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中华医学超声杂志(电子版) ›› 2017, Vol. 14 ›› Issue (07) : 500 -505. doi: 10.3877/cma.j.issn.1672-6448.2017.07.005

所属专题: 文献

头颈部超声影像学

颈动脉粥样斑块易损性与缺血性卒中的相关性
郭周颖1, 惠品晶1,(), 颜燕红1, 张白1, 徐岚2, 顾信平2, 石伟强3   
  1. 1. 215006 苏州大学附属第一医院颈脑血管超声科
    2. 215006 苏州大学基础医学与生物科学学院
    3. 215006 苏州大学附属第一医院病理科
  • 收稿日期:2017-04-17 出版日期:2017-07-01
  • 通信作者: 惠品晶
  • 基金资助:
    苏州市临床重点病种诊疗技术专项项目(LCZX201403); 江苏省第十批"六大人才高峰"高层次人才选拔培养项目(2013-WSW-045); 苏州市科技发展计划资助项目(SYS201326); 苏州市民生科技示范工程项目(SS201714)

Correlation between the vulnerability of carotid plaque and ischemic stroke

Zhouying Guo1, Pinjing Hui1,(), Yanhong Yan1, Bai Zhang1, Lan Xu2, Xinping Gu2, Weiqiang Shi3   

  1. 1. Department of Carotid and Cerebralvascular Ultrasonography, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
    2. School of basic medicine and Biological Sciences, Soochow University, Suzhou 215006, China
    3. Department of Pathology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
  • Received:2017-04-17 Published:2017-07-01
  • Corresponding author: Pinjing Hui
  • About author:
    Corresponding author: Hui Pinjing, Email:
引用本文:

郭周颖, 惠品晶, 颜燕红, 张白, 徐岚, 顾信平, 石伟强. 颈动脉粥样斑块易损性与缺血性卒中的相关性[J/OL]. 中华医学超声杂志(电子版), 2017, 14(07): 500-505.

Zhouying Guo, Pinjing Hui, Yanhong Yan, Bai Zhang, Lan Xu, Xinping Gu, Weiqiang Shi. Correlation between the vulnerability of carotid plaque and ischemic stroke[J/OL]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2017, 14(07): 500-505.

目的

分析颈动脉粥样斑块易损性与缺血性卒中的相关性,探讨准确评估易损斑块的临床意义。

方法

选取2014年10月至2016年2月在苏州大学附属第一医院行颈动脉内膜剥脱术(CEA)患者64例,术前、术后均行基于颈部血管超声(CDU)的多模式影像学检查,根据术前6个月内是否首发缺血性卒中,分为缺血组(44例)与非缺血组(20例);根据术前CDU检查、术后斑块大体形态及HE染色特征评估斑块的性质,采用χ2检验对患者进行卒中高危因素分析及斑块性质与缺血性卒中的统计学分析,采用Kappa检验对术前CDU结果与术后相应层面病理学结果行一致性分析。

结果

缺血组与非缺血组的斑块性质:缺血组44例,其中,CDU评估易损斑块81.8%(36/44),稳定斑块18.2%(8/44);病理学评估易损斑块86.4%(38/44),稳定斑块13.6%(6/44);非缺血组20例,其中CDU评估易损斑块35%(7/20),稳定斑块65%(13/20);病理学评估易损斑块40%(8/20),稳定斑块60%(12/20)。斑块易损性与缺血性卒中比较:CDU与病理学评估缺血组易损斑块均明显高于非缺血组,差异均有统计学意义(χ2=13.67、14.62,P均<0.001)。CDU与病理学评估斑块易损性的一致性:两者有较好的一致性(Kappa=0.669,P<0.01)。

结论

颈动脉易损斑块与缺血性卒中密切相关,CDU能准确评估斑块易损性,对于及早发现并精准治疗易损斑块、防止缺血性脑卒中有重要的临床意义。

Objective

To analysis the correlation between the vulnerability of carotid plaque and ischemic stroke and to explore the clinical significance of assessing vulnerable plaques accurately.

Methods

A total of 64 patients, who underwent carotid endarterectomy (CEA) in First Affiliated Hospital of Soochow University from October 2014 to February 2016, were classified into ischemic and non-ischemic stroke group according to whether ischemic stroke symptoms occurred during the last 6 months before surgery. To judge the stable and vulnerable plaques, the patients underwent carotid doppler ultrasonography (CDU) before surgery, and the carotid plaques were evaluated with HE staining after CEA. We also analyzed the risk factors of plaque formation and the relevance between the plaque characteristic and ischemic stroke with chi-square test. Kappa test were used to analyze the consistency of CDU and pathology.

Results

Of the 44 cases in ischemic stroke group, CDU identified 81.8% (36/44) vulnerable plaques and 18.2% (8/44) stable plaques, while pathology confirmed 86.4% (38/44) vulnerable plaques and 13.6% (6/44) stable plaques. Of the 20 cases in non-ischemic stroke group, CDU identified 35% (7/20) vulnerable plaques and 65% (13/20) stable plaques, while pathology confirmed 40% (8/20) vulnerable plaques and 60% (12/20) stable plaques. In both CDU and pathology, vulnerable plaques in ischemic stroke group were obviously higher than that in non-ischemia group (χ2=13.67, P<0.001; χ2=14.62, P<0.001). The results of CDU agreed well to that of pathology results (Kappa=0.669, P<0.01).

Conclusions

The vulnerability of plaques were closely related to the ischemic stroke. CDU is a reliable examination method to identify vulnerable plaques. The accurate assessment of vulnerability of plaques has a great significance in preventing ischemic stroke.

图3~4 颈动脉稳定斑块及易损斑块的HE染色表现。图3示稳定斑块病理(HE ×10):斑块纤维帽完整连续(箭头所示)、表面光滑,其内纤维成分居多;图4示易损斑块病理(HE ×10),斑块纤维帽破裂不连续(红色箭头所示),其内可见血栓(蓝色箭头所示)、新生血管(黄色箭头所示)、脂质核心(绿色箭头所示)及较多炎性细胞
表1 缺血组与非缺血组患者一般情况与相关危险因素分析
表2 颈部血管超声评估斑块易损性与缺血性卒中的比较(例)
表3 病理学评估斑块易损性与缺血性卒中的比较(例)
表4 颈部血管超声与病理学评估斑块易损性的一致性分析(例)
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