颈动脉病变前交通动脉侧支代偿开放的影响因素

目的研究颈动脉重度狭窄闭塞性病变时前交通动脉（ACoA）侧支代偿是否开放的影响因素。方法入选颈动脉重度狭窄（≥70%）闭塞患者102例,颈动脉彩超和经颅多普勒超声（TCD）确定颈动脉与合并其他动脉病变情况及ACoA侧支开通情况,对影响ACoA侧支开通的因素做单变量和多变量的统计分析,以确定ACoA侧支开通的影响因素。结果本组102例中,出现ACoA60例。颈动脉病变AcoA开通率为58.8%,狭窄程度加重ACoA开放增加,但合并颅内动脉病变使ACoA开放减少。结论单侧颈动脉病变狭窄程度的加重,ACoA开放增加;合并颅内动脉严重狭窄时,不利于ACoA的开放。

Factors influencing the presence of anterior communicating artery in patients with carotid disease

Objective To explore the pathogenetic predictors of the presence of anterior communicating artery (ACoA) in patients with carotid steno-occlusive disease. Methods 102 patients with steno-occlusive (≥70% )carotid disease were included. Degree of stenosis, coexisted artery disease and the presence of ACoA were confirmed by ultrasonography and transcranial doppler. Univariate analyses and multivariate logistic regression were performed to identify pathogenetic predictors for the presence of ACoA. Results Of 102 patients with steno-occlusive carotid disease, 60 had AcoA.The severity of stenosis of the unilateral carotid lesion was an independent predictor for the presence of ACoA. The frequency of the presence of ACoA was 58.8% in steno-occlusive carotid disease. The frequency of ACoA was significantly lower with sever intracranial artery stenosis. Conclusions ACoA increases in patients with severe unilateral carotid disease, whereas it is decreased in intracranial artery stenosis.