Baril Donald T, Marone Luke K
Division of Vascular and Endovascular Surgery, University of Massachusetts Medical School, Worcester, MA, USA.
Vasc Endovascular Surg. 2012 Jul;46(5):353-7. doi: 10.1177/1538574412448684. Epub 2012 May 19.
Surveillance following lower extremity bypass, carotid endarterectomy, and endovascular aortic aneurysm repair has become the standard of care at most institutions. Conversely, surveillance following lower extremity endovascular interventions is performed somewhat sporadically in part because the duplex criteria for recurrent stenoses have been ill defined. It appears that duplex surveillance after peripheral endovascular interventions, as with conventional bypass, is beneficial in identifying recurrent lesions which may preclude failure and occlusion. In-stent stenosis following superficial femoral artery angioplasty and stenting can be predicted by both peak systolic velocity and velocity ratio data as measured by duplex ultrasound. Duplex criteria have been defined to determine both ≥50% in-stent stenosis and ≥80% in-stent stenosis. Although not yet well studied, it appears that applying these criteria during routine surveillance may assist in preventing failure of endovascular interventions.
下肢搭桥术、颈动脉内膜切除术和血管内主动脉瘤修复术后的监测已成为大多数机构的标准治疗方案。相反，下肢血管内介入治疗后的监测开展得较为零散，部分原因是复发性狭窄的双功超声标准尚未明确界定。与传统搭桥术一样，外周血管内介入治疗后的双功超声监测似乎有助于识别可能导致失败和闭塞的复发性病变。股浅动脉血管成形术和支架置入术后的支架内狭窄可通过双功超声测量的收缩期峰值流速和流速比数据进行预测。已定义双功超声标准以确定支架内狭窄≥50%和≥80%的情况。尽管尚未得到充分研究，但在常规监测中应用这些标准似乎有助于预防血管内介入治疗的失败。
