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Han J, Oh AY, Hwang JW, Nam SW. Relationship between muscle mass ratio and rocuronium dose required for maintaining deep neuromuscular blockade: A prospective observational study. Anaesth Crit Care Pain Med 2024; 43:101368. [PMID: 38460887 DOI: 10.1016/j.accpm.2024.101368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 03/11/2024]
Abstract
BACKGROUND Deep neuromuscular blockade (NMB) has benefits in various surgical procedures, however, precise quantitative neuromuscular monitoring is crucial for its proper maintenance and recovery. Neuromuscular blocking agent dosage relies on actual body weight (ABW), but this varies among individuals. Therefore, this study hypothesizes that there is a correlation between the rocuronium requirement for deep NMB and muscle mass ratio measured by bioelectric impedance analysis. METHODS Ninety adult female patients undergoing laparoscopic operation were enrolled in this study. Muscle and fat masses were assessed using a body composition analyser. Deep NMB, defined as a post-tetanic count of 1-2, was maintained through the continuous infusion of rocuronium. The primary outcome involves determining the correlation between the rocuronium dose required for deep NMB and the muscle mass ratio. Conversely, secondary outcomes included assessing the relationship between the rocuronium dose for deep NMB and fat mass ratio, and ABW. Additionally, we investigated their relationship with rocuronium onset time and profound blockade duration. RESULTS No relationship was observed between the muscle mass ratio and rocuronium dose required for maintaining deep NMB (r = 0.059 [95% CI = 0.153-0.267], p = 0.586). Fat mass ratio and ABW showed no correlation with the rocuronium dose, whereas rocuronium onset time was positively correlated with muscle mass ratio (r = 0.327) and negatively correlated with fat mass ratio (r = -0.302), respectively. Profound blockade duration showed no correlation with any of the assessed variables. CONCLUSIONS No correlation was detected between muscle mass ratio and the rocuronium dose required to achieve deep NMB.
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Affiliation(s)
- Jiwon Han
- Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Ah-Young Oh
- Department of Anesthesiology and Pain Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Department of Anesthesiology and Pain Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
| | - Jung-Won Hwang
- Department of Anesthesiology and Pain Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Department of Anesthesiology and Pain Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Sun Woo Nam
- Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, Seoul, Republic of Korea
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An G, Qiu Y, Zhou Z, Ding X, Li C. Effects of a single dose of rocuronium in patients with different body fat percentages: A randomised controlled trial. Clin Exp Pharmacol Physiol 2024; 51:e13836. [PMID: 38302078 DOI: 10.1111/1440-1681.13836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 11/20/2023] [Accepted: 12/06/2023] [Indexed: 02/03/2024]
Abstract
The pharmacodynamics in patients with high body fat percentage might be similar to those in obese patients. This randomised controlled clinical trial observed the effects of rocuronium in patients with different percent body fats (PBFs). Fifty-four patients who underwent elective urological or pelvic surgery under general anaesthesia at Shanghai General Hospital were included in the present study; 51 patients were included for data analysis. Patients with normal PBF (<25%) were given a single dose of rocuronium calculated based on total body weight (N-TBW, control group). Patients with a higher PBF (≥25%) were given a single dose of rocuronium calculated based on total body weight (H-TBW). Patients with higher PBF and rocuronium were dosed based on fat-free mass (H-FFM). A train of four (TOF)-Watch acceleromyography monitor was used to measure the effects of the rocuronium. H-TBW (91.9 ± 28.8 s) had significantly shorter onset time than N-TBW and H-FFM (p = 0.003). H-TBW had significantly longer clinical duration time and pharmacological duration time than the other groups (p = 0.000 and 0.000, respectively); the TOF ratio0.25-0.9 time was significantly different among the three groups (p = 0.005). There were no significant differences in the recovery time (p = 0.103) or recovery index (p = 0.159) among the three groups. The effects of rocuronium dosed based on FFM in patients with high PBFs are similar to those in normal patients. A single dose of rocuronium calculated based on TBW might shorten the onset time, prolong the clinical and pharmacological duration times, and prolong the recovery time.
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Affiliation(s)
- Guanghui An
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiaotong University Affiliated Shanghai General Hospital, Shanghai, China
- Department of Anesthesiology and Perioperative Medicine, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yan Qiu
- Clinical Research Center, Shanghai General Hospital, Shanghai Jiaotong University Affiliated Shanghai General Hospital, Shanghai, China
| | - Zheliang Zhou
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiaotong University Affiliated Shanghai General Hospital, Shanghai, China
| | - Xueying Ding
- Clinical Research Center, Shanghai General Hospital, Shanghai Jiaotong University Affiliated Shanghai General Hospital, Shanghai, China
| | - Cheng Li
- Department of Anesthesiology and Perioperative Medicine, Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Clinical Research Center for Anesthesiology and Perioperative Medicine, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, China
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3
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Ni W, Yi X, Feng L, Shen Y, Jiao J, Cai Y, Fu D, Han Y, Jia J, Li W. Comparison of different weight-based scalars of remimazolam tosylate for anesthesia induction in obese patients: study protocol for a prospective, controlled trial. Trials 2023; 24:719. [PMID: 37950290 PMCID: PMC10638826 DOI: 10.1186/s13063-023-07739-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 10/19/2023] [Indexed: 11/12/2023] Open
Abstract
BACKGROUND The physiologic and anthropometric characteristics changes associated with obesity may result in the alternation of pharmacologic management. Remimazolam tosylate is a new type of ultra-short-acting benzodiazepine with stable context-sensitive half-time (CSHT) and no lipid accumulation after long-time infusion. Although remimazolam tosylate has potential advantages for the induction and maintenance of anesthesia in obese patients, the appropriate induction dosing scalars among obese patients are unknown. Therefore, we aim to compare the different weight-based scalars for dosing remimazolam tosylate of anesthesia induction among obese patients. METHODS/DESIGN The study will be performed as a prospective, single-center, double-blind, controlled clinical trial. The study design is a comparison of remimazolam tosylate requirements based on total body weight (TBW) or lean body weight (LBW) to reach a Modified Observer's Assessment of Alertness and Sedation (MOAA/S) score of 0 among obese subjects (BMI ≥ 35 kg/m2). Another twenty normal-weight subjects (18.5 kg/m2 ≤ BMI < 25 kg/m2) will be enrolled as a control group, whose induction dose is scaled based on TBW. The infusion rate of remimazolam tosylate during induction is 12 mg/kg/h in all groups. DISCUSSION Results of the present study will provide evidence of dose scalar of remimazolam tosylate to guide the clinical practice of anesthesia induction in obese patients. TRIAL REGISTRATION Chinese Clinical Trial Registry ChiCTR220005664. Registered on 9 February 2022, https://www.chictr.org.cn/showproj.aspx?proj=151150 .
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Affiliation(s)
- Wenwen Ni
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, No. 83 Fenyang Road, Xuhui District, Shanghai, 200031, China
| | - Xiuwen Yi
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, No. 83 Fenyang Road, Xuhui District, Shanghai, 200031, China
| | - Lili Feng
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, No. 83 Fenyang Road, Xuhui District, Shanghai, 200031, China
| | - Yilei Shen
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, No. 83 Fenyang Road, Xuhui District, Shanghai, 200031, China
| | - Jiali Jiao
- Institute of Translational Medicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, China
| | - Yirong Cai
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, No. 83 Fenyang Road, Xuhui District, Shanghai, 200031, China
| | - Danyun Fu
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, No. 83 Fenyang Road, Xuhui District, Shanghai, 200031, China
| | - Yuan Han
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, No. 83 Fenyang Road, Xuhui District, Shanghai, 200031, China.
| | - Ji'e Jia
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, No. 83 Fenyang Road, Xuhui District, Shanghai, 200031, China.
| | - Wenxian Li
- Department of Anesthesiology, Eye & ENT Hospital, Fudan University, No. 83 Fenyang Road, Xuhui District, Shanghai, 200031, China.
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Vaughns JD, McCullough-Roach R, Williams EF, Nadler EP. Child and Adolescent Bariatric Surgery in an Urban Tertiary Center: Special Anesthetic Considerations for Obesity. J Clin Pharmacol 2023; 63 Suppl 2:S103-S109. [PMID: 37942911 DOI: 10.1002/jcph.2372] [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: 08/03/2023] [Accepted: 10/13/2023] [Indexed: 11/10/2023]
Abstract
Children and adolescents with obesity who present for weight loss surgery are a unique subset of patients. A thorough understanding of the perioperative needs of these individuals is essential to avoid deleterious complications. This review illustrates the necessity for specialized care, including the continued need of specified drug dosing and a systematic approach in the management of the pediatric bariatric patient.
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Affiliation(s)
- Janelle D Vaughns
- Divisions of Anesthesiology, Pain and Perioperative Medicine, and Clinical Pharmacology, Children's National Hospital, The George Washington University, Washington, DC, USA
| | | | - Elaine F Williams
- Division of Clinical Pharmacology, Children's National Hospital, The George Washington University, Washington, DC, USA
| | - Evan P Nadler
- Division of Surgery, Children's National Hospital, The George Washington University, Washington, DC, USA
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5
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Postaci A, Ozcan NN, Aydin-Guzey N, Ersoy UC. The effect of rocuronium priming dose based on actual versus corrected body weight in modified rapid sequence intubation. Niger J Clin Pract 2023; 26:742-748. [PMID: 37470647 DOI: 10.4103/njcp.njcp_610_22] [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] [Indexed: 07/21/2023]
Abstract
Background Rapid sequence intubation (RSI) is a technique that allows patients to be quickly intubated and have the airway secured. Aims The purpose of this study was to investigate the effect of rocuronium priming and intubation dose calculated according to actual body weight (ABW) or corrected body weight (CBW) on the neuromuscular block and intubation quality in rapid sequence induction and intubation (RSII). Patients and Methods This prospective randomized, double-blind study was conducted on a total of 60 patients randomized into two groups using the closed-envelope method between January 2021 and December 2021, with 30 individuals in each group. In group 1, CBW was used with the formula to calculate the neuromuscular blocking drug (NMBD) dose. The ABW of patients was used to calculate the NMBD dose in group 2. Results The data of 50 female patients who underwent group 1 (CBW, n = 25) and group 2 (ABW, n = 25) were analyzed. Age, weight, height, body mass index (BMI), quality of laryngoscopy, post-priming side effects, mean arterial pressure (MAP), and heart rate (HR) values did not differ across the groups. When train-of-four (TOF) values, priming and intubation dose, and laryngoscopy time were compared, a statistically significant difference was found between the two groups of TOF count (TOF C) 1 (the duration of action). Conclusion This study suggests that the application of rocuronium priming and intubation dose according to CBW in RSII, especially during the pandemic, provided similar intubation conditions as the application according to ABW, while its shorter duration of action shows that it can be preferred, especially in short-term surgical cases.
