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Rajan S, Rishi G, Ibrahim M. Opioid alternatives in spine surgeries. Curr Opin Anaesthesiol 2024:00001503-990000000-00222. [PMID: 39145616 DOI: 10.1097/aco.0000000000001423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
PURPOSE OF REVIEW The escalating opioid crisis has intensified the need to explore alternative pain management strategies for patients undergoing spine surgery. This review is timely and relevant as it synthesizes recent research on opioid alternatives for perioperative management, assessing their efficacy, side effects, and postoperative outcomes. RECENT FINDINGS A systematic search was conducted to capture articles from the past 18 months that examined opioid-sparing strategies. Findings indicate that multimodal analgesia, incorporating nonsteroidal anti-inflammatory drugs (NSAIDs), acetaminophen, lidocaine, gabapentinoids, N-methyl-D-aspartate (NMDA) antagonists, dexmedetomidine, and emerging regional block techniques like the erector spinae block and TLIF (thoraco lumbar interfascial block), can significantly reduce opioid consumption without compromising pain relief. Additionally, these approaches reduce opioid-related side effects such as postoperative nausea, vomiting, and prolonged hospital stays. SUMMARY The use of multimodal analgesia aligns with current pain management guidelines and addresses public health concerns related to opioid misuse. While effective, these alternatives are not without side effects, and the ultimate outcome depends on balancing benefits and risks. Future research should focus on the long-term outcomes of opioid alternatives, their effectiveness across diverse populations, and further validation and optimization of these strategies.
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Affiliation(s)
- Shobana Rajan
- Cleveland Clinic Multispeciality Anesthesia, Cleveland, Ohio
| | - Gaiha Rishi
- Interventional Pain Medicine, Advocate Illinois Masonic Medical Center Chicago, Illinois, USA
| | - Marco Ibrahim
- Cleveland Clinic Multispeciality Anesthesia, Cleveland, Ohio
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2
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Li S, Li H, Zhang R, Zhang F, Yin J, He L. Effect of modified opioid sparing anaesthesia on postoperative quality of recovery in patients undergoing laparoscopic bariatric surgery: protocol for a monocentre, double-blind randomised controlled trial - the MOSA study. BMJ Open 2024; 14:e086523. [PMID: 39059808 DOI: 10.1136/bmjopen-2024-086523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/28/2024] Open
Abstract
INTRODUCTION Obesity patients undergoing laparoscopic bariatric surgery (LBS) are frequently encountered perioperative adverse events related to opioids-based anaesthesia (OBA) or opioids-free anaesthesia (OFA). While modified opioid-sparing anaesthesia (MOSA) has been shown to lower the occurrence of adverse events related to OBA and OFA. This study is to assess the efficacy of MOSA in enhancing the recovery quality among individuals undergoing LBS. METHODS AND ANALYSIS A single-centre, prospective, double-blind, randomised controlled trial is conducted at a tertiary hospital. A total of 74 eligible participants undergoing elective LBS will be recruited and randomly allocated. Patients in the MOSA group will receive a combination of low-dose opioids, minimal dexmedetomidine, esketamine and lidocaine, while in the OBA group will receive standard general anaesthesia with opioids. Patients in both groups will receive standard perioperative care. The primary outcome is the quality of recovery-15 score assessed at 24 hours after surgery. Secondary outcomes include pain levels, anxiety and depression assessments, gastrointestinal function recovery, perioperative complication rates, opioid consumption and length of hospital stay. ETHICS AND DISSEMINATION Ethical approval has been provided by the Ethical Committee of Yan'an Hospital of Kunming City (approval No. 2023-240-01). Eligible patients will provide written informed consent to the investigator. The outcomes of this trial will be disseminated in a peer-reviewed scholarly journal. TRIAL REGISTRATION NUMBER The study protocol is registered at https://www.chictr.org.cn/ on 19 December 2023. (identifier: ChiCTR2300078806). The trial was conducted using V.1.0.
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Affiliation(s)
- Shikuo Li
- Anesthesiology, Yan'an Hospital of Kunming City, Kunming, China
| | - Honghao Li
- Anesthesiology Operating Center, Yan'an Hospital of Kunming City, Kunming, China
| | - Ruqiang Zhang
- Anesthesiology, Yan'an Hospital of Kunming City, Kunming, China
| | - Furong Zhang
- Anesthesiology, Yan'an Hospital of Kunming City, Kunming, China
| | - Jianwei Yin
- Anesthesiology, Yan'an Hospital of Kunming City, Kunming, China
| | - Liang He
- Anesthesiology, Yan'an Hospital of Kunming City, Kunming, China
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3
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Didier C, Faucher S, Sarra Ferrer M, Lapouge M, Junot S, Jourdan G. Postoperative opioid-free analgesia in dogs undergoing tibial plateau leveling osteotomy: a feasibility study. Front Vet Sci 2024; 11:1394366. [PMID: 39036794 PMCID: PMC11257878 DOI: 10.3389/fvets.2024.1394366] [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: 03/01/2024] [Accepted: 06/19/2024] [Indexed: 07/23/2024] Open
Abstract
Objectives This study was designed to prospectively evaluate the feasibility of an opioid-free anesthesia protocol and describe the quality of recovery and management of postoperative analgesia in dogs after a tibial plateau leveling osteotomy (TPLO). Methods In total, 20 dogs presented for TPLO were included. After premedication with intravenous (IV) medetomidine (0.005-0.007 mg/kg) and midazolam (0.2 mg/kg), the dogs were anesthetized using ketamine (2 mg/kg) and propofol and maintained with isoflurane and ketamine CRI (0.6 mg/kg/h). Sciatic and femoral nerve blocks were performed with bupivacaine 0.5% (0.087 +/- 0.01 and 0.09 +/- 0.02 mL/kg, respectively). Meloxicam (0.2 mg/kg IV) was administered intraoperatively, after osteotomy. Fentanyl (0.002 mg/kg IV) was administered intraoperatively, as rescue analgesia in the case of sustained increase in cardiorespiratory variables. Two pain scores (French 4A-VET and Glasgow short form) were performed at conscious sternal recumbency and 2, 4, 6, 8, 12, and 20 h after extubation and compared to baseline using a Friedman test followed by a Nemenyi post-hoc test. The time taken for the first food intake and urination was reported. Results Intraoperative opioid-free anesthesia was feasible in 11 dogs, whereas 9 dogs received fentanyl once during arthrotomy. No opioid postoperative rescue analgesia was required. Food intake occurred within 6 h, and all dogs were discharged after 24 h without any complication. Conclusion Total opioid-free postoperative analgesia was achieved in all dogs, with adequate recoveries. Although opioid-free anesthesia was feasible in 55% of the population, a single dose of fentanyl was necessary in 45% of the dogs during arthrotomy.
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Affiliation(s)
- Caroline Didier
- Department of Clinical Sciences, National Veterinary School of Toulouse, University of Toulouse, Toulouse, France
| | - Sarah Faucher
- Department of Clinical Sciences, National Veterinary School of Toulouse, University of Toulouse, Toulouse, France
| | - Marti Sarra Ferrer
- Department of Clinical Sciences, National Veterinary School of Toulouse, University of Toulouse, Toulouse, France
| | | | - Stéphane Junot
- Department of Veterinary Anesthesia and Analgesia, Université de Lyon, VetAgro Sup, Marcy l’Etoile, France
| | - Géraldine Jourdan
- Department of Clinical Sciences, National Veterinary School of Toulouse, University of Toulouse, Toulouse, France
- RESTORE Research Center, University of Toulouse, INSERM, CNRS, EFS, ENVT, Toulouse, France
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Desai A, Razak A, Ghaly L, Bennici L, Moore R. Opioid-Obviating Analgesia for Adolescent Multilevel Spinal Fusion Surgery: A Problem-Based Learning Discussion. A A Pract 2024; 18:e01823. [PMID: 38989903 DOI: 10.1213/xaa.0000000000001823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
A female teenager with a history of polysubstance use, including a recent overdose, is scheduled for multilevel posterior spinal fusion surgery due to idiopathic scoliosis and has asked to avoid the use of opioids in the context of her upcoming surgery. This problem-based learning discussion (PBLD) focuses on the examination of the care of a spinal fusion patient that allowed for the successful provision of opioid-obviating care.
