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Haemodynamic compensation in a patient with bilateral vertebral artery
The serial magnetic resonance angiography taken (a) 5, (b) 12, and (c) 19 days after onset of neck pain showing progressive steno-occlusion of vertebral arteries and deterioration of vertebrobasilar flow (arrow heads). (a) Short segmental stenosis at the right vertebral artery at the distal portion...
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Published in: | Hong Kong medical journal = Xianggang yi xue za zhi 2022-10, Vol.28 (5), p.410.e1-410.e2 |
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Main Authors: | , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | The serial magnetic resonance angiography taken (a) 5, (b) 12, and (c) 19 days after onset of neck pain showing progressive steno-occlusion of vertebral arteries and deterioration of vertebrobasilar flow (arrow heads). (a) Short segmental stenosis at the right vertebral artery at the distal portion of the right posterior inferior cerebellar artery. (b) Progressive segmental stenosis of the right vertebral artery and newly developed pseudoaneurysmal dilatation in the left vertebral artery. (c) Progressive aggravated stenosis of both vertebral arteries and insufficient vertebrobasilar flow Figure 2. Cerebral angiography taken 25 days after dissection. (a, b) Tapered occlusion of the right vertebral artery just distal to the right posterior inferior cerebellar artery. (c, d) Pseudoaneurysmal dilatation with string-and-pearl sign in the left vertebral artery. (a-d) Steno-occlusive changes of bilateral vertebral arteries, and (e, f) compensated retrograde filling of basilar arteryfrom compensated carotid circulation (arrows) Figure 3. The magnetic resonance angiography taken 50 days after onset of neck pain, showing much more aggravatedsteno-occlusive changes in the entire vertebra-basilarcirculation (arrow heads) Cerebral angiography performed after the first three MRA studies showed nearly complete occlusion of the vertebral arteries just distal to the bilateral posterior inferior cerebellar artery. |
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ISSN: | 1024-2708 2226-8707 |
DOI: | 10.12809/hkmj219536 |