Stroke

Biography

Biography: Mykola Salkov

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 unaff ected 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 fl ow. 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 fl ow. Th rombosis and occlusion occurs in the arteries in the setting of the trauma of vertebral arteries in consequence of a dislocation fracture.