Vertebrobasilar insufficiency (VBI) is reduced or stopped blood flow to the back of your brain. Hardening of your arteries (atherosclerosis) often causes this condition. VBI impacts your balance and movement, as well as increases your risk of stroke and other health issues.

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椎基底動脈供血不足 (Vertebrobasilar insufficiency, VBI)，又稱椎基底動脈循環不全，是導致中樞性眩暈和老人眩暈之常見因素。 椎基底動脈是負責供應腦幹、小腦、丘腦及枕葉營養的重要血管，若異常則會影響人體自主神經系統 (如呼吸，心率等)、意識、協調、平衡 ...

Jul 17, 2023 · Vertebrobasilar insufficiency (VBI) is defined by inadequate blood flow through the posterior circulation of the brain, supplied by the 2 vertebral arteries that merge to form the basilar artery. The vertebrobasilar arteries supply the cerebellum, medulla, midbrain, and occipital cortex.

椎基底動脈循環不全(vertebrobasilar insufficiency, VBI)是導致中樞性眩暈和老人眩暈之常見因素。 人體供給腦部血液的動脈系有二：一為內頸動脈系，負責供應大腦血液；另一為椎基底動脈系(包括椎動脈與基底動脈)，負責供應小腦與腦幹血液。

Sep 29, 2018 · When the blood flow in the arteries of your vertebrobasilar system is significantly reduced, this condition is known as vertebrobasilar insufficiency (VBI). What causes VBI? VBI occurs when...

Vertebrobasilar insufficiency (VBI) describes a temporary set of symptoms due to decreased blood flow (ischemia) in the posterior circulation of the brain. The posterior circulation supplies the medulla, pons, midbrain, cerebellum and (in 70-80% of people) supplies the posterior cerebellar artery to the thalamus and occipital cortex. [1] .

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VBI，椎基底动脉系统短暂缺血发作，当各种病因使椎基底 动脉 系统的血流量下降到一定程度，就可以出现相应的脑缺血症状，一般不超过24小时，但可反复发作，医学上称为椎基底动脉系统短暂缺血发作，简称“VBI”。 有些病人症状不重但24小时内不缓解，又称为椎基底动脉系统供血不足。 正常双侧椎动脉血流量为200毫升/分钟，相当于全脑血流量的1/5。 VBI的病因：（1）高血压、糖尿病、高脂血症、 动脉硬化 以及血管炎症导致 椎基底动脉 系统的血管管腔狭窄、 血栓形 …

Oct 6, 2023 · Vertebrobasilar insufficiency is a clinical syndrome caused by transient ischemia of the vertebrobasilar circulation, formed by the vertebral and basilar arteries, which forms the posterior circulation of the brain 1.