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. 2015 Sep;31(3):87-94.
doi: 10.5758/vsi.2015.31.3.87. Epub 2015 Sep 30.

Anatomical Features and Early Outcomes of Endovascular Repair of Abdominal Aortic Aneurysm From a Korean Multicenter Registry

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Free PMC article

Anatomical Features and Early Outcomes of Endovascular Repair of Abdominal Aortic Aneurysm From a Korean Multicenter Registry

Hyunwook Kwon et al. Vasc Specialist Int. .
Free PMC article

Abstract

Purpose: To introduce a nation-based endovascular aneurysm repair (EVAR) registry in South Korea and to analyze the anatomical features and early clinical outcomes of abdominal aortic aneurysms (AAA) in patients who underwent EVAR.

Materials and methods: The Korean EVAR registry (KER) was a template-based online registry developed and established in 2009. The KER recruited 389 patients who underwent EVAR from 13 medical centers in South Korea from January 2010 to June 2010. We retrospectively reviewed the anatomic features and 30-day clinical outcomes.

Results: Initial deployment without open conversion was achieved in all cases and procedure-related 30-day mortality rate was 1.9%. Anatomic features showed the following variables: proximal aortic neck angle 48.8±25.7° (mean±standard deviation), vertical neck length 35.0±17.2 mm, aneurysmal sac diameter 57.2±14.2 mm, common iliac artery (CIA) involvement in 218 (56.3%) patients, and median right CIA length 34.9 mm. Two hundred and nineteen (56.3%) patients showed neck calcification, 98 patients (25.2%) had neck thrombus, and the inferior mesenteric arteries of 91 patients (23.4%) were occluded.

Conclusion: Anatomical features of AAA in patients from the KER were characterized as having angulated proximal neck, tortuous iliac artery, and a higher rate of CIA involvement. Long-term follow-up and ongoing studies are required.

Keywords: Abdominal aortic aneurysm; Anatomy; Endovascular aneurysm repair; Korean endovascular aneurysm repair registry.

Figures

Fig. 1.
Fig. 1.
Morphological variables of abdominal aortic aneurysms. A1, the most acute angle in the centerline between the suprarenal and infrarenal aorta; A2, the most acute angle in the centerline between the lowest renal artery and the aortic bifurcation; D1, diameter at just below the lowest renal artery; D2, distal neck diameter; D3, maximal diameter of the aneurysm; D4, diameter at the iliac bifurcation; H1, vertical length from the lowest renal artery to the aortic neck; H2, vertical sac length; H3, vertical length from the aneurysm distal end to the iliac bifurcation; H4a, right common iliac artery height; H4b, left common iliac artery height.

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