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Makino M, Kaneko S, Sato S, Kawazoe Y, Ichinomiya T, Murata H, Yoshitomi O, Hara T. Effects of the attachment method of the stimulating electrodes Nihon-Kohden NM-345Y™ and changes in forearm position on stimulus current values during calibration in electromyography-based neuromuscular monitoring: a single-center experimental study. J Anesth 2023; 37:888-895. [PMID: 37653275 DOI: 10.1007/s00540-023-03250-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 08/21/2023] [Indexed: 09/02/2023]
Abstract
PURPOSE The traditionally recommended method for attaching electromyography (EMG) electrodes (NM-345Y™) during EMG-based neuromuscular monitoring developed by Nihon-Kohden may decrease the monitoring accuracy when forearm limb position changes. This study investigated methods for attaching stimulating electrodes that maintained stable EMG-based neuromuscular monitoring accuracy, regardless of forearm limb position changes. METHODS This single-center experimental study recruited 28 healthy adults from October 2022 to December 2022. The NM-345Y™ was attached to the forearm using three patterns: Pattern N, electrodes attached according to the attachment pattern recommended by Nihon-Kohden; Pattern U, electrodes attached along the ulnar nerve identified using an ultrasound device; Pattern C, electrodes attached where the ulnar nerve crosses the line connecting the centers of the anode and cathode of the stimulating electrodes. The stimulus current values during calibration were measured at three forearm positions for each attachment pattern: supination 90 degrees; pronation 0 degrees; pronation 90 degrees. The differences in stimulus current values caused by forearm position changes were calculated as the difference between values at supination 90 degrees and pronation 0 degrees and between values at supination 90 degrees and pronation 90 degrees. RESULTS Pattern C showed significantly smaller differences than Pattern N between the stimulus current values at supination 90 degrees and pronation 0 degrees (p = 0.018) and between the stimulus current values at supination 90 degrees and pronation 90 degrees (p = 0.008). CONCLUSION Crossing the ulnar nerve with the line connecting the anode and cathode of the stimulating electrodes may stabilize EMG-based neuromuscular monitoring accuracy.
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Affiliation(s)
- Madoka Makino
- Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Shohei Kaneko
- Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
| | - Shuntaro Sato
- Clinical Research Center, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Yurika Kawazoe
- Clinical Research Center, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Taiga Ichinomiya
- Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Hiroaki Murata
- Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Osamu Yoshitomi
- Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Tetsuya Hara
- Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
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Wong P, Ashby O. Monitoring and Antagonism of Neuromuscular Blockade: Problems with Succinylcholine. Anesthesiology 2023; 139:712-714. [PMID: 37702620 DOI: 10.1097/aln.0000000000004705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Affiliation(s)
- Patrick Wong
- Te Whatu Ora - Health New Zealand, Hamilton, Waikato, New Zealand (P.W.).
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Fuchs-Buder T, Romero CS, Lewald H, Lamperti M, Afshari A, Hristovska AM, Schmartz D, Hinkelbein J, Longrois D, Popp M, de Boer HD, Sorbello M, Jankovic R, Kranke P. Peri-operative management of neuromuscular blockade: A guideline from the European Society of Anaesthesiology and Intensive Care. Eur J Anaesthesiol 2023; 40:82-94. [PMID: 36377554 DOI: 10.1097/eja.0000000000001769] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Recent data indicated a high incidence of inappropriate management of neuromuscular block, with a high rate of residual paralysis and relaxant-associated postoperative complications. These data are alarming in that the available neuromuscular monitoring, as well as myorelaxants and their antagonists basically allow well tolerated management of neuromuscular blockade. In this first European Society of Anaesthesiology and Intensive Care (ESAIC) guideline on peri-operative management of neuromuscular block, we aim to present aggregated and evidence-based recommendations to assist clinicians provide best medical care and ensure patient safety. We identified three main clinical questions: Are myorelaxants necessary to facilitate tracheal intubation in adults? Does the intensity of neuromuscular blockade influence a patient's outcome in abdominal surgery? What are the strategies for the diagnosis and treatment of residual paralysis? On the basis of this, PICO (patient, intervention, comparator, outcome) questions were derived that guided a structured literature search. A stepwise approach was used to reduce the number of trials of the initial research ( n = 24 000) to the finally relevant clinical studies ( n = 88). GRADE methodology (Grading of Recommendations, Assessment, Development and Evaluation) was used for formulating the recommendations based on the findings of the included studies in conjunction with their methodological quality. A two-step Delphi process was used to determine the agreement of the panel members with the recommendations: R1 We recommend using a muscle relaxant to facilitate tracheal intubation (1A). R2 We recommend the use of muscle relaxants to reduce pharyngeal and/or laryngeal injury following endotracheal intubation (1C). R3 We recommend the use of a fast-acting muscle relaxant for rapid sequence induction intubation (RSII) such as succinylcholine 1 mg kg -1 or rocuronium 0.9 to 1.2 mg kg -1 (1B). R4 We recommend deepening neuromuscular blockade if surgical conditions need to be improved (1B). R5 There is insufficient evidence to recommend deep neuromuscular blockade in general to reduce postoperative pain or decrease the incidence of peri-operative complications. (2C). R6 We recommend the use of ulnar nerve stimulation and quantitative neuromuscular monitoring at the adductor pollicis muscle to exclude residual paralysis (1B). R7 We recommend using sugammadex to antagonise deep, moderate and shallow neuromuscular blockade induced by aminosteroidal agents (rocuronium, vecuronium) (1A). R8 We recommend advanced spontaneous recovery (i.e. TOF ratio >0.2) before starting neostigmine-based reversal and to continue quantitative monitoring of neuromuscular blockade until a TOF ratio of more than 0.9 has been attained. (1C).
