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Desai N, Pararajasingham S, Onwochei D, Albrecht E. Comparison of intravenous versus perineural dexamethasone as a local anaesthetic adjunct for peripheral nerve blocks in the lower limb: A meta-analysis and systematic review. Eur J Anaesthesiol 2024; 41:749-759. [PMID: 38988252 PMCID: PMC11377050 DOI: 10.1097/eja.0000000000002038] [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
BACKGROUND As a local anaesthetic adjunct, the systemic absorption of perineural dexamethasone in the lower limb could be restricted because of decreased vascularity when compared with the upper limb. OBJECTIVES To compare the pharmacodynamic characteristics of intravenous and perineural dexamethasone in the lower limb. DESIGN Systematic review of randomised controlled trials with meta-analysis. DATA SOURCES Systematic search of Central, Google Scholar, Ovid Embase and Ovid Medline to 18 July 2023. ELIGIBILITY CRITERIA Randomised controlled trials, which compared the intravenous with perineural administration of dexamethasone as a local anaesthetic adjunct in peripheral nerve blocks for surgery of the lower limb. RESULTS The most common peripheral nerve blocks were femoral, sciatic and ankle block. The local anaesthetic was long acting in all trials and the dose of dexamethasone was 8 mg in most trials. The primary outcome, the duration of analgesia, was investigated by all nine trials ( n = 546 patients). Overall, compared with intravenous dexamethasone, perineural dexamethasone increased the duration of analgesia from 19.54 to 22.27 h, a mean difference [95% confidence interval (CI) of 2.73 (1.07 to 4.38) h; P = 0.001, I2 = 87]. The quality of evidence was moderate owing to serious inconsistency. However, analysis based on the location of the peripheral nerve block, the type of local anaesthetic or the use of perineural adrenaline showed no difference in duration between intravenous and perineural dexamethasone. No differences were shown for any of the secondary outcomes related to efficacy and side effects. CONCLUSION In summary, moderate evidence supports the superiority of perineural dexamethasone over intravenous dexamethasone in prolonging the duration of analgesia. However, this difference is unlikely to be clinically relevant. Consideration of the perineural use of dexamethasone should recognise that this route of administration remains off label.
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Affiliation(s)
- Neel Desai
- From the Department of Anaesthesia, Guy's and St Thomas' NHS Foundation Trust, London, UK (ND, SP, DO) and Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland (EA)
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Flyger SSB, Sorenson S, Pingel L, Karlsen APH, Nørskov AK, Mathiesen O, Maagaard M. Primary outcomes and anticipated effect sizes in randomised clinical trials assessing adjuncts to peripheral nerve blocks: A scoping review. Acta Anaesthesiol Scand 2024. [PMID: 38978187 DOI: 10.1111/aas.14489] [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: 03/31/2024] [Revised: 05/29/2024] [Accepted: 06/18/2024] [Indexed: 07/10/2024]
Abstract
BACKGROUND Prolonging effects of adjuncts to local anaesthetics in peripheral nerve blocks have been demonstrated in randomised clinical trials. The chosen primary outcome and anticipated effect size have major impact on the clinical relevance of results in these trials. This scoping review aims to provide an overview of frequently used outcomes and anticipated effect sizes in randomised trials on peripheral nerve block adjuncts. METHODS For our scoping review, we searched MEDLINE, Embase and CENTRAL for trials assessing effects of adjuncts for peripheral nerve blocks published in 10 major anaesthesia journals. We included randomised clinical trials assessing adjuncts for single-shot ultrasound-guided peripheral nerve blocks, regardless of the type of interventional adjunct and control group, local anaesthetic used and anatomical localization. Our primary outcome was the choice of primary outcomes and corresponding anticipated effect size used for sample size estimation. Secondary outcomes were assessor of primary outcomes, the reporting of sample size calculations and statistically significant and non-significant results related to the anticipated effect sizes. RESULTS Of 11,854 screened trials, we included 59. The most frequent primary outcome was duration of analgesia (35/59 trials, 59%) with absolute and relative median (interquartile range) anticipated effect sizes for adjunct versus placebo/no adjunct: 240 min (180-318) and 30% (25-40) and for adjunct versus active comparator: 210 min (180-308) and 17% (15-28). Adequate sample size calculations were reported in 78% of trials. Statistically significant results were reported for primary outcomes in 45/59 trials (76%), of which 22% did not reach the anticipated effect size. CONCLUSION The reported outcomes and associated anticipated effect sizes can be used in future trials on adjuncts for peripheral nerve blocks to increase methodological homogeneity.
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Affiliation(s)
- Sarah Sofie Bitsch Flyger
- Centre for Anaesthesiological Research, Department of Anaesthesiology, Zealand University Hospital, Køge, Denmark
| | - Sandra Sorenson
- Centre for Anaesthesiological Research, Department of Anaesthesiology, Zealand University Hospital, Køge, Denmark
| | - Lasse Pingel
- Centre for Anaesthesiological Research, Department of Anaesthesiology, Zealand University Hospital, Køge, Denmark
| | - Anders Peder Højer Karlsen
- Department of Anaesthesia and Intensive Care Medicine, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
| | - Anders Kehlet Nørskov
- Department of Anaesthesiology, Copenhagen University Hospital - North Zealand, Hillerød, Denmark
| | - Ole Mathiesen
- Centre for Anaesthesiological Research, Department of Anaesthesiology, Zealand University Hospital, Køge, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Mathias Maagaard
- Centre for Anaesthesiological Research, Department of Anaesthesiology, Zealand University Hospital, Køge, Denmark
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Schou NK, Svensson LGT, Cleemann R, Andersen JH, Mathiesen O, Maagaard M. The efficacy and safety of ankle blocks for foot and ankle surgery: A systematic review with meta-analysis and trial sequential analysis. Foot Ankle Surg 2024; 30:355-365. [PMID: 38492998 DOI: 10.1016/j.fas.2024.02.015] [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] [Received: 09/27/2023] [Revised: 11/12/2023] [Accepted: 02/29/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND Peripheral nerve blocks may be essential elements in a multimodal pain management regime following foot and ankle surgery. We assessed the effects of ankle blocks compared with no intervention/sham block or a sciatic nerve block in patients undergoing surgery of the foot or ankle. METHODS We searched CENTRAL, Medline, and Embase for randomised clinical trials comparing ankle block with no intervention/sham block or a sciatic nerve block for patients undergoing surgery of the foot or ankle. Our primary outcomes were duration of analgesia and cumulative 24-hour opioid consumption. We followed the recommendations of the Cochrane Handbook, and performed meta-analysis, Trial Sequential Analysis (TSA), and assessed the risk of bias and certainty of the evidence using the GRADE approach. RESULTS We included five trials (362 participants) comparing ankle block with no intervention/sham block and three trials (247 participants) comparing ankle block with a sciatic nerve block. Ankle block may increase the duration of analgesia when compared with no intervention/sham block (MD 431 min; 96.7% CI 208 to 654), but the evidence was very uncertain. Duration was decreased when compared with a sciatic nerve block (MD -410 min; 96.7% CI -462 to -358). The ankle block duration was probably important in both comparisons. The effects on cumulative 24-hour opioid consumption were very uncertain in both comparisons. CONCLUSIONS Ankle block may increase the duration of analgesia when compared with no intervention/sham block, but the evidence was very uncertain, and decrease the duration of analgesia when compared with a sciatic nerve block. The ankle block duration was probably clinically important in both comparisons. The effects on cumulative 24-hour opioid consumption were very uncertain.