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Affiliation(s)
- Amruta Desai
- From the Department of Anesthesiology, Stony Brook University Health Science Center, Stony Brook, New York
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5
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Tanaka N, Kadoya Y, Suzuka T, Yamanaka T, Ida M, Naito Y, Ozu N, Hori S, Kawaguchi M. Effect of nociception level-directed analgesic management on opioid usage in robot-assisted laparoscopic radical prostatectomy: a single-center, single-blinded, randomized controlled trial. J Anesth 2024:10.1007/s00540-024-03365-x. [PMID: 38935172 DOI: 10.1007/s00540-024-03365-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024]
Abstract
PURPOSE To assess the importance of appropriate opioid administration methods according to nociceptive monitoring. METHODS We conducted a randomized controlled trial involving 54 patients who underwent robot-assisted laparoscopic radical prostatectomy at our hospital. Patients were randomly allocated to either receive nociception level (NOL)-directed intraoperative opioid management with a minimum flow of remifentanil (NOL group) or conventional intraoperative analgesic management (control group). The primary outcome was the mean intraoperative remifentanil infusion flow rate (intraoperative remifentanil usage [μg]/ideal body weight [kg]/operation time [min]). The main secondary outcomes were plasma concentrations of three perioperative inflammatory biomarkers (interleukin-6, C-reactive protein [CRP], and cortisol levels) and postoperative pain (Numeric Rating Scale [NRS]) scores 2 h postoperatively and on postoperative days 1, 2, 3, and 7. RESULTS Compared with standard analgesia management, NOL-directed analgesic management reduced remifentanil consumption by 20% ( - 0.038; 95% confidence interval, - 0.059 to - 0.017; p = 0.0007). NOL-directed management did not lead to an increase in IL-6, CRP, or cortisol levels compared with conventional analgesic management. Furthermore, this protocol led to improvements in the NRS scores at rest 2 h postoperatively and upon movement up to postoperative day 3. CONCLUSION NOL-directed analgesic management reduced remifentanil consumption by 20% and the NRS scores at rest 2 h postoperatively and upon movement up to postoperative day 3 without an increase in inflammatory marker levels. REGISTRY NUMBER Japan Registry of Clinical Trials, JRCTs052220034.
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Affiliation(s)
- Nobuhiro Tanaka
- Department of Anesthesiology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, Japan.
| | - Yuma Kadoya
- Department of Anesthesiology, Ikeda City Hospital, Ikeda, Osaka, Japan
| | - Takanori Suzuka
- Department of Anesthesiology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, Japan
| | - Takayuki Yamanaka
- Department of Anesthesiology, Nara Prefecture General Medical Center, Nara, Nara, Japan
| | - Mitsuru Ida
- Department of Anesthesiology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, Japan
| | - Yusuke Naito
- Department of Anesthesiology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, Japan
| | - Naoki Ozu
- Institute for Clinical and Translational Science, Nara Medical University Hospital, Kashihara, Nara, Japan
| | - Shunta Hori
- Department of Urology, Nara Medical University, Kashihara, Nara, Japan
| | - Masahiko Kawaguchi
- Department of Anesthesiology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, Japan
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Aiolfi A, Bona D, Shabat G, Resta M, Bonavina L. Is paravertebral block the new standard of care for postoperative analgesia after thoracoscopic surgery? J Thorac Dis 2024; 16:2677-2680. [PMID: 38738263 PMCID: PMC11087611 DOI: 10.21037/jtd-23-1896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 02/26/2024] [Indexed: 05/14/2024]
Affiliation(s)
- Alberto Aiolfi
- Division of General Surgery, Department of Biomedical Science for Health, IRCCS Galeazzi-Sant’Ambrogio, University of Milan, Milan, Italy
| | - Davide Bona
- Division of General Surgery, Department of Biomedical Science for Health, IRCCS Galeazzi-Sant’Ambrogio, University of Milan, Milan, Italy
| | - Galyna Shabat
- Division of General and Foregut Surgery, Department of Biomedical Science for Health, IRCCS Policlinico San Donato, University of Milan, Milan, Italy
| | - Marco Resta
- Division of General and Foregut Surgery, Department of Biomedical Sciences for Health, IRCCS Policlinico San Donato, Anesthesiology and Intensive Care Unit, University of Milan, Milan, MI, Italy
| | - Luigi Bonavina
- Division of General and Foregut Surgery, Department of Biomedical Science for Health, IRCCS Policlinico San Donato, University of Milan, Milan, Italy
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Léger M, Perrault T, Pessiot-Royer S, Parot-Schinkel E, Costerousse F, Rineau E, Lasocki S. Opioid-free Anesthesia Protocol on the Early Quality of Recovery after Major Surgery (SOFA Trial): A Randomized Clinical Trial. Anesthesiology 2024; 140:679-689. [PMID: 37976460 DOI: 10.1097/aln.0000000000004840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
BACKGROUND Opioid-free anesthesia is increasingly being adopted to reduce opioid consumption, but its impact on early postoperative recovery after major surgery has not been evaluated in comparative trials. The hypothesis was that an opioid-free anesthesia protocol would enhance the early quality of recovery for patients undergoing scheduled major surgery under general anesthesia. METHODS The SOFA study was a monocentric, randomized, controlled, assessor- and patient-blinded clinical trial conducted from July 10, 2021, to February 12, 2022. The eligible population included male and female patients undergoing scheduled major surgery, excluding bone procedures, that typically require opioids for postoperative pain management. Patients in the intervention group received a combination of at least two drugs among ketamine, lidocaine, clonidine, and magnesium sulfate, without opioids for anesthesia. The standard group received opioids. The primary outcome was early postoperative quality of recovery, assessed by Quality of Recovery-15 score at 24 h after surgery. Secondary outcomes were Quality of Recovery-15 at 48 and 72 h after surgery, incidence of chronic pain, and quality of life at 3 months. RESULTS Of the 136 randomized patients, 135 were included in the primary analysis (mean age, 45.9 ± 15.7 yr; 116 females [87.2%]; 85 underwent major plastic surgery [63.9%]), with 67 patients in the opioid-free anesthesia group and 68 in the standard group. The mean Quality of Recovery-15 at 24 h was 114.9 ± 15.2 in the opioid-free anesthesia group versus 108.7 ± 18.1 in the standard group (difference, 6.2; 95% CI, 0.4 to 12.0; P = 0.026). Quality of Recovery-15 scores also differed significantly at 48 h (difference, 8.7; 95% CI, 2.9 to 14.5; P = 0.004) and at 72 h (difference, 7.3; 95% CI, 1.6 to 13.0; P = 0.013). There were no differences in other secondary outcomes. No major adverse events were noticed. CONCLUSIONS The opioid-free anesthesia protocol improved quality of recovery after major elective surgery in a statistically but not clinically significant manner when compared to standard anesthesia. EDITOR’S PERSPECTIVE
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Affiliation(s)
- Maxime Léger
- Anesthesia and Intensive Care Department, University Hospital Center of Angers, Angers, France; and Department of Anesthesia and Perioperative Care, University of California-San Francisco, San Francisco, California
| | - Tristan Perrault
- Anesthesia and Intensive Care Department, University Hospital Center of Angers, Angers, France
| | - Solène Pessiot-Royer
- Anesthesia and Intensive Care Department, University Hospital Center of Angers, Angers, France
| | - Elsa Parot-Schinkel
- Biostatistics and Methodology Department, University Hospital Center of Angers, Angers, France
| | - Fabienne Costerousse
- Anesthesia and Intensive Care Department, University Hospital Center of Angers, Angers, France
| | - Emmanuel Rineau
- Anesthesia and Intensive Care Department, University Hospital Center of Angers, Angers, France
| | - Sigismond Lasocki
- Anesthesia and Intensive Care Department, University Hospital Center of Angers, Angers, France
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Schiessler J, Leffler A. [Opioid-free anesthesia : Wrong track or meaningful exit from the era of opioid-based analgesia?]. DIE ANAESTHESIOLOGIE 2024; 73:223-231. [PMID: 38568253 DOI: 10.1007/s00101-024-01397-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/28/2024] [Indexed: 04/17/2024]
Abstract
The limitations and disadvantages of opioids in anesthesia are very well known but the advantages combined with a lack of effective alternatives even now still prevents refraining from using opioids as part of an adequate pain therapy. For decades, pain research has had the declared goal of replacing opioids with new substances which have no serious side effects; however, currently this goal seems to be a long way off. Due to the media coverage of the "opioid crisis" in North America, the use of opioids for pain management is also increasingly being questioned by the patients. Measures to contain this crisis are only slowly taking effect in view of the increasing number of deaths, which is why the triggers are still being sought. The perioperative administration of opioids is not only a possible gateway to addiction and abuse but it can also cause outcome-relevant complications, such as respiratory depression, postoperative nausea and vomiting and an increase in postoperative pain. Therefore, these considerations gave rise to the idea of an opioid-free anesthesia (OFA), i.e., opioids are not administered as part of anesthesia to carry out surgical procedures. Although this idea may make sense at first glance, a rapid introduction of this concept appears to be risky as it entails significant changes for the entire anesthesiological management. Based on relatively robust data from clinical studies, this concept can now be evaluated and discussed not only emotionally but also objectively. This review article presents arguments for or against the complete avoidance of intraoperative or even perioperative opioids. The current conditions in Germany are primarily taken into account, so that the perioperative pain therapy is transferable to the established standards. The results from current clinical studies on the implementation of an opioid-free anesthesia are summarized and discussed.
