摘要
目的分析椎动脉椎间段走行变异(椎动脉未经第6颈椎横突孔上行入颅)与眩晕症状发生的关系。方法选择54例有眩晕症状的患者为眩晕组,同期选择56例健康体检无心、脑血管病史及眩晕症状者为对照组。采用彩色多普勒血流显像(CDFI)检测椎动脉椎间隙段的走行变异类型及收缩期峰值流速(PSV),TCD检测颅内段椎动脉PSV,分析走行变异对颅内、外椎动脉PSV的影响以及与眩晕症状发生的关系。结果①眩晕组和对照组患者椎动脉走行变异发生率,分别为83%(45/54)和21%(12/56),P=0.001。②两组共57例椎动脉走行变异的患者,双侧变异者比单侧更容易发生眩晕(P=0.021);椎动脉走行高、低位变异(第3颈椎水平以上为高位变异)与眩晕的发生率差异无统计学意义(P=1.000)。③走行变异者的椎动脉椎间隙段和颅内段的PSV分别为(56±10)和(53±10)cm/s,走行正常者分别为(59±12)和(56±11)cm/s,两者的椎动脉椎间隙段PSV比较,两者颅内段的PSV比较,差异有统计学意义(P值分别为0.047和0.041);走行变异者椎动脉颅内段流速低于椎间隙段,两者间差异有统计学意义(P=0.038)。结论CDFI与TCD联合检测可客观分析椎动脉走行变异,该变异可能是引起眩晕的原因。
Objective To analyze the relationship between the anatomical variation of intervertebral segment of vertebral artery（the artery do not get into skull via C-6 transverse foramen） and the onset of vertigo. Methods Fifty-four patients with vertigo were selected as vertigo group, and 56 healthy person without history of cardiocerebrovascular diseases and vertigo were selected as control group. The types of variation of the intervertebral segment of vertebral artery and the peak systolic velocity （PSV） were detected by color Doppler flow imaging （ CDFI）, and the PVS of intracranial segment of the vertebral artery was detected by TCD. The effect of running variation on the PVS of intracranial and extravertebral arteries and their relationship with the onset of vertigo were analyzed. Results The incidences of the variation of vertebral artery running in the vertigo and control groups were 83% （45/54） and 21.4% （ 12/56）, respectively （P =0. 001 ）. There were 57 patients with variation of vertebral artery running altogether in both groups, and the patients with bilateral variation were more likely to develop vertigo than those with unilateral variation （ P = 0. 021 ） ; There was no statistical significance between the high （ higher than C3 ） or low position of variations of the vertebral artery running and the incidence of vertigo（ P = 1. 000）. The PSVs of intervertebral segment of vertebral artery and intracranial segment in patients with running variation were 56 ± 10 and 53± 10 cm/s respectively, and in patients with normal vertebral artery running were 59 ± 12 and 56 ± 1 lcm/s, respectively. There were statistical differences between the PSVs of intervertebral and intracranial segments in patients with running variation and normal vertebral artery（ P = 0. 047 and 0. 041, respectively） ; and the PSV in patients with running variation in intracranial segment of vertebral artery was lower than that in intervertebral segment, and there were significant differences between them �
出处
《中国脑血管病杂志》
CAS
2007年第10期458-462,共5页
Chinese Journal of Cerebrovascular Diseases
关键词
超声检查
多普勒
彩色
变异
椎动脉
眩晕
Ultrasonography, Doppler, color
Variation, vertebral artery
Vertigo