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Affiliation(s)
- A Postaci
- Department of Anesthesiology and Reanimation, Ankara City Hospital, Health Application and Research Center, University of Health Sciences, Turkey
| | - N N Ozcan
- Department of Anesthesiology and Reanimation, Ankara City Hospital, Health Application and Research Center, University of Health Sciences, Turkey
| | - N Aydin-Guzey
- Department of Anesthesiology and Reanimation, Ankara City Hospital, Health Application and Research Center, University of Health Sciences, Turkey
| | - U C Ersoy
- Department of Anesthesiology and Reanimation, Ankara City Hospital, Health Application and Research Center, University of Health Sciences, Turkey
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Morse JD, Cortinez LI, Anderson BJ. Considerations for Intravenous Anesthesia Dose in Obese Children: Understanding PKPD. J Clin Med 2023; 12:jcm12041642. [PMID: 36836174 PMCID: PMC9960599 DOI: 10.3390/jcm12041642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/09/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
The intravenous induction or loading dose in children is commonly prescribed per kilogram. That dose recognizes the linear relationship between volume of distribution and total body weight. Total body weight comprises both fat and fat-free mass. Fat mass influences the volume of distribution and the use of total body weight fails to recognize the impact of fat mass on pharmacokinetics in children. Size metrics alternative to total body mass (e.g., fat-free and normal fat mass, ideal body weight and lean body weight) have been proposed to scale pharmacokinetic parameters (clearance, volume of distribution) for size. Clearance is the key parameter used to calculate infusion rates or maintenance dosing at steady state. Dosing schedules recognize the curvilinear relationship, described using allometric theory, between clearance and size. Fat mass also has an indirect influence on clearance through both metabolic and renal function that is independent of its effects due to increased body mass. Fat-free mass, lean body mass and ideal body mass are not drug specific and fail to recognize the variable impact of fat mass contributing to body composition in children, both lean and obese. Normal fat mass, used in conjunction with allometry, may prove a useful size metric but computation by clinicians for the individual child is not facile. Dosing is further complicated by the need for multicompartment models to describe intravenous drug pharmacokinetics and the concentration effect relationship, both beneficial and adverse, is often poorly understood. Obesity is also associated with other morbidity that may also influence pharmacokinetics. Dose is best determined using pharmacokinetic-pharmacodynamic (PKPD) models that account for these varied factors. These models, along with covariates (age, weight, body composition), can be incorporated into programmable target-controlled infusion pumps. The use of target-controlled infusion pumps, assuming practitioners have a sound understanding of the PKPD within programs, provide the best available guide to intravenous dose in obese children.
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Affiliation(s)
- James Denzil Morse
- Department of Anaesthesiology, University of Auckland, Park Road, Auckland 1023, New Zealand
| | - Luis Ignacio Cortinez
- División Anestesiología, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Brian Joseph Anderson
- Department of Anaesthesiology, University of Auckland, Park Road, Auckland 1023, New Zealand
- Department of Anaesthesia, Auckland Children’s Hospital, Park Road, Private Bag 92024, Auckland 1023, New Zealand
- Correspondence: ; Tel.:+64-9-3074903; Fax: +64-9-3078986
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7
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Nottelmann K, Menzen A, Röding T, Grünewald M, Kehl F. [Anesthesia in obesity surgery : Recommendations from the practice for the practice]. DIE ANAESTHESIOLOGIE 2023; 72:89-96. [PMID: 36622398 DOI: 10.1007/s00101-022-01240-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 10/24/2022] [Accepted: 11/15/2022] [Indexed: 01/10/2023]
Abstract
BACKGROUND Due to unsuccessful conservative treatment concepts and the steady increase in the prevalence of obesity, obesity surgery has gained importance worldwide. In Germany alone, around 20,000 surgical operations for obesity are performed each year. In addition to patient history and physical examination a close interdisciplinary cooperation taking into account the currently applicable standards and guidelines of the professional societies are prerequisites for best patient care and to evaluate and mitigate patient risks. AIM The aim of this work was to compile and consent experiences of experts in the implementation of applicable standards and guidelines for anesthesia in obesity surgery for daily clinical practice. METHOD Anesthesiologists from five bariatric centers, comprising about 10% of the obesity surgery caseload of Germany per year, have collated their clinical experiences to agree on a consensus for procedures. The procedures for preoperative patient evaluation, drug premedication and PONV prophylaxis, induction of anesthesia and drug dosage recommendations for anesthetics were consented based on the authors' practice. RESULTS AND CONCLUSION The procedures described herein were developed as part of a joint work process. The authors describe a practically applicable approach to the anesthesiological care of obesity surgery patients and recommend using a pragmatic formula for dosing the medication calculated on the basis of total body weight (TBW).
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Affiliation(s)
- Klaus Nottelmann
- Anästhesiologie, Intensiv- und Schmerzmedizin, Schön Klinik Hamburg Eilbek, Hamburg, Deutschland.
| | - Angelika Menzen
- Anästhesiologie und Intensivmedizin, St. Marien-Hospital Friesoythe, Friesoythe, Deutschland
| | - Thomas Röding
- Adipositaszentrum der Klinik Ernst von Bergmann, Bad Belzig und Adipositaszentrum im Klinikum Ernst von Bergmann, Potsdam, Deutschland
| | - Matthias Grünewald
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Kiel, Deutschland
| | - Franz Kehl
- Klinik für Anästhesie und Intensivmedizin, Städtisches Klinikum Karlsruhe gGmbH, Karlsruhe, Deutschland
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Pedersen K, Kruhøffer LL, Lykkesfeldt J, Kousholt BS. Comparison of the neuromuscular effects of two infusion rates of rocuronium in anesthetized pigs. Acta Vet Scand 2022; 64:38. [PMID: 36522634 PMCID: PMC9753331 DOI: 10.1186/s13028-022-00658-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Neuromuscular blocking agents are frequently administered to pigs used for research. In humans, administration of the drugs is not without risk and may result in accidental awareness under general anaesthesia and postoperative residual neuromuscular blockade that can lead to serious respiratory complications. Despite the extensive administration, the pharmacodynamics of neuromuscular blocking agents are not thoroughly studied in pigs. Therefore, this study investigates the neuromuscular response of two infusion rates of rocuronium, a commonly used non-depolarizing neuromuscular blocking agent. A group of 14 female Danish Landrace-Yorkshire-Duroc pigs used for supervised surgical training, weighing 40.3 ± 2.1 kg (mean ± SD), were included in the study. They received a loading dose of 0.85 mg/kg rocuronium intravenously followed by infusion of either 2.5 mg/kg/hour (L, low dose) or 5 mg/kg/hour (H, high dose) rocuronium for 30 min. Neuromuscular monitoring was performed with acceleromyography using train-of-four (TOF) stimulation. Onset time, time to reappearance of T1, T4, TOF ratio 90% and 100% were recorded. RESULTS All pigs in group H experienced loss of T1 throughout rocuronium infusion, whereas six out of seven pigs in group L had reappearance of T1 during rocuronium infusion, with additional reappearance of T4 in three of these pigs. The time to recovery of TOF ratio 90% was 14.0 ± 5.4 (L) and 21.7 ± 6.1 (H) minutes and recovery to TOF ratio 100% was 18.7 ± 6.5 (L) and 27.9 ± 9.2 min (H) (mean ± SD). Substantial inter-animal variation in neuromuscular recovery time was observed. CONCLUSION The large inter-animal variation in pharmacodynamic profiles emphasizes that individual neuromuscular monitoring and titration to effect should be used routinely in research protocols that include rocuronium. In addition to other important measures, these actions are key in order to avoid overdosing and limit the risk of residual neuromuscular blockade.
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Affiliation(s)
- Kamilla Pedersen
- grid.5254.60000 0001 0674 042XSection of Experimental Animal Models, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Ridebanevej 9, 1870 Frederiksberg C, Denmark
| | - Linda Loisa Kruhøffer
- grid.7048.b0000 0001 1956 2722AUGUST Centre, Department of Clinical Medicine, Faculty of Health, Aarhus University, Palle Juul Jensens Blvd. 99 DK- 8200 Aarhus N and Nørrebrogade 44, Building 2B, DK-8000 Aarhus C, Denmark
| | - Jens Lykkesfeldt
- grid.5254.60000 0001 0674 042XSection of Experimental Animal Models, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Ridebanevej 9, 1870 Frederiksberg C, Denmark
| | - Birgitte Saima Kousholt
- grid.7048.b0000 0001 1956 2722AUGUST Centre, Department of Clinical Medicine, Faculty of Health, Aarhus University, Palle Juul Jensens Blvd. 99 DK- 8200 Aarhus N and Nørrebrogade 44, Building 2B, DK-8000 Aarhus C, Denmark
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9
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Ross J, Ramsay DP, Sutton-Smith LJ, Willink RD, Moore JE. Residual neuromuscular blockade in the ICU: a prospective observational study and national survey. Anaesthesia 2022; 77:991-998. [PMID: 35837762 DOI: 10.1111/anae.15789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/15/2022] [Indexed: 12/23/2022]
Abstract
Residual neuromuscular blockade is associated with significant morbidity. It has been widely studied in anaesthesia; however, the incidence of residual neuromuscular blockade in patients managed in the ICU is unknown. We conducted a prospective observational study in a tertiary ICU to determine the incidence of residual neuromuscular blockade using quantitative accelerographic monitoring. We tested for residual neuromuscular blockade (defined as a train-of-four ratio < 0.9) before cessation of sedation in anticipation of tracheal extubation. We also surveyed 16 other ICUs in New Zealand to determine their use of neuromuscular monitoring. A total of 191 patients were included in the final analysis. The incidence (95%CI) of residual neuromuscular blockade was 43% (36-50%), with a similar incidence observed in non-postoperative and postoperative patients. There was a lower risk of residual neuromuscular blockade with atracurium than rocuronium (risk ratio (95%CI) of 0.39 (0.12-0.78)) and a higher risk with pancuronium than rocuronium (1.59 (1.06-2.49)). Our survey shows that, in New Zealand ICUs, monitoring of neuromuscular function is rarely carried out before tracheal extubation. When neuromuscular monitoring is undertaken, it is based on individual clinician suspicion and performed using qualitative measurements. No ICU reported using a quantitative monitor or a clinical guideline. The results demonstrate a high incidence of residual neuromuscular blockade in our ICU patients and identify the type of neuromuscular blocking drug as a possible risk factor. Monitoring neuromuscular function before tracheal extubation is not currently the standard of care in New Zealand ICUs. These data suggest that residual neuromuscular blockade may be an under-recognised problem in ICU practice.