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Affiliation(s)
- Julia Schiessler
- Klinik für Anästhesiologie und Intensivmedizin, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland
| | - Andreas Leffler
- Klinik für Anästhesiologie und Intensivmedizin, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland.
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Kehlet H, Lobo DN. Exploring the need for reconsideration of trial design in perioperative outcomes research: a narrative review. EClinicalMedicine 2024; 70:102510. [PMID: 38444430 PMCID: PMC10912044 DOI: 10.1016/j.eclinm.2024.102510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 03/07/2024] Open
Abstract
"Enhanced recovery after surgery" is a multimodal effort to control perioperative pathophysiology and improve outcome. However, despite advances in perioperative care, postoperative complications and the need for hospitalisation and prolonged recovery continue to be challenging. This is further complicated by procedure-specific and patient-associated risk factors, given the increase in the number of elderly and frail patients with multiple comorbidities undergoing surgery. This paper is a critical assessment of current methodology for trials in perioperative medicine. We make a plea to reconsider the design of future interventional trials to improve surgical outcome, based upon studies of potentially effective interventions, but often without improvements in recovery. The complexity of perioperative pathophysiology necessitates a procedure- and patient-specific approach whenever outcome is assessed or interventions are planned. With improved understanding of perioperative pathophysiology, the way to improve outcomes looks promising, provided that knowledge and established enhanced recovery programmes are integrated in trial design. Funding None.
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Affiliation(s)
- Henrik Kehlet
- Section for Surgical Pathophysiology, Rigshospitalet, Copenhagen University, Copenhagen, Denmark
| | - Dileep N. Lobo
- Nottingham Digestive Diseases Centre, Division of Translational Medical Sciences, School of Medicine, University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom
- National Institute for Health Research Nottingham Biomedical Research Centre, Nottingham University Hospitals and University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom
- Division of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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Lohela TJ, Poikola S, Backmansson D, Lapatto-Reiniluoto O, Backman JT, Olkkola KT, Lilius TO. Influence of Intravenous S-Ketamine on the Pharmacokinetics of Oral Morphine in Healthy Volunteers. Anesth Analg 2024; 138:598-606. [PMID: 37733945 PMCID: PMC10852043 DOI: 10.1213/ane.0000000000006640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/23/2023] [Indexed: 09/23/2023]
Abstract
BACKGROUND Subanesthetic ketamine may reduce perioperative consumption of opioids. We studied whether intravenous S-ketamine alters the pharmacokinetics of oral morphine in healthy volunteers. METHODS In this paired, randomized, double-blind, crossover trial, 12 participants under a 2-hour intravenous S-ketamine (0.57 mg/kg/h) or placebo infusion received oral morphine (0.2 mg/kg) at 30 minutes. Plasma concentrations of ketamine, morphine, and their major metabolites were quantified for 24 hours. The primary end point was area under the curve (AUC) 0-24 of morphine. Other pharmacokinetic variables for morphine and its metabolites were studied as secondary end points. The data were analyzed as between-phase comparisons for each participant using Wilcoxon matched-pairs signed-rank tests ( tmax ) or paired t -tests on log-transformed variables (other variables). RESULTS While the AUC 0-24 was similar between the 2 phases, S-ketamine reduced the AUC 0-1.5 of oral morphine by 69% (ratio to control, 0.31; 90% confidence interval [CI], 0.15-0.65; P = .0171) and increased its tmax from 0.5 (range, 0.50-1.5) to 1.0 hour (range, 0.50-4.0; P = .010). The AUC 0-1.5 of morphine-6-glucuronide (M6G) was reduced by 84% (0.16; 90% CI, 0.07-0.37; P = .0025) and maximum plasma concentration ( Cmax ) by 43% (0.57; 90% CI, 0.40-0.81; P = .0155), while its tmax was increased from 1.5 (range, 1.0-2.0) to 4.0 (range, 1.0-8.0; P = .0094) hours by S-ketamine. Similarly, the AUC 0-1.5 of morphine-3-glucuronide (M3G) was reduced by 85% (0.15; 90% CI, 0.05-0.43; P = .0083), and tmax increased from 1.0 (range, 0.5-1.5) to 4.0 hours (range, 1.0-8.0; P = .0063). In addition, the M6G-to-morphine and M3G-to-morphine metabolic AUC ratios were decreased by 47% (0.53; 90% CI, 0.39-0.71; P = .0033) and 52% (0.48; 90% CI, 0.27-0.85; P = .0043) during 0 to 1.5 hours and by 15% (0.85; 90% CI, 0.78-0.92; P = .0057) and 10% (0.90; 90% CI, 0.83-0.98; P = .0468) during 0 to 24 hours, respectively. One participant was excluded from the analyses due to vomiting in the S-ketamine phase. CONCLUSIONS Intravenous S-ketamine inhibited the metabolism of oral morphine and delayed its absorption, resulting in a net reduction in the exposure to morphine during the first 1.5 hours. Intravenous S-ketamine may delay the absorption and impair the efficacy of orally administered analgesics and other drugs.
