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  • Title: Neuromuscular and cardiovascular effects of neostigmine and methyl-atropine administered at different degrees of rocuronium-induced neuromuscular block.
    Author: Van den Broek L, Proost JH, Wierda JM, Njoo MD, Hennis PJ.
    Journal: Eur J Anaesthesiol; 1994 Nov; 11(6):481-7. PubMed ID: 7851356.
    Abstract:
    The neuromuscular and cardiovascular effects of neostigmine, 40 micrograms kg-1, and methyl-atropine, 7 micrograms kg-1, administered at different degrees of rocuronium-induced (600 micrograms kg-1) neuromuscular block were evaluated. In one group of patients spontaneous recovery was awaited (Group A; n = 20). Neostigmine and methyl-atropine were administered 2 minutes after rocuronium (Group B; n = 20) or at 25% twitch recovery (Group C; n = 20). Neuromuscular transmission was monitored mechanomyographically. Data are presented as mean (SD) [95%-CI]. The initial rate of recovery (time until a TOF ratio of 0.2) in group B, i.e. 14.2 (4.5) [12.1-16.3] min, was significantly faster than in group C, i.e. 28.7 (5.3) [26.3-31.1] min. However, the time until clinically sufficient recovery (time until a TOF ratio of 0.7) was similar for groups B, i.e. 29.3 (9.5) [24.9-33.7] min and group C, i.e. 31.8 (5.6) [29.2-34.4] min, both significantly different from that of group A, i.e. 53.2 (14.5) [46.5-59.9] min. The increase in heart rate following neostigmine/methyl-atropine was more pronounced in the group reversed at 2 min after rocuronium (P < 0.01).
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