Articles: vertebral-artery-abnormalities.
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The craniovertebral junction is anatomically complicated. Representative vertebral artery (VA) variations include the persistent first intersegmental artery (FIA), fenestration of the VA above and below C1 (FEN), posterior inferior cerebellar artery (PICA) from C1/2, and high-riding VA (HRVA). The ponticulus posticus (PP) is a well-known osseous anomaly at C1. Although those anomalies are frequent in patients with cervical deformity, the prevalence of these in subjects with normal cervical spines is still unknown. The aim of this study is to investigate the variations and prevalence of vascular and osseous anomalies based on three-dimensional computed tomographic (3D CT) angiography in patients without any cervical diseases, such as rheumatoid arthritis, Klippel-Feil syndrome, or Down syndrome. ⋯ According to past reports, many VA anomalies could be attributed to congenital or acquired conditions (e.g., rheumatoid arthritis). However, VA anomalies appear to exist even in patients without any such cervical diseases.
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Journal of neurosurgery · Oct 2014
Case ReportsMicrovascular decompression of a C-2 segmental-type vertebral artery producing trigeminal hypesthesia.
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. ⋯ 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.
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The purpose of this study was to determine whether any correlation exists between the level of entry of vertebral arteries (VAs) into the foramen transversarium (FT) and their anomalous course or diameter. To our knowledge there are no studies in the literature concerning the diameter of the vertebral artery (VA) as an impact factor on entrance level. ⋯ The left vertebral arteries arising directly from the aortic arch are often more hypoplastic and often enter the foramen transversarium at a different level from the C6 vertebrae. In patients with hypoplastic VA detected on the basis of ultrasound Color Doppler examination, the presence of anomalies must be considered when planning surgical treatment.
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Retrospective review. ⋯ N/A
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Cardiovasc Intervent Radiol · Aug 2014
Case ReportsEndovascular embolization of an aberrant bronchial artery originating from the vertebral artery in a patient with massive hemoptysis.
Endovascular embolization has become an established procedure for the management of massive or recurrent hemoptysis. The bronchial, nonbronchial systemic and pulmonary arteries are possible sources of bleeding, and the major sources of bleeding are the bronchial arteries (BAs). ⋯ We herein present a rare case of a left BA that originated from the ipsilateral vertebral artery in a patient with massive hemoptysis caused by active tuberculosis. Transarterial embolization was successfully performed, and the hemoptysis has been controlled for 2 months.