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Affiliation(s)
- Terhi J. Lohela
- From the Department of Clinical Pharmacology, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Individualized Drug Therapy Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Satu Poikola
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Individualized Drug Therapy Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Daniel Backmansson
- From the Department of Clinical Pharmacology, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Individualized Drug Therapy Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Outi Lapatto-Reiniluoto
- From the Department of Clinical Pharmacology, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- HUS Pharmacy, Helsinki University Hospital, Helsinki, Finland
| | - Janne T. Backman
- From the Department of Clinical Pharmacology, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Individualized Drug Therapy Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Klaus T. Olkkola
- Department of Anaesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Individualized Drug Therapy Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Tuomas O. Lilius
- From the Department of Clinical Pharmacology, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Individualized Drug Therapy Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Finnish Poison Information Center, Department of Emergency Medicine and Services, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
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Burns ML, Hilliard P, Vandervest J, Mentz G, Josifoski A, Varghese J, Fisher C, Kheterpal S, Shah N, Bicket MC. Variation in Intraoperative Opioid Administration by Patient, Clinician, and Hospital Contribution. JAMA Netw Open 2024; 7:e2351689. [PMID: 38227311 DOI: 10.1001/jamanetworkopen.2023.51689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2024] Open
Abstract
Importance The opioid crisis has led to scrutiny of opioid exposures before and after surgical procedures. However, the extent of intraoperative opioid variation and the sources and contributing factors associated with it are unclear. Objective To analyze attributable variance of intraoperative opioid administration for patient-, clinician-, and hospital-level factors across surgical and analgesic categories. Design, Setting, and Participants This cohort study was conducted using electronic health record data collected from a national quality collaborative database. The cohort consisted of 1 011 268 surgical procedures at 46 hospitals across the US involving 2911 anesthesiologists, 2291 surgeons, and 8 surgical and 4 analgesic categories. Patients without ambulatory opioid prescriptions or use history undergoing an elective surgical procedure between January 1, 2014, and September 11, 2020, were included. Data were analyzed from January 2022 to July 2023. Main Outcomes and Measures The rate of intraoperative opioid administration as a continuous measure of oral morphine equivalents (OMEs) normalized to patient weight and case duration was assessed. Attributable variance was estimated in a hierarchical structure using patient, clinician, and hospital levels and adjusted intraclass correlations (ICCs). Results Among 1 011 268 surgical procedures (mean [SD] age of patients, 55.9 [16.2] years; 604 057 surgical procedures among females [59.7%]), the mean (SD) rate of intraoperative opioid administration was 0.3 [0.2] OME/kg/h. Together, clinician and hospital levels contributed to 20% or more of variability in intraoperative opioid administration across all analgesic and surgical categories (adjusting for surgical or analgesic category, ICCs ranged from 0.57-0.79 for the patient, 0.04-0.22 for the anesthesiologist, and 0.09-0.26 for the hospital, with the lowest ICC combination 0.21 for anesthesiologist and hosptial [0.12 for the anesthesiologist and 0.09 for the hospital for opioid only]). Comparing the 95th and fifth percentiles of opioid administration, variation was 3.3-fold among anesthesiologists (surgical category range, 2.7-fold to 7.7-fold), 4.3-fold among surgeons (surgical category range, 3.4-fold to 8.0-fold), and 2.2-fold among hospitals (surgical category range, 2.2-fold to 4.3-fold). When adjusted for patient and surgical characteristics, mean (square error mean) administration was highest for cardiac surgical procedures (0.54 [0.56-0.52 OME/kg/h]) and lowest for orthopedic knee surgical procedures (0.19 [0.17-0.21 OME/kg/h]). Peripheral and neuraxial analgesic techniques were associated with reduced administration in orthopedic hip (51.6% [95% CI, 51.4%-51.8%] and 60.7% [95% CI, 60.5%-60.9%] reductions, respectively) and knee (48.3% [95% CI, 48.0%-48.5%] and 60.9% [95% CI, 60.7%-61.1%] reductions, respectively) surgical procedures, but reduction was less substantial in other surgical categories (mean [SD] reduction, 13.3% [8.8%] for peripheral and 17.6% [9.9%] for neuraxial techniques). Conclusions and Relevance In this cohort study, clinician-, hospital-, and patient-level factors had important contributions to substantial variation of opioid administrations during surgical procedures. These findings suggest the need for a broadened focus across multiple factors when developing and implementing opioid-reducing strategies in collaborative quality-improvement programs.
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Affiliation(s)
- Michael L Burns
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor
| | - Paul Hilliard
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor
| | - John Vandervest
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor
| | - Graciela Mentz
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor
| | - Ace Josifoski
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor
| | - Jomy Varghese
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor
| | - Clark Fisher
- Department of Anesthesiology, Yale School of Medicine, New Haven, Connecticut
| | - Sachin Kheterpal
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor
| | - Nirav Shah
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor
| | - Mark C Bicket
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor
- Opioid Prescribing Engagement Network, Institute for Healthcare Innovation and Policy, University of Michigan, Ann Arbor
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Grant MC, Chappell D, Gan TJ, Manning MW, Miller TE, Brodt JL. Pain management and opioid stewardship in adult cardiac surgery: Joint consensus report of the PeriOperative Quality Initiative and the Enhanced Recovery After Surgery Cardiac Society. J Thorac Cardiovasc Surg 2023; 166:1695-1706.e2. [PMID: 36868931 DOI: 10.1016/j.jtcvs.2023.01.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 01/07/2023] [Accepted: 01/19/2023] [Indexed: 01/30/2023]
Abstract
BACKGROUND Opioid-based anesthesia and analgesia is a traditional component of perioperative care for the cardiac surgery patient. Growing enthusiasm for Enhanced Recovery Programs (ERPs) coupled with evidence of potential harm associated with high-dose opioids suggests that we reconsider the role of opioids in cardiac surgery. METHODS An interdisciplinary North American panel of experts, using a structured appraisal of the literature and a modified Delphi method, derived consensus recommendations for optimal pain management and opioid stewardship for cardiac surgery patients. Individual recommendations are graded based on the strength and level of evidence. RESULTS The panel addressed 4 main topics: the harms associated with historical opioid use, the benefits of more targeted opioid administration, the use of nonopioid medications and techniques, and patient and provider education. A key principle that emerged is that opioid stewardship should apply to all cardiac surgery patients, entailing judicious and targeted use of opioids to achieve optimal analgesia with the fewest potential side effects. The process resulted in the promulgation of 6 recommendations regarding pain management and opioid stewardship in cardiac surgery, focused on avoiding the use of high-dose opioids, as well as encouraging more widespread application of foundational aspects of ERPs, such as the use of multimodal nonopioid medications and regional anesthesia techniques, formal patient and provider education, and structured system-level opioid prescription practices. CONCLUSIONS Based on the available literature and expert consensus, there is an opportunity to optimize anesthesia and analgesia for cardiac surgery patients. Although additional research is needed to establish specific strategies, core principles of pain management and opioid stewardship apply to the cardiac surgery population.
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Affiliation(s)
- Michael C Grant
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, Md
| | | | - Tong J Gan
- Department of Anesthesiology, Stony Brook University Renaissance School of Medicine, Stony Brook, NY
| | - Michael W Manning
- Department of Anesthesiology, Duke University School of Medicine, Durham, NC
| | - Timothy E Miller
- Department of Anesthesiology, Duke University School of Medicine, Durham, NC
| | - Jessica L Brodt
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Palo Alto, Calif.
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Magoon R, Jose J. Perioperative pain management in the current times: Drugs and blocks matter, but what beyond? Ann Card Anaesth 2023; 26:468-469. [PMID: 37861589 PMCID: PMC10691581 DOI: 10.4103/aca.aca_41_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/14/2023] [Accepted: 04/25/2023] [Indexed: 10/21/2023] Open
Affiliation(s)
- Rohan Magoon
- Department of Anaesthesia, Atal Bihari Vajpayee Institute of Medical Sciences (ABVIMS) and Dr. Ram Manohar Lohia Hospital, New Delhi, India
| | - Jes Jose
- Department of Cardiac Anesthesiology, Sri Jayadeva Institute of Cardiovascular Sciences and Research, Bengaluru, Karnataka, India
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Ramírez-Paesano C, Rodiera Clarens C, Sharp Segovia A, Coila Bustinza A, Rodiera Olive J, Juanola Galceran A. Perioperative opioid-minimization approach as a useful protocol in the management of patients with Ehlers-Danlos syndrome-hypermobility type, craniocervical instability and severe chronic pain who are to undergo occipito-cervical fixation. Orphanet J Rare Dis 2023; 18:214. [PMID: 37491286 PMCID: PMC10369693 DOI: 10.1186/s13023-023-02829-9] [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: 04/27/2022] [Accepted: 07/12/2023] [Indexed: 07/27/2023] Open
Abstract
Patients suffering from connective tissue disorders like Ehlers-Danlos syndrome hypermobility type/joint hypermobility syndrome (EDS-HT/JHS) may be affected by craniocervical instability (CCI). These patients experience myalgic encephalomyelitis, chronic fatigue, depression, extreme occipital-cervical pain, and severe widespread pain that is difficult to relieve with opioids. This complex and painful condition can be explained by the development of chronic neuroinflammation, opioid-induced hyperalgesia, and central sensitization. Given the challenges in treating such severe physical pain, we evaluated all the analgesic methods previously used in the perioperative setting, and updated information was presented. It covers important physiopathological aspects for the perioperative care of patients with EDS-HT/JHS and CCI undergoing occipital-cervical/thoracic fixation/fusion. Moreover, a change of paradigm from the current opioid-based management of anesthesia/analgesia in these patients to the perioperative opioid minimization strategies used by the authors was analyzed and proposed as follow-up considerations from our previous case series. These strategies are based on total-intravenous opioid-free anesthesia, multimodal analgesia, and a postoperative combination of anti-hyperalgesic coadjuvants (lidocaine, ketamine, and dexmedetomidine) with an opioid-sparing effect.