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Affiliation(s)
- Nikolaj K Schou
- Department of Anaesthesiology, Zealand University Hospital, Lykkebaekvej 1, 4600 Koege, Denmark.
| | - Lisa G T Svensson
- Department of Anaesthesiology, Zealand University Hospital, Lykkebaekvej 1, 4600 Koege, Denmark
| | - Rasmus Cleemann
- Department of Orthopaedic Surgery, Bispebjerg Hospital, Bispebjerg Bakke 23, 2400 Copenhagen NV, Denmark
| | - Jakob H Andersen
- Department of Anaesthesiology, Zealand University Hospital, Lykkebaekvej 1, 4600 Koege, Denmark; Department of Clinical Medicine, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark
| | - Ole Mathiesen
- Department of Anaesthesiology, Zealand University Hospital, Lykkebaekvej 1, 4600 Koege, Denmark; Department of Clinical Medicine, University of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen N, Denmark
| | - Mathias Maagaard
- Department of Anaesthesiology, Zealand University Hospital, Lykkebaekvej 1, 4600 Koege, Denmark
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Li Q, Yang Y, Leng Y, Yin X, Liu J, Zhou C. Dexmedetomidine with different concentrations added to local anesthetics in erector spinae plane block: a meta-analysis of randomized controlled trials. Front Med (Lausanne) 2024; 11:1326566. [PMID: 38841587 PMCID: PMC11150627 DOI: 10.3389/fmed.2024.1326566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 05/03/2024] [Indexed: 06/07/2024] Open
Abstract
Background Dexmedetomidine has been used as a perineural local anesthetic (LA) adjuvant to facilitate the potency of erector spinal plane block (ESPB). This quantitative review aimed to evaluate whether perineural dexmedetomidine for ESPB can improve the effects of analgesia compared to LA alone. Methods Randomized controlled trials (RCTs) that investigated the addition of dexmedetomidine to LA compared to LA alone in ESPB were included. The pain scores, duration of sensory block, the time to first analgesia requirement, postoperative morphine consumption, rescue analgesia, and dexmedetomidine-related side effects were analyzed and combined using random-effects models. Results A total of 823 patients from 13 RCTs were analyzed. Dexmedetomidine was used at the concentration of 0.5 μg/kg in three trials and 1 μg/kg in nine trials, and both in one trial. Both concentrations of dexmedetomidine perineurally administrated significantly reduced the rest VAS scores postoperatively at 12 h (0.5 μg/kg dexmedetomidine: MD = -0.86; 95% CI: -1.59 to -0.12; p = 0.02; 1 μg/kg dexmedetomidine: MD = -0.49; 95% CI: -0.83 to -0.16; p = 0.004), and 24 h (0.5 μg/kg dexmedetomidine: MD = -0.43; 95% CI: -0.74 to -0.13; p = 0.005; 1 μg/kg dexmedetomidine: MD = -0.62; 95% CI: -0.84 to -0.41; p < 0.00001). Both concentrations of dexmedetomidine added in LAs improved the dynamic VAS scores postoperatively at 12 h (0.5 μg/kg dexmedetomidine: MD = -0.55; 95% CI: -0.95 to -0.15; p = 0.007; 1 μg/kg dexmedetomidine: MD = -0.66; 95% CI: -1.05 to -0.28; p = 0.0006) and 24 h (0.5 μg/kg dexmedetomidine: MD = -0.52; 95% CI: -0.94 to -0.10; p = 0.01; 1 μg/kg dexmedetomidine: MD = -0.46; 95% CI: -0.75 to -0.16; p = 0.002). Furthermore, perineural dexmedetomidine prolonged the duration of the sensory block and the time to first analgesia requirement, reduced postoperative morphine consumption, and lowered the incidence of rescue analgesia and chronic pain. Conclusion The meta-analysis showed that using perineural dexmedetomidine at either 0.5 μg/kg or 1 μg/kg doses in ESPB can effectively and safely enhance pain relief. Systematic review registration PROSPERO (CRD42023424532: https://www.crd.york.ac.uk/PROSPERO/).
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Affiliation(s)
- Qian Li
- Department of Anesthesiology, West China Hospital of Sichuan University, Chengdu, China
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital of Sichuan University, Chengdu, China
| | - Yaoxin Yang
- Department of Anesthesiology, West China Hospital of Sichuan University, Chengdu, China
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital of Sichuan University, Chengdu, China
| | - Yu Leng
- Department of Anesthesiology, West China Hospital of Sichuan University, Chengdu, China
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital of Sichuan University, Chengdu, China
| | - Xiaowei Yin
- Department of Anesthesiology, West China Hospital of Sichuan University, Chengdu, China
| | - Jin Liu
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital of Sichuan University, Chengdu, China
| | - Cheng Zhou
- Laboratory of Anesthesia and Critical Care Medicine, National-Local Joint Engineering Research Centre of Translational Medicine of Anesthesiology, West China Hospital of Sichuan University, Chengdu, China
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Singh NP, Makkar JK, Chawla JK, Sondekoppam RV, Singh PM. Prophylactic dexamethasone for rebound pain after peripheral nerve block in adult surgical patients: systematic review, meta-analysis, and trial sequential analysis of randomised controlled trials. Br J Anaesth 2024; 132:1112-1121. [PMID: 38501226 DOI: 10.1016/j.bja.2023.09.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 09/01/2023] [Accepted: 09/26/2023] [Indexed: 03/20/2024] Open
Abstract
BACKGROUND Rebound pain occurs after the resolution of peripheral nerve block and hampers patient recovery in the postoperative period. We sought to synthesise available data from randomised controlled trials (RCTs) evaluating the efficacy of prophylactic dexamethasone for rebound pain in adult patients undergoing surgery with a peripheral nerve block. METHODS In this systematic review and meta-analysis, RCTs reporting rebound pain and use of dexamethasone in the context of a peripheral nerve block were searched in various databases and updated in May 2023. The primary outcome was the incidence of rebound pain; secondary outcomes included the severity and time to onset of rebound pain, patient satisfaction with pain control, sleep disturbance because of pain, and adverse effects of dexamethasone. Subgroup analysis was conducted based on the effect of route of administration (intravenous or perineural) on the incidence of rebound pain. Trial sequential analysis was performed to rule out the possibility of a false positive result. RESULTS Seven RCTs comprising 574 patients were included in this review. The dexamethasone group was associated with a reduction in the incidence of rebound pain with an odds ratio of 0.16 (95% confidence interval 0.10-0.27, P=0.00, I2=0%) compared with the control group. Trial sequential analysis confirmed the adequate information size for the beneficial effect of dexamethasone. Subgroup analysis showed that both intravenous and perineural administration were associated with a significant reduction in the incidence of rebound pain. CONCLUSIONS Current evidence suggests that both intravenous and perineural dexamethasone reduce the incidence of rebound pain after a peripheral nerve block provided for postoperative analgesia. SYSTEMATIC REVIEW PROTOCOL PROSPERO CRD42023424031.
