What does dominant left vertebral artery mean?
A vertebral artery was considered dominant when a side-to-side diameter difference >0.16mm exists. In 54% of the cases the left diameter was dominant, whereas in 30% the right diameter was dominant. In 16% of the cases, the left arterial diameter was equal to the right (Table 3).
What does the left vertebral artery do?
The vertebral arteries provide blood to the brain and spine, keeping the nervous system healthy.
How is a blocked artery in the brain treated?
If the narrowing of the artery is severe, and doesn’t respond to medications or is greater than a 50% blockage, more invasive treatment may be needed. The main options for treating narrowing of the arteries in the brain are: Angioplasty to reopen the artery with possible stenting. Cerebral artery bypass surgery.
What part of the brain does the left vertebral artery supply?
cerebellum
As the supplying component of the vertebrobasilar vascular system, the vertebral arteries supply blood to the upper spinal cord, brainstem, cerebellum, and posterior part of brain.
What is stenosis of left vertebral artery?
Vertebral artery stenosis (also called vertebrobasilar insufficiency) happens when the vertebral and basilar arteries at the base of the brain become blocked. These arteries supply blood to the brainstem and the cerebellum.
What are the symptoms of vertebral artery stenosis?
Symptoms of Vertebral Artery Stenosis A vertebrobasilar stroke classically causes vertigo, ataxia and loss of balance. Various cranial nerves can be dysfunctional. Breathing and consciousness may be impaired.
What are the symptoms of hypoplasia of the right vertebral artery?
It increases the intensity of the following symptoms: 1 headaches; 2 dizziness; 3 blood pressure; 4 drowsiness; 5 emotional disturbance (lethargy, frequent mood swings, a state of depression); 6 (more items)
What are the symptoms of dolichoectasia of the vertebrobasilar arteries?
Vertebrobasilar dolichoectasia (VBD) is a condition characterized by ectasia, elongation and tortuosity of the basilar artery. It may manifest clinically by compression of the cranial nerves, ischemic symptoms or intracranial bleeding. Rarely, the dilated and ecstatic basilar trunk may manifest as obstructive hydrocephalus.
What happens when two vertebral arteries are blocked?
Two separate vertebral arteries, which from the basilar artery, feed in this region. Over time, atherosclerosis causes plaque buildup leading to a blockage of the two arteries. A temporary blockage or severe restriction of blood flow is an ischemic event and holds serious consequences.