Objective To evaluate the medium-to-long-term efficacy of parallel stenting technology in treating aortoiliac occlusive disease(AIOD).Methods The clinical data of 18 patients with symptomatic AIOD,who received parallel stenting(using metal bare stent or covered stent)to reconstruct the aortoiliac artery at the Affiliated Hospital of Southwest Medical University of China from March 2017 to May 2019,were retrospectively analyzed.The patients included 14 males and 4 females with a mean age of(64.78±9.04)years.The surgical details,clinical success,complications,and stent patency rate were recorded.Results Both technical success and clinical success were achieved in all patients.A total of 62 stents were implanted,including 52 bare metal stents,9 covered stents and one renal artery balloon dilatation stent.After stent implantation,one patient each developed lacunar cerebral infarction,brachial artery pseudoaneurysm,decreased hemoglobin level,and thrombus migration into the renal artery,and after active management the patients were well discharged.The incidence of complications was 22％(4/18).During the follow-up period,3 patients developed in-stent restenosis,and the vascular lumen returned to patency after a second time of endovascular intervention.The postoperative 12-,18-,24-,30-,and 36-month main patency rates were 100％,95％,90％,85％,and 85％,respectively.Conclusion For the treatment of AIOD,parallel stenting technology has obtained satisfactory 3-year results.For the patients with complicated AIOD,this technique also carries a high technical success rate and an acceptable medium-to-long-term patency rate.
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