PASSIVE VERTICALIZATION IN PATIENTS WITH SYMPTOMATIC PRECEREBRAL STENOSЕS IN ACUTE STROKE

Abstract

stenoses of precerebral arteries, to determine predictors of the complications of verticalization in order to perform a more differentiated approach to the implementation of the protocol to ensure the safety of the process. Design and methods. The study included 50 patients with hemispheric ischemic stroke. Group 1 (n = 30) included patients without hemodynamically signiicant stenoses of the brachiocephalic arteries (BCA), group 2 (n = 20) included patients with hemodynamically signiicant stenoses of the BCA. Verticalization was carried out on a tilt-table «Vario-Line» («Beka») on the 1, 2, 3, 4, 5 and 14 day from the onset of the disease. Results. In group 2 an earlier decline in the rate of cerebral blood low (CBF), as well as the re-reduction rate of the CBF during the session of verticalization were detected. During the interruption between the sessions, indicators of autoregulation recovered more slowly in patients from group 2. Moreover, the cerebral autoregulation indicators were decreased during the course of verticalization, by 14 day only a quarter of these patients had a ratio of 10 % overshoot.Conclusions. Patients with hemodynamically signiicant stenoses of symptomatic BCA need to use a special regimen of verticalization that would appear «gentle» in order to prevent the complications of verticalization. Assessment of cerebral blood low autoregulation by the overshoot factor can help to identify patients with the increased risk of complications.