NDLI: Endovascular repair of bilateral isolated common iliac artery aneurysms with unsuitable anatomy utilizing an aortic bifurcated unibody endograft and modified sandwich technique to preserve pelvic blood flow: a case series

Content Provider	Springer Nature : BioMed Central
Author	Liao, Haodong Zhou, Enquan Tang, Yongjiang He, Chunshui
Abstract	Bilateral isolated common iliac artery aneurysms (CIAAs) are rare, and endovascular repair of CIAAs has emerged as an alternative to traditional open surgical repair. The primary goal of therapy is to exclude the aneurysm sac while maintaining perfusion of at least one internal iliac artery (IIA) to prevent pelvic ischemia. Although the iliac branch device (IBD) has improved the feasibility of preserving the IIA, its applicability is limited to a specific subset of aneurysm anatomy. We present a case series of three patients with bilateral isolated CIAAs in whom preoperative CT scans revealed an absence of a landing zone, the diameter of proximal CIA diameter was less than 13.0 mm, and normal diameter of the nonaneurysmal infrarenal aorta, making it challenging to use an IBD alone or a standard bifurcated aortic endograft to provide a proximal landing zone for iliac artery stenting. To overcome the small diameter of the infrarenal aorta, we implanted an aortic bifurcated unibody endograft. Then, we utilized a balloon-expandable covered stent-graft with overdilation as a modified sandwich technique to create an “eye of the tiger” configuration to prevent gutter leakage. The final angiography performed during the procedure revealed successful exclusion of the aneurysms, with blood flow to the right IIA and no type III endoleak. During the postoperative follow-up period, no patients exhibited symptoms associated with pelvic ischemia. There were no endoleaks or sac expansions on the two-year follow-up CT scans, and all external and internal iliac graft limbs were patent. This study demonstrated that a combination of an aortic bifurcated unibody endograft and a modified sandwich technique can effectively treat bilateral isolated CIAAs with certain anatomical constraints.
Related Links	https://cardiothoracicsurgery.biomedcentral.com/counter/pdf/10.1186/s13019-024-02674-2.pdf
Ending Page	8
Page Count	8
Starting Page	1
File Format	HTM / HTML
ISSN	17498090
DOI	10.1186/s13019-024-02674-2
Journal	Journal of Cardiothoracic Surgery
Issue Number	1
Volume Number	19
Language	English
Publisher	BioMed Central
Publisher Date	2024-04-15
Access Restriction	Open
Subject Keyword	Cardiac Surgery Thoracic Surgery Endovascular repair Isolated common iliac artery aneurysm Internal iliac artery Modified sandwich technique Case report
Content Type	Text
Resource Type	Case study
Subject	Surgery Cardiology and Cardiovascular Medicine Pulmonary and Respiratory Medicine
Journal Impact Factor	1.5/2023
5-Year Journal Impact Factor	1.6/2023

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