Comparison of the TOF-Scan™ acceleromyograph to TOF-Watch SX™: Influence of calibration

Colegrave, Nora; Billard, V.; Motamed, Cyrus; Bourgain, Jean-Louis

doi:10.1016/j.accpm.2016.01.003

Cited by 18 publications

(21 citation statements)

References 15 publications

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“…This study comprised the second phase of the initial study that compared the TS accelerometer to the TOF Watch accelerometer, and was conducted from January to October 2018 [8].…”

Section: Methodsmentioning

confidence: 99%

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Comparison of Train of Four Measurements with Kinemyography NMT DATEX and Accelerography TOFscan

2021

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Introduction: This study was designed to compare the Datex neuromuscular transmission (NMT) kinemyography (NMTK) device with the TOFscan (TS) accelerometer during the onset and recovery of neuromuscular blockade. Patients and methods: This prospective study included adult patients who were scheduled to undergo elective surgery with general anesthesia and orotracheal intubation. The TS accelerometer was randomly placed at the adductor pollicis on one hand, and the NMTK was placed on the opposite arm. Anesthesia was initiated with remifentanil target-controlled infusion (TCI) and 2.0–3.0 mg/kg of propofol. Thereafter, 0.5 mg/kg of atracurium or 0.6 mg/kg of rocuronium was injected. If needed, additional neuromuscular blocking agents were administered to facilitate surgery. First, we recorded the train of four (TOF) response at the onset of neuromuscular blockade to reach a TOF count of 0. Second, we recorded the TOF response at the recovery of neuromuscular blockade to obtain a T4/T1 90% by both TS and NMTK. Results: There were 32 patients, aged 38–83 years, with the American Society of Anesthesiologists (ASA) Physical Status Classification I–III included and analyzed. Surgery was abdominal, gynecologic, or head and neck. The Bland and Altman analysis for obtaining zero responses during the onset showed a bias (mean) of 2.7 s (delay) of TS in comparison to NMTK, with an upper/lower limit of agreement of [104; −109 s] and a bias of 36 s of TS in comparison to NMTK, with an upper/lower limit of agreement of [−21.8, −23.1 min] during recovery (T4/T1 > 90%). Conclusions: Under the conditions of the present study, the two devices are not interchangeable. Clinical decisions for deep neuromuscular blockade should be made cautiously, as both devices appear less accurate with significant variability.

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“…This study comprised the second phase of the initial study that compared the TS accelerometer to the TOF Watch accelerometer, and was conducted from January to October 2018 [8].…”

Section: Methodsmentioning

confidence: 99%

“…We previously compared the TOFscan (TS) accelerometer to the TOF Watch accelerometer [8]. The TS seemed to have some advantages, including the absence of the need for calibration without affecting the recovery results.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Train of Four Measurements with Kinemyography NMT DATEX and Accelerography TOFscan

2021

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“…Previous work suggested poor agreement between the two devices at deep block levels, and better agreement during recovery. 11 From a scientific standpoint, the two monitors are not interchangeable: the mean baseline train-of-four ratios were significantly higher when measured with the TOF-Watch (110.0 ± 5%) than TOFscan (100.0 ± 1%); and, despite starting from a higher train-of-four baseline, the time to complete block (defined as train-of-four count of 0) was more than 1 min faster when measured with the TOF-Watch. Practically, however, the bias between the two monitors was minimal, the limits of agreement were narrow, and the train-of-four ratios at extubation were clinically similar.…”

Section: Given the Documented Struggles Anesthesiologists Have Gettinmentioning

confidence: 99%

Workflow Eats Optimum Care for Lunch

Sandberg

Brull

2018

Anesthesiology

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“…Fortunately, many of these emerging technologies have emphasized the ease of use to increase the acceptance and popularity of the devices. While validation studies are still in progress, early reports investigating new monitors have been very promising [60][61][62][63][64][65][66][67]. It appears that the anesthesia community will have multiple options to select from when adopting quantitative monitoring.…”

Section: The Introduction Of Objective Monitoringmentioning

confidence: 99%

Clinical Practice Guideline for the Management of Neuromuscular Blockade: What Are the Recommendations in the USA and Other Countries?

Nemes

Renew

2020

Curr Anesthesiol Rep

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Purpose of Review This review addresses various societal guidelines, standards, and consensus statements regarding optimal neuromuscular blockade management. We discuss the historical evolution of neuromuscular management as a means of identifying possible future trends. Recent Findings While a recent international panel of experts has called for abandoning clinical assessment and subjective evaluation using a peripheral nerve stimulator in favor of adopting quantitative monitoring, few anesthesia societies mandate similar practices at the moment. Summary The current status of neuromuscular monitoring in the world is still variable and unsatisfactory. Nevertheless, a positive trend can be observed in the anesthesia community to adopt and learn this neglected technique. The development of user-friendly monitoring devices should also help this process, but anesthesia national societies still need to do a lot to replace outdated and substandard practices.

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Comparison of the TOF-Scan™ acceleromyograph to TOF-Watch SX™: Influence of calibration

Cited by 18 publications

References 15 publications

Comparison of Train of Four Measurements with Kinemyography NMT DATEX and Accelerography TOFscan

Comparison of Train of Four Measurements with Kinemyography NMT DATEX and Accelerography TOFscan

Workflow Eats Optimum Care for Lunch

Clinical Practice Guideline for the Management of Neuromuscular Blockade: What Are the Recommendations in the USA and Other Countries?

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