Acceleromyograph

An acceleromyograph is a piezoelectric myograph, used to measure the force produced by a muscle after it has undergone nerve stimulation.

Acceleromyographs may be used, during anaesthesia when muscle relaxants are administered, to measure the depth of neuromuscular blockade and to assess adequacy of recovery from these agents at the end of surgery.

[citation needed] Patients who undergo anesthesia may receive a drug that paralyzes muscles, facilitating endotracheal intubation and improving operating conditions for the surgeon.

[1] Small degrees of muscle blockade can only accurately be measured by the use of quantitative neuromuscular monitoring.

Acceleromyographs are more costly than the more common twitch monitors, but have been shown to better alleviate residual blockade and associated symptoms of muscle weakness, and to improve overall quality of recovery.