Closed-loop administration of atracurium. Steady-state neuromuscular blockade during surgery using a computer controlled closed-loop atracurium infusion.
The advent of newer muscle relaxants with predictable rates of metabolism and times of offset of neuromuscular blockade now makes it possible to use intravenous infusion safely as a mode of delivery. This has many advantages over administration by intermittent bolus. Moreover, it is feasible to use a servo system for their delivery. We have developed and evaluated such a system which is portable and requires little computer expertise to set up and use. It is a useful adjunct to routine anaesthesia, as well as a potentially powerful research tool.
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