Ann Surg Treat Res.  2019 Mar;96(3):146-151. 10.4174/astr.2019.96.3.146.

Treatment options for isolated iliac artery aneurysms and their impact on aortic diameter after treatment

• Kim JY
• Kim DH
• Quan C
• Suh YJ
• Ann HY
• Kim JI
• Moon IS
• Lee T

• KMID: 2438691
• DOI: http://doi.org/10.4174/astr.2019.96.3.146

Abstract

PURPOSE
Isolated iliac artery aneurysm (IIAA) is uncommon. It is frequently treated by endovascular aneurysm repair (EVAR). This study was to evaluate treatment results of IIAA and survey aortic diameter after EVAR.
METHODS
Patients treated for IIAA in Seoul St. Mary's Hospital and Bundang Seoul National University from 2005 to April 2016 were retrospectively enrolled. The inclusion criteria of IIAA was >30 mm of iliac artery aneurysm without abdominal aortic aneurysm, which was treated by open surgical repair (OSR) or EVAR. Patients' clinical characteristics, treatment results, and mortality were obtained from electronic medical records. Diameters of aorta and iliac arteries were measured periodically with scheduled interval based on CT scans.
RESULTS
Forty-nine patients (40 males; mean age, 71.9 ± 11.1 years) were enrolled. Five ruptured IIAAs were treated with EVAR (n = 1) or hybrid methods (n = 4). The diameter of ruptured IIAAs was 65 ± 31.4 mm, which was not significantly different from that of elective (44.3 ± 17.0 mm). Forty-four elective IIAA underwent 9 OSR, 31 EVARs, and 3 hybrid treatments (15 bifurcated and 12 straight stent-grafts). Treatment success rate was 93.8% without hospital mortality. There were 4 type I endoleak, 1 type II endoleak, and 1 type III endoleak without aneurysm-related mortality during follow-up. However, the aortic diameter was increased over time though there was no change or decrease in common iliac artery's diameter.
CONCLUSION
Treatment of IIAA included various endovascular modalities as well as open surgery. Regular surveillance is still needed due to aortic dilatation after its treatment.

Keyword

Aneurysm; Iliac artery; Iliac aneurysm; Endovascular procedure

MeSH Terms

Aneurysm*
Aorta
Aortic Aneurysm, Abdominal
Dilatation
Electronic Health Records
Endoleak
Endovascular Procedures
Follow-Up Studies
Hospital Mortality
Humans
Iliac Aneurysm
Iliac Artery*
Male
Mortality
Retrospective Studies
Seoul
Tomography, X-Ray Computed

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