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Affiliation(s)
- J Ross
- Department of Anaesthesia, Wellington Regional Hospital, Wellington, New Zealand
| | - D P Ramsay
- Department of Anaesthesia, Wellington Regional Hospital, Wellington, New Zealand
| | - L J Sutton-Smith
- Intensive Care Services, Wellington Regional Hospital, Wellington, New Zealand
| | - R D Willink
- Dean's Department, University of Otago, Wellington, New Zealand
| | - J E Moore
- Intensive Care, Medical Research Institute of New Zealand, Wellington, New Zealand
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10
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Gomez AG, Auckburally A, Flaherty D. Extremely prolonged neuromuscular blockade following a single dose of rocuronium in a dog. VETERINARY RECORD CASE REPORTS 2022. [DOI: 10.1002/vrc2.437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Morse JD, Cortinez LI, Anderson BJ. Pharmacokinetic Pharmacodynamic Modelling Contributions to Improve Paediatric Anaesthesia Practice. J Clin Med 2022; 11:jcm11113009. [PMID: 35683399 PMCID: PMC9181587 DOI: 10.3390/jcm11113009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 12/10/2022] Open
Abstract
The use of pharmacokinetic-pharmacodynamic models has improved anaesthesia practice in children through a better understanding of dose-concentration-response relationships, developmental pharmacokinetic changes, quantification of drug interactions and insights into how covariates (e.g., age, size, organ dysfunction, pharmacogenomics) impact drug prescription. Simulation using information from these models has enabled the prediction and learning of beneficial and adverse effects and decision-making around clinical scenarios. Covariate information, including the use of allometric size scaling, age and consideration of fat mass, has reduced population parameter variability. The target concentration approach has rationalised dose calculation. Paediatric pharmacokinetic-pharmacodynamic insights have led to better drug delivery systems for total intravenous anaesthesia and an expectation about drug offset when delivery is stopped. Understanding concentration-dependent adverse effects have tempered dose regimens. Quantification of drug interactions has improved the understanding of the effects of drug combinations. Repurposed drugs (e.g., antiviral drugs used for COVID-19) within the community can have important effects on drugs used in paediatric anaesthesia, and the use of simulation educates about these drug vagaries.
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Affiliation(s)
- James D. Morse
- Department of Anaesthesiology, University of Auckland, Park Road, Auckland 1023, New Zealand;
| | - Luis Ignacio Cortinez
- División Anestesiología, Escuela de Medicina, Pontificia Universidad Católica de Chile, San Diego de Chile 8331150, Chile;
| | - Brian J. Anderson
- Department of Anaesthesiology, University of Auckland, Park Road, Auckland 1023, New Zealand;
- Correspondence: ; Tel.: +64-9-3074903; Fax: +64-9-3078986
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12
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Okada Y, Nakasone H, Konuma T, Uchida N, Tanaka M, Sugio Y, Aotsuka N, Nishijima A, Katsuoka Y, Ara T, Ota S, Onizuka M, Sawa M, Kimura T, Fukuda T, Atsuta Y, Kanda J, Kimura F. Ideal body weight is useful for predicting neutrophil engraftment and platelet recovery for overweight and obese recipients in single-unit cord blood transplantation. Transplant Cell Ther 2022; 28:504.e1-504.e7. [PMID: 35577325 DOI: 10.1016/j.jtct.2022.05.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/19/2022] [Accepted: 05/07/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Since cord blood (CB) units are usually selected based on the cell dose /kg, overweight (25 kg/m2 ≤ body mass index (BMI) < 30 kg/m2) and obese (30 kg/m2 ≤ BMI) recipients tend to have difficulty in getting appropriate CB units. In general, actual body weight (ABW) is used for CB unit selection. However, ideal body weight (IBW) has been reported to be more closely correlated with successful engraftment after autologous, allogeneic bone marrow, and peripheral blood stem cell transplantation than ABW. OBJECTIVES We conducted this analysis to clarify the threshold of CD34+ cell doses based on ideal body weight (CD34IBW) and to compare the outcomes among the groups stratified by the threshold according to actual body weight (CD34ABW) and CD34IBW for overweight and obese recipients in cord blood transplantation (CBT). STUDY DESIGN We retrospectively analyzed 650 overweight and obese recipients who received single-unit CBT. To focus on the recipients who received a low CD34+ cell dose /kg, those who received 1.5×105 CD34+ cells /ABW or more were excluded. Using a cut-off of 0.8×105 CD34+ cells/kg, we compared the outcomes in 3 groups with low CD34ABW and low CD34IBW (CD34Low/Low), low CD34ABW but high CD34IBW (CD34Low/High), and high CD34ABW and high CD34IBW (CD34High/High). RESULTS Hematopoietic recoveries were significantly delayed in the CD34Low/Low group compared with those in the CD34Low/High group (hazard ratio (HR) 0.67 for neutrophil, P < 0.001; HR 0.72 for platelet, P = 0.014), while those were comparable in the CD34Low/High and CD34High/High groups (HR 1.22 for neutrophil, P = 0.16; HR 1.29 for platelet, P = 0.088). Moreover, the CD34Low/High group demonstrated longer overall survival than the CD34Low/Low group (HR 1.48, P = 0.011) and comparable survival to the CD34High/High group (HR 0.93, P = 0.68). CONCLUSIONS This finding may address the lack of availability of CB units for some overweight and obese recipients for whom suitable donors are unavailable. Further investigations are warranted to evaluate the appropriateness of ABW and IBW.
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Affiliation(s)
- Yosuke Okada
- Department of Hematology, National Defense Medical College Hospital, Saitama, Japan; Department of Hematology, Jichi Medical University Saitama Medical Center, Saitama, Japan.
| | - Hideki Nakasone
- Department of Hematology, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | - Takaaki Konuma
- Department of Hematology/Oncology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Naoyuki Uchida
- Department of Hematology, Federation of National Public Service Personnel Mutual Aid Associations TORANOMON HOSPITAL, Tokyo, Japan
| | - Masatsugu Tanaka
- Department of Hematology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Yasuhiro Sugio
- Department of Hematology, Kitakyushu City Hospital Organization, Kitakyushu Municipal Medical Center, Fukuoka, Japan
| | - Nobuyuki Aotsuka
- Division of Hematology-Oncology, Japanese Red Cross Society Narita Hospital, Chiba, Japan
| | - Akihiko Nishijima
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - Yuna Katsuoka
- Department of Hematology, National Hospital Organization Sendai Medical Center, Miyagi, Japan
| | - Takahide Ara
- Department of Hematology, Hokkaido University Hospital, Hokkaido, Japan
| | - Shuichi Ota
- Department of Hematology, Sapporo Hokuyu Hospital, Hokkaido, Japan
| | - Makoto Onizuka
- Department of Hematology/Oncology, Tokai University School of Medicine, Kanagawa, Japan
| | - Masashi Sawa
- Department of Hematology and Oncology, Anjo Kosei Hospital, Aichi, Japan
| | - Takafumi Kimura
- Preparation Department, Japanese Red Cross Kinki Block Blood Center, Osaka, Japan
| | - Takahiro Fukuda
- Hematopoietic Stem Cell Transplantation Division, National Cancer Center Hospital, Tokyo, Japan
| | - Yoshiko Atsuta
- Japanese Data Center for Hematopoietic Cell Transplantation; Department of Registry Science for Transplant and Cellular Therapy, Aichi Medical University School of Medicine, Aichi, Japan
| | - Junya Kanda
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Fumihiko Kimura
- Department of Hematology, National Defense Medical College Hospital, Saitama, Japan
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Influence of the amount of skeletal muscle mass on rocuronium-induced neuromuscular block. Anaesth Crit Care Pain Med 2022; 41:101086. [PMID: 35490864 DOI: 10.1016/j.accpm.2022.101086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 01/19/2022] [Accepted: 01/22/2022] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To evaluate the effects of skeletal muscle mass on the rocuronium-induced neuromuscular block. DESIGN A prospective, double-blinded, observational study SETTING: A tertiary care university hospital POPULATION: One hundred one patients aged 18-65 years who were scheduled to undergo major surgery lasting more than 1 h under general anaesthesia. METHODS All participants underwent body composition analysis before anaesthesia and were allocated into two groups; the muscular and non-muscular group, according to skeletal muscle mass. During anaesthesia induction, rocuronium 1.0 mg kg-1 of total body weight was injected followed by neuromuscular monitoring using train-of-four stimulation every 15 s. MAIN OUTCOME MEASURES The onset time of rocuronium included the elapsed time from the rocuronium injection until 95% depression of first twitch (T1) and the time to no response to TOF stimulation. The duration was evaluated as the elapsed time from the rocuronium injection to 25% recovery of the final T1 (TDUR25), and the time to the reappearance of T1 (TTOF1) and T4 (TTOF4). These pharmacologic data were compared between two groups. RESULTS There was no significant difference in the onset time of rocuronium between the two groups. However, TDUR25 (min) was significantly shorter in the muscular group than in the non-muscular group (p = 0.035 and p = 0.014 in males and females, respectively). TTOF1 and TTOF4 were also shorter in the muscular group than in the non-muscular group. CONCLUSIONS Total body weight-based dosing of rocuronium might prolong the neuromuscular relaxation effect in patients with a small amount of skeletal muscle.
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Demiroz D, Colak YZ, Iclek SK, Erdogan MA, Yagci NA, Durmus M, Gulhas N. Does Rocuroinum Dose Adjusted Due to Lean Body Weight Provide Adequate Intubation Conditions?: A Prospective Observational Study. Int J Clin Pract 2022; 2022:6840960. [PMID: 36263238 PMCID: PMC9556254 DOI: 10.1155/2022/6840960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 09/15/2022] [Indexed: 12/04/2022] Open
Abstract
METHODS This is a prospective, observational study. Patients between the ages of 18 and 65 with BMI of 18.5-34.9, who are expected to be under general anesthesia for less than 6 hours, were divided into 3 groups according to their BMI (Group 1 BMI = 18.5-24.9, Group 2 BMI = 25-29.9, Group 3 BMI = 30-34.9). These groups were randomly divided into 2 subgroups: Groups LBW; 1 LBW, 2 LBW, and 3 LBW were given rocuronium intubation dosages based on their LBW while control groups; 1K, 2K, and 3K were given 0.6 mg/kg rocuronium according to their total body weight. The data on the duration of action of rocuronium and its effects on the endotracheal intubation conditions were evaluated. RESULTS In Group 1, T1 time was found to be significantly longer (p=0.001). Intubation score and the use of additional rocuronium dose were found to be significantly higher in Group 1 LBW than in Group 1K (p=0.001). In Group 1, an additional rocuronium dose was needed to achieve optimal intubation conditions for subgroup 1 LBW. Rocuronium duration of action was found to be significantly longer in control groups 2 and 3, that received TBW-based dosage. CONCLUSION In adult patients with a BMI of 18.5 and 24.9 BMI, we report optimal intubation conditions with the LBW-adjusted rocuronium dosage. This trial is registered with NCT05476952.