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Affiliation(s)
- Carlos Ramírez-Paesano
- Servei Central d'Anestesiología (Anestalia), Centro Médico Teknon, Grupo Quironsalud, Carrer Vilana 12, 08022, Barcelona, Spain.
| | - Claudia Rodiera Clarens
- Servei Central d'Anestesiología (Anestalia), Centro Médico Teknon, Grupo Quironsalud, Carrer Vilana 12, 08022, Barcelona, Spain
| | - Allan Sharp Segovia
- Servei Central d'Anestesiología (Anestalia), Centro Médico Teknon, Grupo Quironsalud, Carrer Vilana 12, 08022, Barcelona, Spain
| | - Alan Coila Bustinza
- Servei Central d'Anestesiología (Anestalia), Centro Médico Teknon, Grupo Quironsalud, Carrer Vilana 12, 08022, Barcelona, Spain
| | - Josep Rodiera Olive
- Servei Central d'Anestesiología (Anestalia), Centro Médico Teknon, Grupo Quironsalud, Carrer Vilana 12, 08022, Barcelona, Spain
| | - Albert Juanola Galceran
- Servei Central d'Anestesiología (Anestalia), Centro Médico Teknon, Grupo Quironsalud, Carrer Vilana 12, 08022, Barcelona, Spain
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Ershoff B. Intraoperative hydromorphone decreases postoperative pain: an instrumental variable analysis. Br J Anaesth 2023:S0007-0912(23)00127-7. [PMID: 37055277 DOI: 10.1016/j.bja.2023.03.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 02/20/2023] [Accepted: 03/13/2023] [Indexed: 04/15/2023] Open
Abstract
BACKGROUND Intraoperative administration of short-acting opioids might lead to increased postoperative pain and opioid requirements. There are few data describing the effects of intermediate-duration opioids such as hydromorphone on these outcomes. We have previously shown that a switch from a 2 mg to a 1 mg vial of hydromorphone was associated with decreased intraoperative dose administration. As presentation dose affected intraoperative hydromorphone administration and was unrelated to other policy changes, it could serve as an instrumental variable, assuming significant secular trends were not present during the study period. METHODS In this observational cohort study of patients who received intraoperative hydromorphone (n=6750), an instrumental variable analysis was used to evaluate whether intraoperative hydromorphone administration affected postoperative pain scores and opioid administration. Before July 2017, hydromorphone was available as a 2-mg unit dose. From July 1, 2017 to November 20, 2017, hydromorphone was only available in a 1-mg unit dose. A two-stage least squares regression analysis was used to estimate causal effects. RESULTS A 0.2-mg increase in intraoperative hydromorphone administration caused a decrease in admission PACU pain scores (mean difference, -0.8; 95% confidence interval, -1.2 to -0.4; P<0.001) and decreased maximum and time-weighted mean pain scores over 2 days postoperatively, without increased opioid administration. CONCLUSIONS This study suggests that intraoperative administration of intermediate-duration opioids does not cause the same effects as short-acting opioids with respect to postoperative pain. Instrumental variables can be used to estimate causal effects using observation data when unmeasured confounding is present.
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Affiliation(s)
- Brent Ershoff
- Department of Anesthesiology and Perioperative Medicine, University of California, Los Angeles, CA, USA.
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Yeh PH, Yeh HW, Yang SF, Wang YH, Chou MC, Tsai PK, Yeh CB. No association of postoperative opioid usage with long-term surgery outcomes in patients with liver cancer: a population-based retrospective cohort study. Pain 2023; 164:848-854. [PMID: 36083196 DOI: 10.1097/j.pain.0000000000002776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 08/22/2022] [Indexed: 11/25/2022]
Abstract
ABSTRACT Hepatocellular carcinoma (HCC) is a fatal cancer worldwide, and surgical resection remains the standard treatment. Postoperative opioid prescription has been believed to affect cancer recurrence through complex biological pathways. We conducted a retrospective cohort study using the Longitudinal Health Insurance Database of Taiwan to evaluate the relationship between postoperative opioid use and long-term surgical outcomes of patients with HCC. This study had a retrospective cohort design. In total, 812 patients older than 20 years who underwent hepatectomy because of HCC were included. The exposure group comprised patients who used opioids during hospitalization postoperatively. The comparison group included those who never used opioids during hospitalization postoperatively. A Cox proportional hazards model was used to evaluate the overall survival or recurrence-free survival rate between the opioid group and the nonopioid group. A total of 530 patients received opioids postoperatively and 282 patients did not. The hazard ratios of overall survival and recurrence-free survival were 1.10 (95% confidence interval [CI], 0.85-1.41) and 1.15 (95% CI, 0.91-1.46), respectively. Total postoperative opioids were converted into oral morphine milligram equivalents and then divided into 3 equal subgroups: low dose, <40 mg; medium dose, 40 to 144 mg; and high dose, ≥145 mg. The hazard ratios of overall survival were 0.88 (95% CI, 0.63-1.24) for the low-dose group, 1.27 (95% CI, 0.92-1.74) for the medium-dose group, and 1.14 (95% CI, 0.83-1.58) for the high-dose group. Postoperative opioids do not affect overall and recurrence-free survival in patients undergoing hepatectomy or liver transplantation because of HCC. Cancer recurrence should not be a clinical concern regarding postoperative opioid prescription.
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Affiliation(s)
- Pin-Hung Yeh
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Anesthesiology, Changhua Christian Hospital, Changhua, Taiwan
| | - Han-Wei Yeh
- School of Medicine, Chang Gung University, Taoyuan City, Taiwan
- Medical Education Department, Chang Gung Memorial Hospital, Linkou, Taoyuan City, Taiwan
| | - Shun-Fa Yang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Yu-Hsun Wang
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Ming-Chih Chou
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Surgery, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Ping-Kun Tsai
- Department of Internal Medicine, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung, Taiwan
| | - Chao-Bin Yeh
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Emergency Medicine, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Emergency Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan
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Ketamine Compared with Fentanyl for Surgical Abortion: A Randomized Controlled Trial. Obstet Gynecol 2023; 141:227. [PMID: 36701626 DOI: 10.1097/aog.0000000000005041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 10/24/2022] [Indexed: 12/23/2022]
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Opioid-sparing anesthesia and patient-reported outcomes after open gynecologic surgery: a historical cohort study. Can J Anaesth 2022; 69:1477-1492. [PMID: 36224506 DOI: 10.1007/s12630-022-02336-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 04/13/2022] [Accepted: 05/30/2022] [Indexed: 11/06/2022] Open
Abstract
PURPOSE Dexmedetomidine and ketamine may be administered intraoperatively as continuous infusions to provide opioid-sparing anesthesia. Recent evidence has yielded controversial results regarding the impact of opioid-free anesthesia on postoperative complications, and there is a gap in knowledge regarding patient-reported outcomes (PROs). This study aimed to determine the impact of opioid-sparing anesthesia and opioid-based anesthesia on PROs among gynecologic patients within an enhanced recovery after surgery (ERAS) program. METHODS We formed a single-center historical cohort from patients enrolled in another study who underwent open gynecologic surgery on an ERAS program from November 2014 to December 2020 (n = 2,095). We identified two cohorts based on the type of balanced anesthesia administered: 1) opioid-sparing anesthesia defined as the continuous infusion of dexmedetomidine and ketamine (adjuvants) during surgery or 2) opioid-based anesthesia (no adjuvants). We measured the quality of postoperative recovery using the MD Anderson Symptom Inventory (MDASI), a 29-item validated tool that was administered preoperatively, daily while admitted, and weekly after discharge until week 6. The primary outcome was interference with walking. We matched both cohorts and used a multilevel linear mixed-effect model to evaluate the effect of opioid-sparing anesthesia on the primary outcome. RESULTS In total, 498 patients were eligible (159 in the opioid-sparing anesthesia cohort and 339 in the opioid-based anesthesia cohort), of whom 149 matched pairs were included in the final analysis. Longitudinal assessment showed no significant or clinically important difference in interference with walking (P = 0.99), general activity (P = 0.99), or other PROs between cohorts. Median [interquartile range (IQR)] intraoperative opioid administration (expressed as morphine milligram equivalents [MME]) among matched patients in the opioid-sparing anesthesia cohort was 30 [25-55] mg vs 58 [8-70] mg in the opioid-based anesthesia cohort (P < 0.01). Patients in the opioid-sparing anesthesia cohort had a lower opioid consumption in the postanesthesia care unit than those in the opioid-based anesthesia cohort (MME, 3 [0-10] mg vs 5 [0-15] mg; P < 0.01), but there was no significant difference between cohorts in total postoperative opioid consumption (MME, 23 [0-94] mg vs 35 [13-95] mg P = 0.053). CONCLUSIONS In this single-center historical cohort study, opioid-sparing anesthesia had no significant or clinically important effects on interference with walking or other PROs in patients undergoing gynecologic surgery compared with opioid-based anesthesia. Opioid-sparing anesthesia was associated with less short-term opioid consumption than opioid-based anesthesia.
