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目的:分析西宁地区锁骨下动脉盗血综合征(Subclavian Steal Syndrome,SSS)患者锁骨下动脉(SubA)及桡动脉(RadioA)血流情况,并探讨其与临床关系。方法:应用经颅多普勒(transcranialDoppler,TCD)检测SSS患者29例,证实盗血存在并观察RadioA血流情况。结果:SSS的TCD表现为:①SubA轻-中度狭窄,椎动脉(VA)盗血Ⅰ期,患侧RadioA血流速度、搏动指数与健侧及健康组无显著差别;②SubA重度狭窄或闭塞,同侧VA盗血Ⅱ期或Ⅲ期,患侧RadioA血流速度、搏动指数与健侧和健康组比较均有显著差别。结论:RadioA是SubA远端血管,RadioA频谱改变能够提示或证实是否存在SubA狭窄或闭塞。
Objective: To analyze the blood flow of subclavian artery (SubA) and radial artery (RadioA) in patients with Subclavian Steal Syndrome (SSS) in Xining area and to explore its clinical significance. Methods: Twenty-nine patients with SSS were examined by transcranial doppler (TCD), which confirmed the existence of stolen blood and observed the RadioA blood flow. Results: The TCD of SSS was as follows: ①SubA mild-moderate stenosis, VA steal stage Ⅰ, ipsilateral RadioA blood flow velocity, pulsatility index had no significant difference with contralateral and healthy group; ②SubA severe stenosis or occlusion, Ipsilateral VA steal Ⅱ or Ⅲ steal, ipsilateral RadioA blood flow velocity, pulsatility index and contralateral and healthy groups were significantly different. CONCLUSIONS: RadioA is a SubA distal vessel and changes in RadioA spectrum can prompt or confirm the presence or absence of SubA stenosis or occlusion.