train-of-four stimulus

train-·of-·four stim·u·lus

a method for measuring magnitude and type of neuromuscular blockade, based on the ratio of the amplitude of the fourth evoked mechanical response to the first one, when four supramaximal 2-Hz electrical currents are applied for 2 seconds to a peripheral motor nerve.
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References in periodicals archive ?
In contrast to tetanus, train-of-four nerve stimulation has the advantage of patient comfort, since the train-of-four stimulus is much less painful to a non-anaesthetized individual than a tetanic stimulus.
Overview of the introduction of neuromuscular monitoring to clinical anaesthesia
At this time there was only one very weak twitch on a train-of-four stimulus.
Normal rocuronium sensitivity after titrated intraoperative sugammadex
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