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REVIEW  THE FATE OF AORTA AFTER ENDOVASCULAR ANEURYSM REPAIR 

The Journal of Cardiovascular Surgery 2019 April;60(2):186-90

DOI: 10.23736/S0021-9509.19.10878-6

Copyright © 2019 EDIZIONI MINERVA MEDICA

lingua: Inglese

Current evidence on aortic remodeling after endovascular repair

Dimitrios KAPETANIOS 1 , Ramin BANAFSCHE 1, Thomas JERKKU 1, Konstantinos SPANOS 2, Ulrich HOFFMANN 1, Beatrice FIORUCCI 2, Barbara RANTNER 1, Nikolaos TSILIMPARIS 2

1 Department of Vascular Surgery, Ludwig-Maximilian University Hospital, Munich, Germany; 2 Department of Vascular Medicine, German Aortic Center, University Heart Center Hamburg, Hamburg, Germany



Anatomical changes after endovascular repair (EVAR) of abdominal aortic aneurysms (AAAs) are thoroughly studied as they could affect the long-term postoperative outcome. The aim of the present study was to review the literature and summarize the recent data regarding the aortic remodeling and its clinical significance. A continuous aortic neck expansion is observed after EVAR and is more rapid at the first month and during the third postoperative year. This aortic neck dilation is not influenced by the type of proximal stent-graft fixation, is comparable to open surgical aneurysm repair and is most probably related with the natural progression of aneurismal disease. Aortic neck angulation reduces significantly immediately after EVAR and then continues to reduce slowly and gradually. Neck angulations ≥60° have a greater reduction compared to neck angulations <60°. An expansion of the common iliac arteries at the distal landing zone is also observed after EVAR and is more prominent in the first six postoperative months. A postoperative increase of the distance between superior mesenteric artery and iliac bifurcations (aortoiliac elongation) is described and is associated with increased type I endoleaks and reinterventions. The aneurysm sac diameter most frequently reduces after EVAR in absence of an endoleak and this aneurysm sac regression has been associated with the stent-graft type.


KEY WORDS: Aortic aneurysm, abdominal - Endoleak - Vascular remodeling

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