针刺对椎-基底动脉供血不足患者TCD和BAEP的影响

目的:探讨针刺治疗椎-基底动脉供血不足(VBI)的作用机理.方法:将40例VBI患者分为针刺组20例和常规组20例,另设正常对照组30例.针刺组在常规治疗的基础上加用针刺治疗,治疗前及治疗2 w后检查多普勒(TCD)及脑干听觉诱发电位(BAEP),观察针刺对VBI患者血流速度及脑电生理的影响.结果:治疗前VBI患者双侧推动脉及基底动脉峰速度明显低于对照组,TCD异常率为75.0%;BAEP异常率为70.0%,以脑干型异常为主.治疗后两组椎动脉及基底动脉峰速度均有改善,TCD异常率为47.5%;治疗后BAEP异常率为45.0%,神经传导功能有明显改善,与常规组相比,针刺组Ⅴ波峰潜伏期、Ⅲ-Ⅴ和Ⅰ-Ⅴ峰间潜伏期改善更显著(P＜0.05).结论:针刺治疗可改善VBI患者的椎-基底动脉血流速度及脑干神经传导功能.

Effects of acupuncture on TCD and BAEP in the patient of vertebrobasilar insufficiency

Objective To explore mechanisms of acupuncture in treatment of vertebrobasilar insufficiency. Methods Forty cases of vertebrobasilar insufficiency (VBI) were divided into an acupuncture group and a routine treatment group, 20 cases in each group. The acupuncture group were treated by routine treatment plus acupuncture. Transcranial Doppler ultrasonography and brain stem auditory evoked potentials (BAEP) before treatment and 2 weeks after treatment were determined to investigate the effects of acupuncture on blood flow velocity and brain elec-trophysiology in the patient of VBI. Results Before treatment, the blood velocity of vertebral artery and vertebrobasilar artery at bilateral sides in the patient of VBI decreased as compared with the control group, and the abnormal rate of TCD was 75. 0% (30/40) and the abnormal rate of BAEP was 70. 0% (28/40) , characterized with brainstem abnormality types after treatment, the blood velocity in the two groups was improved and the abnormal rate of TCD was 47. 5% (19/40) , and the abnormal rate of BEAP was 45. 0% (18/40). The nerve conduction of the two groups was improved, the peak latency of V wave and interpeak latency of III-V and I -V in the acupuncture group were improved significantly as compared with the routine treatment group (P<0. 05). Conclusion Acupuncture can improve the blood velocity of vertebrobasilar artery and the nerve conduction function of brainstem in the patient of vertebrobasilar insufficiency.