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Affiliation(s)
- Narinder P Singh
- Department of Anesthesia and Pain Medicine, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada.
| | - Jeetinder K Makkar
- Department of Anaesthesia and Intensive Care, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | | | - Rakesh V Sondekoppam
- Department of Anesthesia, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Preet M Singh
- Department of Anesthesiology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
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Kim MK, Park YH, Lee JS, Jung HS. How Does the Addition of Dexamethasone to a Brachial Plexus Block Change Pain Patterns After Surgery for Distal Radius Fractures? A Randomized, Double-blind Study. Clin Orthop Relat Res 2023; 481:1966-1974. [PMID: 37053082 PMCID: PMC10499086 DOI: 10.1097/corr.0000000000002640] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 01/27/2023] [Accepted: 03/07/2023] [Indexed: 04/14/2023]
Abstract
BACKGROUND Although brachial plexus block in volar plating surgery for distal radius fractures is reportedly associated with lower postoperative pain scores, rebound pain has been reported to occur after the initial block wears off. Dexamethasone can be used in multimodal strategies for antiemesis and to control pain postoperatively. Although prior studies have suggested that anesthesia can be prolonged by adding dexamethasone to regional blocks, no randomized trials we are aware of have ascertained whether doing so will make a clinically important difference in pain after surgery for distal radius fractures. QUESTIONS/PURPOSES Do patients who receive supplemental dexamethasone in a brachial plexus block for volar plating of unstable distal radius fractures have (1) better pain scores at 4, 8, 24, and 48 hours postoperatively than patients who have not received dexamethasone, and (2) lower fentanyl consumption and administration of antiemetic drugs without change in serum blood glucose, as well as a longer analgesic duration from the block after surgery than patients who have not received dexamethasone? METHODS This randomized, double-blind trial included 69 patients undergoing surgery for distal radius fractures under ultrasound-guided supraclavicular brachial plexus blocks who were randomly allocated into two groups: a nondexamethasone group receiving a brachial plexus block with 0.5% ropivacaine and a dexamethasone group receiving 0.5% ropivacaine and 5 mg of dexamethasone. Thirty-four patients were allocated to the dexamethasone group and 35 were allocated to the nondexamethasone group. Nine patients (four in the dexamethasone group and five in the nondexamethasone group) were excluded after randomization because local anesthetics were used during their surgical procedures owing to an incomplete block or they requested patient-controlled analgesia after surgery. The treatment groups did not differ in any important ways, including age, gender, BMI, hand dominance, and AO/Orthopaedic Trauma Association classification. All patients received the same surgical procedure and perioperative care protocol, except for the injected agents during their brachial plexus block. The primary outcome was postoperative pain, evaluated using a 10-mm VAS at 4, 8, 12, 24, and 48 hours after surgery. The minimum clinically important difference for the VAS score was 2 of 10 points. Secondary outcome variables included fentanyl administration as a rescue analgesic, the number of patients receiving antiemetic medications because of fentanyl administration, and the duration of brachial plexus block. Serum blood glucose was measured 1 day before, immediately after, and 24 hours after surgery. Patients, surgeons, and outcome assessors were blinded to treatment allocation. RESULTS The only clinically important between-group difference in VAS pain scores was at 8 hours, favoring the group that received dexamethasone over the group that did not (1.9 ± 1.6 versus 4.7 ± 2.7; mean difference -2.8 [95% CI -3.9 to -1.6]; p < 0.001). After brachial plexus block, the most severe pain score in both groups was reported at 12 hours postoperatively and gradually diminished over time. There was no between-group difference in fentanyl use between those who received dexamethasone and those who did not (21 ± 38 mcg versus 31 ± 29 mcg; mean difference -10 [95% CI -27.4 to 7.4]; p = 0.26). Furthermore, the use of antiemetics did not differ between the groups (27% [eight of 30] versus 37% [11 of 30]; odds ratio 1.6 [95% CI 0.5 to 4.8]; p = 0.41). Baseline and 24-hour postoperative serum blood glucose level did not differ between the groups. However, the immediately postoperative serum blood glucose level was higher in the dexamethasone group than in the nondexamethasone group (121 ± 29 versus 104 ± 20; mean difference 16 [95% CI 3.3 to 28.8]; p = 0.02). The brachial plexus block duration was 3 hours longer (95% CI 0.8 to 5.2 hours) in the dexamethasone group than that in the nondexamethasone group (11 ± 5 hours versus 8 ± 3 hours; p = 0.01). CONCLUSION The postoperative pain level in patients who received supplemental dexamethasone in a regional block was not clinically different from that of patients who received conventional brachial plexus block anesthesia when undergoing volar plating for distal radius fractures. However, patients who received a brachial plexus block with dexamethasone experienced slight prolongation of their block and decrease in pain 8 hours after surgery. LEVEL OF EVIDENCE Level I, therapeutic study.
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Affiliation(s)
- Min Kyoung Kim
- Department of Anesthesiology and Pain Medicine, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong, Korea
| | - Yong-Hee Park
- Department of Anesthesiology and Pain Medicine, Chung-Ang University Hospital, Seoul, Korea
| | - Jae Sung Lee
- Department of Orthopaedic Surgery, Chung-Ang University Hospital, Seoul, South Korea
| | - Hyoung-Seok Jung
- Department of Orthopaedic Surgery, Chung-Ang University Gwangmyeong Hospital, Gwangmyeong, South Korea
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Nijs K, Ruette J, Van de Velde M, Stessel B. Regional anaesthesia for ambulatory surgery. Best Pract Res Clin Anaesthesiol 2023; 37:397-408. [PMID: 37938085 DOI: 10.1016/j.bpa.2022.12.001] [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: 10/25/2022] [Revised: 12/05/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Regional anaesthesia (RA) has an important and ever-expanding role in ambulatory surgery. Specific practices vary depending on the preferences and resources of the anaesthesia team and hospital setting. It is used for various purposes, including as primary anaesthetic technique for surgery but also as postoperative analgesic modality. The limited duration of action of currently available local anaesthetics limits their application in postoperative pain control and enhanced recovery. The search for the holy grail of regional anaesthetics continues. Current evidence suggests that a peripheral nerve block performed with long-acting local anaesthetics in combination with intravenous or perineural dexamethasone gives the longest and most optimal sensory block. In this review, we outline some possible blocks for ambulatory surgery and additives to perform RA. Moreover, we give an update on local anaesthesia drugs and adjuvants, paediatric RA in ambulatory care and discuss the impact of RA by COVID-19.
