Abstract: ObjectiveTo study the change of cerebral blood flow and hemorheology in patients with brain post-traumatic syndrome (PTS) and heavy cerebral trauma.Methods122 cases(A group) of PTS and 113 cases(B group) of heavy cerebral trauma were explored the anterior cerebral artery (ACA),middle cerebral artery (MCA),posterior cerebral artery (PCA),vertebral artery (VA) and basilar artery (BA) with transcranial Doppler (TCD). Their blood viscosity, plasm viscosity, red blood cell (RBC) deformed exponent were also measured.ResultsThe blood stream in most of patients with PTS manifested slowing especially in MCA,ACA,VA and BA at left. However,most of patients with heavy cerebral trauma manifested vasospasm. The blood and plasm viscosity of both groups obviously increased, but RBC deformed exponent decreased.ConclusionPatients with PTS suffered organic brain damage, mainly in levo-hemisphere.The patients with PTS or with heavy cerebral trauma present disorder in hemorheology.

Key words: post-traumatic syndrome, cerebral trauma, transcranial Doppler(TCD), hemorheology