What are the effects of your left vertebral artery not connecting to your basilar artery?

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Answer

If the Circle of Willis can still maintain at least 50% blood pressure with the blood flow from the one good artery, then no infarctions will occur. Patients with blockage in the LVA can exist with no visable signs of illness as long as the otra continues to function properly. If the remaining VA enlarges as a result of increased blood flow, a transient ischemic attack may result, temporarily depriving the brain of oxygen.

Because the patient is now without a backup system, they are more at risk when exhibiting low blood presure, hypertension, or arteriosclerosis.

Of course, if the left vertebral were severed via trauma, it would require surgery to repair because of the bleed into the brain would cause swelling and brain trauma.

First answer by Surferpros. Last edit by Surferpros. Contributor trust: 240 [recommend contributor]. Question popularity: 31 [recommend question]

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