Therapeutic effect and cerebrovascular hemodynamics of transcutaneous acupoint electrioacupuncture on posterior circulation ischemia.

Objective To observe the influence of transcutaneous acupoint electrical stimulation on the clinical effect and cerebrovascular hemodynamics in patients with posterior circulation ischemia(PCI).Methods Seventy patients with PCI characterized by vertigo were chosen and randomly divided into electrical stimulation group(n=35)and faked electrical stimulation group(n=35).Ten healthy individuals were included as the normal controls.The electrical stimulation group were treated with electrical stimulation by Dredging Meridian Instrument for 20 min,while the faked electrical stimulation group were treated without electricity but with a hint of ongoing therapy for 20 min.Mean blood flow velocity(Vm)of bilateral internal carotid arteries(ICA),bilateral vertebral arteries(VA),basilar arteries(BA)and bilateral cerebrovascular resistance were monitored before and after electrical stimulation by CVA.Results Compared with the faked electrical stimulation group,the electrical stimulation group showed significant improvement in subjective therapeutic effects(P0.01)increase in mean blood flow velocity of bilateral ICA,VA BA and decrease in bilateral cerebrovascular resistance(P0.01).Conclusion The transcutaneous acupoint electrical stimulation can attenuate the vertigo,increase the cerebral blood flow and decrease cerebrovascular resistance in patients with PCI.