Chinese General Practice ›› 2019, Vol. 22 ›› Issue (6): 668-672.DOI: 10.12114/j.issn.1007-9572.2018.00.020

• Monographic Research • Previous Articles     Next Articles

Relationship between Cognitive Function and Cerebrovascular Reactivity in Asymptomatic Carotid Stenosis Patients

  

  1. 1.Department of Neurology,Weifang People's Hospital,Weifang 261000,China
    2.Emergency Department,Weifang People's Hospital,Weifang 261000,China
    *Corresponding author:ZHANG Shuyun,Associate chief physician;E-mail:john-lw@sohu.com
  • Published:2019-02-20 Online:2019-02-20

无症状颈动脉狭窄患者的认知功能及其与脑血管反应性的关系研究

  

  1. 1.261000山东省潍坊市人民医院神经内科 2.261000山东省潍坊市人民医院急诊部
    *通信作者:张淑云,副主任医师;E-mail:john-lw@sohu.com
  • 基金资助:
    基金项目:潍坊市科学技术发展计划项目(201302023)

Abstract: Backgropund The cognitive status of patients with asymptomatic carotid stenosis (ACS) is still unclear,and its relationship with cerebrovascular reactivity (CVR) is still unclear.Objective To assess the relationship between cognitive function and CVR in ACS patients.Methods The participants were enrolled from Weifang People's Hospital from October 2014 to September 2017,including 102 outpatients and inpatients with ACS(ACS group),and 26 healthy cases  undergoing physical examination(control group).We collected the general data in both groups.Transcranial Doppler ultrasound was used for breath-holding test (BHI)to assess CVR in patients with ACS.Based on the assessment results of CVR,ACS patients were divided into normal left CVR(LCVR)group(n=30),impaired LCVR group(n=23),normal right CVR(RCVR)group(n=28),impaired RCVR group(n=21).Color Doppler ultrasound was used to assess carotid stenosis in ACS patients.The fourth edition of Wechsler Adult Intelligence Scale(WAIS-Ⅳ) was used to assess cognitive function in all participants.Results There was significant difference in BHI among the 5 groups(P<0.05 ).The degree of internal carotid artery stenosis did not differ significantly between the normal LCVR group,impaired LCVR group,normal RCVR group and impaired RCVR group(P>0.05).The vocabulary score of the impaired LCVR group was lower than that of the other four groups(P<0.05).The impaired RCVR group achieved lower scores of picture completion and visual puzzles compared with other four groups(P<0.05).There was a positive correlation between the vocabulary score and BHI in the impaired LCVR group(r=0.713,P<0.05).BHI was positively correlated with the picture completion score as well as the visual puzzles score in the impaired RCVR group(r=0.622,P<0.05;r=0.647,P<0.05).Conclusion In patients with ACS,there is a decrease in cognitive function among some patients with reduced CVR. The relevant cognitive domain is associated with the function of the ipsilateral hemisphere of the narrow carotid artery,and the degree of cognitive decline is related to the degree of CVR reduction.

Key words:
Carotid stenosis,
Asymptomatic diseases, Cognition

摘要:

背景 无症状颈动脉狭窄(ACS)患者认知情况目前仍不清楚,且其与脑血管反应性(CVR)关系尚不明确。目的 评估ACS患者的认知功能及其与CVR的关系。方法 选取2014年10月—2017年9月于潍坊市人民医院就诊或住院的ACS患者102例,并同期选取本院健康体检者26例作为对照组。根据CVR受损侧别
及受损情况将ACS患者分为左侧CVR(LCVR)正常组30例,LCVR受损组23例,右侧CVR(RCVR)正常组28例,RCVR受损组21例。收集患者一般资料,采用经颅多普勒超声进行屏气指数(BHI)检测以评估ACS患者的CVR,彩色多普勒超声评估颈内动脉狭窄度,韦氏智力量表评估受试者认知功能。结果 5组BHI
比较,差异有统计学意义(P<0.05);LCVR正常组、LCVR受损组、RCVR正常组、RCVR受损组颈内动脉狭窄度比较,差异均无统计学意义(P>0.05)。LCVR受损组词汇得分低于其余4组,RCVR受损组填图、图形拼凑得分低于其余4组(P<0.05)。LCVR受损组词汇得分与BHI呈正相关(r=0.713,P<0.05);
RCVR受损组填图、图形拼凑得分与BHI呈正相关(r=0.622,P<0.05;r=0.647,P<0.05)。结论 ACS患者中CVR降低者存在部分认知功能下降,相关认知领域与狭窄颈动脉同侧半球的功能相关,且认知功能下降程度与CVR降低程度相关。

关键词: 颈动脉狭窄, 无症状疾病, 认知