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Xu Z, Wang Z. MCV-UNet: a modified convolution & transformer hybrid encoder-decoder network with multi-scale information fusion for ultrasound image semantic segmentation. PeerJ Comput Sci 2024; 10:e2146. [PMID: 38983210 PMCID: PMC11232629 DOI: 10.7717/peerj-cs.2146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 05/30/2024] [Indexed: 07/11/2024]
Abstract
In recent years, the growing importance of accurate semantic segmentation in ultrasound images has led to numerous advances in deep learning-based techniques. In this article, we introduce a novel hybrid network that synergistically combines convolutional neural networks (CNN) and Vision Transformers (ViT) for ultrasound image semantic segmentation. Our primary contribution is the incorporation of multi-scale CNN in both the encoder and decoder stages, enhancing feature learning capabilities across multiple scales. Further, the bottleneck of the network leverages the ViT to capture long-range high-dimension spatial dependencies, a critical factor often overlooked in conventional CNN-based approaches. We conducted extensive experiments using a public benchmark ultrasound nerve segmentation dataset. Our proposed method was benchmarked against 17 existing baseline methods, and the results underscored its superiority, as it outperformed all competing methods including a 4.6% improvement of Dice compared against TransUNet, 13.0% improvement of Dice against Attention UNet, 10.5% improvement of precision compared against UNet. This research offers significant potential for real-world applications in medical imaging, demonstrating the power of blending CNN and ViT in a unified framework.
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Affiliation(s)
- Zihong Xu
- Department of Mechanical Engineering, Columbia University, New York, United States of America
| | - Ziyang Wang
- Department of Computer Science, University of Oxford, Oxford, United Kingdom
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Best GT, Tsai EH, Deng Y, Ibekwe SO. Continuous Superficial Parasternal Intercostal Plane Catheters for Poststernotomy Pain Control: A Case Series. A A Pract 2024; 18:e01785. [PMID: 38727098 DOI: 10.1213/xaa.0000000000001785] [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: 07/03/2024]
Abstract
This case series describes the safety and effectiveness of superficial parasternal intercostal plane catheters for poststernotomy pain control in 4 patients who underwent multivessel coronary artery bypass grafting. Patients had reduced sternal pain and opioid consumption while the catheters ran continuously for 72 hours without complications. Our experience suggests the effectiveness of parasternal blocks can be safely prolonged with catheters, and they can be a useful addition to pain management strategies for this patient population.
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Affiliation(s)
- Gavin T Best
- From the Department of Anesthesiology, Baylor College of Medicine, Houston, Texas
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Fallon F, Moorthy A, Skerritt C, Crowe GG, Buggy DJ. Latest Advances in Regional Anaesthesia. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:735. [PMID: 38792918 PMCID: PMC11123025 DOI: 10.3390/medicina60050735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 04/22/2024] [Accepted: 04/26/2024] [Indexed: 05/26/2024]
Abstract
Training and expertise in regional anaesthesia have increased significantly in tandem with increased interest over the past two decades. This review outlines the most recent advances in regional anaesthesia and focuses on novel areas of interest including fascial plane blocks. Pharmacological advances in the form of the prolongation of drug duration with liposomal bupivacaine are considered. Neuromodulation in the context of regional anaesthesia is outlined as a potential future direction. The growing use of regional anaesthesia outside of the theatre environment and current thinking on managing the rebound plane after regional block regression are also discussed. Recent relevant evidence is summarised, unanswered questions are outlined, and priorities for ongoing investigation are suggested.
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Affiliation(s)
- Frances Fallon
- Department of Anaesthesia, Mater Misericordiae University Hospital, Eccles St, D07 WKW8 Dublin, Ireland;
| | - Aneurin Moorthy
- Department of Anaesthesia, National Orthopaedic Hospital Cappagh/Mater Misericordiae University Hospital, Eccles St, D07 WKW8 Dublin, Ireland; (A.M.)