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Affiliation(s)
- Thomas Fuchs-Buder
- From the Department of Anaesthesiology, Intensive Care and Peri-operative Medicine, CHRU de Nancy, Nancy, France (TF-B), Department of Anesthesia and Critical Care, Consorcio Hospital General Universitario de Valencia, Methodology Department, Universidad Europea de Valencia, Valencia, Spain (C-S.R), Department of Anesthesiology and Intensive Care, Technical University of Munich, Munich, Germany (HL), Anesthesiology Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates (ML), Department of Paediatric and Obstetric Anaesthesia, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark (AA), Department of Anaesthesiology & Intensive Care Medicine, Copenhagen University Hospital, Hvidovre, Denmark (A-MH), Department of Anesthesiology, CUB Hôpital Erasme, Bruxelles, Belgium (DS), Department of Anaesthesiology and Intensive Care Medicine, University Hospital of Cologne, Cologne, Germany (JH), Department of Anesthesia and Intensive Care, Hôpital Bichat-Claude Bernard, Université de Paris, Paris, France (DL), Department of Anaesthesia, Critical Care Medicine, Emergency Medicine and Pain Medicine, University Hospitals of Wuerzburg, Wuerzburg, Germany (MP, PK), Department of Anesthesiology Pain Medicine & Procedural Sedation and Analgesia Martini General Hospital Groningen, Groningen, The Netherlands (HDDB), Anesthesia and Intensive Care, AOU Policlinico - San Marco, Catania, Italy (MS), Clinic for Anesthesiology and Intensive Therapy, University Clinical Center Nis, School of Medicine, University of Nis, Nis, Serbia (RJ)
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Cvachovec K. Suxamethonium - is it still needed? ANESTEZIOLOGIE A INTENZIVNÍ MEDICÍNA 2022. [DOI: 10.36290/aim.2022.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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Schmartz D, Bernard P, Sghaier R, Fils JF, Fuchs-Buder T. A modified TOF-ratio to assess rocuronium-induced neuromuscular block: a comparison with the usual TOF-ratio. Anaesth Crit Care Pain Med 2022; 41:101088. [PMID: 35489709 DOI: 10.1016/j.accpm.2022.101088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 02/16/2022] [Accepted: 02/16/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND The TOFscan is an acceleromyographic neuromuscular monitor that calculates and displays two measurements: first, a train-of-four (TOF) ratio, or ratio of the fourth twitch in the TOF-sequence, T4, and the first twitch, T1 (T4/T1). In addition, a second, modified ratio is displayed (T4/Tr), which refers to the ratio between T4 and a reference twitch (Tr), calculated as the mean value of the four twitches in a TOF-sequence [Tr = (T1 + T2 + T3 + T4)/4]. T4/Tr is calculated before establishment of neuromuscular block. METHODS This prospective observational study included 35 adult patients. NMB induced by a rocuronium bolus of 0.6 mg/kg was continuously monitored at the adductor pollicis with the TOFscan and both TOF-ratios were simultaneously assessed. Primary outcome was the comparison of recovery to a TOF-ratio ≥ 0.9 calculated as T4/T1 and T4/Tr. RESULTS The first value of the T4/T1 ≥ 90% was 90.9 (1.1) % and the simultaneously calculated T4/Tr was 69.6 (9.3) %, P < 0.001. The first value of the T4/Tr ≥ 90% was 90.5 (1.1) %, the simultaneously T4/T1 was 97.3 (2.5) %, P < 0.001. Time from injection of rocuronium to a TOF-ratio ≥ 90% was 56.2 ± 17.1 min for the T4/T1 and 65.3 ± 19.3 min for the T4/Tr, P < 0.001. During onset, a TOF ratio ≤ 20% was reached 145.5 (50.5) s after rocuronium when considering T4/T1, and 114.5 (45) s with the T4/Tr, P < 0.001. CONCLUSION The present study shows the limitations of the usually determined acceleromyographic TOF ratio (T4/T1) in determining adequate neuromuscular recovery. The T4/T1 ratio significantly overestimates recovery compared with the T4/Tr ratio. Clinical decisions of adequate neuromuscular recovery based on the new T4/Tr ratio may reduce the incidence of residual paralysis and improve patient safety.
