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随着经皮介入治疗技术的进展和直径小、压力高、顺应性低的长球囊的应用,膝下动脉经皮腔内介入血运重建成为具有广泛前景的介入新领域。经皮球囊血管成形术近期疗效和技术成功率高,目前被认为是处理膝下动脉狭窄最有效的方法,金属裸支架置入仅用于球囊扩张术后效果欠佳或者失败的补救手段。小规模临床研究提示Cypher雷帕霉素涂层支架置入膝下动脉在中、远期通畅率高,再狭窄率低,但仍需多中心临床研究的进一步证实。
With the progress of percutaneous interventional therapy and the application of long balloon with small diameter, high pressure and low compliance, percutaneous transluminal interventional revascularization of the inferior arteries becomes a new interventional field with broad prospects. Percutaneous balloon angioplasty has the short-term efficacy and high technical success rate and is currently considered as the most effective method of treating stenosis of the knee. Bare-metal stents are used only as a remedy for poor or failed outcomes after balloon dilation. Small-scale clinical studies suggest that Cypher rapamycin-coated stents have good mid-and long-term patency and low restenosis in the inferior arteries, but further confirmation by multicenter clinical studies is warranted.