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CardioVascular and Interventional Radiology
Published in: CardioVascular and Interventional Radiology 5/2016

01-05-2016 | Clinical Investigation

Evaluation of Aneurysm Neck Angle Change After Endovascular Aneurysm Repair Clinical Investigations

Authors: Trong Binh Le, Mi Hyoung Moon, Yong Sun Jeon, Kee Chun Hong, Soon Gu Cho, Keun-Myoung Park

Published in: CardioVascular and Interventional Radiology | Issue 5/2016

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Abstract

Purpose

To evaluate the aneurysm neck angle changes and post-endovascular aneurysm repair (EVAR) complications.

Methods

We retrospectively analyzed 72 cases of elective EVAR for abdominal aortic aneurysm among 109 consecutive cases from December 2005 to April 2014. Patients were divided into angulated and non-angulated groups. The angulated group was defined as neck angulation ≥60°. Neck angle was evaluated pre- and post-EVAR during short- (within 1 month), mid- (3–6 months), and long-term (>1 year) follow-up. Aneurysm sac diameter change, aneurysm neck morphology other than angulation, endoleaks, and other post-procedural complications were also documented.

Results

A total of 34 patients were enrolled in the angulated group. There were no statistical differences in age, sex, follow-up duration, and aneurysm neck profile between the two groups (p > 0.05). Both groups showed statistically significant and consistent decreases in angulation during the follow-up period (p < 0.01). The angulated group revealed 22.45 % more straightening than the non-angulated group. Recoil of the Endurant device occurred in the angulated group. No statistically significant intergroup differences were observed in any endoleaks, complications, or re-intervention rates (p > 0.05). Pre-EVAR angle was the only predictor for post-procedural angle change (p < 0.001).

Conclusion

EVAR is applicable for patients with highly angulated aneurysm neck and provides consistent neck straightening over long-term follow-up. Recoil was evident in the angulated group using the Endurant device.
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Metadata
Title
Evaluation of Aneurysm Neck Angle Change After Endovascular Aneurysm Repair Clinical Investigations
Authors
Trong Binh Le
Mi Hyoung Moon
Yong Sun Jeon
Kee Chun Hong
Soon Gu Cho
Keun-Myoung Park
Publication date
01-05-2016
Publisher
Springer US
Published in
CardioVascular and Interventional Radiology / Issue 5/2016
Print ISSN: 0174-1551
Electronic ISSN: 1432-086X
DOI
https://doi.org/10.1007/s00270-015-1260-7

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