General Trends in Hemodynamic Disorders in Acute Vertebrocerebrospinal Injury at the Cervical Level

Abstract

The present study was undertaken to define the general trends in hemodynamic changes in acute vertebrocerebrospinal injury at the cervical level in relation to the severity of cerebrospinal conduction disorders. An invasive central hemodynam-ic study was conducted in 8 and 7 patients with complete and partial spinal cord conduction disturbance, respectively. Magnetic resonance imaging and neurophysiological studies (electromyography and somatosensory evoked potentials) verified the degree of an impairment of the spinal cord and its function. The performed study has demonstrated that in complete spinal cord conduction disturbance, mainly hypokinetic circulation develops in acute vertebrocerebrospinal injury at the cervical level, normokinetic circulation occurred in 15.4% of cases. In partial conduction disturbance, hypokinetic circulation also predominates, but with a 2.8-fold increase in the proportion of normokinetic circulation. In complete and partial spinal cord conduction disturbance, hemodynamic parameters other than stroke volume are statistically significantly decreased to a greater extent. The pulmonary hemodynamic response is unidirectional, by showing systemic circulatory changes.