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Affiliation(s)
- Duygu Demiroz
- Inonu University, School of Medicine, Department of Anesthesiology and Reanimation, Malatya, Turkey
| | - Yusuf Ziya Colak
- Inonu University, School of Medicine, Department of Anesthesiology and Reanimation, Malatya, Turkey
| | - Sumeyye Koc Iclek
- Inonu University, School of Medicine, Department of Anesthesiology and Reanimation, Malatya, Turkey
| | - Mehmet Ali Erdogan
- Inonu University, School of Medicine, Department of Anesthesiology and Reanimation, Malatya, Turkey
| | - Neslihan Altunkaya Yagci
- Inonu University, School of Medicine, Department of Anesthesiology and Reanimation, Malatya, Turkey
| | - Mahmut Durmus
- Bezmialem Foundation University Medical Faculty Hospital, Department of Anesthesiology and Reanimation, Istanbul, Turkey
| | - Nurcın Gulhas
- Inonu University, School of Medicine, Department of Anesthesiology and Reanimation, Malatya, Turkey
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15
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Takahoko K, Iwasaki H, Inaba Y, Matsuno T, Matsuno R, Luthe SK, Kanda H, Kawasaki Y. The Association Between Intraoperative Objective Neuromuscular Monitoring and Rocuronium Consumption During Laparoscopic Abdominal Surgery: A Single-Center Retrospective Analysis. Cureus 2021; 13:e19245. [PMID: 34900450 PMCID: PMC8647774 DOI: 10.7759/cureus.19245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/04/2021] [Indexed: 11/05/2022] Open
Abstract
Background Rocuronium consumption with or without intraoperative objective neuromuscular monitoring in clinical settings of unrestricted use of sugammadex and neuromuscular monitoring has not been reported earlier. The study aimed to investigate the association between the use of intraoperative objective neuromuscular monitoring and rocuronium consumption in patients undergoing laparoscopic abdominal surgery. Methods Data were collected by reviewing electronic medical records of patients who received laparoscopic abdominal surgery under general anesthesia with rocuronium and reversal with sugammadex at a university teaching hospital between May 2017 and April 2018. A multivariate linear regression model was developed to compare the amount of rocuronium consumption (mg) per weight (kg) per hour (mg/kg/h) between the group in which intraoperative objective neuromuscular monitoring was used (NMM+ group) and the group in which intraoperative neuromuscular monitoring was not used (NMM− group). Additionally, we performed an interaction test. Results A total of 429 patients were evaluated, with 371 patients (86%) included in the NMM+ group and 58 patients (14%) in the NMM− group. Log-transformed rocuronium consumption between the NMM+ group and NMM− group was not significantly different (back-transformed β coefficients [95% CI]: 1.080 [0.951-1.226]; P = 0.23). Male sex and body mass index (BMI) were independent factors associated with 15% (0.853 [0.788-0.924]; P < 0.001) and 3% (for every 1 kg/m2 increase in BMI) (0.971 [0.963-0.979]; P < 0.001) decrease in intraoperative rocuronium consumption, respectively. A significant interaction was detected only between the use of neuromuscular monitoring and age ≥65 years (β: 0.803 [0.662-0.974]; P = 0.026). Conclusions Although the use of intraoperative objective neuromuscular monitoring was not an individual factor influencing intraoperative rocuronium consumption, this retrospective study demonstrated that the use of intraoperative neuromuscular monitoring reduced rocuronium consumption for approximately 20% of elderly patients (age ≥65 years) undergoing laparoscopic abdominal surgery.
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Affiliation(s)
- Kenichi Takahoko
- Anesthesiology and Critical Care Medicine, Asahikawa Medical University, Asahikawa, JPN
| | - Hajime Iwasaki
- Anesthesiology and Critical Care Medicine, Asahikawa Medical University, Asahikawa, JPN
| | - Yosuke Inaba
- Clinical Biostatistics, Chiba University Hospital, Chiba, JPN
| | - Takashi Matsuno
- Anesthesiology and Critical Care Medicine, Asahikawa Medical University, Asahikawa, JPN
| | - Risako Matsuno
- Anesthesiology and Critical Care Medicine, Asahikawa Medical University, Asahikawa, JPN
| | - Sarah K Luthe
- Anesthesia, Indiana University School of Medicine, Indianapolis, USA
| | - Hirotsugu Kanda
- Anesthesiology and Critical Care Medicine, Asahikawa Medical University, Asahikawa, JPN
| | - Yohei Kawasaki
- Nursing, Japanese Red Cross College of Nursing, Tokyo, JPN
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16
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Hile GB, Healy KJ, Almassalkhi LR. Rocuronium Reversal in the Emergency Department: Retrospective Evaluation of Hemodynamic Instability Following Administration of Sugammadex Versus Neostigmine With Glycopyrrolate. J Pharm Pract 2021; 36:336-341. [PMID: 34601981 DOI: 10.1177/08971900211048747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Rocuronium is an intermediate-acting non-depolarizing neuromuscular blocking agent frequently used in the emergency department for rapid sequence intubation. The prolonged effects of rocuronium may prevent the ability to conduct a meaningful neurological examination, thereby delaying appropriate diagnosis and treatment. Sugammadex and neostigmine are pharmacologic agents commonly used to reverse rocuronium. The safety of sugammadex versus neostigmine with glycopyrrolate for the reversal of rocuronium in the emergency department has not been well described. OBJECTIVE Evaluate the occurrence of hemodynamic instability post-administration of sugammadex versus neostigmine with glycopyrrolate in the emergency department for the reversal of rocuronium. METHODS A retrospective cohort study conducted among adult patients that received sugammadex or neostigmine with glycopyrrolate in the emergency department for the reversal of rocuronium. The primary outcome was occurrence of hemodynamic instability that required escalation of treatment. Secondary outcomes included occurrence of hypotensive, bradycardic, or cardiac arrest events. RESULTS A total of 37 patients met inclusion criteria (n = 10, sugammadex; n = 27, neostigmine). There was no difference between the two groups in regard to hemodynamic instability that required escalation of treatment within 30 minutes after receiving either sugammadex or neostigmine with glycopyrrolate (P = .557). CONCLUSION There was no difference between the two groups in regard to occurrence of hemodynamic instability that required escalation of treatment. Given the small sample size, future studies are warranted to further delineate the safety of sugammadex and neostigmine with glycopyrrolate for the reversal of rocuronium in the emergency department.
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Affiliation(s)
- Garrett B Hile
- Department of Pharmacy, 12253University of Kentucky HealthCare, Lexington, KY, USA
| | - Karl J Healy
- Department of Pharmacy, 12280Wake Forest Baptist Medical Center, Winston-Salem, NC, USA
| | - Lars R Almassalkhi
- Department of Pharmacy, 12280Wake Forest Baptist Medical Center, Winston-Salem, NC, USA
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17
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Erstad BL, Barletta JF. Dosing of neuromuscular blocking agents in patients with obesity: A narrative review. Anaesth Intensive Care 2021; 49:98-104. [PMID: 33906465 DOI: 10.1177/0310057x20968573] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
There is no consensus on which weight clinicians should use for weight-based dosing of neuromuscular blocking agents (NMBAs), as exemplified by differing or absent recommendations in clinical practice guidelines. The purpose of this paper is to review studies that evaluated various size descriptors for weight-based dosing of succinylcholine and non-depolarising NMBAs, and to provide recommendations for the descriptors of choice for the weight-based dosing of these agents in patients with obesity. All of the studies conducted to date involving depolarising and non-depolarising NMBAs in patients with obesity have assessed single doses or short-term infusions conducted in perioperative settings. Recognising that any final dosing regimen must take into account patient-specific considerations, the available evidence suggests that actual body weight is the size descriptor of choice for weight-based dosing of succinylcholine and that ideal body weight, or an adjusted (or lean) body weight, is the size descriptor of choice for weight-based dosing of non-depolarising NMBAs.
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Affiliation(s)
- Brian L Erstad
- Department of Pharmacy Practice and Science, University of Arizona College of Pharmacy, Tucson, AZ, USA
| | - Jeffrey F Barletta
- Department of Pharmacy Practice, College of Pharmacy, Midwestern University, Glendale, AZ, USA
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18
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Dosage adjustment in obese children, even for common drugs, is largely unclear and a treat-to-effect approach may work best. DRUGS & THERAPY PERSPECTIVES 2020. [DOI: 10.1007/s40267-020-00734-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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19
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An G, Zhu H. The role of percent body fat determined by bioelectrical impedance analysis in the diagnosis of obesity and the calculation of fat-free mass: A prospective observational study. J Clin Anesth 2020; 67:109975. [PMID: 32653754 DOI: 10.1016/j.jclinane.2020.109975] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/26/2020] [Accepted: 07/03/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Guanghui An
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Hui Zhu
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
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20
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Cautionary findings for motor evoked potential monitoring in intracranial aneurysm surgery after a single administration of rocuronium to facilitate tracheal intubation. J Clin Monit Comput 2020; 35:903-911. [PMID: 32617848 DOI: 10.1007/s10877-020-00551-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 06/26/2020] [Indexed: 10/23/2022]
Abstract
Administration of rocuronium to facilitate intubation has traditionally been regarded as acceptable for intraoperative motor evoked potential (MEP) monitoring because of sufficiently rapid spontaneous neuromuscular blockade recovery. We hypothesized that residual neuromuscular blockade, in an amount that could hinder optimal neuromonitoring in patients undergoing intracranial aneurysm clipping, was still present at dural opening. We sought to identify how often this was occurring and to identify factors which may contribute to prolonged blockade. Records of 97 patients were retrospectively analyzed. Rocuronium was administered to facilitate intubation with no additional neuromuscular blockade given. Prolonged spontaneous recovery time to a train-of-four (TOF) ratio of 0.75 after rocuronium administration was defined as 120 min, which was approximately when dural opening and the setting of baseline MEPs were occurring. Logistic regression analysis was used to identify factors related to prolonged spontaneous recovery time. Prolonged spontaneous recovery time to a TOF ratio of 0.75 was observed in 44.3% of patients. Multivariable analysis showed that only the dosage of rocuronium based on ideal body weight had a positive correlation with prolonged spontaneous recovery time (P = 0.01). There was no significant association between dosage of rocuronium based on total body weight, age, sex, or body temperature and prolonged recovery time. This study demonstrates that the duration of relaxation for MEP monitoring purposes is well-beyond the routinely recognized clinical duration of rocuronium. Residual neuromuscular blockade could result in lower amplitude MEP signals and/or lead to higher required MEP stimulus intensities which can both compromise monitoring sensitivity.
