Clinical study of effect of vertebral artery kinking on cerebral hemodynamics

VernacularTitle:椎动脉迂曲对脑血流动力学影响的临床研究
Author: Chuanqin FANG ; Jingcheng LI ; Changyue GAO ; Huadong ZHOU
Publication Type:Journal Article
Keywords: Ischemic attack,transient; Vertebral artery; Hemodynamic phenomena; Cerebral angiography
From: Chinese Journal of Geriatrics 2010;29(9):712-714
CountryChina
Language:Chinese
Abstract: Objective To evaluate the effect of vertebral artery kinking on cerebral hemodynamics. Methods The patients with vertebral artery kinking on digital subtraction angiograph (DSA) were selected from 223 patients with vertebral-basilar artery transient ischemic attack, then the changes of vertebral artery hemodynamics were evaluated using transcranial color Doppler (TCD). Results There were 84 patients with vertebral artery kinking among 223 patients with vertebral-basilar artery transient ischemic attack. Patients with vertebral artery kinking were older and had more vascular risk factors than patients without vertebral artery kinking. Compared with the control group, patients showed decreased blood flow rate such as peak velocity (Vp) and mean velocity (Vm), increased pulsatility index (PI) and resistant index (RI) in vertebral artery kinking group. Conclusions Vertebral artery kinking is common abnormal artery among patients with vertebral-basilar artery transient ischemic attack, it leads to hemodynamic changes. Age and vascular risk factors are potential causes of vertebral artery kinking.