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Affiliation(s)
- Kristof Nijs
- Department of Anaesthesiology and Pain Medicine, Jessa Hospital, Hasselt, Belgium; UHasselt, Faculty of Medicine and Life Sciences, Diepenbeek, Belgium; KULeuven, Department of Cardiovascular Sciences, Leuven, Belgium; Department of Anaesthesiology and Pain Medicine, University Hospitals Leuven, Leuven, Belgium.
| | - Joke Ruette
- Department of Anaesthesiology and Pain Medicine, Jessa Hospital, Hasselt, Belgium; Department of Anaesthesiology and Pain Medicine, University Hospitals Leuven, Leuven, Belgium
| | - Marc Van de Velde
- KULeuven, Department of Cardiovascular Sciences, Leuven, Belgium; Department of Anaesthesiology and Pain Medicine, University Hospitals Leuven, Leuven, Belgium
| | - Björn Stessel
- Department of Anaesthesiology and Pain Medicine, Jessa Hospital, Hasselt, Belgium; UHasselt, Faculty of Medicine and Life Sciences, Diepenbeek, Belgium
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Chen Z, Liu Z, Feng C, Jin Y, Zhao X. Dexmedetomidine as an Adjuvant in Peripheral Nerve Block. Drug Des Devel Ther 2023; 17:1463-1484. [PMID: 37220544 PMCID: PMC10200118 DOI: 10.2147/dddt.s405294] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 05/05/2023] [Indexed: 05/25/2023] Open
Abstract
Peripheral nerve block technology is important to balanced anesthesia technology. It can effectively reduce opioid usage. It is the key to enhance clinical rehabilitation as an important part of the multimodal analgesia scheme. The emergence of ultrasound technology has accelerated peripheral nerve block technology development. It can directly observe the nerve shape, surrounding tissue, and diffusion path of drugs. It can also reduce the dosage of local anesthetics by improving positioning accuracy while enhancing the block's efficacy. Dexmedetomidine is a highly selective drug α2-adrenergic receptor agonist. Dexmedetomidine has the characteristics of sedation, analgesia, anti-anxiety, inhibition of sympathetic activity, mild respiratory inhibition, and stable hemodynamics. Numerous studies have revealed that dexmedetomidine in peripheral nerve blocks can shorten the onset time of anesthesia and prolong the time of sensory and motor nerve blocks. Although dexmedetomidine was approved by the European Drug Administration for sedation and analgesia in 2017, it has not yet been approved by the US Food and Drug Administration (FDA). It is used as a non-label drug as an adjuvant. Therefore, the risk-benefit ratio must be evaluated when using these drugs as adjuvants. This review explains the pharmacology and mechanism of dexmedetomidine, the effect of dexmedetomidine on various peripheral nerve block as an adjuvant, and compare it with other types of adjuvants. We summarized and reviewed the application progress of dexmedetomidine as an adjuvant in nerve block and look forward to its future research direction.
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Affiliation(s)
- Zheping Chen
- Department of Anesthesiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
| | - Zhenzhen Liu
- Department of Anesthesiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
| | - Chang Feng
- Department of Anesthesiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
| | - Yanwu Jin
- Department of Anesthesiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
| | - Xin Zhao
- Department of Anesthesiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
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Tan ESJ, Tan YR, Liu CWY. Efficacy of perineural dexamethasone in prolonging duration of analgesia with peripheral nerve blocks compared to intravenous dexamethasone: A systematic review and meta-analysis. Korean J Anesthesiol 2021; 75:255-265. [PMID: 34963269 PMCID: PMC9171542 DOI: 10.4097/kja.21390] [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: 09/20/2021] [Accepted: 12/23/2021] [Indexed: 11/10/2022] Open
Abstract
Background Perineural dexamethasone has been regarded as a promising adjunct for prolonging the duration of nerve blocks. However, it is uncertain whether its effects are due to local effects on the nerves or from systemic absorption. This systematic review aimed to compare the duration of postoperative analgesia associated with perineural versus intravenous dexamethasone as an adjunct to peripheral nerve blocks. Methods A total of 2,216 relevant academic articles were identified after a comprehensive search of PubMed, Embase, Scopus, Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov from 1967 until 2020. All randomized controlled trials that compared perineural and intravenous dexamethasone as adjuncts to peripheral nerve limb blocks were included. Results Fifteen randomized controlled trials (1,467 cases; 738 perineural dexamethasone, 729 intravenous dexamethasone) were eligible. The primary outcome (duration of analgesia) was significantly longer in the perineural than in the intravenous dexamethasone group (mean difference [MD]: 2.72 h, 95% CI [1.42, 4.01], P < 0.001). Perineural dexamethasone was also found to prolong the sensory block (MD: 3.45 h, 95% CI [1.36, 5.54], P = 0.001) and lower 24 h postoperative pain scores (MD: −0.74 h, 95% CI [−1.40, −0.07], P = 0.03). Conclusions This review confirms the greater efficacy of perineural compared to intravenous dexamethasone in prolonging the analgesic duration of peripheral nerve blocks. However, the extent of prolongation was small and may not represent a clinically meaningful difference.
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Affiliation(s)
| | - Yan Ru Tan
- Department of Anesthesiology, Singapore General Hospital, Singapore
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10
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Xuan C, Yan W, Wang D, Li C, Ma H, Mueller A, Wang J. The Facilitatory Effects of Adjuvant Pharmaceutics to Prolong the Duration of Local Anesthetic for Peripheral Nerve Block: A Systematic Review and Network Meta-analysis. Anesth Analg 2021; 133:620-629. [PMID: 34153021 DOI: 10.1213/ane.0000000000005640] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Peripheral nerve block (PNB) with perineural local anesthetic is used for anesthesia or analgesia with many benefits. To extend these benefits, various adjuvant drugs have been used to prolong the duration of analgesia. We aimed to evaluate the effectiveness of various adjuvants at prolonging the duration of sensory and motor blockade for PNB. METHODS A network meta-analysis of placebo-controlled and active randomized controlled trials was performed comparing 10 adjuvants. Embase, PubMed, Web of Science, and Cochrane library were searched, with articles before May 21, 2020 included. Two authors independently selected studies and extracted data. The primary outcomes were sensory block (SB) and motor block (MB) time, and the secondary outcome was time of first analgesia rescue (FAR). Effect size measures were described as mean differences (MD) with 95% confidence intervals (CIs). Confidence in evidence was assessed using Confidence in Network Meta-Analysis (CINeMA). The study protocol was preregistered with the prospectively registered systematic reviews in health and social care international database (PROSPERO), as number CRD42020187866. RESULTS Overall 16,364 citations were identified, of which 53 studies were included with data for 3649 patients. In network meta-analyses, 4 of 7 included treatment strategies were associated with more efficacious analgesia compared with placebo therapy, including dexamethasone (SB time: 5.73 hours, 95% CI, 4.16-7.30; MB time: 4.20 hours, 95% CI, 2.51-5.89; time of FAR: 8.71 hours, 95% CI, 6.63-10.79), dexmedetomidine (SB time: 4.51 hours, 95% CI, 3.52-5.50; MB time: 4.04 hours, 95% CI, 2.98-5.11; time of FAR: 5.25 hours, 95% CI, 4.08-6.43), fentanyl (SB time: 3.59 hours, 95% CI, 0.11-7.06; MB time: 4.42 hours, 95% CI, 0.78-8.06), and clonidine (SB time: 2.75 hours, 95% CI, 1.46-4.04; MB time: 2.93 hours, 95% CI, 1.69-4.16; time of FAR: 3.35 hours, 95% CI, 1.82-4.87). In a subgroup analysis, addition of dexamethasone to ropivacaine significantly increased the time of FAR when compared to dexmedetomidine (time of FAR: 5.23 hours, 95% CI, 2.92-7.54) or clonidine (time of FAR: 6.61 hours, 95% CI, 4.29-8.92) with ropivacaine. CONCLUSIONS These findings provide evidence for the consideration of dexmedetomidine, dexamethasone, and clonidine as adjuvants to prolong the duration of PNB. The addition of dexamethasone to ropivacaine has a longer time of FAR compared with clonidine or dexmedetomidine.