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21
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Management of Neuromuscular Blockade in the Elderly and Morbidly Obese Patient: What Does the Data Show? CURRENT ANESTHESIOLOGY REPORTS 2020. [DOI: 10.1007/s40140-020-00375-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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How can I manage anaesthesia in obese patients? Anaesth Crit Care Pain Med 2020; 39:229-238. [DOI: 10.1016/j.accpm.2019.12.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 12/01/2019] [Accepted: 12/09/2019] [Indexed: 12/17/2022]
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23
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Soto R. Incidence and Risk Factors for Postoperative Residual Neuromuscular Blockade. CURRENT ANESTHESIOLOGY REPORTS 2020. [DOI: 10.1007/s40140-020-00386-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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24
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Wang X, Huang K, Yan H, Lan F, Yao D, Li Y, Xue J, Wang T. The median effective dose (ED50) of cis-Atracurium for laryngeal mask airway insertion during general Anaesthesia for patients undergoing urinary surgery. BMC Anesthesiol 2020; 20:68. [PMID: 32192431 PMCID: PMC7081559 DOI: 10.1186/s12871-020-00982-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 03/09/2020] [Indexed: 12/18/2022] Open
Abstract
Background In clinical practice, the laryngeal mask airway is an easy-to-use supraglottic airway device. However, the cis-atracurium dosage for laryngeal mask insertion has not been standardised. We aimed to determine the optimal dose of cis-atracurium using a sequential method for successful laryngeal mask insertion. Methods The cohort study protocol is registered at clinicaltrial.gov (NCT-03668262). Twenty-three patients undergoing elective urinary surgery were sequentially administered cis-atracurium doses as follows: 150, 100, 70, 50, 30, and 20 μg·kg− 1. The main outcome involved the determination of the response to laryngeal mask airway insertion: ≥16 points and < 16 points indicated “satisfactory” and “unsatisfactory” responses, respectively. The median effective dose was estimated using the mean of the seven crossovers from “satisfactory” and “unsatisfactory” responses. The primary outcome involved the determination of the median effective dose (ED50) of cis-atracurium for laryngeal mask airway insertion. Results The median effective dose of cis-atracurium was 26.5 μg·kg− 1 (95% CI 23.6–29.8) using the sequential method. Heart rate was decreased in the 50 μg·kg− 1 group compared to that in the 30 μg·kg− 1 group at timepoints T7, T8, and T10 (P = 0.0482, P = 0.0460, and P = 0.0236, respectively), but no difference was observed in the 20 μg·kg− 1 group. Systolic blood pressure was decreased in the 50 μg·kg− 1 group compared to that in the 20 μg·kg− 1 group at timepoints T2, T3, and T4 (P = 0.0159, P = 0.0233, and P = 0.0428, respectively). The train-of-four value was significantly lower in the 50 μg·kg− 1 group than in the 30 μg·kg− 1 group at timepoint T3 (P = 0.0326). Conclusions The ED50 of cis-atracurium was 26.5 μg·kg− 1 for laryngeal mask airway insertion. Trial registration Clinicaltrial.gov Registry, NCT03668262, Registered on 11 September 2018.
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Affiliation(s)
- Xiaohua Wang
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China. .,Institute of Geriatrics, Beijing, 100053, China. .,National Clinical Research Center for Geriatric Disorders, Beijing, 100053, China.
| | - Ke Huang
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.,Institute of Geriatrics, Beijing, 100053, China.,National Clinical Research Center for Geriatric Disorders, Beijing, 100053, China
| | - Hao Yan
- Department of Urinary surgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - Fei Lan
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.,Institute of Geriatrics, Beijing, 100053, China.,National Clinical Research Center for Geriatric Disorders, Beijing, 100053, China
| | - Dongxu Yao
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.,Institute of Geriatrics, Beijing, 100053, China.,National Clinical Research Center for Geriatric Disorders, Beijing, 100053, China
| | - Yanhong Li
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.,Institute of Geriatrics, Beijing, 100053, China.,National Clinical Research Center for Geriatric Disorders, Beijing, 100053, China
| | - Jixiu Xue
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.,Institute of Geriatrics, Beijing, 100053, China.,National Clinical Research Center for Geriatric Disorders, Beijing, 100053, China
| | - Tianlong Wang
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China. .,Institute of Geriatrics, Beijing, 100053, China. .,National Clinical Research Center for Geriatric Disorders, Beijing, 100053, China.
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Kim DH, Kim SM, Kim J, Jeong S. Sugammadex reversal of large subcutaneous injection of rocuronium in an obese patient. ACTA ACUST UNITED AC 2020. [DOI: 10.30579/mbse.2020.3.1.16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Dae-Hoon Kim
- Department of Anesthesiology and Pain Medicine, Chonnam National University Medical School and Hospital, Gwangju, Korea
| | - Sung Min Kim
- Department of Anesthesiology and Pain Medicine, Chonnam National University Medical School and Hospital, Gwangju, Korea
| | - Joungmin Kim
- Department of Anesthesiology and Pain Medicine, Chonnam National University Medical School and Hospital, Gwangju, Korea
| | - Seongtae Jeong
- Department of Anesthesiology and Pain Medicine, Chonnam National University Medical School and Hospital, Gwangju, Korea
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Zhang Y, Guo X, Tan G, Zhao M, Huang Y, Chen W, Shi X, Pei L, Xing B. Neuromuscular Blockade Correlates with Hormones and Body Composition in Acromegaly. Int J Endocrinol 2020; 2020:2912839. [PMID: 33414825 PMCID: PMC7752264 DOI: 10.1155/2020/2912839] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 10/17/2020] [Accepted: 10/25/2020] [Indexed: 12/17/2022] Open
Abstract
Tumor resection is the first-line therapy for acromegaly patients. In some cases, unsatisfactory intraoperative neuromuscular blockades (NMBs) lead to failed operations. The purpose of this study was to investigate and quantify the NMB status of acromegaly patients and explore the relationship between NMB status and hormone levels and body composition. Twenty patients with untreated acromegaly and seventeen patients with nonfunctioning pituitary adenomas as controls were enrolled in this study. NMB was assessed using the train-of-four (TOF) technique with TOF-Watch® SX. The onset time of NMB, deep neuromuscular blockade duration (DNMBD), and clinical neuromuscular blockade duration (CNMBD) were monitored. We found a significantly longer onset time (110.25 ± 54.90 vs. 75.00 ± 27.56, s, p=0.017), shorter DNMBD (21.99 ± 5.67 vs. 34.96 ± 11.04, min, p < 0.001), and shorter CNMBD (33.26 ± 8.09 vs. 46.21 ± 10.89, min, p < 0.001) in acromegaly patients compared with the controls. DNMBD and CNMBD decreased in patients with decreasing body fat percentage and increasing growth hormone (GH) level, insulin-like growth factor 1 (IGF-1) level, and GH and IGF-1 burden. The onset time increased with increasing IGF-1 level and GH and IGF-1 burden. Taken together, a unique NMB status was identified in acromegaly patients with the following characteristics: prolonged onset time and shortened DNMBD and CNMBD. Changes in the levels and burdens of GH and IGF-1 and body composition were linearly correlated with intraoperative NMB in acromegaly patients.
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Affiliation(s)
- Yu Zhang
- Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng, Beijing 100730, China
| | - Xiaopeng Guo
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng, Beijing 100730, China
- China Pituitary Disease Registry Center, China Pituitary Adenoma Specialist Council, No. 1 Shuaifuyuan, Dongcheng, Beijing 100730, China
| | - Gang Tan
- Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng, Beijing 100730, China
| | - Mengyun Zhao
- Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng, Beijing 100730, China
| | - Yuguang Huang
- Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng, Beijing 100730, China
| | - Wei Chen
- Department of Parenteral & Enteral Nutrition, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng, Beijing 100730, China
| | - Xiaodong Shi
- Department of Parenteral & Enteral Nutrition, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng, Beijing 100730, China
| | - Lijian Pei
- Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng, Beijing 100730, China
- Outcomes Research Consortium, 9500 Euclid Ave, Cleveland 44195, Ohio, USA
| | - Bing Xing
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Shuaifuyuan, Dongcheng, Beijing 100730, China
- China Pituitary Disease Registry Center, China Pituitary Adenoma Specialist Council, No. 1 Shuaifuyuan, Dongcheng, Beijing 100730, China
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Drug Dose Selection in Pediatric Obesity: Available Information for the Most Commonly Prescribed Drugs to Children. Paediatr Drugs 2019; 21:357-369. [PMID: 31432433 PMCID: PMC7681556 DOI: 10.1007/s40272-019-00352-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Obesity rates continue to rise in children, and little guidance exists regarding the need for adjustment away from total body weight-based doses for those prescribing drugs to this population of children. A majority of drugs prescribed to children with obesity result in either sub-therapeutic or supra-therapeutic concentrations, placing these children at risk for treatment failure and drug toxicities. In this review, we highlight available obesity-specific pharmacokinetic and dosing information for the most frequently prescribed drugs to children in the inpatient and outpatient clinical settings. We also comment on available dosing recommendations for drugs prescribed to treat common pediatric obesity-related comorbidities. This review highlights that there is no safe or proven 'rule of thumb,' for dosing drugs for children with obesity, and a striking lack of pharmacokinetic data to support the creation of dosing guidelines for children with obesity for the most commonly prescribed drugs. It is important that those prescribing for children with obesity are aware of these gaps in knowledge and of potential drug treatment failure or adverse events related to drug toxicity as a result of these knowledge gaps. Until more data are available, we recommend close monitoring of drug response and adverse events in children with obesity receiving commonly prescribed drugs.
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Duration of the action of rocuronium in patients with BMI of less than 25: An observational study. Eur J Anaesthesiol 2019; 35:863-866. [PMID: 29757926 DOI: 10.1097/eja.0000000000000823] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND The duration of rocuronium in patients with BMI more than 30 kg m is prolonged. Whether the reverse is true when BMI is less than 18.5 kg m is unclear. OBJECTIVE The objective of this study was to investigate whether a BMI less than 25 kg m affects the duration of rocuronium in doses adjusted for actual body weight. DESIGN A prospective, observational, single-centre study. SETTING The operating room of a teaching hospital from 1 June 2008 to 30 June 2015. PATIENTS Thirty patients with American Society of Anesthesiologists physical status I or II who were scheduled to undergo elective surgery (BMI < 25 kg m, aged 23 to 74 years) maintained by 0.7 minimum alveolar concentration sevoflurane and remifentanil. MAIN OUTCOME MEASURES Repetitive train-of-four stimulation was applied and contractions of the adductor pollicis muscle were recorded. Duration of the initial dose of rocuronium (D1) was defined as the time from injection of rocuronium 0.6 mg kg to return of first twitch height to 25% of the control. Duration of additional doses (D2) was the time from a supplement of 0.15 mg kg rocuronium to return of first twitch height to 25% of the control. The relationship between D1 or D2 and BMI was examined using linear regression analysis. RESULTS Linear regression analysis revealed a significant correlation between duration of initial dose and BMI (R = 0.246; P = 0.00531). A significant correlation between the duration of the additional dose and BMI was also found (R = 0.316; P = 0.00122). CONCLUSION The lower the BMI, the shorter the duration of rocuronium at initial and additional doses determined by the actual body weight in adult patients with a BMI less than 25 kg m. TRIAL REGISTRATION www.umin.ac.jp/ctr/index/htm with registry number UMIN 00009337 and UMIN 000015407.
