Secondary Fill Minimizes Gutter Size in Chimney EVAS Configurations In Vitro.

ABSTRACT: PURPOSE:To investigate in an in vitro model if secondary endobag filling can reduce gutter size during chimney endovascular aneurysm sealing (chEVAS). MATERIALS AND METHODS:Nellix EVAS systems were deployed in 2 silicone juxtarenal aneurysm models with suprarenal aortic diameters of 19 and 24 mm. Four configurations were tested: EVAS with 6-mm balloon-expandable (BE) or self-expanding (SE) chimney grafts (CGs) in the renal branches of both models. Balloons were inflated simultaneously in the CGs and main endografts during primary and secondary endobag filling and polymer curing. Computed tomography (CT) was performed immediately after the primary and secondary fills. Cross-sectional lumen areas were measured on the CT images to calculate gutter volumes and percent change. CG compression wa

SUBMITTER: van Schaik TG 

PROVIDER: S-EPMC6330694 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature