Study on the causes of restenosis after endovascular treatment of long segment superficial femoral artery occlusion / 中国医师进修杂志

ABSTRACT

Objective To study the causes of restenosis after endovascular treatment of long segment superficial femoral artery occlusion.Methods The clinical data of 38 patients with long segment superficial femoral artery occlusion were retrospectively analyzed,and the patients were treated with balloon dilatation and stent implantation.The patients were followed up 6 and 12 months after operation.The changes of claudication distance were observed,and the patients underwent color Doppler vascular ultrasound examination.The patients were divided into patency group and restenosis group according to the results of follow up, and the clinical data were compared between 2 groups.Results The follow-up result showed that patency was in 24 cases(patency group),and restenosis or occlusion was in 14 cases(restenosis group).The ankle brachial index(ABI)in restenosis group was significantly lower than that in patency group: 0.47 ± 0.41 vs.0.50 ± 0.48, and there was statistical difference (P<0.05).The data were classified according to the actual situation.Results showed that the lengths of occlusion segment >30cm, lengths of stent >30cm and age>70 years were the risk factors of restenosis after endovascular treatment in patients with long segment superficial femoral artery occlusion (P<0.05).Conclusions The endovascular treatment of long segment superficial femoral artery occlusion is safe and effective.The lower ABI,lengths of occlusion segment>30cm,lengths of stent>30cm and age>70 years are the risk factors of restenosis after endovascular treatment in patients with long segment superficial femoral artery occlusion.