Barbati Mohammad E, Gombert Alexander, Toonder Irwin, van Vuuren Timme Maj, Schleimer Karina, Grommes Jochen, Wittens Cees Ha, Jalaie Houman
1 Department of Vascular Surgery, University Hospital Aachen, Aachen, Germany.
2 Department of Vascular Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands.
Phlebology. 2019 Feb;34(1):8-16. doi: 10.1177/0268355518757240. Epub 2018 Feb 6.
Patients with post-thrombotic syndrome due to chronic venous obstruction and resistant to conservative management can benefit from endovenous revascularization. The current study investigated the usefulness of duplex ultrasound in monitoring the stent changes over the time.
All duplex ultrasound images of treated patients were reviewed retrospectively. The stent diameter and area during the follow-up visits have been analyzed.
A total of 210 stents were placed in 137 limbs. Duplex ultrasound findings showed a decrease in area of stent in all patients (mean: 0.69 cm). Reduction of stent area over the time was a predictor of stent patency (odds ratio: 0.910; confidence interval: 0.832-0.997).
Duplex ultrasound has sufficient accuracy in detection of stent changes and its patency. There is a discrepancy between diameter of the stent lumen in vitro and after deployment in all patients. Stent occlusion is related to reduction of stent lumen over the time rather than the percent of the stenosis.
因慢性静脉阻塞导致血栓形成后综合征且对保守治疗无效的患者可从静脉内血管重建术中获益。本研究调查了双功超声在监测支架随时间变化方面的实用性。
对接受治疗患者的所有双功超声图像进行回顾性分析。分析随访期间支架的直径和面积。
共对137条肢体植入了210个支架。双功超声检查结果显示所有患者的支架面积均减小（平均：0.69平方厘米）。支架面积随时间的减小是支架通畅的一个预测指标（比值比：0.910；置信区间：0.832 - 0.997）。
双功超声在检测支架变化及其通畅性方面具有足够的准确性。所有患者体外支架管腔直径与植入后存在差异。支架闭塞与支架管腔随时间的减小有关，而非狭窄百分比。