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Abstract
Appropriate perioperative pain control is essential to aid in patients' recovery after surgery; however, acute postsurgical pain remains poorly treated and there continues to be an overreliance on opiates. Perioperative pain control starts in the operating room, and opiate-free anesthesia (OFA), where no opiates are used intraoperatively, has been proposed as a feasible strategy to further minimize opiates in the perioperative period. In this article, we address the potential benefits and shortcomings of OFA, while exploring tools available to accomplish multimodal anesthesia and ideally OFA, and the evidence behind the techniques proposed.
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Effects of Intraoperative Opioid Administration on Postoperative Pain and Pain Threshold: A Randomized Controlled Study. J Clin Med 2022; 11:jcm11195587. [PMID: 36233454 PMCID: PMC9572642 DOI: 10.3390/jcm11195587] [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: 09/08/2022] [Revised: 09/20/2022] [Accepted: 09/21/2022] [Indexed: 12/05/2022] Open
Abstract
Fentanyl and short-acting remifentanil are often used in combination. We evaluated the effect of intraoperative opioid administration on postoperative pain and pain thresholds when the two drugs were used. Patients who underwent gynecological laparoscopic surgery were randomly assigned into two groups (15 patients each) to receive either sufficient (group A) or minimum (group B) fentanyl (maximum estimated effect site concentration: A: 7.86 ng/mL, B: 1.5 ng/mL). The estimated effect site concentration at the end of surgery was adjusted to the same level (1 ng/mL). Patients in both groups also received continuous intravenous remifentanil during surgery. The primary outcome was the pressure pain threshold, as evaluated by a pressure algometer 3 h postoperatively. The pressure pain threshold at 3 h postoperatively was 51.1% (95% CI: [44.4–57.8]) in group A and 56.6% [49.5–63.6] in group B, assuming a preoperative value of 100% (p = 0.298). There were no significant differences in pressure pain threshold and numeric rating scale scores between the groups after surgery. The pain threshold decreased significantly in both groups at 3 h postoperatively compared to preoperative values, and recovered at 24 h. Co-administration of both opioids caused hyperalgesia regardless of fentanyl dose.
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Abstract
Opioid-free anesthesia is a multimodal anesthesia aimed at avoiding the negative impact of intraoperative opioid on patient's postoperative outcomes. It is based on the physiology of pathways involved in intraoperative nociception. It has been shown to be feasible but the literature is still scarce on the clinically meaningful benefits as well as on the side effects and/or complications that might be associated with it. Moreover, most studies involved abdominal and/or bariatric surgery. Procedure-specific studies are lacking, especially in orthopedics.
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Affiliation(s)
- Helene Beloeil
- Anesthesia and Intensive Care Department, Univ Rennes, Inserm CIC 1414, COSS 1242, CHU Rennes, Rennes Cedex 35000, France.
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Zaslansky R. Status quo of pain-related patient reported outcomes and perioperative pain management in 10 415 patients from 10 countries: analysis of registry data. Eur J Pain 2022; 26:2120-2140. [PMID: 35996995 DOI: 10.1002/ejp.2024] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 08/08/2022] [Accepted: 08/14/2022] [Indexed: 11/11/2022]
Abstract
BACKGROUND Postoperative pain is common at the global level, despite considerable attempts for improvement, reflecting the complexity of offering effective pain relief. In this study, clinicians from Mexico, China, and eight European countries evaluated perioperative pain practices and patient-reported outcomes (PROs) in their hospitals as a basis for carrying out quality improvement (QI) projects in each country. METHODS PAIN OUT, an international perioperative pain registry, provided standardized methodology for assessing management and multi-dimensional PROs on the first postoperative day, in patients undergoing orthopedic, general surgery, obstetric & gynecology or urological procedures. RESULTS Between 2017-2019, data obtained from 10,415 adult patients in 105 wards, qualified for analysis. At the ward level: 50% (median) of patients reported worst pain intensities ≥7/10 NRS, 25% spent ≥50% of the time in severe pain and 20-34% reported severe ratings for pain-related functional and emotional interference. Demographic variables, country and surgical discipline explained a small proportion of the variation in the PROs, leaving about 88% unexplained. Most treatment processes varied considerably between wards. Ward effects accounted for about 7% and 32% of variation in PROs and treatment processes, respectively. CONCLUSIONS This comprehensive evaluation demonstrates that many patients in this international cohort reported poor pain-related PROs on the first postoperative day. PROs and treatments varied greatly. Most of the variance of the PROs could not be explained. The findings served as a basis for devising and implementing QI programs in participating hospitals.
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Affiliation(s)
- Ruth Zaslansky
- Department of Anesthesiology and Intensive Care, Jena University Hospital, Jena, Germany
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Potential responses to remifentanil supply shortages. Br J Anaesth 2022; 129:649-651. [DOI: 10.1016/j.bja.2022.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/04/2022] [Accepted: 08/05/2022] [Indexed: 11/19/2022] Open
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Bicket MC, Waljee J, Hilliard P. Nonopioid Directives. JAMA HEALTH FORUM 2022; 3:e221356. [DOI: 10.1001/jamahealthforum.2022.1356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Mark C. Bicket
- Opioid Prescribing Engagement Network, Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor
- Department of Anesthesiology, University of Michigan, Ann Arbor
| | - Jennifer Waljee
- Opioid Prescribing Engagement Network, Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor
- Department of Surgery, University of Michigan, Ann Arbor
| | - Paul Hilliard
- Department of Anesthesiology, University of Michigan, Ann Arbor
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Hsu M, Kinthala S, Huang J, Philip J, Saththasivam P, Porter B. Successful Management of a Patient With a History of Postoperative Delirium Undergoing Cardiac Surgery With an Erector Spinae Plane Block and Multimodal Analgesia: A Case Report. Cureus 2022; 14:e25504. [PMID: 35800818 PMCID: PMC9243216 DOI: 10.7759/cureus.25504] [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] [Accepted: 05/25/2022] [Indexed: 11/05/2022] Open
Abstract
Perioperative delirium is an acute confusional state with fluctuating levels of consciousness, which can be precipitated by opioid-based anesthetics and inadequate pain control, especially in patients undergoing cardiac surgery. We seek to minimize opioid usage to avoid postoperative delirium in a patient with multiple risk factors undergoing aortic valve replacement. We used cardiac enhanced recovery after surgery protocols (ERAS-C), which include multimodal analgesia and regional anesthesia via bilateral erector spinae plane (ESP) blocks. Our observations suggest that bilateral ESP blocks and cardiac ERAS protocols offer a potential option to manage pain and control risk factors in patients at high risk of postoperative delirium undergoing cardiac surgery.
