A 28-year-old male asked:
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what is the definition or description of: vertebral artery dissection?

2 doctor answers
Dr. Robert Binford
38 years experience Thoracic Surgery
A tear in the vessel: Arteries are made up of several layers much like an onion. Occaisionally a small tear in the most inner layer can occur. The blood flows through the artery under high pressure. This jet of blood can separate the layers causing the vessel to obstruct (close off). In the vertebral artery this could cause a stroke.
Answered on Nov 30, 2013
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Dr. Peter Ihle
54 years experience Orthopedic Surgery
Same as any artery: A dissection means the blood flow doen not all flo thru the center of the artery, but leaks between the the intimal layers and splits them, gradually becomming large enough that it impedes or stops the reg flow thru the artery. Can lead 2 occlusion or rupture.
Answered on Nov 30, 2013
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