Brain Disorders & Therapy

Features of the collateral circulation in the vertebrobasilar system in the setting of the cervical spinal injury

Global Summit on Stroke

August 03-05, 2015 Birmingham, UK

Mykola Salkov1, Vitaliy Tsymbaliuk2 and Lydmila Dzyak1

Scientific Tracks Abstracts: Brain Disord Ther

Abstract:

Introduction: Trauma of the vertebral arteries in the setting of the cervical spinal injury is one of the reasons of the cerebellar
stroke. We investigated the compensatory mechanisms of blood circulation in the vertebral arteries which hinder the occurrence
of the stroke.
Purpose: Investigation of the mechanisms of the compensation of cerebral circulation in the setting of the trauma of vertebral
arteries.
Methods: We conducted magnetic resonance imaging examination and angiography of the cervical and vertebral arteries in
three patients with a dislocation fracture of the cervical region of vertebral column. In two cases we conducted the morphological
examination of injured vertebral arteries, cerebellum and brainstem.
Results: In one patient with a dislocation fracture of С4-С5 there was a posttraumatic occlusion of both vertebral arteries.
Blood circulation in unaffected regions of vertebral arteries and brain was conducted through collateral vessels. In one patient
there was a dislocation fracture of С3-С4. Unilateral vertebral artery occlusion was found. Cerebral circulation occurred
through the contralateral artery and by retrograde blood flow. In the patient with a dislocation fracture of С6-С7 one vertebral
artery was injured with no evidence of total occlusion. Hemodynamic changes were not found. Morphological examination
indicated the presence of injury of the vertebral artery wall at the site of a dislocation fracture and arterial thrombosis.
Conclusions: Blood circulation in the vertebrobasilar system in the setting of the trauma of vertebral arteries may occur
through collateral vessels or by retrograde blood flow. Thrombosis and occlusion occurs in the arteries in the setting of the
trauma of vertebral arteries in consequence of a dislocation fracture.

Biography :

Mykola Salkov has worked as a Neurosurgeon in Dniepropetrovsk Regional hospital (Ukraine). He has also worked as Assistant Professor of Neurological Surgery
of the Dniepropetrovsk State Medical Academy (Ukraine). He has completed his PhD in Medical Sciences (Neurosurgery) in June 2005.