- School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
| | - Conor Skerritt
- Department of Anaesthesia, National Orthopaedic Hospital Cappagh/Mater Misericordiae University Hospital, Eccles St, D07 WKW8 Dublin, Ireland; (A.M.)
| | - Gillian G. Crowe
- Department of Anaesthesia, Cork University Hospital, Wilton, T12 DC4A Cork, Ireland
| | - Donal J. Buggy
- Department of Anaesthesia, Mater Misericordiae University Hospital, Eccles St, D07 WKW8 Dublin, Ireland;
- School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland
- The ESA-IC Oncoanaesthesiology Research Group and Outcomes Research, Cleveland, OH 44195, USA
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Goffin P, Morales L, Jorcano E, Prats-Galino A, Reina MA, Sala-Blanch X. Dislodgment of continuous suprascapular nerve block catheters after physiotherapy: A cadaver study. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2024; 71:291-297. [PMID: 38431047 DOI: 10.1016/j.redare.2024.02.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 10/28/2023] [Indexed: 03/05/2024]
Abstract
BACKGROUND Continuous peripheral nerve blocks are commonly used for pain management. However, the incidence of catheter dislodgement or migration is unclear, and may be underestimated and underreported. Our objective was to assess suprascapular catheter tip positioning before and after routine simulated shoulder physiotherapy manipulation in an anatomical cadaver model. METHOD Eight ultrasound-guided continuous suprascapular nerve block catheters were placed in cryopreserved fresh cadavers. Computed tomography (CT) confirmed the location of the catheter tip after injection of 1 ml of contrast medium. We performed a series of standardized shoulder movements during a simulated shoulder physiotherapy session in cadavers. Following this, we administered 1 ml of methylene blue through the catheters, and then performed anatomical dissections to accurately identify the location of the catheter tips and compare them to their placement prior to the 'physiotherapy'. RESULT CT imaging confirmed the location of the catheter tips at the suprascapular notch in all cases. However, following physiotherapy, 2 catheters (25%) were found to have migrated - specifically, 1 was located in the supraspinatus muscle, and the other was located in the trapezius muscle. CONCLUSION Our findings suggest that catheter dislodgement may occur in approximately 25% of cases following simulated physiotherapy manipulation. However, further research is needed to determine the read incidence of catheter dislodgement in clinical practice.
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Affiliation(s)
- P Goffin
- Master's Degree in Advanced Medical Competencies, Regional Anesthesia Based on Human Anatomy, University of Barcelona, Barcelona, Spain; Department of Anesthesia, MontLegia Hospital, CHC Groupe Santé, Liège, Belgium.
| | - L Morales
- Master in Advanced Medical Skills in Regional Anesthesia based in Anatomy, University of Barcelona, Barcelona, Spain
| | - E Jorcano
- Department of Radiology, Hospital ClÍnic, Barcelona, Spain
| | - A Prats-Galino
- Human Anatomy and Embryology, University of Barcelona, Barcelona, Spain
| | - M A Reina
- CEU-San-Pablo University School of Medicine, Madrid, and Madrid-Montepríncipe University Hospital, Madrid, Spain; Department of Anesthesiology, University of Florida College of Medicine, Gainesville, FL, United States
| | - X Sala-Blanch
- Human Anatomy and Embryology, University of Barcelona, Barcelona, Spain; Department of Anesthesia, Hospital Clínic, Barcelona, Spain
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Hansen CK, Steingrimsdottir GE, Dam M, Nielsen MV, Tanggaard K, Poulsen TD, Lebech M, Børglum J. Anterior quadratus lumborum catheters for elective cesarean section: A double-blind, randomized, placebo-controlled trial. Acta Anaesthesiol Scand 2024; 68:254-262. [PMID: 37800379 DOI: 10.1111/aas.14335] [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: 05/16/2023] [Revised: 09/05/2023] [Accepted: 09/18/2023] [Indexed: 10/07/2023]
Abstract
BACKGROUND Optimizing pain management following cesarean section is crucial for the well-being of both mother and infant. Various types of quadratus lumborum blocks have exhibited reduced opioid consumption and pain scores after cesarean section. However, duration of block effect is relatively short. The aim of this study was to investigate the analgesic efficacy of the anterior quadratus lumborum catheters for cesarean section. METHODS All 32 enrolled participants were allocated to postoperative bilateral ultrasound-guided anterior quadratus lumborum catheter placement with injection of 60 mL ropivacaine 0.375% after cesarean section. Randomization at 2 h resulted in either 60 mL ropivacaine 0.2% or 60 mL isotonic saline injected through the catheters, with subsequent 22-h infusion of either ropivacaine 0.2% or isotonic saline with an infusion rate of 4 mL h-1 per catheter. Participants in the active group received a total of 697 mg ropivacaine during the first 24 h. All participants received the standard postoperative multimodal pain regimen, and a final bilateral injection at 24-h post-catheter placement of 60 mL ropivacaine 0.375% in total. The primary outcome was time to first opioid administration. Secondary outcomes were pain scores, time to first ambulation, nausea and vomiting, accumulated opioid consumption, and catheter displacement rates. RESULTS No significant intergroup differences were observed following the randomized intervention. Median time to first opioid (IQR) was (active vs. placebo) 414 (283, 597) vs. 428 (245, 552) minutes, with a median difference (CI) of -14 (-184 to 262) min, p = .32. CONCLUSION Bilateral anterior quadratus lumborum catheters with continuous infusion did not prolong time to first opioid after elective cesarean section.
