Background: Endovascular aneurysm repair is superior to open surgical repair (OSR) in multiple aspects and is the mainstay for noninflammatory iliac artery aneurysm (IAA) treatment. However, for noninflammatory IAAs with neighboring structures compressed, the experience of endovascular treatment is limited. This case series study aimed to describe the experience of endovascular aneurysm repair of noninflammatory IAAs with urinary obstruction and to review the limited reports in the literature.
Methods: From December 2012 to July 2020, we reported 7 cases of noninflammatory IAAs combined with urinary obstruction that was treated successfully with endovascular treatment. The literature on noninflammatory IAAs combined with urinary obstruction was reviewed using the online databases PubMed, Embase, and the Cochrane Library.
Results: Thirty nine articles were found in the literature. OSR accounted for 80% of the treatment options in previous publications, while only 20% of patients accepted endovascular treatment. Hydronephrosis remission was observed in all patients treated by OSR, while the endovascular treatment group lacked long-term follow-up. In our retrospective study containing 7 cases, no complications, reintervention, or mortality was observed, all stents were patent, and all symptoms were relieved after the operation. Diameter reduction of the aneurysms was observed in 6/7 cases and the average aneurysm reduction was -24.1 ± 15.8 mm (P = 0.0097). Urinary obstruction faded in 5/7 cases where aneurysm shrinking was found simultaneously.
Conclusions: This case series and literature review on noninflammatory IAAs combined with urinary obstruction suggests that the diameter of the responsible aneurysm may be reduced after endovascular treatment, which may also alleviate symptoms of urinary obstruction caused by noninflammatory IAAs.
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