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Vertebral artery dissection is one of the two types of cervical artery dissection.The other type, carotid artery dissection, involves the carotid arteries.Vertebral artery dissection is further classified as being either traumatic (caused by mechanical trauma to the neck) or spontaneous, and it may also be classified by the part of the artery involved: extracranial (the part outside the skull ...
A dissection typically results in a tear in one of the layers of the arterial wall. [2] The result of this tear is often an intramural hematoma and/or aneurysmal dilation [2] [6] in the arteries leading to the intracranial area. [2] [7] Signs and symptoms of a cervical artery dissection are often non-specific and can be localized or generalized.
Arterial dissections become life-threatening when growth of the false lumen prevents perfusion of the true lumen and the related end organs. For example, in an aortic dissection, if the left subclavian artery orifice were distal to the origin of the dissection, then the left subclavian would be said to be perfused by the false lumen, while the left common carotid (and its end organ, the left ...
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]
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Segments of vertebral artery anterior projection. The vertebral artery may be divided into four parts: The first (preforaminal) part runs upward and backward between the anterior scalene and the longus colli muscles. In front of it are the internal jugular and vertebral veins, and is crossed by the inferior thyroid artery; the left vertebral is ...
Within 20 minutes, her future would be hanging precariously; Caitlin suffered a vertebral artery dissection, which causes stroke – cutting off blood flow to the brain.
Artery dissection may refer to: Aortic dissection; Carotid artery dissection; Coronary artery dissection; Vertebral artery dissection This page was last edited on ...