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症状性和无症状性颈内动脉狭窄患者支架置入术前后rPSV、rRI变化及其意义 被引量:2

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摘要 目的观察症状性和无症状性颈内动脉狭窄患者支架置入术(CAS)前后颈内动脉狭窄侧与健侧收缩期峰值流速比值(rPSV)、阻力指数比值(rRI)变化,并探讨其临床意义。方法选择行CAS治疗的颈内动脉狭窄患者43例,有明显缺血性卒中、短暂性脑缺血发作等症状者26例(有症状组),无明显症状者17例(无症状组)。所有患者CAS治疗前后分别测量患侧与健侧收缩期峰值流速(PSV)、阻力指数(RI),计算rPSV、rRI。结果有症状组CAS治疗前rPSV高于CAS治疗后,rRI低于CAS治疗后(P均<0.05)。无症状组CAS治疗前rPSV高于CAS治疗后(P<0.05),但CAS治疗前后rRI比较P>0.05。结论症状性颈内动脉狭窄患者接受CAS治疗后rPSV明显降低、rRI明显升高,无症状性颈内动脉狭窄患者接受CAS治疗后rPSV明显降低,而rRI变化不明显。因此,CAS更适合治疗症状性颈内动脉狭窄。
出处 《山东医药》 CAS 2020年第13期68-70,共3页 Shandong Medical Journal
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