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Changes in aortic volumes following endovascular sealing of abdominal aortic aneurysms with the nellix endoprosthesis

Shaikh, U, Chan, TY, Oshin, O, McWilliams, RG, Fisher, RK, England, A and Torella, F 2015, 'Changes in aortic volumes following endovascular sealing of abdominal aortic aneurysms with the nellix endoprosthesis' , Journal of Endovascular Therapy, 22 (6) , pp. 881-885.

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Abstract

PURPOSE: To investigate the effects on aortic volumes of endovascular aneurysm sealing (EVAS) with the Nellix device. METHODS: Twenty-five consecutive patients (mean age 78±7 years; 17 men) with abdominal aortic aneurysms containing thrombus 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 thrombus. 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 thrombus had decreased by a mean 11 mL (95% CI 4.7 to 18.2, p<0.001). There were good correlations between changes in aneurysm and thrombus volumes (r=0.864, p<0.001), between the planning CT/EVAS time interval and the change in aneurysm volume (r=0.640, p=0.001), and between the planning CT/EVAS time interval and the change in thrombus 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.

Item Type: Article
Schools: Schools > School of Health Sciences > Centre for Health Sciences Research
Journal or Publication Title: Journal of Endovascular Therapy
Publisher: Sage Publications
ISSN: 1526-6028
Related URLs:
Funders: Non funded research
Depositing User: Dr Andrew England
Date Deposited: 30 Nov 2015 16:49
Last Modified: 30 Nov 2015 16:49
URI: http://usir.salford.ac.uk/id/eprint/37206

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