• M E Futter, F Donati, A S Sadikot, and D R Bevan.
• Can Anaesth Soc J. 1983 Nov 1;30(6):575-80.

AbstractTo assess the efficacy of neostigmine antagonism of succinylcholine phase II block, succinylcholine infusions were given to 17 patients for durations varying from 44 to 192 minutes. A control group (17 patients) received a pancuronium infusion for similar times. Ninety per cent neuromuscular block was maintained in these two groups by adjustment of the infusion rates and, in a third group, with intermittent doses of pancuronium. Neuromuscular transmission was monitored with train-of-four stimulation every 12 seconds and anaesthesia was maintained with N2O-O2-enflurane. Ten minutes after the infusion was stopped, atropine and neostigmine were given to all patients who received pancuronium and to 11 patients in the succinylcholine group whose train-of-four ratio (T4/T1) was less than 0.7. During the subsequent 15 minutes, recovery was more rapid in the succinylcholine group than in either the pancuronium-infusion or pancuronium-bolus groups. It is concluded that succinylcholine-induced phase II block can be safely and rapidly antagonized with neostigmine.

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