Abdominal aortic aneurysms often occur concomitantly with aneurysmal iliac arteries requiring treatment by flared endograft limb, branch device, or hypogastric embolization with external iliac extension during endovascular repair. The long-term natural history of a flared limb in an aneurysmal iliac artery remains unclear. The purpose of this study was to determine the adequacy of flared limb use in aneurysmal iliac arteries. A retrospective review of a prospectively collected database for one large vascular group was queried for large iliac limb use. A large limb was defined as a limb larger than 18 mm in diameter. Demographics, operative details, and ancillary procedures were tabulated and compared using standard statistics.
There were 346 limbs with an iliac device limb >18 mm in diameter (LRG) and 1646 limbs with devices <18 mm (REG) implanted between January 1, 2013 and January 1, 2018 and observed for a median of 5.9 months (range, 1-52 months). Demographics were similar between LRG and REG, respectively: age, 72.0 years (range, 48-94 years) vs 72.7 years (range, 33-100 years); male sex, 89.8% vs 71.2%; coronary disease, 19% vs 20%; hypertension, 46% vs 46%; cholesterol, 41% vs 37%; chronic obstructive pulmonary disease.
Reference link- https://www.jvascsurg.org/article/S0741-5214(20)31437-3/fulltext
