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What is vertebrobasilar dolichoectasia?
Vertebrobasilar dolichoectasia (VBD) is characterized by dilatation, elongation, and tortuosity of the vertebrobasilar arteries, with the presenting symptoms resulting from ischemia or compression of the brainstem.
What does dolichoectasia mean?
Dolichoectasia is an arterial disease that causes dilatation and/or tortuosity of the affected vessel. The prevalence of dolichoectasia increases with age, and this disease is also associated with other traditional cardiovascular risk factors.
What are the symptoms of vertebrobasilar dolichoectasia?
The mass effect of VBD can compress the nearby brainstem and cranial nerves, leading to symptoms such as weakness, dizziness, choking on water, cranial nerve damage, neurogenic hypertension, or pseudo space-occupying lesions within cranial fossa [4, 6, 29-31].
What is vertebrobasilar ischaemia?
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. Blockage of these arteries occurs over time through a process called atherosclerosis, or the build-up of plaque.
What is the vertebrobasilar system?
The vertebrobasilar (VB) system, comprised of the vertebral and basilar arteries, serves as a critical arterial supply to the cervical spinal cord brainstem, cerebellum, thalamus, and occipital lobes.
How many vertebral arteries are there?
Here’s the vertebral artery. The two vertebral arteries pass through these openings in each vertebra. After passing through the transverse process of the atlas, the artery turns backwards, and then medially, to pass through the atlanto-occipital membrane and the dura, just below the foramen magnum, which is here.
Is Dolichoectasia hereditary?
In rare instances, an underlying hereditary condition, connective tissue disorder, or infection predispose to the development of IADE. However, most cases are sporadic and associated with traditional vascular risk factors including advanced age, male gender, and arterial hypertension.
What is Vertebrobasilar tortuosity?
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.
What is vertebrobasilar stroke?
Vertebrobasilar strokes are interruptions of blood flow to the posterior circulation. While these types of strokes are relatively uncommon, they are a disproportionate cause of morbidity and mortality compared to anterior circulation strokes due to discreet symptoms that resemble non-stroke medical conditions.
What are the symptoms of vertebral artery stenosis?
What are the symptoms of vertebral artery stenosis?
- dizziness or vertigo.
- sudden, unexplained falls that occur without loss of consciousness (known as “drop attacks”)
- sudden, severe weakness in the legs that can cause falls.
- trouble seeing in one or both eyes, including blurred or double vision.
What kind of disease is vertebrobasilar dolichoectasia?
Vertebrobasilar dolichoectasia (VBD) is a rare disease characterized by significant expansion, elongation, and tortuosity of the vertebrobasilar arteries. Current data regarding VBD are very limited. Here we systematically review VBD incidence, etiology, characteristics, clinical manifestations, tre …
What kind of disease is vertebrobasilar dilatative arteriosia?
Vertebrobasilar dilatative arteriopathy (dolichoectasia) Dolichoectasia (dilatative arteriopathy) describes marked elongation, widening, and tortuosity of arteries. The intracranial vertebral and basilar arteries are preferentially involved.
What kind of arteries are involved in dolichoectasia?
Dolichoectasia (dilatative arteriopathy) describes marked elongation, widening, and tortuosity of arteries. The intracranial vertebral and basilar arteries are preferentially involved. Dolichoectatic arteries usually have an abnormally large external diameter and a thin arterial wall, with degenerat …
When does the prevalence of dolichoectasia increase?
It is also known as megadolichobasilar anomaly, basilar ectasia, or even as tortuous vertebrobasilar system. The prevalence of dolichoectasia increases with age, with the age of onset greater than 40 years and a male predominance.[7,8,15,25,50]
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