The changes of transcranial doppler and brainstem auditory evoked potential in patients with posterior circulation ischemia
ZHANG Shu-ping
ZHANG Hua
SHA Jing-ying
FENG Li-qun
Abstract：Objective To investigate the changes of transcranial doppler and brainstem auditory evoked potential in patients with posterior circulation ischemia (PCI). Methods One hundred and thirty-four patients with PCI were divided into the infarct group(58 cases) and the non-infarct group(76 cases). All patients were examined by transcranial doppler(TCD) and brain-stem auditory evoked potential ( BAEP). Results The abnormality of TCD was detected in 82 cases(61. 2% ). The abnormality rate of TCD in the infraction group(75.8% ) was higher than the non-infarct group(P<0.05). The abnormality of BAEP was detected in 123 cases (91. 8% ) , in which the abnormality rate in brain stem type (47. 2% ) was the highest. The main abnormal findings of BAEP included prolonged peak latency(PL) of Ⅴ waves and prolonged inter-peak Latency(IPL) of Ⅲ-Ⅴ waves. Conclusions TCD may detect the cerebral homodynamic abnormalities sensitively and BAEP may detect the electro-neurophysiologic abnormalities sensitively in patients with PCI. Combined examination of TCD and BAEP contributes to the early diagnosis, assessment and prognosis for PCI.
Keywords：Ischemic attacktransientUltrasonographydopplertranscranialEvoked potentialsauditorybrainstem
Publication Date：2010-01-01
Online Publishing Date：2026-09-14(First online date of this platform, not the publication date of the document)