Vertebrobasilar insufficiency (VBI) occurs when there is inadequate blood flow through the posterior circulation of the brain in the vertebral and basilar arteries.

Mar 1, 2022 · 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.

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]

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.

Feb 19, 2016 · Vertebrobasilar insufficiency (VBI) is a common contributing factor of vertigo and “dizziness” symptoms in the elderly1. Incorporating a vertebrobasilar insufficiency screening element into your positioning and positional electro- or videonystagmography routine takes literally seconds and provides benefit2.

A person with vertebrobasilar insufficiency (VBI) may experience symptoms lasting for a few minutes or permanent symptoms. These symptoms may include: Loss of vision in part or all of both eyes; Double vision; Vertigo (spinning sensation) Numbness or tingling; Nausea and vomiting; Slurred speech; Loss of coordination, dizziness or confusion ...

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?

Oct 6, 2023 · 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.

Transient vertebrobasilar insufficiency (VBI) caused by head turning, also known as head turning syncope, is increasingly being recognized as a potentially incapacitating and debilitating condition.

Vertebrobasilar insufficiency (VBI) is poor blood flow to the back portion of the brain or decreased circulation to the brainstem. This decreased circulation can be caused by compression of the vertebral and basilar arteries which supply blood to many vessels in in the back of the brain.