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Viscusi ER. A critical review of oliceridine injection as an IV opioid analgesic for the management of severe acute pain. Expert Rev Neurother 2022; 22:419-426. [PMID: 35502668 DOI: 10.1080/14737175.2022.2072731] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Oliceridine is a G protein-selective (biased) agonist at the μ-opioid receptor, with less recruitment of β-arrestin-2, a signaling pathway associated with opioid-related adverse events. Nonclinical evidence showed that oliceridine elicits a rapid systemic analgesic effect while attenuating opioid-related adverse events. AREAS COVERED Three pivotal studies in patients with moderate to severe acute pain, including two randomized, double-blind, placebo- and morphine-controlled efficacy studies following either orthopedic surgery-bunionectomy or plastic surgery-abdominoplasty; and an open-label safety study following a surgical procedure or due to a medical condition. EXPERT OPINION Poorly controlled acute postoperative pain is associated with poorer recovery, longer hospitalization, increased complications, and worse healthcare outcomes. Recently, oliceridine intravenous injection was approved for use in adults for the management of acute pain severe enough to require an intravenous opioid analgesic and for whom alternative treatments are inadequate. Introduction of this new IV opioid provides a valuable option to manage postoperative pain.
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Affiliation(s)
- Eugene R Viscusi
- Department of Anesthesiology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA
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End-tidal Anesthetic Concentration: Monitoring, Interpretation, and Clinical Application. Anesthesiology 2022; 136:985-996. [PMID: 35483048 DOI: 10.1097/aln.0000000000004218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Age-adjusted fraction of minimum alveolar concentration derived from end-tidal anesthetic partial pressure measurement remains a useful drug advisory display to help prevent awareness if interpreted with proper understanding of the quantal and probabilistic nature of minimum alveolar concentration, semantics, drug interactions, and hysteresis.
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Abstract
This review summarizes current evidence related to perioperative opioid prescription fulfillment and use and discusses the role of personalized anesthesia care in mitigating opioid-related harms without compromising analgesia.
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Affiliation(s)
- Daniel B. Larach
- Department of Anesthesiology, Vanderbilt University Medical Center (Nashville, TN)
| | - Jennifer M. Hah
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine (Stanford, CA)
| | - Chad M. Brummett
- Department of Anesthesiology, University of Michigan Medical School (Ann Arbor, MI)
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Simpson KN, Fossler MJ, Wase L, Demitrack MA, Wandstrat TL. Budget impact and pharmacy costs with targeted use of oliceridine for postsurgical pain in patients at high risk of opioid-related adverse events. Expert Rev Pharmacoecon Outcomes Res 2022; 22:671-681. [PMID: 35129031 DOI: 10.1080/14737167.2022.2038137] [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] [Indexed: 11/04/2022]
Abstract
BACKGROUND Oliceridine, a new class of μ-opioid receptor agonist, may be associated with fewer opioid-related adverse events (ORAEs) due to its unique mechanism of action. Thus, it may provide a cost-effective alternative to conventional opioids such as morphine. PATIENTS AND METHODS Using a decision tree with a 24-hour time horizon, we calculated costs for medication and management of the three most common AEs (oxygen saturation <90%, vomiting, somnolence) following postoperative oliceridine or morphine in high-risk patients. Costs were enumerated as differences in cost of analgesics and resource utilization in the first 24 hours post-surgery. An economic model compared expected AEs and costs in a blended cohort where elderly/obese patients at higher risk for ORAEs received oliceridine while those presumed to be at lower risk received morphine with a cohort that received morphine alone. RESULTS In high-risk patients, use of oliceridine resulted in overall savings of $363,944 (in 1,000 patients). Implementing a targeted approach of oliceridine utilization in patients with high risk for ORAEs can save a typical hospital system $122,296 in total cost of care. CONCLUSION Use of oliceridine in postoperative care among patients at high risk provides a favorable health economic benefit compared to the use of morphine.
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Affiliation(s)
- Kit N Simpson
- Medical University of South Carolina, Charleston, South Carolina, USA
| | | | - Linda Wase
- Trevena, Inc, Chesterbrook, Pennsylvania, USA
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Macintyre PE, Quinlan J, Levy N, Lobo DN. Current Issues in the Use of Opioids for the Management of Postoperative Pain: A Review. JAMA Surg 2022; 157:158-166. [PMID: 34878527 DOI: 10.1001/jamasurg.2021.6210] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Importance Uncontrolled and indiscriminate prescribing of opioids has led to an opioid crisis that started in North America and spread throughout high-income countries. The aim of this narrative review was to explore some of the current issues surrounding the use of opioids in the perioperative period, focusing on drivers that led to escalation of use, patient harms, the move away from using self-reported pain scores alone to assess adequacy of analgesia, concerns about the routine use of controlled-release opioids for the management of acute pain, opioid-free anesthesia and analgesia, and prescription of opioids on discharge from hospital. Observations The origins of the opioid crisis are multifactorial and may include good intentions to keep patients pain free in the postoperative period. Assessment of patient function may be better than unidimensional numerical pain scores to help guide postoperative analgesia. Immediate-release opioids can be titrated more easily to match analgesic requirements. There is currently no good evidence to show that opioid-free anesthesia and analgesia affects opioid prescribing practices or the risk of persistent postoperative opioid use. Attention should be paid to discharge opioid prescribing as repeat and refill prescriptions are risk-factors for persistent postoperative opioid use. Opioid stewardship is paramount, and many governments are passing legislation, while statutory bodies and professional societies are providing advice and guidance to help mitigate the harm caused by opioids. Conclusions and Relevance Opioids remain a crucial part of many patients' journey from surgery to full recovery. The last few decades have shown that unfettered opioid use puts patients and societies at risk, so caution is needed to mitigate those dangers. Opioid stewardship provides a multilayered structure to allow continued safe use of opioids as part of broad pain management strategies for those patients who benefit from them most.
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Affiliation(s)
- Pamela E Macintyre
- Department of Anaesthesia, Pain Medicine and Hyperbaric Medicine, Royal Adelaide Hospital and Discipline of Acute Care Medicine, Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Jane Quinlan
- Nuffield Department of Anaesthetics, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - Nicholas Levy
- Department of Anaesthesia and Perioperative Medicine, West Suffolk NHS Foundation Trust, Bury St Edmunds, Suffolk, United Kingdom
| | - Dileep N Lobo
- Gastrointestinal Surgery, Nottingham Digestive Diseases Centre, National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom
- MRC Versus Arthritis Centre for Musculoskeletal Ageing Research, School of Life Sciences, University of Nottingham, Queen's Medical Centre, Nottingham, United Kingdom
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Kharasch ED, Clark JD, Adams JM. Opioids and Public Health: The Prescription Opioid Ecosystem and Need for Improved Management. Anesthesiology 2022; 136:10-30. [PMID: 34874401 PMCID: PMC10715730 DOI: 10.1097/aln.0000000000004065] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
While U.S. opioid prescribing has decreased 38% in the past decade, opioid deaths have increased 300%. This opioid paradox is poorly recognized. Current approaches to opioid management are not working, and new approaches are needed. This article reviews the outcomes and shortcomings of recent U.S. opioid policies and strategies that focus primarily or exclusively on reducing or eliminating opioid prescribing. It introduces concepts of a prescription opioid ecosystem and opioid pool, and it discusses how the pool can be influenced by supply-side, demand-side, and opioid returns factors. It illuminates pressing policy needs for an opioid ecosystem that enables proper opioid stewardship, identifies associated responsibilities, and emphasizes the necessity of making opioid returns as easy and common as opioid prescribing, in order to minimize the size of the opioid pool available for potential diversion, misuse, overdose, and death. Approaches are applicable to opioid prescribing in general, and to opioid prescribing after surgery.
