Spijkerboer A M, Nass P C, de Valois J C, van der Graaf Y, Eikelboom B C, Mali W P
Department of Radiology, University Hospital Utrecht, The Netherlands.
Eur J Vasc Endovasc Surg. 1996 Nov;12(4):418-23. doi: 10.1016/s1078-5884(96)80006-2.
To determine if Duplex ultrasound (DUS) 1 day after percutaneous transluminal angioplasty (PTA) is prognostic for haemodynamic and clinical results at 1 year.
Prospective study.
Thirty-four femoropopliteal artery segments were treated with PTA. The peak systolic velocity ratio (PSV ratio = PSV in stenosis: PSV in normal segment) was determined with DUS before PTA, 1 day after PTA and 1 year after PTA. Clinical results were assessed with the SVS/ISCVS (Society for Vascular Surgery/International Society for CardioVascular Surgery) results classification.
A 1 year, clinical benefit from PTA was seen in 16 of 25 patients (64%) and haemodynamic improvement in 20 of 34 treated segments (59%). With DUS three residual stenoses were found 1 day after PTA; all occluded within 1 year. Segments with good DUS results after PTA showed haemodynamic deterioration in 30%. Clinical improvement was seen in most patients with DUS improvement, whereas no change or deterioration was found in patients with both good and poor DUS results at 1 year.
Residual stenosis on DUS 1 day after PTA is prognostic for failure within 1 year. However, good DUS results after PTA cannot predict haemodynamic success. Haemodynamic success at 1 year does not imply clinical success.
确定经皮腔内血管成形术（PTA）后1天的双功超声（DUS）检查结果对1年时血流动力学和临床结果是否具有预后价值。
前瞻性研究。
对34条股腘动脉节段进行了PTA治疗。在PTA前、PTA后1天和PTA后1年，用DUS测定收缩期峰值流速比值（PSV比值=狭窄处PSV：正常节段PSV）。采用血管外科学会/国际心血管外科学会（SVS/ISCVS）结果分类评估临床结果。
25例患者中有16例（64%）在PTA后1年出现临床获益，34个治疗节段中有20个（59%）出现血流动力学改善。PTA后1天，DUS发现3处残余狭窄；所有狭窄均在1年内闭塞。PTA后DUS结果良好的节段中有30%出现血流动力学恶化。多数DUS检查结果改善的患者出现了临床改善，而1年时DUS结果良好和不佳的患者均未出现变化或恶化。
PTA后1天DUS检查发现的残余狭窄对1年内治疗失败具有预后价值。然而，PTA后良好的DUS检查结果不能预测血流动力学成功。1年时血流动力学成功并不意味着临床成功。