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Affiliation(s)
- Christian K Hansen
- Department of Anesthesiology and Intensive Care, Zealand University Hospital, Roskilde, Denmark
| | | | - Mette Dam
- Department of Anesthesiology and Intensive Care, Zealand University Hospital, Roskilde, Denmark
| | - Martin V Nielsen
- Department of Anesthesiology and Intensive Care, Zealand University Hospital, Roskilde, Denmark
| | - Katrine Tanggaard
- Department of Anesthesiology and Intensive Care, Zealand University Hospital, Roskilde, Denmark
| | - Troels D Poulsen
- Department of Anesthesiology and Intensive Care, Zealand University Hospital, Roskilde, Denmark
| | - Morten Lebech
- Department of Gynecology and Obstetrics, Zealand University Hospital, Roskilde, Denmark
| | - Jens Børglum
- Department of Anesthesiology and Intensive Care, Zealand University Hospital, Roskilde, Denmark
- Faculty of Health and Clinical Science, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Kim HJ, Koh KH, Park JI, Kim YJ, Kim MJ, Kim H, Kim H, Ro YJ, Koh WU. Comparison of the Analgesic Efficacy between Arthroscopically Placed Continuous Suprascapular Nerve Block and Ultrasound-guided Continuous Superior Trunk Block: A Double-blinded Randomized Controlled Trial. Anesthesiology 2023; 139:591-601. [PMID: 37450621 DOI: 10.1097/aln.0000000000004691] [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: 07/18/2023]
Abstract
BACKGROUND Single-shot suprascapular nerve block and superior trunk block have been reported to provide a noninferior analgesic effect after shoulder surgery with a lesser incidence of hemidiaphragmatic paresis compared with interscalene brachial plexus block. This study hypothesized that continuous suprascapular nerve block provides noninferior analgesia with minimal effects on diaphragmatic movement compared with continuous superior trunk block in patients undergoing arthroscopic shoulder surgery. METHODS 100 patients were randomized undergoing arthroscopic shoulder surgery between December 2020 and October 2021 into continuous suprascapular nerve block and continuous superior trunk block groups. Before the surgery, patients received either a single-shot superior trunk block or subomohyoid suprascapular nerve block. Thereafter, a superior trunk catheter was inserted by anesthesiologists in patients in the continuous superior trunk block group, and a posterior suprascapular nerve catheter was inserted with arthroscopic assistance during the surgery by surgeon in the continuous suprascapular nerve block group. The primary outcome was the postoperative pain score at postoperative 24 h, and the incidence of hemidiaphragmatic paresis was also compared. RESULTS Overall, 98 patients were included in the final analysis. The worst and resting pain scores at postoperative 24 h in the continuous suprascapular nerve block group were inferior compared with those in the continuous superior trunk block group in the test with a noninferiority margin of 1 (worst pain score: mean difference, 0.9; 95% CI, 0.1 to 1.7; resting pain score: mean difference, 0.5; 95% CI, 0.0 to 1.0). However, the continuous suprascapular nerve block group had a significantly lower incidence of hemidiaphragmatic paresis at postoperative 24 h than the continuous superior trunk block group. CONCLUSIONS Continuous suprascapular nerve block provides statistically inferior analgesia compared to the continuous superior trunk block; however, the continuous suprascapular nerve block had a minimal effect on the phrenic nerve function. EDITOR’S PERSPECTIVE
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Affiliation(s)
- Ha-Jung Kim
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Kyoung Hwan Koh
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ji In Park
- Department of Anesthesiology and Pain Medicine, Bundang Seoul National University Hospital, Kyounggi-do, Korea
| | - Yeon Ju Kim
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Min-Ju Kim
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hyojune Kim
- Department of Orthopedic Surgery, Eulji University Hospital, Daejeon, Korea
| | - Hyungtae Kim
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Young-Jin Ro
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Won Uk Koh
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Hannig KE, Hauritz RW, Bjørn S, Jensen HI, Henriksen CW, Jessen C, Bendtsen TF. Pain relief after major ankle and hindfoot surgery with repetitive peripheral nerve blocks: A feasibility study. Acta Anaesthesiol Scand 2023; 67:1266-1272. [PMID: 37280182 DOI: 10.1111/aas.14289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 05/12/2023] [Accepted: 05/23/2023] [Indexed: 06/08/2023]
