Polar orientation of renal grafts within the proximal seal zone affects risk of early type Ia endoleaks after chimney endovascular aneurysm repair

摘要

ObjectiveThe objective of this study was to describe the polar orientation of renal chimney grafts within the proximal seal zone and to determine whether graft orientation is associated with early type Ia endoleak or renal graft compression after chimney endovascular aneurysm repair (ch-EVAR).