to the @entity715 -free lumen diameter (L) expressed as an L/D ratio. Median follow-up was 15 months. RESULTS: Sixteen @entity1 had collateral perfusion during follow-up. We successfully treated two @entity1 with embolization. One @entity1 showed resolution of collateral perfusion after we stopped warfarin treatment. Two @entity1 died of unrelated causes during follow-up. One @entity1 was converted to surgical treatment, and two @entity1 showed spontaneous resolution of their collateral perfusion. The group of @entity1 with perfusion showed no statistically significant change of their aortic diameter on follow-up. The group of @entity1 without perfusion showed a median decrease in aortic diameter of 8mm (p < 0.0001) at 18 months postoperatively. The group of @entity1 with perfusion had significantly less @entity715 in their @entity439 sac preoperatively than the group without perfusion, as expressed by the L/D ratio (mean L/D 0,61 versus 0,78, respectively; p=0.0021.) CONCLUSION: There was no significant increase in aortic diameter on an average 18 months postoperatively despite persistent collateral perfusion. This may indicate a halted disease progression in the short term. Embolization of collateral vessels is associated with risk of @entity451 . We recommend a conservative approach with close observation if @entity439 diameter is stable.

Persistent collateral perfusion of XXXX after endovascular repair does not lead to progressive change in @entity439 diameter.

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity451 :: ('MESH:C536857', 'Disease') :: ['paraplegia'] @entity1070 :: ('MESH:D057867', 'Disease') :: ['endoleaks'] @entity439 :: ('MESH:D000783', 'Disease') :: ['aneurysm'] @entity715 :: ('MESH:D013927', 'Disease') :: ['thrombus'] @entity1028 :: ('MESH:D017544', 'Disease') :: ['abdominal aortic aneurysms', 'AAA']
@entity1028 :: (MESH:D017544,Disease) :: ['abdominal aortic aneurysm']
