LAUSR

BACKGROUND Common iliac artery aneurysms (CIAAs) are seen in 20-40% of patients with abdominal aortic aneurysms. Historically treated with sacrifice of the hypogastric artery, which can result in significant morbidity related to pelvic ischemia, new devices have made hypogastric artery preservation more feasible, but are only applicable to a small subset of aneurysm anatomy. We sought to assess the safety and efficacy or a novel technique for hypogastric artery preservation applicable to a wider variety of CIAA patients. METHODS We conducted a retrospective review of a prospectively maintained database of all patients with CIAA treated with a novel endovascular technique at the UC San Diego Sulpizio Cardiovascular Center or the San Diego Veterans Affairs Hospital between March 2016 and December 2017. The endovascular technique involved stent placement in both the internal and external iliac arteries, with balloon expansion to minimize gutters between the endografts. Primary endpoints included technical success, limb patency, and presence of ELs. RESULTS A total of 14 limbs (12 patients) were treated for CIAAs with 100% technical success and limb patency at an average of 6.8 months of follow-up. No patients experienced type I or type III EL or evidence of pelvic ischemia. Two patients required reintervention and one patient died of causes unrelated to the procedure. CONCLUSIONS This technique was performed with excellent short- and mid-term safety in patients with varying aneurysm anatomy. The high rates of technical success and low rates pelvic ischemia represent improvement over conventional techniques that sacrifice the hypogastric artery, and warrant further testing in a larger patient series with longer-term follow-up.