功能性经颅多普勒对血管性认知障碍的临床研究
发布时间:2018-11-10 16:58
【摘要】:目的:探讨血管性认知功能障碍(VCI)患者脑血管储备和事件相关性血流改变情况,为VCI早期诊断和干预提供依据。 方法:收集2009年8月-2011年8月我院神经内科记忆障碍门诊及神经内科卒中单元收治的108例病程≥半年的缺血性脑卒中患者,其中脑梗死后无认知功能障碍(NC)组45例,血管性痴呆(VaD)组27例,血管性认知功能障碍无痴呆(VCIND)组36例;经颅多普勒仪(TCD)检测三组受检者双侧大脑中动脉(MCA)平均血流速度(MFV)、搏动指数(PI),采用屏气实验观察三组受检者MCA屏气前后MFV,计算屏气指数(BHI);功能性经颅多普勒仪(fTCD)检测三组受检者双侧MCA事件相关性血流,计算事件相关性血流变化百分率(pCBFV),上述血流参数作为血流动力学评价指标。 结果:1、VCIND和VaD组患者平均年龄大于NC组(P0.05);VCIND和VaD组患者教育年限小于NC组(P0.05);VaD组合并有高血压病、糖尿病、缺血性脑卒中次数≥2次的患者比例高于NC组(P0.05)和VCIND组(P0.05)。 2、VCIND和VaD组颅内多发及双侧缺血性病灶的患者比例高于NC组(P0.05);VaD组患者缺血性病灶分布于左侧大脑半球的比例高于VCIND(P0.05)及NC组(P0.05)。 3、三组患者MoCA分值两两比较有统计学差异(P0.05)。 4、VCIND和VaD组患者MFV低于NC组(P0.05),VaD与VCIND组两组之间MFV比较无统计学差异(P0.05);VCIND和VaD组患者BHI值低于NC组(P0.05),VaD组与VCIND组BHI值相比无统计学差异(P0.05)。三组患者PI值比较无统计学差异(P0.05)。 5、fTCD检测事件相关性血流,,三组患者在完成默读任务时大脑中动脉的血流速度较基线血流速度均有升高,其中NC和VCIND组患者默读MFV与基线MFV相比,上升有统计学意义(P0.05),VaD组默读MFV较基线MFV上升无统计学差异(P0.05);左右侧MFV比较中,NC组患者左侧默读MFV大于右侧默读MFV(P0.05),VCIND组患者左右侧默读MFV比较无统计学差异(P0.05)VaD组患者左侧默读MFV小于右侧默读MFV(P0.05)。 6、fTCD检测事件相关性血流变化百分率(pCBFV):VaD和VCIND组患者的pCBFV较NC组低,差异具有统计学意义(P0.05);VaD组患者的pCBFV亦低于VCIND组(P0.05)。左右侧pCBFV比较显示:NC组患者左侧pCBFV大于右侧(P0.05),VaD患者左侧pCBFV小于右侧(P0.05),VCIND患者左右侧pCBFV比较无统计学差异(P0.05)。 7、相关性分析结果显示:BHI、pCBFV与MoCA呈正相关(P0.05),BHI和pCBFV亦存在正相关(P0.05)。 结论:1、血管性认知功能障碍患者屏气指数受损; 2、血管性认知功能障碍患者事件相关性血流的偏侧化现象受损。
[Abstract]:Objective: to investigate the changes of cerebrovascular reserve and event-related blood flow in patients with vascular cognitive impairment (VCI) and to provide evidence for early diagnosis and intervention of VCI. Methods: from August 2009 to August 2011, one hundred and eight patients with ischemic stroke with a course of more than half a year were treated in the Department of Neurology and Stroke Unit in our hospital. There were 45 patients with no cognitive impairment in (NC) group after cerebral infarction. There were 27 cases of vascular dementia in (VaD) group and 36 cases of vascular cognitive impairment without dementia (VCIND) group. Transcranial Doppler (TCD) measurement of (MCA) mean blood flow velocity of bilateral middle cerebral artery (MFV), pulsatile index (PI), using breath-holding experiment to observe three groups of subjects before and after MCA breath-holding MFV, calculated the breath-holding index (BHI); Functional transcranial Doppler (fTCD) was used to detect the event-related blood flow of bilateral MCA in three groups. The percentage of event-related blood flow was calculated. The above parameters were used as an index to evaluate hemodynamics. Results: 1 the average age of VCIND and VaD group was longer than that of NC group (P0.05). The education years of); VCIND and VaD group were lower than that of NC group (P0.05). The proportion of VaD patients with hypertension, diabetes and ischemic stroke 鈮
本文编号:2323033
[Abstract]:Objective: to investigate the changes of cerebrovascular reserve and event-related blood flow in patients with vascular cognitive impairment (VCI) and to provide evidence for early diagnosis and intervention of VCI. Methods: from August 2009 to August 2011, one hundred and eight patients with ischemic stroke with a course of more than half a year were treated in the Department of Neurology and Stroke Unit in our hospital. There were 45 patients with no cognitive impairment in (NC) group after cerebral infarction. There were 27 cases of vascular dementia in (VaD) group and 36 cases of vascular cognitive impairment without dementia (VCIND) group. Transcranial Doppler (TCD) measurement of (MCA) mean blood flow velocity of bilateral middle cerebral artery (MFV), pulsatile index (PI), using breath-holding experiment to observe three groups of subjects before and after MCA breath-holding MFV, calculated the breath-holding index (BHI); Functional transcranial Doppler (fTCD) was used to detect the event-related blood flow of bilateral MCA in three groups. The percentage of event-related blood flow was calculated. The above parameters were used as an index to evaluate hemodynamics. Results: 1 the average age of VCIND and VaD group was longer than that of NC group (P0.05). The education years of); VCIND and VaD group were lower than that of NC group (P0.05). The proportion of VaD patients with hypertension, diabetes and ischemic stroke 鈮
本文编号:2323033
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