Why, how and when to monitor neuromuscular function.

BACKGROUND: Traditionally, anaesthetists evaluate the effect of neuromuscular blocking agents clinically. We observe the fasciculations following injection of succinylcholine, the movements of the reservoir bag, the spontaneous movements of the patient, headlift etc. However, with the advent of new fast acting neuromuscular blocking agents and the increasing awareness of the problems of postoperative residual neuromuscular block there is an mounting understanding of the importance of a more objective assessment of the neuromuscular function during anaesthesia. PURPOSE OF LECTURE: In this lecture I shall give my personal bias on whether or not routine monitoring of neuromuscular function during anaesthesia is essential. Also, I shall try to answer the question "why, how and when should we monitor neuromuscular function during clinical anaesthesia?