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Affiliation(s)
- Chengluan Xuan
- From the Department of Anesthesia, The First Hospital of Jilin University, Jilin, China
| | - Wen Yan
- Department of Anesthesia, The Second Hospital of Jilin University, Jilin, China
| | - Dan Wang
- From the Department of Anesthesia, The First Hospital of Jilin University, Jilin, China
| | - Cong Li
- From the Department of Anesthesia, The First Hospital of Jilin University, Jilin, China
| | - Haichun Ma
- From the Department of Anesthesia, The First Hospital of Jilin University, Jilin, China
| | - Ariel Mueller
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Jingping Wang
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
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Kim BG, Lee W, Song JH, Yang C, Heo GA, Kim H. Effect of intravenous dexamethasone on the duration of postoperative analgesia for popliteal sciatic nerve block: a randomized, double-blind, placebo-controlled study. Korean J Anesthesiol 2021; 74:317-324. [PMID: 33784802 PMCID: PMC8342835 DOI: 10.4097/kja.20640] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 03/28/2021] [Indexed: 12/13/2022] Open
Abstract
Background Intravenous (IV) dexamethasone prolongs the duration of a peripheral nerve block; however, there is little available information about its optimal effective dose. This study aimed to evaluate the effects of three different doses of IV dexamethasone on the duration of postoperative analgesia to determine the optimal effective dose for a sciatic nerve block. Methods Patients scheduled for foot and ankle surgery were randomly assigned to receive normal saline or IV dexamethasone (2.5 mg, 5 mg, or 10 mg). An ultrasound-guided popliteal sciatic nerve block was performed using 0.75% ropivacaine (20 ml) before general anesthesia. The duration of postoperative analgesia was the primary outcome, and pain scores, use of rescue analgesia, onset time, adverse effects, and patient satisfaction were assessed as secondary outcomes. Results Compared with the control group, the postoperative analgesic duration of the sciatic nerve block was prolonged in groups receiving IV dexamethasone 10 mg (P < 0.001), but not in the groups receiving IV dexamethasone 2.5 mg or 5 mg. The use of rescue analgesics was significantly different among the four groups 24 h postoperatively (P = 0.001) and similar thereafter. However, pain scores were not significantly different among the four groups 24 h postoperatively. There were no statistically significant differences in the other secondary outcomes among the four groups. Conclusions This study demonstrated that compared to the controls, only IV dexamethasone 10 mg increased the duration of postoperative analgesia following a sciatic nerve block for foot and ankle surgery without the occurrence of adverse events.
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Affiliation(s)
- Byung-Gun Kim
- Department of Anesthesiology and Pain Medicine, Inha University School of Medicine, Incheon, Korea
| | - Woojoo Lee
- Department of Public Health Science, Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - Jang Ho Song
- Department of Anesthesiology and Pain Medicine, Inha University School of Medicine, Incheon, Korea
| | - Chunwoo Yang
- Department of Anesthesiology and Pain Medicine, Inha University School of Medicine, Incheon, Korea
| | - Gyung A Heo
- Department of Anesthesiology and Pain Medicine, Inha University School of Medicine, Incheon, Korea
| | - Hongseok Kim
- Department of Anesthesiology and Pain Medicine, Inha University School of Medicine, Incheon, Korea
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12
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Intravenous dexamethasone and peripheral nerve blocks: A systemic review and meta-analysis of randomized controlled trials. INTERNATIONAL JOURNAL OF SURGERY OPEN 2020. [DOI: 10.1016/j.ijso.2020.08.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Capdevila X, Iohom G, Choquet O, Delaney P, Apan A. Catheter use in regional anesthesia: pros and cons. Minerva Anestesiol 2019; 85:1357-1364. [PMID: 31630506 DOI: 10.23736/s0375-9393.19.13581-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Continuous peripheral nerve blocks refer to a local anesthetic solution administered via perineurally placed catheters in an effort to extend the benefits of a single-shot peripheral nerve block. They offer several advantages in the postoperative period including excellent analgesia, reduced opioid consumption and associated side effects, enhanced rehabilitation and improved patient satisfaction. The current trend towards less invasive, one-day surgery and enhanced recovery programs may decrease the requirement of catheter use. Prolonged motor block in particular is associated with undesirable outcomes. Should we routinely use continuous peripheral nerve blocks in our daily practice? This PRO-CON debate aims at answering the question from the experts' perspectives. Fascial compartment and wound catheters are outside the scope of this debate.
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Affiliation(s)
- Xavier Capdevila
- Department of Anesthesia and Critical Care, Lapeyronie University Hospital, Montpellier, France
| | - Gabriella Iohom
- Department of Anaesthesia and Intensive Care Medicine, Cork University Hospital, Cork, Ireland
| | - Olivier Choquet
- Department of Anesthesia and Critical Care, Lapeyronie University Hospital, Montpellier, France
| | - Paudie Delaney
- Department of Anaesthesia and Intensive Care Medicine, Cork University Hospital, Cork, Ireland
| | - Alparslan Apan
- Department of Anesthesia and Intensive Care Medicine, Giresun University Hospital, Giresun, Turkey -
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14
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Marty P, Rontes O, Chassery C, Bataille B, Ferre F, Delbos A. Blinded by certainties. Reg Anesth Pain Med 2019; 44:419-420. [PMID: 30777906 DOI: 10.1136/rapm-2018-100319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 12/27/2018] [Indexed: 11/04/2022]
Affiliation(s)
- Philippe Marty
- Department of Anesthesia, Clinique Medipole Garonne, Toulouse, France
| | - Olivier Rontes
- Department of Anesthesia, Clinique Medipole Garonne, Toulouse, France
| | - Clement Chassery
- Department of Anesthesia, Clinique Medipole Garonne, Toulouse, France
| | - Benoit Bataille
- Department of Anesthesia and Intensive Care, Narbonne general Hospital, Narbonne, France
| | - Fabrice Ferre
- Department of Anesthesia, CHU Purpan, Toulouse, France
| | - Alain Delbos
- Department of Anesthesia, Clinique Medipole Garonne, Toulouse, France
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15
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Tran DQ, Salinas FV, Benzon HT, Neal JM. Lower extremity regional anesthesia: essentials of our current understanding. Reg Anesth Pain Med 2019; 44:rapm-2018-000019. [PMID: 30635506 DOI: 10.1136/rapm-2018-000019] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 05/14/2018] [Accepted: 05/23/2018] [Indexed: 12/16/2022]
Abstract
The advent of ultrasound guidance has led to a renewed interest in regional anesthesia of the lower limb. In keeping with the American Society of Regional Anesthesia and Pain Medicine's ongoing commitment to provide intensive evidence-based education, this article presents a complete update of the 2005 comprehensive review on lower extremity peripheral nerve blocks. The current review article strives to (1) summarize the pertinent anatomy of the lumbar and sacral plexuses, (2) discuss the optimal approaches and techniques for lower limb regional anesthesia, (3) present evidence to guide the selection of pharmacological agents and adjuvants, (4) describe potential complications associated with lower extremity nerve blocks, and (5) identify informational gaps pertaining to outcomes, which warrant further investigation.
