Acceleromyograph

Acceleromyograph

An acceleromyograph is a device used to measure the acceleration of a contracting muscle, typically the adductor pollicis muscle, in order to monitor quantitative neuromuscular function and transmission. It is considered a more complete method for monitoring neuromuscular transmission.From: Manual of Neuroanesthesia [2017], Deep versus moderate neuromuscular block in laparoscopic bariatric surgeries: effect on surgical conditions and pulmonary complications [2019], Equine Anesthesia and Pain Management [2023]

Neuromuscular blockade and opioids

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Published in Hemanshu Prabhakar, Charu Mahajan, Indu Kapoor, Manual of Neuroanesthesia, 2017

Prasanna U. Bidkar, Lakshmi K. Narmadha

Acceleromyography measures the acceleration of the contracting muscle. The principle is based on Newton's second law of motion: force equals mass times acceleration. After nerve stimulation, acceleration of the thumb can be measured using a piezoelectric ceramic wafer with electrodes on both sides. Other muscles preferred for monitoring the acceleration (other than thumb) include orbicularis oculi or the corrugator supercilii in response to facial nerve stimulation.33

Deep versus moderate neuromuscular block in laparoscopic bariatric surgeries: effect on surgical conditions and pulmonary complications

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Published in Egyptian Journal of Anaesthesia, 2019

Mohamed M. Abu Yazed, Sameh Abdelkhalik Ahmed

Quantitative neuromuscular function was monitored using an acceleromyograph (TOF-watch-SX, MSD BV, Oss, Netherlands) that measures the adductor pollicis muscle response. Two electrodes were placed over the course of the ulnar at the radial side of the flexor carpi ulnaris muscle 1 cm proximal to the wrist joint. The contractions of the ipsilateral adductor pollicis muscle (causing adduction of the thumb) were detected by attaching a sensor to the tip of the thumb and placing it in a flexible adaptor to generate preload. TOF-watch-SX was calibrated and stabilized after induction of general anesthesia and before rocuronium administration, according to manufacturer specifications. Neuromuscular block was assessed after endotracheal intubation at 15-second intervals.

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Neuromuscular blockade and opioids

Deep versus moderate neuromuscular block in laparoscopic bariatric surgeries: effect on surgical conditions and pulmonary complications