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Affiliation(s)
- Denis Schmartz
- CHU Brugmann, Université Libre de Bruxelles, 4, Place Van Gehuchten, 1020 Bruxelles, Belgium.
| | - Paul Bernard
- CHRU de Nancy, Rue du Morvan, 54511 Vandoeuvre-lès-Nancy, France
| | - Raouf Sghaier
- CHRU de Nancy, Rue du Morvan, 54511 Vandoeuvre-lès-Nancy, France
| | | | - Thomas Fuchs-Buder
- CHRU de Nancy, Université de Lorraine, Rue du Morvan, 54511 Vandoeuvre-lès-Nancy, France
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Schmartz D, Sghaier R, Bernard P, Fils JF, Fuchs-Buder T. Neuromuscular block in patients 80 years and older: a prospective, controlled study. BMC Anesthesiol 2021; 21:225. [PMID: 34517841 PMCID: PMC8436544 DOI: 10.1186/s12871-021-01443-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 08/28/2021] [Indexed: 11/10/2022] Open
Abstract
Background An increasing number of patients older than 80 years are undergoing anesthesia, but little information is available regarding pharmacodynamic effects of myorelaxants in this population. This study aims to compare the time course of rocuronium neuromuscular block in patients ≥ 80 years with those of younger adults. Methods Under total intravenous anesthesia with propofol and sufentanil, time course of a bolus of rocuronium 0.6 mg/kg neuromuscular block was assessed with acceleromyography in patients ≥ 80 and in patients 20–50 years old. Onset time, clinical duration, duration until 90% and 100% recovery of baseline were determined. Results Data from 32 patients were analyzed, 16 were ≥ 80 years and 16 were 20–50 years old. Demographic data are shown in Table 1. In the group ≥ 80, onset time was 190 s ± 46 s compared to 123 s ± 40 s in the group 20–50, P < 0.001 and the clinical duration was 52 [48–69.5] min and 36 [34–41] min, respectively, P < 0.001. Duration to 90% recovery of baseline was 77.5 [71–88.5] min and duration to 100% recovery of baseline was 91.2 [82.2–98] min in patients ≥ 80 years and the corresponding values in the patients 20–50 years old were 53.5 [49–55.5] min and 59.5 [56.5–70.25] min, respectively, P < 0.001. Conclusion Compared to younger adults rocuronium shifted in patients ≥ 80 years from a rapid onset, intermediate acting compound to a slower onset, long-acting compound. Trial registration ClinicalTrials.gov identifier: NCT03551652 (29/05/2018).
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Affiliation(s)
- Denis Schmartz
- CHU Brugmann, Université Libre de Bruxelles, 4 Place Van Gehuchten, 1020, Bruxelles, Belgium.
| | - Raouf Sghaier
- CHRU de Nancy, Rue du Morvan, 54511, Vandœuvre-lès-Nancy, France
| | - Paul Bernard
- CHRU de Nancy, Rue du Morvan, 54511, Vandœuvre-lès-Nancy, France
| | | | - Thomas Fuchs-Buder
- CHRU de Nancy, Université de Lorraine, Rue du Morvan, 54511, Vandœuvre-lès-Nancy, France
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Schmartz D, Fuchs-Buder T. Routine neuromuscular monitoring before succinylcholine. Comment on Br J Anaesth 2020; 125: 629-36. Br J Anaesth 2021; 126:e103-e104. [PMID: 33478731 DOI: 10.1016/j.bja.2020.12.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/20/2020] [Accepted: 12/20/2020] [Indexed: 11/27/2022] Open
Affiliation(s)
- Denis Schmartz
- Department of Anaesthesiology, CHU Brugmann, Brussels, Belgium.
| | - Thomas Fuchs-Buder
- Department of Anaesthesia & Critical Care Medicine, CHRU de Nancy, Nancy, France
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