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Affiliation(s)
- De Q Tran
- Department of Anesthesiology, McGill University, Montreal, Quebec, Canada
| | - Francis V Salinas
- Department of Anesthesiology, US Anesthesia Partners-Washington, Swedish Medical Center, Seattle, Washington, USA
| | - Honorio T Benzon
- Department of Anesthesiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Joseph M Neal
- Department of Anesthesiology, Virginia Mason Medical Center, Seattle, Washington, USA
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16
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Effect of Perineural Dexamethasone on the Duration of Single Injection Saphenous Nerve Block for Analgesia After Major Ankle Surgery: A Randomized, Controlled Study. Reg Anesth Pain Med 2018; 42:210-216. [PMID: 28033159 DOI: 10.1097/aap.0000000000000538] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND AND OBJECTIVES Patients undergoing major elective ankle surgery often experience pain from the saphenous nerve territory persisting beyond the duration of a single-injection saphenous nerve block. We hypothesized that perineural dexamethasone as an adjuvant for the saphenous nerve block prolongs the duration of analgesia and postpones as well as reduces opioid-requiring pain. METHODS Forty patients were included in this prospective, randomized, controlled study. All patients received a continuous sciatic catheter and were randomized to receive a single-injection saphenous nerve block with 10 mL of 0.5% bupivacaine with 1:200,000 epinephrine with addition of 1 mL of saline or 1 mL of 0.4% (ie, 4 mg) dexamethasone. The primary outcome was duration of saphenous nerve block estimated as the time until the first opioid request. Secondary outcomes were opioid consumption and pain. RESULTS The mean (SD) duration of the saphenous nerve block until first opioid request was 29.4 (8.4) hours in the dexamethasone group and 23.2 (10.3) hours in the control group (P = 0.048). The median opioid consumption [interquartile range] during the first 24 hours was 0 mg [0-0] versus 1.5 mg [0-14.2] in the dexamethasone and control groups, respectively. Nonparametric comparison of opioid consumption from 0 to 24 hours was statistically significant. The opioid consumption was similar in the two groups in the time interval 24 to 48 postoperative hours. CONCLUSION Perineural dexamethasone as an adjuvant for the single-injection subsartorial saphenous nerve block can prolong analgesia and reduce opioid-requiring pain after major ankle surgery.
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17
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Perineural Versus Systemic Dexamethasone in Front-Foot Surgery Under Ankle Block: A Randomized Double-Blind Study. Reg Anesth Pain Med 2018; 43:732-737. [PMID: 29630032 DOI: 10.1097/aap.0000000000000769] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND OBJECTIVES Among the different adjuvants, dexamethasone is one of the most accepted to prolong the effect of local anesthetics. This study aims to determine the superiority of perineural over systemic dexamethasone administration after a single-shot ankle block in metatarsal osteotomy. METHODS We performed a prospective, double-blind, randomized study. A total of 100 patients presenting for metatarsal osteotomy with an ankle block were randomized into 2 groups: 30 mL ropivacaine 0.375% + perineural dexamethasone 4 mg (1 mL) + 2.5 mL of systemic saline solution (PNDex group, n = 50) and 30 mL ropivacaine 0.375% + 1 mL of perineural saline solution + intravenous dexamethasone 10 mg (2.5 mL) (IVDex group, n = 50). The primary end point was the duration of analgesia defined as the time between the performance of the ankle block and the first administration of rescue analgesia with tramadol. RESULTS Time period to first rescue analgesia with tramadol was similar in the IVDex group and the PNDex group. Data are expressed as mean (SD) or median (range). Duration of analgesia was 23.2 (9.5) hours in the IVDex group and 19 (8.2) hours in the PNDex group (P = 0.4). Consumption of tramadol during the first 48 hours was 0 mg (0-150 mg) in the IVDex group versus 0 mg (0-250 mg) in the PNDex group (P = 0.59). Four (8%) and 12 (24%) patients reported nausea or vomiting in the IVDex group and the PNDex group, respectively (P = 0.03). CONCLUSIONS In front-foot surgery, perineural and systemic administrations of dexamethasone are equivalent for postoperative pain relief when used as an adjuvant to ropivacaine ankle block. CLINICAL TRIAL REGISTRATION This study was registered at ClinicalTrials.gov, identifier NCT02904538.
