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Target Concepts:
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Query: UMLS:C0012833 (
dizziness
)
9,689
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
The authors report a case of trigeminal hypesthesia caused by compression of the spinal cord by a C-2 segmental-type vertebral artery (VA) that was successfully treated with microvascular decompression. Aberrant intradural VA loops have been reported as causes of cervical myelopathy, some of which improved with microvascular decompression. A 52-year-old man presented with progressive complaints of headache,
dizziness
, left facial numbness, and left upper-extremity paresthesia that worsened when turning his head to the right. Magnetic resonance imaging of the cervical spine showed the left VA passing intradurally between the axis and atlas, foregoing the
C-1
foramen transversarium, and impinging on the spinal cord. The patient underwent left
C-1
and C-2 hemilaminectomies followed by microvascular decompression of an aberrant VA loop compressing the spinal cord. The patient subsequently reported complete resolution of symptoms.
...
PMID:Microvascular decompression of a C-2 segmental-type vertebral artery producing trigeminal hypesthesia. 2497 25
Rotational vertebrobasilar insufficiency, or bow hunter's syndrome, is a rare cause of posterior circulation ischemia, which, following rotation of the head, results in episodic vertigo,
dizziness
, nystagmus, or syncope. While typically caused by dynamic occlusion of the vertebral artery in its V
2
and V
3
segments, the authors here describe a patient with dynamic occlusion of the vertebral artery secondary to a persistent first intersegmental artery, a rare variant course of the vertebral artery. In this case the vertebral artery coursed under rather than over the posterior arch of the
C-1
. This patient was also found to have incomplete development of the posterior arch of
C-1
, as is often seen with this variant. The patient underwent dynamic digital subtraction angiography, which demonstrated occlusion at the variant vertebral artery with head turning. He was then taken for decompression of the vertebral artery through removal of the incomplete arch of
C-1
that was causing the dynamic compression. After surgery the patient had a complete resolution of symptoms. In this report, the authors present the details of this case, describe the anatomical variants involved, and provide a discussion regarding the need for atlantoaxial fusion in these patients.
...
PMID:Rotational vertebrobasilar insufficiency due to compression of a persistent first intersegmental vertebral artery variant: case report. 2771 15
