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  • Title: [Value of early acoustic and somatosensory evoked potentials in monitoring and prognostic assessment of coma in barbiturate therapy--comparison with clinical aspects and EEG].
    Author: Reisecker F, Witzmann A, Löffler W, Leblhuber F, Deisenhammer E, Valencak E.
    Journal: EEG EMG Z Elektroenzephalogr Elektromyogr Verwandte Geb; 1987 Mar; 18(1):36-42. PubMed ID: 3106004.
    Abstract:
    25 comatose patients suffering from severe cerebral lesions of different etiology were examined during barbiturate-therapy by Glasgow-Pittsburg-Coma-Scoring-System (GPCS), EEG, somatosensory and brainstem acoustic evoked potentials. The findings were correlated in view of prognostic prediction and importance for monitoring. A modified form of the Glasgow-Outcome-Score (GOS; independent-survival, dependent-survival, dead) was used for evaluating the outcome. In case of an initial GPCS less than 10 points none of the patients survived, in case of GPCS greater than 10 points 11 out of 19 patients survived. The latter relation of survival was also found in patients with improving or impairing scores during the observation period. In case of initial burst-suppression pattern in the EEG 7 out of 11 patients survived, in case of diffuse abnormalities with or with-out additional focal signs - 4 out of 10 patients survived, but in the latter there was none with an outcome of independent survival. All patients with an isoelectric EEG died. In case of bilateral recording of scalp- SEP 7 out of 11 patients survived, in case of unilateral loss of scalp-EP 4 out of 8 patients survived, but in the latter cases none with an outcome of independence. All patients with initial bilateral failure of scalp-SSEP or loss during the observation period died. In case of bilateral registrable BAEP (wave I to V) 11 out of 17 patients survived. All patients with initial uni- or bilateral failure of those potentials or loss during the observation period died.(ABSTRACT TRUNCATED AT 250 WORDS)
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