title: [Paradoxical dynamics in the values of bispectral index for bilateral registration in a patient during parastem tumor removal (a clinical case)].
abstract: The paper describes an unusual clinical case. During a neurosurgical operation (removal of parastem tumor (neuroma) on the right side), bilateral registration of the bispectal index (BSI) in order to monitor a hypnotic component of anesthesia showed that the tumor removal stage was marked by a paradoxical reaction of the BSI as an increase in its values up to 70-80% (corresponds to the patient's emergence) on the right, ipsilaterally, with the preserved low BSI values on the left--30-40%. Possible explanations of the observed are considered.
authors.forename: A Iu
authors.initials: AIu
authors.lastname: Lubnin
authors.forename: E M
authors.initials: EM
authors.lastname: Salova
authors.forename: A N
authors.initials: AN
authors.lastname: Konovalov
authors.forename: V A
authors.initials: VA
authors.lastname: Kopachev
mesh_terms: D000768:Anesthesia, General; D001921:Brain / Q000503:physiopathology* / Q000601:surgery; D020295:Brain Stem Neoplasms / Q000503:physiopathology / Q000601:surgery*; D056805:Consciousness Monitors; D004569:Electroencephalography / Q000295:instrumentation / Q000379:methods; D006801:Humans; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative / Q000295:instrumentation / Q000379:methods*; D009442:Neurilemmoma / Q000503:physiopathology / Q000601:surgery*; D016896:Treatment Outcome