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.

2018年9月29日 · 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?

Vertebrobasilar insufficiency (VBI) describes a temporary set of symptoms due to decreased blood flow 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]

2023年7月17日 · 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 …

2023年3月19日 · Vertebrobasilar may also be called vertebrobasilar insufficiency (VBI) if it has a whole-brain effect or vertebral basilar ischemia if there is restricted blood flow to a particular organ.

What is vertebrobasilar insufficiency? Vertebrobasilar insufficiency is a condition characterized by poor blood flow to the posterior (back) portion of the brain, which is fed by two vertebral arteries that join to become the basilar artery.

2023年10月6日 · Vertebrobasilar insufficiency is most commonly caused by atherosclerosis and/or embolism. Other causes include arterial dissection, fibromuscular dysplasia, and coagulopathies 1. Most commonly, atherosclerosis causes reduced blood flow and therefore perfusion of the posterior circulation.

Head turning causes temporary occlusion of the ipsilateral vertebral artery. VBI results if the contralateral vertebral artery has a fixed occlusion [5]. Improvement of symptoms in neutral position is considered pathognomonic [6]

2023年7月17日 · 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 …

2013年2月13日 · Although there is some controversy as to whether vertebral artery screening is reliable based on concerns of its sensitivity, it is apparent that VBI is a relatively common problem even in young adults.