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Choi YJ, Hee Kim Y, Bae GE, Yu JH, Yoon SZ, Kang HW, Lee KS, Kim JH, Lee YS. Relationship between the muscle relaxation effect and body muscle mass measured using bioelectrical impedance analysis: A nonrandomized controlled trial. J Int Med Res 2019; 47:1521-1532. [PMID: 30719949 PMCID: PMC6460603 DOI: 10.1177/0300060518822197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Objective The dose of neuromuscular blocking drugs is commonly based on body weight, but using muscle mass might be more effective. This study investigated the relationship between the effect of neuromuscular blocking drugs and muscle mass measured using bioelectrical impedance analysis. Methods Patients who were scheduled for elective surgery using a muscle relaxant were screened for inclusion in this study. Under intravenous anaesthesia, 12 mg or 9 mg of rocuronium was administered to males and females, respectively; and the maximal relaxation effect of T1 was measured using a TOF-Watch-SX® acceleromyograph. Results This study enrolled 40 patients; 20 males and 20 females. For both sexes, the maximal relaxation effect of T1 did not correlate with the body weight-based dose of neuromuscular blocking drugs (males, r2 = 0.12; females, r2 = 0.26). Instead, it correlated with the dose based on bioelectrical impedance analysis-measured muscle mass when injected with the same dose of rocuronium (males, r2 = 0.78, female, r2 = 0.82). Conclusions This study showed that the muscle relaxation effect of rocuronium was correlated with muscle mass and did not correlate with body weight when using the same dose. Therefore, a muscle mass-based dose of neuromuscular blocking drugs is recommended.
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Affiliation(s)
- Yoon-Ji Choi
- 1 Department of Anaesthesiology and Pain Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Yun Hee Kim
- 1 Department of Anaesthesiology and Pain Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Go Eun Bae
- 2 Maypure Clinic, Uijeongbu, Republic of Korea
| | - Joon Ho Yu
- 3 Department of Anaesthesiology and Pain Medicine, Korea University Anam Hospital, Seoul, Republic of Korea
| | - Seung Zhoo Yoon
- 3 Department of Anaesthesiology and Pain Medicine, Korea University Anam Hospital, Seoul, Republic of Korea
| | - Hee Won Kang
- 1 Department of Anaesthesiology and Pain Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Kuen Su Lee
- 1 Department of Anaesthesiology and Pain Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Jae-Hwan Kim
- 1 Department of Anaesthesiology and Pain Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Yoon-Sook Lee
- 1 Department of Anaesthesiology and Pain Medicine, Korea University Ansan Hospital, Ansan, Republic of Korea
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Bougouma CTHWP, Demeere JLRJ. Dosage of sugammadex according to the calculated lean body mass in obese female patients: time to reverse moderate neuromuscular blockade induced by rocuronium. SOUTHERN AFRICAN JOURNAL OF ANAESTHESIA AND ANALGESIA 2019. [DOI: 10.1080/22201181.2019.1571719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Cheik Tidiane Hafid Wind-Pouiré Bougouma
- Department of Anaesthesiology and Intensive Care, Blaise Compaore Hospital, Tingandogo, Burkina Faso
- Department of Anaesthesiology, Saint-Jean Hospital, Brussels, Belgium
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Hebbes C, Thompson J. Pharmacokinetics of anaesthetic drugs at extremes of body weight. BJA Educ 2018; 18:364-370. [PMID: 33456803 PMCID: PMC7808064 DOI: 10.1016/j.bjae.2018.09.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2018] [Indexed: 10/28/2022] Open
Affiliation(s)
- C.P. Hebbes
- University Hospitals of Leicester NHS Trust, Leicester, UK
- University of Leicester, Leicester, UK
| | - J.P. Thompson
- University Hospitals of Leicester NHS Trust, Leicester, UK
- University of Leicester, Leicester, UK
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Smack MA, Moore M, Hong C, Gravino D. Ultra-Rapid Reversal of Rocuronium-Induced Paralysis with Sugammadex in the Emergency Department. J Emerg Nurs 2018; 44:529-531. [PMID: 30236301 DOI: 10.1016/j.jen.2018.05.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Peri-operative Medication Dosing in Adult Obese Elective Surgical Patients: A Systematic Review of Clinical Studies. Clin Drug Investig 2018; 38:673-693. [DOI: 10.1007/s40261-018-0662-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Advances in pharmacokinetic modeling: target controlled infusions in the obese. Curr Opin Anaesthesiol 2018; 31:415-422. [PMID: 29794852 DOI: 10.1097/aco.0000000000000619] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
PURPOSE OF REVIEW The use of conventional pharmacokinetic parameters sets 'models' derived from nonobese patients has proven inadequate to administer intravenous anesthetics in the obese population and is commonly associated with higher than anticipated plasma propofol concentrations when used with target (plasma or effect site) controlled infusion pumps. In this review we will describe recent modeling strategies to characterize the disposition of intravenous anesthetics in the obese patient and will show clinically relevant aspects of new model's performance in the obese population. RECENT FINDINGS Because clearance of a drug increases in a nonlinear manner with weight, nonlinear relationships better scale infusion rates between lean and obese individuals. Allometric concepts have been successfully used to describe size-related nonlinear changes in clearances. Other nonlinear scaling options include the use of descriptors such as body surface area, lean body weight, fat-free mass, and normal fat mass. Newer pharmacokinetic models, determined from obese patient data, have been developed for propofol and remifentanil using allometric concepts and comprehensive size descriptors. SUMMARY Pharmacokinetic models to perform target-controlled infusion in the obese population should incorporate descriptors that reflect with greater precision the influence of body composition in volumes and clearances of each drug. It is our hope that commercially available pumps will soon incorporate these new models to improve the performance of this technique in the obese population.
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Abstract
A growing proportion of patients undergoing surgical procedures are obese, providing anesthesiologists with numerous challenges for patient management. The current pooled analysis evaluated recovery times following sugammadex reversal of neuromuscular blockade by body mass index (BMI) in general, and in particular, in patients with BMIs ≥30 kg/m (defined as obese) and <30 kg/m (defined as non-obese). Data were pooled from 27 trials evaluating recommended sugammadex doses for reversal of moderate [reappearance of the second twitch of the train-of-four (TOF); sugammadex 2 mg/kg] or deep (1-2 post-tetanic counts or 15 minutes after rocuronium; sugammadex 4 mg/kg) rocuronium- or vecuronium-induced neuromuscular blockade. All doses of sugammadex were administered based on actual body weight. The recovery time from sugammadex administration to a TOF ratio ≥0.9 was the primary efficacy variable in all individual studies and in the pooled analysis. This analysis comprised a total of 1418 adult patients treated with sugammadex; 267 (18.8%) of these patients had a BMI ≥30 kg/m. The average time to recovery of the TOF ratio to 0.9 was 1.9 minutes for rocuronium-induced blockade and 3.0 minutes for vecuronium-induced blockade. No clinically relevant correlation was observed between BMI and recovery time. The recommended sugammadex doses based on actual body weight provide rapid recovery from neuromuscular blockade in both obese and non-obese patients; no dose adjustments are required in the obese patient.
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Park WY, Choi JC, Yun HJ, Jeon YG, Park G, Choi JB. Optimal dose of combined rocuronium and cisatracurium during minor surgery: A randomized trial. Medicine (Baltimore) 2018; 97:e9779. [PMID: 29517695 PMCID: PMC5882426 DOI: 10.1097/md.0000000000009779] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 12/14/2017] [Accepted: 01/11/2018] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Combined rocuronium and cisatracurium have synergistic effects. We investigated whether reduced doses are effective during coadministration, by monitoring neuromuscular relaxation during surgery. METHODS This randomized, controlled clinical trial was registered at http://clinicaltrials.gov (registration number NCT02495038). The participants were 81 patients scheduled for elective mastoidectomy and tympanoplasty. Participants were assigned to groups, including the intubating dose group (Group I, n = 27; combined ED95 rocuronium and ED95 cisatracurium), the small reduction group (Group S, n = 27; dose reduced by 10% of each ED95), or the large reduction group (Group L, n = 27; dose reduced by 20% of each ED95). Drugs were administered to patients and a timer was started using TOF-Watch monitoring. TOF (train-of-four) was monitored at the ulnar nerve, at a setting of 2 Hz/12 s. We recorded the time to TOF ratio = 0 (onset), time to first TOF ratio > 25% (duration 25%), and TOF 25-75% (recovery index) under total intravenous anesthesia. One-way analysis of variance was used for statistical analyses (α = 0.05, β = 0.2). RESULTS There were no significant demographic differences between groups. Group L had a longer duration to onset (mean ± standard deviation, 399.3 ± 147.8 seconds) and shorter duration 25% (39.4 ± 6.8 minutes) compared to Group I (212.8 ± 56.0 s and 51.3 ± 8.47 minutes, respectively) and Group S (230.7 ± 60.6 s and 47.9 ± 10.7 minutes, respectively). There were no other significant differences between groups. CONCLUSION Our findings contribute to determining clinically effective combinations of rocuronium and cisatracurium, as well as to predicting the pharmacokinetic characteristics of the synergistic effects. We suggest that reducing doses of both drugs by approximately 10% of their respective ED95 values is sufficient to maintain neuromuscular relaxation during minor surgery.