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18
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Dexamethasone Injected Perineurally is More Effective than Administered Intravenously for Peripheral Nerve Blocks. Clin J Pain 2018; 34:276-284. [DOI: 10.1097/ajp.0000000000000519] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Heesen M, Klimek M, Imberger G, Hoeks S, Rossaint R, Straube S. Co-administration of dexamethasone with peripheral nerve block: intravenous vs perineural application: systematic review, meta-analysis, meta-regression and trial-sequential analysis. Br J Anaesth 2018; 120:212-227. [DOI: 10.1016/j.bja.2017.11.062] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2017] [Indexed: 10/18/2022] Open
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20
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Equivalent analgesic effectiveness between perineural and intravenous dexamethasone as adjuvants for peripheral nerve blockade: a systematic review and meta-analysis. Can J Anaesth 2017; 65:194-206. [DOI: 10.1007/s12630-017-1008-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 11/02/2017] [Indexed: 12/29/2022] Open
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Pehora C, Pearson AME, Kaushal A, Crawford MW, Johnston B. Dexamethasone as an adjuvant to peripheral nerve block. Cochrane Database Syst Rev 2017; 11:CD011770. [PMID: 29121400 PMCID: PMC6486015 DOI: 10.1002/14651858.cd011770.pub2] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Peripheral nerve block (infiltration of local anaesthetic around a nerve) is used for anaesthesia or analgesia. A limitation to its use for postoperative analgesia is that the analgesic effect lasts only a few hours, after which moderate to severe pain at the surgical site may result in the need for alternative analgesic therapy. Several adjuvants have been used to prolong the analgesic duration of peripheral nerve block, including perineural or intravenous dexamethasone. OBJECTIVES To evaluate the comparative efficacy and safety of perineural dexamethasone versus placebo, intravenous dexamethasone versus placebo, and perineural dexamethasone versus intravenous dexamethasone when added to peripheral nerve block for postoperative pain control in people undergoing surgery. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials, MEDLINE, Embase, DARE, Web of Science and Scopus from inception to 25 April 2017. We also searched trial registry databases, Google Scholar and meeting abstracts from the American Society of Anesthesiologists, the Canadian Anesthesiologists' Society, the American Society of Regional Anesthesia, and the European Society of Regional Anaesthesia. SELECTION CRITERIA We included all randomized controlled trials (RCTs) comparing perineural dexamethasone with placebo, intravenous dexamethasone with placebo, or perineural dexamethasone with intravenous dexamethasone in participants receiving peripheral nerve block for upper or lower limb surgery. DATA COLLECTION AND ANALYSIS We used standard methodological procedures expected by Cochrane. MAIN RESULTS We included 35 trials of 2702 participants aged 15 to 78 years; 33 studies enrolled participants undergoing upper limb surgery and two undergoing lower limb surgery. Risk of bias was low in 13 studies and high/unclear in 22. Perineural dexamethasone versus placeboDuration of sensory block was significantly longer in the perineural dexamethasone group compared with placebo (mean difference (MD) 6.70 hours, 95% confidence interval (CI) 5.54 to 7.85; participants1625; studies 27). Postoperative pain intensity at 12 and 24 hours was significantly lower in the perineural dexamethasone group compared with control (MD -2.08, 95% CI -2.63 to -1.53; participants 257; studies 5) and (MD -1.63, 95% CI -2.34 to -0.93; participants 469; studies 9), respectively. There was no significant difference at 48 hours (MD -0.61, 95% CI -1.24 to 0.03; participants 296; studies 4). The quality of evidence is very low for postoperative pain intensity at 12 hours and low for the remaining outcomes. Cumulative 24-hour postoperative opioid consumption was significantly lower in the perineural dexamethasone group compared with placebo (MD 19.25 mg, 95% CI 5.99 to 32.51; participants 380; studies 6). Intravenous dexamethasone versus placeboDuration of sensory block was significantly longer in the intravenous dexamethasone group compared with placebo (MD 6.21, 95% CI 3.53 to 8.88; participants 499; studies 8). Postoperative pain intensity at 12 and 24 hours was significantly lower in the intravenous dexamethasone group compared with placebo (MD -1.24, 95% CI -2.44 to -0.04; participants 162; studies 3) and (MD -1.26, 95% CI -2.23 to -0.29; participants 257; studies 5), respectively. There was no significant difference at 48 hours (MD -0.21, 95% CI -0.83 to 0.41; participants 172; studies 3). The quality of evidence is moderate for duration of sensory block and postoperative pain intensity at 24 hours, and low for the remaining outcomes. Cumulative 24-hour postoperative opioid consumption was significantly lower in the intravenous dexamethasone group compared with placebo (MD -6.58 mg, 95% CI -10.56 to -2.60; participants 287; studies 5). Perinerual versus intravenous dexamethasoneDuration of sensory block was significantly longer in the perineural dexamethasone group compared with intravenous by three hours (MD 3.14 hours, 95% CI 1.68 to 4.59; participants 720; studies 9). We found that postoperative pain intensity at 12 hours and 24 hours was significantly lower in the perineural dexamethasone group compared with intravenous, however, the MD did not surpass our pre-determined minimally important difference of 1.2 on the Visual Analgue Scale/Numerical Rating Scale, therefore the results are not clinically significant (MD -1.01, 95% CI -1.51 to -0.50; participants 217; studies 3) and (MD -0.77, 95% CI -1.47 to -0.08; participants 309; studies 5), respectively. There was no significant difference in severity of postoperative pain at 48 hours (MD 0.13, 95% CI -0.35 to 0.61; participants 227; studies 3). The quality of evidence is moderate for duration of sensory block and postoperative pain intensity at 24 hours, and low for the remaining outcomes. There was no difference in cumulative postoperative 24-hour opioid consumption (MD -3.87 mg, 95% CI -9.93 to 2.19; participants 242; studies 4). Incidence of severe adverse eventsFive serious adverse events were reported. One block-related event (pneumothorax) occurred in one participant in a trial comparing perineural dexamethasone and placebo; however group allocation was not reported. Four non-block-related events occurred in two trials comparing perineural dexamethasone, intravenous dexamethasone and placebo. Two participants in the placebo group required hospitalization within one week of surgery; one for a fall and one for a bowel infection. One participant in the placebo group developed Complex Regional Pain Syndrome Type I and one in the intravenous dexamethasone group developed pneumonia. The quality of evidence is very low due to the sparse number of events. AUTHORS' CONCLUSIONS Low- to moderate-quality evidence suggests that when used as an adjuvant to peripheral nerve block in upper limb surgery, both perineural and intravenous dexamethasone may prolong duration of sensory block and are effective in reducing postoperative pain intensity and opioid consumption. There is not enough evidence to determine the effectiveness of dexamethasone as an adjuvant to peripheral nerve block in lower limb surgeries and there is no evidence in children. The results of our review may not apply to participants at risk of dexamethasone-related adverse events for whom clinical trials would probably be unsafe.There is not enough evidence to determine the effectiveness of dexamethasone as an adjuvant to peripheral nerve block in lower limb surgeries and there is no evidence in children. The results of our review may not be apply to participants who at risk of dexamethasone-related adverse events for whom clinical trials would probably be unsafe. The nine ongoing trials registered at ClinicalTrials.gov may change the results of this review.
