Endovascular Tubular Stent-Graft Placement for Isolated Iliac Artery Aneurysms

Journal Article · Wed Feb 15 04:00:00 EST 2012 · Cardiovascular and Interventional Radiology

DOI:https://doi.org/10.1007/S00270-010-0084-8· OSTI ID:21608607

Okada, Takuya; Yamaguchi, Masato ^[1]; Kitagawa, Atsushi ^[2]; Kawasaki, Ryota ^[3]; Nomura, Yoshikatsu ^[2]; Okita, Yutaka ^[4]; Sugimura, Kazuro; Sugimoto, Koji ^[1]

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1. Kobe University Graduate School of Medicine, Department of Radiology (Japan)
2. Kobe University Graduate School of Medicine, Center for Endovascular Therapy (Japan)
3. Hyogo Brain and Heart Center, Department of Radiology (Japan)
4. Kobe University Graduate School of Medicine, Department of Cardiovascular Surgery (Japan)

Purpose: To evaluate the safety, efficacy, and mid-term outcomes of endovascular tubular stent-graft placement for repair of isolated iliac artery aneurysms (IAAs). Materials and Methods: Between January 2002 and March 2010, 20 patients (7 women and 13 men; mean age 74 years) underwent endovascular repair of 22 isolated IAAs. Two patients underwent endovascular repair for bilateral aneurysms. Ten para-anastomotic aneurysms (45%) developed after open abdominal aortic aneurysm (AAA) repair with an aorto-iliac graft, and 12 were true aneurysms (55%). Eleven straight and 11 tapered stent-grafts were placed. Contrast-enhanced computed tomography (CT) was performed to detect complications and evaluate aneurysmal shrinkage at week 1, 3, 6, and 12 months and once every year thereafter. Non-contrast-enhanced CT was performed in seven patients with chronic kidney disease. Results: All procedures were successful, without serious complications, during the mean (range) follow-up period of 746 days (47-2651). Type II endoleak not requiring treatment was noted in one patient. The mean (SD) diameters of the true and para-anastomotic aneurysms significantly (p < 0.05) decreased from 42.0 (9.3) to 36.9 (13.6) mm and from 40.1 (13.0) to 33.6 (15.8) mm, respectively; the mean (SD) shrinkage rates were 15.1% (20.2%) and 18.9% (22.4%), respectively. The primary patency rate was 100%, and no secondary interventions were required. Four patients (21%) developed transient buttock claudication, and one patient (5%) developed colorectal ischaemia, which was treated conservatively. Conclusion: Endovascular tubular stent-graft placement for the repair of isolated IAAs is safe and efficacious. Tapered stent-grafts of various sizes are required for accurate placement.

• OSTI ID: 21608607
• Journal Information: Cardiovascular and Interventional Radiology, Journal Name: Cardiovascular and Interventional Radiology Journal Issue: 1 Vol. 35; ISSN 0174-1551; ISSN CAIRDG
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
ANIMALS
ARTERIES
BLOOD VESSELS
BODY
CARDIOVASCULAR SYSTEM
COMPUTERIZED TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
DISEASES
FEMALES
GRAFTS
KIDNEYS
MALES
MAMMALS
MAN
MATERIALS
MEN
ORGANS
PATIENTS
PRIMATES
SAFETY
TOMOGRAPHY
TRANSPLANTS
VERTEBRATES
WOMEN