• Br J Anaesth · Sep 2023

    Observational Study

    Effect of sugammadex on processed EEG parameters in patients undergoing robot-assisted radical prostatectomy.

    • Iñigo Rubio-Baines, Cristina Honorato-Cia, Miguel Valencia, Alfredo Panadero, Elena Cacho-Asenjo, Oscar Manzanilla, Manuel Alegre, Jorge M Nuñez-Cordoba, and Antonio Martinez-Simon.
    • Department of Anaesthesia and Critical Care, Clínica Universidad de Navarra, Pamplona, Spain. Electronic address: irubiob@unav.es.
    • Br J Anaesth. 2023 Sep 1; 131 (3): 523530523-530.

    BackgroundSugammadex has been associated with increases in the bispectral index (BIS). We evaluated the effects of sugammadex administration on quantitative electroencephalographic (EEG) and electromyographic (EMG) measures.MethodsWe performed a prospective observational study of adult male patients undergoing robot-assisted radical prostatectomy. All patients received a sevoflurane-based general anaesthetic and a continuous infusion of rocuronium, which was reversed with 2 mg kg-1 of sugammadex i.v. BIS, EEG, and EMG measures were captured with the BIS Vista™ monitor.ResultsTwenty-five patients were included in this study. Compared with baseline, BIS increased at 4-6 min (β coefficient: 3.63; 95% confidence interval [CI]: 2.22-5.04; P<0.001), spectral edge frequency 95 (SEF95) increased at 2-4 min (β coefficient: 0.29; 95% CI: 0.05-0.52; P=0.016) and 4-6 min (β coefficient: 0.71; 95% CI: 0.47-0.94; P<0.001), and EMG increased at 4-6 min (β coefficient: 1.91; 95% CI: 1.00-2.81; P<0.001) after sugammadex administration. Compared with baseline, increased beta power was observed at 2-4 min (β coefficient: 93; 95% CI: 1-185; P=0.046) and 4-6 min (β coefficient: 208; 95% CI: 116-300; P<0.001), and decreased delta power was observed at 4-6 min (β coefficient: -526.72; 95% CI: -778 to -276; P<0.001) after sugammadex administration. Neither SEF95 nor frequency band data analysis adjusted for EMG showed substantial differences. None of the patients showed clinical signs of awakening.ConclusionsAfter neuromuscular block reversal with 2 mg kg-1 sugammadex, BIS, SEF95, EMG, and beta power showed small but statistically significant increases over time, while delta power decreased.Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.

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