VARIABLE LEFT AND/OR RIGHT VERTEBRAL ARTERY IN PREVERTEBRAL PART: A REVIEW OF FEATURES IN THE POSTNATAL PERIOD

Ljiljana Vasović, Goran Radenković, Milena Trandafilović, Gordana Đorđević

DOI Number
-
First page
1
Last page
25

Abstract


The vertebral artery (VA), as the first upstream branch of the subclavian artery on both sides courses having four topographical parts ― prevertebral, cervical, atlantic and intracranial to the interlocking connection into basilar artery. However, its amenability to the variations can be at the origin, and/or course and/or termination. The review of postnatal features of variable VA origin and its prevertebral part was performed according to the 171 literature case reports. Among them, 94 cases of variable left VA, 30 cases of variable left and right VAs and 47 cases of variable right VA have been analyzed. The left and/or right VAs were showed as simple or common vessels or segmentally duplicated at their origin from the aorta and/or subclavian or common carotid or external carotid artery or unusual arterial stems. Different patterns of single VA origin and/or arrangement associated with main supra-aortic arteries variants were presented as 30 primary (basic) and 32 complementary models. Nine different vascular and/or visceral pathological processes were common independently of unilateral or bilateral variability of the VA; however, there were only eight patients with pathological changes in variable VA.


Key words: Human vertebral artery, morphologic variants, postnatal status, associated disorders


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References


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