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Classification of vertebral artery loop formation and association with cervicogenic dizziness

Published online by Cambridge University Press:  27 October 2016

A Yenigun ,
M E Ustun ,
S Tugrul ,
R Dogan  and
O Ozturan
A Yenigun*
Affiliation:
Department of Otorhinolaryngology, Faculty of Medicine, Bezmialem Vakif University, Fatih, Istanbul, Turkey
M E Ustun
Affiliation:
Neurosurgery Clinic, Konya Hospital, Turkey
S Tugrul
Affiliation:
Department of Otorhinolaryngology, Faculty of Medicine, Bezmialem Vakif University, Fatih, Istanbul, Turkey
R Dogan
Affiliation:
Department of Otorhinolaryngology, Faculty of Medicine, Bezmialem Vakif University, Fatih, Istanbul, Turkey
O Ozturan
Affiliation:
Department of Otorhinolaryngology, Faculty of Medicine, Bezmialem Vakif University, Fatih, Istanbul, Turkey
*
Address for correspondence: Dr Alper Yenigun, Department of Otorhinolaryngology, Faculty of Medicine, Bezmialem Vakif University, Vatan Street, Adnan Menderes Blvd, 34093 Fatih/Istanbul Fax: +90 (212) 453 18 70 E-mail: [email protected]
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Abstract

Objective:

An examination was conducted of the number, level, clinical association and treatment approaches for vertebral arterial loop formation in patients with this condition with and without concurrent cervicogenic dizziness, and classified them according to the vertebral artery segment in which it was present.

Method:

A cross-sectional retrospective study.

Results:

Thirty-seven patients who had undergone double-sided magnetic resonance angiography were examined; vertebral arterial loop formation was observed at only 1 level in 26 patients and at several levels in 9 patients. Segment one (V1) was involved in 78.3 per cent of cases and segment two (V2) was involved in 21.6 per cent. Symptoms in patients with vertebral arterial loop formation included: positional vertigo, in 100 per cent; and pulsatile tinnitus, in 83.7 per cent.

Conclusion:

Loop formation at the vertebral artery was observed most often on the proximal side in patients with cervicogenic dizziness (78.3 per cent). The incidence on the left side was twice as high as on the right side.

Keywords

Vertebral ArteryMagnetic Resonance AngiographyVertigoDizziness
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 130 , Issue 12 , December 2016 , pp. 1115 - 1119
Copyright
Copyright © JLO (1984) Limited 2016 

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