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Affiliation(s)
- Woo Young Park
- Department of Anesthesiology and Pain Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
- Department of Anesthesia, Sheikh Khalifa Specialty Hospital, Ras Al Khaimah, United Arab Emirates
| | - Jae Chan Choi
- Department of Anesthesiology and Pain Medicine, Intensive Care Medicine, Brain Research Group, Yonsei University Wonju College of Medicine, Wonju
| | - Hey Jeong Yun
- Department of Anesthesia, Sheikh Khalifa Specialty Hospital, Ras Al Khaimah, United Arab Emirates
| | | | - Gisoon Park
- Department of Anesthesiology and Pain Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Jong Bum Choi
- Department of Anesthesiology and Pain Medicine, Ajou University, College of Medicine, Suwon, Republic of Korea
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Chidambaran V, Tewari A, Mahmoud M. Anesthetic and pharmacologic considerations in perioperative care of obese children. J Clin Anesth 2018; 45:39-50. [DOI: 10.1016/j.jclinane.2017.12.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 12/11/2017] [Accepted: 12/14/2017] [Indexed: 10/18/2022]
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Andonakakis A, Kwiatt K. Anesthesia for Weight Reduction Surgery. Anesthesiology 2018. [DOI: 10.1007/978-3-319-74766-8_81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Anderson BJ, Holford NH. What is the best size predictor for dose in the obese child? Paediatr Anaesth 2017; 27:1176-1184. [PMID: 29076211 DOI: 10.1111/pan.13272] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/28/2017] [Indexed: 01/05/2023]
Abstract
Lean body mass is commonly proposed for anesthesia maintenance drug dosing calculations. However, total body mass used with allometric scaling has been shown to be better for propofol in obese adults and children. Fat-free mass has also been used instead of lean body mass. Fat-free mass is essentially the same as lean body mass but excludes a small percentage of mass of lipids in cell membranes, CNS, and bone marrow. Normal fat mass is a size descriptor that partitions total body mass into fat-free mass and fat mass calculated from total body mass minus fat-free mass. The relative influence of fat mass compared with fat-free mass is described by the fraction of fat mass that makes fat equivalent to fat-free mass in terms of allometric size. This fraction (Ffat) will differ for each drug and each parameter affected by body size (eg, clearance and volume of distribution). This fraction is based on the concept of theory-based allometric size. The normal fat mass based on allometric theory and partition of body mass into fat and fat-free components provides a principle-based approach explaining size and body composition effects on pharmacokinetics of all drugs in children and in adults.
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Affiliation(s)
- Brian J Anderson
- Department of Anaesthesiology, University of Auckland, Auckland, New Zealand
| | - Nick Hg Holford
- Department of Pharmacology & Clinical Pharmacology, University of Auckland, Auckland, New Zealand
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Patanwala AE, Sakles JC. Effect of patient weight on first pass success and neuromuscular blocking agent dosing for rapid sequence intubation in the emergency department. Emerg Med J 2017; 34:739-743. [DOI: 10.1136/emermed-2017-206762] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 05/05/2017] [Accepted: 07/21/2017] [Indexed: 11/03/2022]
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Naguib M, Brewer L, LaPierre C, Kopman AF, Johnson KB. The Myth of Rescue Reversal in "Can't Intubate, Can't Ventilate" Scenarios. Anesth Analg 2017; 123:82-92. [PMID: 27140684 DOI: 10.1213/ane.0000000000001347] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND An unanticipated difficult airway during induction of anesthesia can be a vexing problem. In the setting of can't intubate, can't ventilate (CICV), rapid recovery of spontaneous ventilation is a reasonable goal. The urgency of restoring ventilation is a function of how quickly a patient's hemoglobin oxygen saturation decreases versus how much time is required for the effects of induction drugs to dissipate, namely the duration of unresponsiveness, ventilatory depression, and neuromuscular blockade. It has been suggested that prompt reversal of rocuronium-induced neuromuscular blockade with sugammadex will allow respiratory activity to recover before significant arterial desaturation. Using pharmacologic simulation, we compared the duration of unresponsiveness, ventilatory depression, and neuromuscular blockade in normal, obese, and morbidly obese body sizes in this life-threatening CICV scenario. We hypothesized that although neuromuscular function could be rapidly restored with sugammadex, significant arterial desaturation will occur before the recovery from unresponsiveness and/or central ventilatory depression in obese and morbidly obese body sizes. METHODS We used published models to simulate the duration of unresponsiveness and ventilatory depression using a common induction technique with predicted rates of oxygen desaturation in various size patients and explored to what degree rapid reversal of rocuronium-induced neuromuscular blockade with sugammadex might improve the return of spontaneous ventilation in CICV situations. RESULTS Our simulations showed that the duration of neuromuscular blockade was longer with 1.0 mg/kg succinylcholine than with 1.2 mg/kg rocuronium followed 3 minutes later by 16 mg/kg sugammadex (10.0 vs 4.5 minutes). Once rocuronium neuromuscular blockade was completely reversed with sugammadex, the duration of hemoglobin oxygen saturation >90%, loss of responsiveness, and intolerable ventilatory depression (a respiratory rate of ≤4 breaths/min) were dependent on the body habitus and duration of oxygen administration. There is a high probability of intolerable ventilatory depression that extends well beyond the time when oxygen saturation decreases <90%, especially in obese and morbidly obese patients. If ventilatory rescue is inadequate, oxygen desaturation will persist in the latter groups, despite full reversal of neuromuscular blockade. Depending on body habitus, the duration of intolerable ventilatory depression after sugammadex reversal may be as long as 15 minutes in 5% of individuals. CONCLUSIONS The clinical management of CICV should focus primarily on restoration of airway patency, oxygenation, and ventilation consistent with the American Society of Anesthesiologist's practice guidelines for management of the difficult airway. Pharmacologic intervention cannot be relied upon to rescue patients in a CICV crisis.
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Affiliation(s)
- Mohamed Naguib
- From the *Department of General Anesthesia, Anesthesiology Institute, Cleveland Clinic, Cleveland, Ohio; †Department of Anesthesiology, University of Utah, Salt Lake City, Utah; and ‡Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts
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Abstract
Obesity has increased in incidence worldwide. Along with the increased number of obese patients, comorbid conditions are also more prevalent in this population. Obesity leads to changes in the physiology of patients along with an altered response to pharmacologic therapy. Vigilant perioperative physicians must be aware of the unique characteristics of administered agents in order to appropriately provide anesthetic care for obese patients. Because of the variability in tissue content in obese patients and changes in pharmacokinetic modeling, a one-size-fits-all approach is not justified and a more sophisticated and prudent approach is indicated.
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Affiliation(s)
- Simon Willis
- Department of Physical Medicine and Rehabilitation, MedStar Georgetown University Hospital/National Rehabilitation Hospital, 102 Irving Street Northwest, Washington, DC 20010, USA
| | - Gregory J Bordelon
- Department of Anesthesiology, Louisiana State University Medical Center, 1542 Tulane Avenue, Room 659, New Orleans, LA 70112, USA
| | - Maunak V Rana
- Department of Anesthesiology, Advocate Illinois Masonic Medical Center, 836 West Wellington Avenue, Suite 4815, Chicago, IL 60657, USA.
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Clinical Practice Guidelines for Sustained Neuromuscular Blockade in the Adult Critically Ill Patient. Crit Care Med 2017; 44:2079-2103. [PMID: 27755068 DOI: 10.1097/ccm.0000000000002027] [Citation(s) in RCA: 161] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To update the 2002 version of "Clinical practice guidelines for sustained neuromuscular blockade in the adult critically ill patient." DESIGN A Task Force comprising 17 members of the Society of Critical Medicine with particular expertise in the use of neuromuscular-blocking agents; a Grading of Recommendations Assessment, Development, and Evaluation expert; and a medical writer met via teleconference and three face-to-face meetings and communicated via e-mail to examine the evidence and develop these practice guidelines. Annually, all members completed conflict of interest statements; no conflicts were identified. This activity was funded by the Society for Critical Care Medicine, and no industry support was provided. METHODS Using the Grading of Recommendations Assessment, Development, and Evaluation system, the Grading of Recommendations Assessment, Development, and Evaluation expert on the Task Force created profiles for the evidence related to six of the 21 questions and assigned quality-of-evidence scores to these and the additional 15 questions for which insufficient evidence was available to create a profile. Task Force members reviewed this material and all available evidence and provided recommendations, suggestions, or good practice statements for these 21 questions. RESULTS The Task Force developed a single strong recommendation: we recommend scheduled eye care that includes lubricating drops or gel and eyelid closure for patients receiving continuous infusions of neuromuscular-blocking agents. The Task Force developed 10 weak recommendations. 1) We suggest that a neuromuscular-blocking agent be administered by continuous intravenous infusion early in the course of acute respiratory distress syndrome for patients with a PaO2/FIO2 less than 150. 2) We suggest against the routine administration of an neuromuscular-blocking agents to mechanically ventilated patients with status asthmaticus. 3) We suggest a trial of a neuromuscular-blocking agents in life-threatening situations associated with profound hypoxemia, respiratory acidosis, or hemodynamic compromise. 4) We suggest that neuromuscular-blocking agents may be used to manage overt shivering in therapeutic hypothermia. 5) We suggest that peripheral nerve stimulation with train-of-four monitoring may be a useful tool for monitoring the depth of neuromuscular blockade but only if it is incorporated into a more inclusive assessment of the patient that includes clinical assessment. 6) We suggest against the use of peripheral nerve stimulation with train of four alone for monitoring the depth of neuromuscular blockade in patients receiving continuous infusion of neuromuscular-blocking agents. 7) We suggest that patients receiving a continuous infusion of neuromuscular-blocking agent receive a structured physiotherapy regimen. 8) We suggest that clinicians target a blood glucose level of less than 180 mg/dL in patients receiving neuromuscular-blocking agents. 9) We suggest that clinicians not use actual body weight and instead use a consistent weight (ideal body weight or adjusted body weight) when calculating neuromuscular-blocking agents doses for obese patients. 10) We suggest that neuromuscular-blocking agents be discontinued at the end of life or when life support is withdrawn. In situations in which evidence was lacking or insufficient and the study results were equivocal or optimal clinical practice varies, the Task Force made no recommendations for nine of the topics. 1) We make no recommendation as to whether neuromuscular blockade is beneficial or harmful when used in patients with acute brain injury and raised intracranial pressure. 2) We make no recommendation on the routine use of neuromuscular-blocking agents for patients undergoing therapeutic hypothermia following cardiac arrest. 3) We make no recommendation on the use of peripheral nerve stimulation to monitor degree of block in patients undergoing therapeutic hypothermia. 4) We make no recommendation on the use of neuromuscular blockade to improve the accuracy of intravascular-volume assessment in mechanically ventilated patients. 5) We make no recommendation concerning the use of electroencephalogram-derived parameters as a measure of sedation during continuous administration of neuromuscular-blocking agents. 6) We make no recommendation regarding nutritional requirements specific to patients receiving infusions of neuromuscular-blocking agents. 7) We make no recommendation concerning the use of one measure of consistent weight over another when calculating neuromuscular-blocking agent doses in obese patients. 8) We make no recommendation on the use of neuromuscular-blocking agents in pregnant patients. 9) We make no recommendation on which muscle group should be monitored in patients with myasthenia gravis receiving neuromuscular-blocking agents. Finally, in situations in which evidence was lacking or insufficient but expert consensus was unanimous, the Task Force developed six good practice statements. 1) If peripheral nerve stimulation is used, optimal clinical practice suggests that it should be done in conjunction with assessment of other clinical findings (e.g., triggering of the ventilator and degree of shivering) to assess the degree of neuromuscular blockade in patients undergoing therapeutic hypothermia. 2) Optimal clinical practice suggests that a protocol should include guidance on neuromuscular-blocking agent administration in patients undergoing therapeutic hypothermia. 3) Optimal clinical practice suggests that analgesic and sedative drugs should be used prior to and during neuromuscular blockade, with the goal of achieving deep sedation. 4) Optimal clinical practice suggests that clinicians at the bedside implement measure to attenuate the risk of unintended extubation in patients receiving neuromuscular-blocking agents. 5) Optimal clinical practice suggests that a reduced dose of an neuromuscular-blocking agent be used for patients with myasthenia gravis and that the dose should be based on peripheral nerve stimulation with train-of-four monitoring. 6) Optimal clinical practice suggests that neuromuscular-blocking agents be discontinued prior to the clinical determination of brain death.
