J Korean Neurol Assoc.
2009 Nov;27(4):388-392.
Vertebrobasilar Insufficiency Caused by Lateral Head Tilting
- Affiliations
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- 1Department of Neurology, Sungkyunkwan University School of Medicine, Samsung Medical Center, Neuroscience Center, Seoul, Korea. daewon@skku.edu
Abstract
- Vertebrobasilar insufficiency (VBI) in rotatory vertebral artery occlusion syndrome can be caused by voluntary head turning in the yaw plane. We report a case of VBI for head tilting in the roll plane. Transcranial Doppler on left head tilting resulted in decreased blood flow in both vertebral arteries. A CT angiogram revealed that the stenotic left vertebral artery was very close to an enlarged thyroid gland, suggesting mechanical compression of the vertebral artery during head tilt.
