The use of covered stent for the treatment of spontaneous peripheral artery dissection: preliminary results in 9 cases / 介入放射学杂志

ABSTRACT

Objective To investigate the safety and effectiveness of using covered stent in endovascular isolation treatment of spontaneous peripheral artery dissection.Methods A total of 9 patients with peripheral artery dissection were collected.The dissectionwas located at iliac artery in 6 patients and at subclavian artery in 3 patients.Preoperative CT angiography was performed in all patients to determine the site and degree of the dissection,based on which the corresponding covered stents were prepared.After puncturing the femoral artery with Seldinger technique,angiography was performed to confirm the lesions in all patients,then,according to the angiographic findings the implantation of covered stent was carried out.Results Among the 9 patients,the dissections were located at the right common iliac artery in 3,at the right external iliac artery in one,at the left common iliac artery in 2 and at the left subclavian artery in 3.The length of the dissection was 0.9-3.3 cm with a mean of 1.7 cm.The distance between the initial part of arterial dissection and the target vessel opening was 0.5-5.6 cm with an average of 2.3 cm.The covered stent was successfully implanted in all patients.In one patient,the implanted stent covered the non-dominant left vertebral artery.During the procedure no obvious complications occurred.The patients were followed up for 3-32 months (mean of 18 months).No procedure-related complications were observed in all patients.Color Doppler ultrasound examination showed that all the implanted stents were unobstructed.Conclusion For peripheral artery dissection,endovascular isolation therapy by using covered stent is safe and effective.