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Affiliation(s)
- Evan D Kharasch
- Department of Anesthesiology, Duke University School of Medicine, Durham, North Carolina
| | - J David Clark
- the Anesthesiology Service, Veterans Affairs Palo Alto Health Care System, Palo Alto, California
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Oliceridine Exhibits Improved Tolerability Compared to Morphine at Equianalgesic Conditions: Exploratory Analysis from Two Phase 3 Randomized Placebo and Active Controlled Trials. Pain Ther 2021; 10:1343-1353. [PMID: 34351590 PMCID: PMC8586048 DOI: 10.1007/s40122-021-00299-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 07/19/2021] [Indexed: 01/12/2023] Open
Abstract
INTRODUCTION In the management of postoperative acute moderate-to-severe pain, opioids remain an important component. However, conventional opioids have a narrow therapeutic index and are associated with dose-limiting opioid-related adverse events (ORAEs) that can result in worse patient outcomes. Oliceridine, a new intravenous µ-opioid receptor agonist, is shown in nonclinical studies to be biased for G protein signaling (achieving analgesia) with limited recruitment of β-arrestin (associated with ORAEs). In two phase 3 randomized controlled studies of patients with moderate-to-severe acute pain following hard or soft tissue surgery, in which analgesia was measured using Sum of Pain Intensity Differences (SPID) from baseline over 48 and 24 h (SPID-48 and -24 respectively, oliceridine at demand doses of 0.1, 0.35, or 0.5 mg was highly effective compared to placebo, with a favorable safety profile compared to morphine. This exploratory analysis was conducted to determine whether the safety benefits seen with oliceridine persisted when adjusted for equal levels of analgesia compared to morphine. METHODS Presence of at least one treatment-emergent ORAE (based on Medical Dictionary for Regulatory Activities [MedDRA]-coded events: hypoxemia, nausea, vomiting, sedation, pruritus, or dizziness) was used as the composite safety endpoint. A logistic regression model was utilized to compare oliceridine (pooled regimens) versus morphine, after controlling for analgesia (using SPID-48 or SPID-24 with pre-rescue scores carried forward 6 h). This analysis excluded patients receiving placebo and was repeated for each study and for pooled data. RESULTS At a given level of SPID-48 or SPID-24, patients receiving oliceridine were less likely to experience the composite safety endpoint. Although not statistically significant at the 0.05 level in the soft tissue model, the odds ratio (OR) showed a consistent numerical trend for oliceridine, being approximately half that observed with morphine in both the hard (OR 0.499; 95% confidence interval [CI] 0.255, 0.976; p = 0.042) and soft (OR 0.542; 95% CI 0.250, 1.175; p = 0.121) tissue studies. Results from the pooled data were consistent with those observed in the individual studies (OR 0.507; 95% CI 0.304, 0.844; p = 0.009). CONCLUSION Findings from this exploratory analysis suggest that at comparable levels of analgesia, patients receiving oliceridine were less likely to experience the composite safety endpoint consisting of ORAEs compared to patients treated with morphine. Oliceridine Exhibits Improved Tolerability Compared to Morphine at Equianalgesic Conditions: Exploratory Analysis from Two Phase 3 Randomized Placebo and Active Controlled Trials- A Video (MP4 99188 kb).
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Krakowski JC, Hallman MJ, Smeltz AM. Persistent Pain After Cardiac Surgery: Prevention and Management. Semin Cardiothorac Vasc Anesth 2021; 25:289-300. [PMID: 34416847 PMCID: PMC8669213 DOI: 10.1177/10892532211041320] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Persistent postoperative pain (PPP) after cardiac surgery is a significant complication that negatively affects patient quality of life and increases health care system burden. However, there are no standards or guidelines to inform how to mitigate these effects. Therefore, in this review, we will discuss strategies to prevent and manage PPP after cardiac surgery. Adequate perioperative analgesia may prove instrumental in the prevention of PPP. Although opioids have historically been the primary analgesic approach to cardiac surgery, an opioid-sparing strategy may prove advantageous in reducing side effects, avoiding secondary hyperalgesia, and decreasing risk of PPP. Implementing a multimodal analgesic plan using alternative medications and regional anesthetic techniques may offer superior efficacy while reducing adverse effects.
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Affiliation(s)
| | | | - Alan M Smeltz
- University of North Carolina at Chapel Hill, NC, USA
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Salomé A, Harkouk H, Fletcher D, Martinez V. Opioid-Free Anesthesia Benefit-Risk Balance: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. J Clin Med 2021; 10:jcm10102069. [PMID: 34065937 PMCID: PMC8150912 DOI: 10.3390/jcm10102069] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/05/2021] [Accepted: 05/06/2021] [Indexed: 01/05/2023] Open
Abstract
Opioid-free anesthesia (OFA) is used in surgery to avoid opioid-related side effects. However, uncertainty exists in the balance between OFA benefits and risks. We searched for randomized controlled trials (RCTs) comparing OFA to opioid-based anesthesia (OBA) in five international databases. The co-primary outcomes were postoperative acute pain and morphine consumption at 2, 24, and 48 h. The secondary outcomes were the incidence of postoperative chronic pain, hemodynamic tolerance, severe adverse effects, opioid-related adverse effects, and specific adverse effects related to substitution drugs. Overall, 33 RCTs including 2209 participants were assessed. At 2 h, the OFA groups had lower pain scores at rest MD (0.75 (−1.18; −0.32)), which did not definitively reach MCID. Less morphine was required in the OFA groups at 2 and 24 h, but with very small reductions: 1.61 mg (−2.69; −0.53) and −1.73 mg (p < 0.05), respectively, both not reaching MCID. The reduction in PONV in the OFA group in the PACU presented an RR of 0.46 (0.38, 0.56) and an RR of 0.34 (0.21; 0.56), respectively. Less sedation and shivering were observed in the OFA groups with an SMD of −0.81 (−1.05; −0.58) and an RR of 0.48 (0.33; 0.70), respectively. Quantitative analysis did not reveal differences between the hemodynamic outcomes, although severe side effects have been identified in the literature. No clinically significant benefits were observed with OFA in terms of pain and opioid use after surgery. A clear benefit of OFA use was observed with respect to a reduction in PONV. However, more data on the safe use of OFAs should be collected and caution should be taken in the development of OFA.
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Affiliation(s)
- Arthur Salomé
- Service d’anesthésie, Hôpital Ambroise Paré et Raymond Poincaré, Boulogne Billancourt et Garches, Assistance Publique Hôpitaux de, 92380 Paris, France; (A.S.); (H.H.); (D.F.)
| | - Hakim Harkouk
- Service d’anesthésie, Hôpital Ambroise Paré et Raymond Poincaré, Boulogne Billancourt et Garches, Assistance Publique Hôpitaux de, 92380 Paris, France; (A.S.); (H.H.); (D.F.)
- Department of Anesthesia, Université Paris-Saclay, UVSQ, Inserm, LPPD, 92100 Boulogne, France
| | - Dominique Fletcher
- Service d’anesthésie, Hôpital Ambroise Paré et Raymond Poincaré, Boulogne Billancourt et Garches, Assistance Publique Hôpitaux de, 92380 Paris, France; (A.S.); (H.H.); (D.F.)
- Department of Anesthesia, Université Paris-Saclay, UVSQ, Inserm, LPPD, 92100 Boulogne, France
| | - Valeria Martinez
- Service d’anesthésie, Hôpital Ambroise Paré et Raymond Poincaré, Boulogne Billancourt et Garches, Assistance Publique Hôpitaux de, 92380 Paris, France; (A.S.); (H.H.); (D.F.)
- Department of Anesthesia, Université Paris-Saclay, UVSQ, Inserm, LPPD, 92100 Boulogne, France
- Correspondence: ; Tel.: +33-147107622
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