椎动脉扭曲与颈源性眩晕的关系

摘要

Objective To investigate the relationship between vertebral artery distortion and cervical vertigo.Methods Thirty-one suspected cervical vertigo patients (vertigo group) and 80 non-vertigo patients (control group) were examined with dynamic contrast-enhanced magnetic resonance angiography (DCE-MRA).Cervical straight line distance and the length of vertebral artery were measured,and the lengthening value was calculated.The degree of vertebral artery distortion was evaluated later.Results Twenty-seven patients found severe vertebral-basal arterial stenosis or obliteration by DCE-MRA were eliminated,and vertigo group was in 9 cases,control group in 18 cases.The lengthening value of bilateral carotid artery in vertigo group were significantly longer than those in control group (P ＜0.05-0.01).Correlation analysis showed the lengthening value of vertebral artery in left side and right side were related to cervical vertigo (r =0.275,r =0.255 ; all P ＜ 0.05).There was a positive correlation between lengthening value of vertebral artery in left side and age (r =0.216,P =0.027).There was a negative correlation between cervical length of vertebral artery and age (r =-0.219,P =0.025).Conclusion Vertebral artery distortion is the result of shortened cervical length,and it is related with cervical vertigo.%目的 探讨椎动脉扭曲与颈源性眩晕的关系.方法 对31例拟诊为颈源性眩晕(眩晕组)及80例无眩晕(对照组)的患者进行颅颈动态增强磁共振血管成像(DCE-MRA)检查,测量其颈段直线距离及颈段椎动脉长度,计算其延长值,评价椎动脉扭曲程度.结果 经DCE-MRA检查排除椎-基底动脉有明显狭窄闭塞性改变的患者27例,其中眩晕组9例,对照组18例.眩晕组两侧椎动脉延长值均显著长于对照组(P＜0.05 ～0.01).相关分析显示,左右两侧椎动脉延长值与颈源性眩晕相关(r=0.275,r=0.255；均P＜0.05),左侧椎动脉延长值与年龄呈正相关(r=0.216,P=0.027),颈段直线距离与年龄呈负相关(r=-0.219,P=0.025).结论 椎动脉扭曲源于其颈段缩短,与颈源性眩晕发作有关.