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Affiliation(s)
- Carolyne Pehora
- The Hospital for Sick Children, University of TorontoDepartment of Anesthesia and Pain Medicine555 University AvenueTorontoONCanadaM5G 1X8
| | - Annabel ME Pearson
- The Hospital for Sick Children, University of TorontoDepartment of Anesthesia and Pain Medicine555 University AvenueTorontoONCanadaM5G 1X8
| | - Alka Kaushal
- Max Rady College of Medicine, University of ManitobaDepartment of Family MedicineWinnipegManitobaCanada
| | - Mark W Crawford
- The Hospital for Sick Children, University of TorontoDepartment of Anesthesia and Pain Medicine555 University AvenueTorontoONCanadaM5G 1X8
| | - Bradley Johnston
- Dalhousie UniversityDepartment of Community Health and Epidemiology5790 University AvenueHalifaxNSCanadaB3H 1V7
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Henningsen MJ, Sort R, Møller AM, Herling SF. Peripheral nerve block in ankle fracture surgery: a qualitative study of patients’ experiences. Anaesthesia 2017; 73:49-58. [DOI: 10.1111/anae.14088] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/05/2017] [Indexed: 11/27/2022]
Affiliation(s)
- M. J. Henningsen
- Department of Anaesthesiology; Herlev and Gentofte University Hospital; Herlev Denmark
| | - R. Sort
- Department of Anaesthesiology; Herlev and Gentofte University Hospital; Herlev Denmark
| | - A. M. Møller
- Department of Anaesthesiology; Herlev and Gentofte University Hospital; Herlev Denmark
| | - S. F. Herling
- Department of Anaesthesiology; Herlev and Gentofte University Hospital; Herlev Denmark
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Baeriswyl M, Kirkham KR, Jacot-Guillarmod A, Albrecht E. Efficacy of perineural vs systemic dexamethasone to prolong analgesia after peripheral nerve block: a systematic review and meta-analysis. Br J Anaesth 2017; 119:183-191. [PMID: 28854551 DOI: 10.1093/bja/aex191] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023] Open
Abstract
Perineural dexamethasone has gained popularity in regional anaesthesia to prolong the duration of analgesia, but its advantage over systemic administration is disputed. The objective of this meta-analysis was to compare the analgesic efficacy of both routes of administration during peripheral nerve block. The methodology followed the PRISMA statement guidelines. The primary outcome was the duration of analgesia analysed according to the type of local anaesthetic administered (bupivacaine or ropivacaine). Secondary outcomes included cumulative opioid consumption in morphine i.v. equivalents, pain scores, and complication rates (neurological complications, infection, or hyperglycaemia). Eleven controlled trials, including 914 patients, were identified. The duration of analgesia was significantly increased with perineural dexamethasone vs systemic dexamethasone by a mean difference of 3 h [95% confidence interval (CI): 1.4, 4.5 h; P=0.0001]. Subgroup analysis revealed that the duration of analgesia was increased by 21% with bupivacaine (mean difference: 4.0 h; 95% CI: 2.8, 5.2 h; P<0.00001) and 12% with ropivacaine (mean difference: 2.0 h; 95% CI: -0.5, 4.5 h; P=0.11). The quality of evidence for our primary outcome was moderate according to the GRADE system. There were no significant differences in other secondary outcomes. No neurological complications or infections were reported. Glucose concentrations were not increased when dexamethasone was injected systemically, but this outcome was reported by only two trials. There is, therefore, moderate evidence that perineural dexamethasone combined with bupivacaine, but not ropivacaine, slightly prolongs the duration of analgesia, without an impact on other pain-related outcomes, when compared with systemic dexamethasone. Injection of perineural dexamethasone should be cautiously balanced in light of the off-label indication for this route of administration.
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Affiliation(s)
- M Baeriswyl
- Department of Anaesthesia, Lausanne University Hospital, Lausanne, Switzerland
| | - K R Kirkham
- Department of Anaesthesia, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada
| | - A Jacot-Guillarmod
- Department of Anaesthesia, Lausanne University Hospital, Lausanne, Switzerland
| | - E Albrecht
- Department of Anaesthesia, Lausanne University Hospital, Lausanne, Switzerland
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24
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Zhao WL, Ou XF, Liu J, Zhang WS. Perineural versus intravenous dexamethasone as an adjuvant in regional anesthesia: a systematic review and meta-analysis. J Pain Res 2017; 10:1529-1543. [PMID: 28740419 PMCID: PMC5505162 DOI: 10.2147/jpr.s138212] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Background Dexamethasone is a common adjuvant for local anesthetics in regional anesthesia, but the optimal route of administration is controversial. Therefore, we did a systematic review and meta-analysis of randomized controlled trials to assess the effect of perineural versus intravenous dexamethasone on local anesthetic regional nerve-blockade outcomes. Materials and methods Medline (through PubMed), Embase, Cochrane, Web of Science, and Biosis Previews databases were systematically searched (published from inception of each database to January 1, 2017) to identify randomized controlled trials. The data of the selected trials were statistically analyzed to find any significant differences between the two modalities. The primary outcome was the duration of analgesia. Secondary outcomes included duration of motor block, postoperative nausea and vomiting, and postoperative analgesic dose at 24 hours. We conducted a planned subgroup analysis to compare the effects between adding epinephrine or not. Results Ten randomized controlled trials met the inclusion criteria of our analysis, with a total of 749 patients. Without the addition of epinephrine, the effects of perineural and intravenous dexamethasone were equivalent concerning the duration of analgesia (mean difference 0.03 hours, 95% CI –0.17 to 0.24). However, with the addition of epinephrine, the analgesic duration of perineural dexamethasone versus intravenous dexamethasone was prolonged (mean difference 3.96 hours, 95% CI 2.66–5.27). Likewise, the impact of epinephrine was the same on the duration of motor block. The two routes of administration did not show any significant differences in the incidence of postoperative nausea and vomiting, nor on postoperative analgesic consumption at 24 hours. Conclusion Our results show that perineural dexamethasone can prolong the effects of analgesic duration when compared to the intravenous route, only when epinephrine is coadministered. Without epinephrine, the two modalities show equivalent effect as adjuvants on regional anesthesia.
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Affiliation(s)
- Wen-Ling Zhao
- Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Centre
| | - Xiao-Feng Ou
- Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Centre
| | - Jin Liu
- Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Centre.,Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
| | - Wen-Sheng Zhang
- Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Centre.,Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
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25
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Baciarello M, Migliavacca G, Marchesini M, Valente A, Allegri M, Fanelli G. Transversus Abdominis Plane Block for the Diagnosis and Treatment of Chronic Abdominal Wall Pain Following Surgery: A Case Series. Pain Pract 2017; 18:109-117. [DOI: 10.1111/papr.12570] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 01/28/2017] [Indexed: 01/09/2023]
Affiliation(s)
- Marco Baciarello
- Anesthesiology, Critical Care and Pain Medicine Division; Department of Medicine and Surgery; University of Parma; Parma Italy
- Study in Multidisciplinary Pain Research (SIMPAR) Group; Parma Italy
| | - Greta Migliavacca
- Anesthesiology, Critical Care and Pain Medicine Division; Department of Medicine and Surgery; University of Parma; Parma Italy
| | - Maurizio Marchesini
- Study in Multidisciplinary Pain Research (SIMPAR) Group; Parma Italy
- Second Unit of Anesthesia, Critical Care and Pain Medicine; University Hospital of Parma; Parma Italy
| | - Adriana Valente
- Anesthesiology, Critical Care and Pain Medicine Division; Department of Medicine and Surgery; University of Parma; Parma Italy
| | - Massimo Allegri
- Anesthesiology, Critical Care and Pain Medicine Division; Department of Medicine and Surgery; University of Parma; Parma Italy
- Study in Multidisciplinary Pain Research (SIMPAR) Group; Parma Italy
| | - Guido Fanelli
- Anesthesiology, Critical Care and Pain Medicine Division; Department of Medicine and Surgery; University of Parma; Parma Italy
- Study in Multidisciplinary Pain Research (SIMPAR) Group; Parma Italy
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26
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Perineural Versus Intravenous Dexamethasone as an Adjuvant for Peripheral Nerve Blocks. Reg Anesth Pain Med 2017; 42:319-326. [DOI: 10.1097/aap.0000000000000571] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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