Early and long-term results of the endovascular treatment of patients with isolated infrarenal aortic stenosis.

OBJECTIVE

The purpose of this study was to report our results of patients' characteristics, procedural complications, and long-term patency in treatment of isolated infrarenal aortic stenosis (IIAS).

METHODS

Forty symptomatic patients (28 female, 12 male; median age, 60 years [54.8-68 years]) with IIAS who underwent endovascular intervention between 2001 and 2017 were retrospectively analyzed. Patient, lesion, procedure, and balloon/stent characteristics were assessed. Follow-up included clinical status evaluation and color Doppler ultrasound examination.

RESULTS

The cause of IIAS was atherosclerosis in all patients. Twenty percent of the patients were younger than 50 years; 85% had hypertension, 80% were smokers, 38% had hyperlipidemia, 23% had diabetes mellitus, 15% were obese (body mass index ≥30 kg/m2), and 8% had chronic kidney disease. The median stenosis grade was 80% (70%-80%), and the median lesion length was 19.9 mm (13-29.4 mm). Severe calcification was present in 8% of the patients. Percutaneous transluminal angioplasty was performed in four cases (10%), whereas stenting was performed in 36 (90%). One complication, an aortic rupture requiring surgical repair, occurred. The median follow-up was 61 months (17-101 months). The primary patency rate was 100% at 6 months, 97% at 12 and 24 months, and 88% at 60 and 96 months. Restenosis developed in three patients (8%); reintervention was carried out in two cases (5%).

CONCLUSIONS

Endovascular therapy for IIAS provides a safe and effective long-term treatment strategy.