Vertebral artery dominance affects basilar artery curvature and vertebrobasilar junctional infarct
10.3760/cma.j.issn.1671-8925.2012.01.020
- VernacularTitle:椎动脉优势对基底动脉弯曲及椎基底动脉连接部脑梗死的影响
- Author:
Dao-Pei ZHANG
1
;
Yu-Ming XU
;
Shu-Ling ZHANG
;
Hong-Tao ZHANG
Author Information
1. 郑州大学附属第一医院
- Keywords:
Vertebral artery dominance;
Basilar artery curvature;
Cerebral infarct
- From:
Chinese Journal of Neuromedicine
2012;11(1):79-82
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effect of vertebral artery (VA) dominance on basilar artery (BA) curvature and pontine or cerebellar infarct occurring around the vertebrobasilar junction of VA. Methods Radiological data (infarct laterality,VA dominance,BA curvature and their directional relationships) were analyzed in 91 patients with acute unilateral pontine or posterior inferior cerebellar artery (PICA) territory infarcts.Multiple regression analysis was performed to predict the moderate to severe BA curvature. Results The dominant VA frequently happened on the left side.Most patients had an opposite directional relationship between the dominant VA and BA curvature. Pontine infarct frequently happened opposite to the side of BA curvature and PICA infarct on the same side as the non-dominant VA side.The VA diameter was the only independent predictor for moderate to severe BA curvature (OR: 2.70; 95％CI: 1.22-5.98). Conclusion VA dominance is an important predictive factor of BA curvature,and BA curvature is usually opposite to the side of BA curvature; VA dominance and BA curvature caused by VA dominance increase the incidence of vertebrobasilar junctional infarcts.
