Effect of Surface Electrode Position on the Compound Action Potential Evoked by Ulnar Nerve Stimulation During Isoflurane Anaesthesia

Kalli, I.

doi:10.1093/bja/65.4.494

Cited by 19 publications

(3 citation statements)

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“…That is, the EMG can detect muscle activities more sensitively than the AMG [ 6 9 10 ]. Additionally, the EMG can yield more consistent responses because it is not affected by restriction of a movement of a muscle [ 9 11 ]. The AMG may need a higher stimulation current to properly detect muscle contractions than the EMG.…”

Section: Discussionmentioning

confidence: 99%

Comparison of clinical validation of acceleromyography and electromyography in children who were administered rocuronium during general anesthesia: a prospective double-blinded randomized study

Jung

Hwang

Won

et al. 2016

Korean J Anesthesiol

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BackgroundElectromyography and acceleromyography are common neuromuscular monitoring devices. However, questions still remain regarding the use of acceleromyography in children. This study compared the calibration success rates and intubation conditions in children after obtaining the maximal blockade depending on each of the devicesMethodsChildren, 3 to 6 years old, were randomly allocated to the TOF-Watch SX acceleromyography group or the NMT electromyography group. The induction was performed with propofol, fentanyl, and rocuronium. The bispectral index and 1 Hz single twitch were monitored during observation. The calibration of the each device was begun when the BIS dropped to 60. After successful calibration, rocuronium 0.6 mg/kg was injected. A tracheal intubation was performed when the twitch height suppressed to 0. The rocuronium onset time (time from administration to the maximal depression of twitch height) and intubating conditions were rated in a blinded manner.ResultsThere was no difference in the calibration success rates between the two groups; and the calibration time in the electromyography group (16.7 ± 11.0 seconds) was shorter than the acceleromyography group (28.1 ± 13.4 seconds, P = 0.012). The rocuronium onset time of the electromyography group (73.6 ± 18.9 seconds) was longer than the acceleromyography group (63.9 ± 18.8 seconds, P = 0.042) and the intubation condition of the electromyography group (2.27 ± 0.65) was better than the acceleromyography group (1.86 ± 0.50, P = 0.007).ConclusionsElectromyography offers a better compromise than acceleromyography with respect to the duration of calibration process and surrogate for the optimal time of tracheal intubation in children.

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Section: Discussionmentioning

confidence: 99%

Comparison of clinical validation of acceleromyography and electromyography in children who were administered rocuronium during general anesthesia: a prospective double-blinded randomized study

Jung

Hwang

Won

et al. 2016

Korean J Anesthesiol

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“…Surface electrodes were attached over the ulnar nerve and over the first interosseus muscle and the index finger [10]. The train-of-four sequence was used (2 Hz frequency, 100 ms pulse width), the stimulus output being a rectangular wave with a current of 0-70 mA.…”

Section: Methodsmentioning

confidence: 99%

Effect of nitrous oxide on cisatracurium infusion demands: a randomized controlled trial

2010

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BackgroundRecent studies have questioned our previous understanding on the effect of nitrous oxide on muscle relaxants, since nitrous oxide has been shown to potentiate the action of bolus doses of mivacurium, rocuronium and vecuronium. This study was aimed to investigate the possible effect of nitrous oxide on the infusion requirements of cisatracurium.Methods70 ASA physical status I-III patients aged 18-75 years were enrolled in this randomized trial. The patients were undergoing elective surgery requiring general anesthesia with a duration of at least 90 minutes. Patients were randomized to receive propofol and remifentanil by target controlled infusion in combination with either a mixture of oxygen and nitrous oxide (Nitrous oxide/TIVA group) or oxygen in air (Air/TIVA group). A 0.1 mg/kg initial bolus of cisatracurium was administered before tracheal intubation, followed by a closed-loop computer controlled infusion of cisatracurium to produce and maintain a 90% neuromuscular block. Cumulative dose requirements of cisatracurium during the 90-min study period after bolus administration were measured and the asymptotic steady state rate of infusion to produce a constant 90% block was determined by applying nonlinear curve fitting to the data on the cumulative dose requirement during the study period.ResultsController performance, i.e. the ability of the controller to maintain neuromuscular block constant at the setpoint and patient characteristics were similar in both groups. The administration of nitrous oxide did not affect cisatracurium infusion requirements. The mean steady-state rates of infusion were 0.072 +/- 0.018 and 0.066 +/- 0.017 mg * kg-1 * h-1 in Air/TIVA and Nitrous oxide/TIVA groups, respectively.ConclusionsNitrous oxide does not affect the infusion requirements of cisatracurium.Trial registrationClinicalTrials.gov NCT01152905; European Clinical Trials Database at http://eudract.emea.eu.int/2006-006037-41.

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“…Recording electrodes were placed on first dorsal interosseus muscle and index finger. 5 The stimulus output was a rectangular wave with a current of 0 -70 mA, and the machine calibrated automatically by searching for optimal signal levels before setting the supramaximal level. A stable baseline calibration signal was awaited before administration of rocuronium, and a second calibration was performed approximately 10 min after induction of anesthesia.…”

Section: Methodsmentioning

confidence: 99%

Quantitation of the Effect of Nitrous Oxide on Rocuronium Infusion Requirements Using Closed-loop Feedback Control

2008

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Effect of Surface Electrode Position on the Compound Action Potential Evoked by Ulnar Nerve Stimulation During Isoflurane Anaesthesia

Cited by 19 publications

References 0 publications

Comparison of clinical validation of acceleromyography and electromyography in children who were administered rocuronium during general anesthesia: a prospective double-blinded randomized study

Comparison of clinical validation of acceleromyography and electromyography in children who were administered rocuronium during general anesthesia: a prospective double-blinded randomized study

Effect of nitrous oxide on cisatracurium infusion demands: a randomized controlled trial

Quantitation of the Effect of Nitrous Oxide on Rocuronium Infusion Requirements Using Closed-loop Feedback Control

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