^CLINICAL INVESTIGATION ————————————————————————— — ^ Endovascular Treatment of External Iliac Artery Occlusive Disease: Midterm Results

Purpose: To report midterm outcomes for endovascular treatment of external iliac artery (EIA) occlusive disease and assess possible factors affecting patency. Methods: A retrospective analysis was conducted of 99 consecutive patients (91 men; mean age 67.3 years) with claudication (n70) or critical limb ischemia (n29) owing to occlusive EIA disease treated at our center from January 2005 to June 2012. The majority of lesions (79/108) were TASC A/B. Lesions were a mean 42.2 mm long (range 10–125); 43/108 affected the distal third of the EIA. Balloon angioplasty alone was performed in 7 limbs, while the remaining 101 lesions were stented (65 self-expanding, 24 balloon-expandable, and 12 covered). Clinical and hemodynamic follow-up was performed at 1, 3, 6, and 12 months after therapy and yearly thereafter. The factors examined were procedure characteristics and patency rates. Results: Over a median follow-up of 27.5 months (range 1–89), there were 2 (1.9%) early occlusions followed by a successful reintervention, 4 late occlusions, and 5 hemodynamic failures followed by 7 reinterventions. These events led to primary and secondary patency rates at 30 months of 89.7 % and 94.1%, respectively. No differences in patency rates were detected according to age, clinical state, or comorbidity. Use of covered stents (p0.006) was the only variable associated with lower primary patency rates. Conclusion: Endovascular therapy to treat TASC A/B lesions of the EIA yielded good short and midterm patency and low early morbidity and mortality. Lesions involving the distal third of the EIA treated by simple angioplasty 6 stenting fared worse. No clinical factors could be correlated with patency. J Endovasc Ther. 2014;21:223–229 Key words: endovascular repair, external iliac artery, claudication, critical limb ischemia