Intraoperative monitoring of the brainstem state during basal tumor removal, anesthesia specifics, and vital functions (Report 1)

Functional state of the brain stem during neurosurgical removal of the basal tumor was controlled via registration of short-latency brainstem auditory evoked potentials (BAEP). Their parameters were compared with those controlled by an anesthesiologist. It has been revealed that intraoperative increase in delay of the BAEP with preservation of correlation between amplitudes and without major alteration in correlation between interpeak intervals does not indicate any brainstem disorder threatening vital functions. Short-latency auditory evoked potentials, in the absence of damaging effect to the brainstem, largely refl ect peculiarities and the course of anesthetic management.

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Stupak V.V. – doctor of medical sciences, professor, head of neurosurgery clinic, e-mail: vstupak@niito.ru