Changes in Aortic Volumes Following Endovascular Sealing of XXXX With the Nellix Endoprosthesis.

@entity1 @entity715 @entity439 @entity1028
PURPOSE: To investigate the effects on aortic volumes of endovascular @entity439 sealing (EVAS) with the Nellix device. METHODS: Twenty-five consecutive @entity1 (mean age 78  7 years; 17 @entity1 ) with @entity1028 containing @entity715 were treated with EVAS. Their pre- and post-EVAS computed tomography (CT) scans were reviewed to document volume changes in the entire aneurysmal aorta, the lumen, and the intraluminal @entity715 . The changes are reported as the mean and 95% confidence interval (CI). RESULTS: Total aortic volume was greater on postoperative scans by a mean 17 mL (95% CI 10.0 to 23.5, p<0.001). The volume occupied by the endobags was greater than the preoperative lumen volume by a mean 28 mL (95% CI 24.7 to 31.7, p=0.002). Postoperatively, the aortic volume occupied by @entity715 had decreased by a mean 11 mL (95% CI 4.7 to 18.2, p<0.001). There were good correlations between changes in @entity439 and @entity715 volumes (r=0.864, p<0.001), between the planning CT/EVAS time interval and the change in @entity439 volume (r=0.640, p=0.001), and between the planning CT/EVAS time interval and the change in @entity715 volume (r=0.567, p=0.003). CONCLUSION: There are significant changes in aortic volumes post EVAS. These changes may be a direct consequence of the technique and have implications for the planning and performance of EVAS.
