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Cheliapina M.V.
Institut vyssheĭ nervnoĭ deiatel'nosti i neĭrofiziologii RAN
Sharova E.V.
Institut vyssheĭ nervnoĭ deiatel'nosti i neĭrofiziologii RAN
Zaĭtsev O.S.
NII neĭrokhirurgii im. akad. N.N. Burdenko RAMN, Moskva
The cholinergic deficiency syndrome in patients with depressed consciousness after severe brain injury
Journal: S.S. Korsakov Journal of Neurology and Psychiatry. 2016;116(7): 17‑24
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To cite this article:
Cheliapina MV, Sharova EV, Zaĭtsev OS. The cholinergic deficiency syndrome in patients with depressed consciousness after severe brain injury. S.S. Korsakov Journal of Neurology and Psychiatry.
2016;116(7):17‑24. (In Russ.)
https://doi.org/10.17116/jnevro20161167117-24
Objective. To determine the clinical and electrophysiological (EEG) signs of cholinergic deficiency in the process of recovery of consciousness in patients with severe brain injury. Materials and methods. Thirty-seven people (24 men and 13 women, mean age 32±14 years) were studied. A comprehensive study included assessment of neurological status, mental activity, and EEG. Results and Conclusion: A set of neurological symptoms, including reduced muscle tone, autonomic disorders (dry mucous membranes and skin, tachycardia, hypotension, gastrointestinal tract), eye movement disorders, that were,in accordance with the literature, characteristicof the cholinergic deficiency syndrome was found. This syndrome was detected against the background of a comatose state, akinetic mutism and mutism with understanding of speech, disintegration of speech, disorientation and amnestic decline. EEG revealed stable over time (months) characteristic changes: slowing and asymmetric alpha activity, equivalent dipole sources of hippocampal and stem localization, persistent strengthening of intra-hemispheric coherent connections, especially on the left side. The regression of the cholinergic deficiency syndrome was accompanied by an increase of regularity, capacity and frequency of alpha-activity (from 7-8 to 9-10 Hz), prevalence of equivalent dipole sources in the hippocampus with their appearance in the occipital cortex, normalization of connections with right-brain coherence with the preservation of their pathologically high values on the left side.
Authors:
Cheliapina M.V.
Institut vyssheĭ nervnoĭ deiatel'nosti i neĭrofiziologii RAN
Sharova E.V.
Institut vyssheĭ nervnoĭ deiatel'nosti i neĭrofiziologii RAN
Zaĭtsev O.S.
NII neĭrokhirurgii im. akad. N.N. Burdenko RAMN, Moskva
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