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Taguchi S, Ono K, Hidaka H, Koyama Y. Effect of lung-protective ventilation-induced respiratory acidosis on the duration of neuromuscular blockade by rocuronium. J Anesth 2016; 30:994-998. [DOI: 10.1007/s00540-016-2235-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Accepted: 08/09/2016] [Indexed: 10/21/2022]
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Guimarães J, Pinho D, Nunes CS, Cavaleiro CS, Machado HS. Effect of Boussignac continuous positive airway pressure ventilation on Pao2 and Pao2/Fio2 ratio immediately after extubation in morbidly obese patients undergoing bariatric surgery: a randomized controlled trial. J Clin Anesth 2016; 34:562-70. [DOI: 10.1016/j.jclinane.2016.06.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 05/09/2016] [Accepted: 06/07/2016] [Indexed: 01/06/2023]
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Varrique RM, Lauretti GR, Matsumoto JA, Lanchote VL, de Moraes NV. Pharmacokinetics and pharmacodynamics of rocuronium in young adult and elderly patients undergoing elective surgery. J Pharm Pharmacol 2016; 68:1351-1358. [DOI: 10.1111/jphp.12617] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 07/10/2016] [Indexed: 12/20/2022]
Abstract
Abstract
Objective
To evaluate the impact of advanced age on rocuronium kinetic disposition in ASA I–III patients undergoing elective surgeries.
Methods
Young adult (20–50 years, n = 15) and elderly patients (65–85 years, n = 14) submitted to surgery under general anaesthesia were investigated. All patients were induced with individual intravenous doses of midazolam, rocuronium, fentanyl and propofol. Rocuronium-induced neuromuscular block was monitored by train of four stimulations of the adductor muscle of the thumb on the ulnar nerve. The pharmacokinetic parameters were calculated by non-compartmental analysis. The relationship between rocuronium plasma concentration and the neuromuscular blockade was described by a sigmoidal Emax model.
Key-findings
Elderly patients presented decreased Cl (2.1 ml/kg per min vs 2.8 ml/kg per min; P = 0.0123); increased AUC/dose (507.8 μg min/ml (mg/kg) vs 392.2 μg min/ml/(mg/kg); P = 0.0168) and reduced volume of distribution (285.4 ml/kg vs 435.6 ml/kg, P = 0.0434) compared to young adults. The concentrations required to achieve 50% of maximum neuromuscular block (EC50) were similar for young adult (338.8 ng/ml) and elderly (462.7 ng/ml) patients (P > 0.05).
Conclusions
Elderly patients showed increased AUC/D and reduced total Cl compared to young adult patients due to the age-related reduced renal function. Differences in the PK-PD properties of rocuronium in elderly population are due to changes in drug disposition rather than to alterations in the sensitivity to the drug.
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Affiliation(s)
- Renan M Varrique
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, USP – Univ. de São Paulo, Ribeirão Preto, Brazil
| | - Gabriela R Lauretti
- Faculdade de Medicina de Ribeirão Preto, USP – Univ. de São Paulo, Ribeirão Preto, Brazil
| | - Julia A Matsumoto
- Faculdade de Ciências Farmacêuticas, UNESP – Univ. Estadual Paulista, Araraquara, Brazil
| | - Vera L Lanchote
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, USP – Univ. de São Paulo, Ribeirão Preto, Brazil
| | - Natalia V de Moraes
- Faculdade de Ciências Farmacêuticas, UNESP – Univ. Estadual Paulista, Araraquara, Brazil
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Schaller SJ, Lewald H. Clinical pharmacology and efficacy of sugammadex in the reversal of neuromuscular blockade. Expert Opin Drug Metab Toxicol 2016; 12:1097-108. [DOI: 10.1080/17425255.2016.1215426] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Stefan Josef Schaller
- Klinik für Anaesthesiologie, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Heidrun Lewald
- Klinik für Anaesthesiologie, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
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The Effect of Patient Weight and Provider Training and Experience on Dosing of Rocuronium. Anesthesiol Res Pract 2016; 2016:3136895. [PMID: 27429615 PMCID: PMC4939195 DOI: 10.1155/2016/3136895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 04/03/2016] [Accepted: 06/08/2016] [Indexed: 11/17/2022] Open
Abstract
Introduction. Maintenance dosing of neuromuscular blocking agents is complex and varies with patient, procedure, and clinical situation. With this in mind, we sought to identify factors impacting the maintenance dosing of neuromuscular blockers as a step toward identifying best practice with respect to minimizing residual neuromuscular blockade. Methods. Cases utilizing rocuronium from July 1, 2010, to June 30, 2014, at the sponsoring institution were analyzed. Using a mixed model to account for repeated measures, patients were analyzed by dose and weight category as defined by the World Health Organization (eight categories ranging from very severely underweight to very severely obese) as well as by the administering provider's level of experience. Results. The study included 12,671 patients with a mean age of 49.7 (SD 16.7). Increasing weight category and higher levels of provider experience were associated with higher doses for rocuronium. There were no differences in initial dose or in frequency of maintenance dosing by weight category after controlling for case length. Discussion. The two dosing patterns identified, higher doses for overweight patients and higher doses administered by experienced providers, are modifiable factors that could enhance patient safety.
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De Robertis E, Zito Marinosci G, Romano GM, Piazza O, Iannuzzi M, Cirillo F, De Simone S, Servillo G. The use of sugammadex for bariatric surgery: analysis of recovery time from neuromuscular blockade and possible economic impact. CLINICOECONOMICS AND OUTCOMES RESEARCH 2016; 8:317-22. [PMID: 27418846 PMCID: PMC4934482 DOI: 10.2147/ceor.s109951] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Neuromuscular block (NMB) monitoring and use of reversal agents accelerate the recovery time and improve the workflow in the operating room. We aimed to compare recovery times after sugammadex or neostigmine administration, and estimate the time spent in operating theater and the possible economic impact of a faster recovery, in morbidly obese patients undergoing bariatric surgery. METHODS We conducted a retrospective study that analyzed data from records of morbidly obese patients (body mass index >40 kg/m(2)) undergoing elective laparoscopic bariatric surgery in which sugammadex or neostigmine were used to reverse NMB. Patients were divided in two groups: group 1 (sugammadex group [SUG]) received rocuronium and sugammadex for reversal and group 2 (neostigmine group [NEO]) received either rocuronium or cisatracurium and neostigmine. Data are presented as mean (standard deviation). RESULTS Compared with NEO, SUG group showed shorter times to achieve train-of-four ratio of 0.9 (P<0.05) and an Aldrete score of 10 (P<0.05), a higher cost (€146.7 vs €3.6 [P<0.05]), plus a remarkable less duration of operating theater occupancy (P<0.05). Sugammadex cost accounted for 2.58% of the total cost per surgery, while neostigmine cost accounted for 0.06%. Total time saved in SUG group was 19.4 hours, which could be used to perform 12 extra laparoscopic sleeve gastrectomies. CONCLUSION Reversal from NMB was significantly faster with sugammadex than with neostigmine. Although sugammadex was substantially more expensive, duration of operating theater occupancy was reduced with potentially workflow increase or personnel reduced cost.
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Affiliation(s)
- Edoardo De Robertis
- Department of Neurosciences, Reproductive and Odontostomatologic Sciences, University Federico II, Naples
| | - Geremia Zito Marinosci
- Department of Neurosciences, Reproductive and Odontostomatologic Sciences, University Federico II, Naples
| | - Giovanni Marco Romano
- Department of Neurosciences, Reproductive and Odontostomatologic Sciences, University Federico II, Naples
| | - Ornella Piazza
- Department of Medicine and Surgery, University of Salerno, Salerno
| | - Michele Iannuzzi
- Department of Neurosciences, Reproductive and Odontostomatologic Sciences, University Federico II, Naples
| | - Fabrizio Cirillo
- Department of Neurosciences, Reproductive and Odontostomatologic Sciences, University Federico II, Naples
| | - Stefania De Simone
- Institute for Research on Innovation and Services for Development, National Research Council, Naples, Italy
| | - Giuseppe Servillo
- Department of Neurosciences, Reproductive and Odontostomatologic Sciences, University Federico II, Naples
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Sakızcı-Uyar B, Çelik S, Postacı A, Bayraktar Y, Dikmen B, Özkoçak-Turan I, Saçan O. Comparison of the effect of rocuronium dosing based on corrected or lean body weight on rapid sequence induction and neuromuscular blockade duration in obese female patients. Saudi Med J 2016; 37:60-5. [PMID: 26739976 PMCID: PMC4724681 DOI: 10.15537/smj.2016.1.14099] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Accepted: 11/28/2015] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVES To compare onset time, duration of action, and tracheal intubation conditions in obese patients when the intubation dose of rocuronium was based on corrected body weight (CBW) versus lean body weight (LBW) for rapid sequence induction. METHODS This prospective study was carried out at Numune Education and Research Hospital, Ankara, Turkey between August 2013 and May 2014. Forty female obese patients scheduled for laparoscopic surgery under general anesthesia were randomized into 2 groups. Group CBW (n=20) received 1.2 mg/kg rocuronium based on CBW, and group LBW (n=20) received 1.2 mg/kg rocuronium based on LBW. Endotracheal intubation was performed 60 seconds after injection of muscle relaxant, and intubating conditions were evaluated. Neuromuscular transmission was monitored using acceleromyography of the adductor pollicis. Onset time, defined as time to depression of the twitch tension to 95% of its control value, and duration of action, defined as time to achieve one response to train-of-four stimulation (T1) were recorded. RESULTS No significant differences were observed between the groups in intubation conditions or onset time (50-60 seconds median, 30-30 interquartile range [IQR]). Duration of action was significantly longer in the CBW group (60 minutes median, 12 IQR) than the LBW group (35 minutes median, 16 IQR; p less than 0.01). CONCLUSION In obese patients, dosing of 1.2 mg/kg rocuronium based on LBW provides excellent or good tracheal intubating conditions within 60 seconds after administration and does not lead to prolonged duration of action.
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Affiliation(s)
- Bahar Sakızcı-Uyar
- Department of Anesthesiology and Reanimation, Tatvan State Hospital, Bitlis, Turkey. E-mail.
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