Abstract
BACKGROUND Major ankle and hindfoot surgery (e.g., ankle, triple and subtalar arthrodesis) typically causes severe postoperative pain, especially the first two postoperative days. Current modalities of postoperative analgesic treatment often include continuous peripheral nerve blocks of the saphenous and sciatic nerves via catheters in order to extend the duration of pain- and opioid-free nerve blockade to 48 h. Unfortunately, the 48 h-efficacy of continuous infusion via a catheter is reduced by a high displacement rate. We hypothesised that one-time repetition of the single injection peripheral nerve blocks would provide effective analgesia with a low opioid consumption the first 48 postoperative hours. METHODS Eleven subjects preoperatively received a popliteal sciatic and a saphenous single injection nerve block with a protracted local anaesthetic mixture. Surgery was performed under general anaesthesia. The one-time repetition of the single injection nerve block was carried out approximately 24 h after the primary nerve block. The main outcomes were pain and cumulative opioid consumption during the first 48 postoperative hours. RESULTS Nine of the 11 (82%) patients had effective analgesia without opioids during the first 48 postoperative hours. Two patients each required a single dose of 7.5 mg of oral morphine equivalents after 43 h. CONCLUSION One-time repetition of single injection saphenous and sciatic nerve blocks consistently provided effective analgesia practically without opioids for 48 h after major elective ankle and hindfoot surgery.
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Affiliation(s)
- Kjartan E Hannig
- Department of Anaesthesiology, Kolding Hospital, a part of Lillebaelt Hospital, University Hospital of Southern Denmark, Denmark
- Department of Anaesthesiology, Vejle Hospital, a part of Lillebaelt Hospital, University Hospital of Southern Denmark, Denmark
| | - Rasmus W Hauritz
- Department of Anaesthesiology, Kolding Hospital, a part of Lillebaelt Hospital, University Hospital of Southern Denmark, Denmark
| | - Siska Bjørn
- Institute of Clinical Medicine, Health, Aarhus University, Aarhus, Denmark
| | - Hanne Irene Jensen
- Department of Anaesthesiology, Kolding Hospital, a part of Lillebaelt Hospital, University Hospital of Southern Denmark, Denmark
- Department of Anaesthesiology, Vejle Hospital, a part of Lillebaelt Hospital, University Hospital of Southern Denmark, Denmark
| | - Claus W Henriksen
- Department of Orthopaedic Surgery, Kolding Hospital, a part of Lillebaelt Hospital, University Hospital of Southern Denmark, Denmark
| | | | - Thomas F Bendtsen
- Department of Anaesthesiology, Aarhus University Hospital, Aarhus, Denmark
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Arraut J, Thomas J, Oakley C, Umeh UO, Furgiuele DL, Schwarzkopf R. Peripheral Nerve Catheter Reduces Postoperative Opioid Consumption and Pain in Revision Total Knee Arthroplasty. Arthroplast Today 2023; 22:101155. [PMID: 37663072 PMCID: PMC10472143 DOI: 10.1016/j.artd.2023.101155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/22/2023] [Accepted: 05/08/2023] [Indexed: 09/05/2023] Open
Abstract
Background Patients undergoing revision total knee arthroplasty (rTKA) have historically received high doses of opioids during the perioperative period. As awareness of opioid use has heightened, opioid administration has continuously decreased. This study aimed to evaluate if peripheral nerve catheter (PNC) use in rTKA reduces opiate consumption while maintaining similar pain control and postoperative function levels. Methods A retrospective review of 354 patients who underwent rTKA between July 2019 and January 2022 was conducted. Fifty total patients who received an adductor canal PNC were propensity-matched 1:1 to a control group of 50 patients that did not receive a PNC. To assess the primary outcome of opiate consumption, nursing documented opiate administration events were converted into morphine milligram equivalents per 24-hour interval. Postoperative pain and functional status were assessed using the verbal rating scale for pain and the Activity Measure for Post-Acute Care scores, respectively. Results Compared to the control group, the PNC group demonstrated significantly lower overall inpatient opiate consumption (98.68 ± 117.03 vs 176.69 ± 203.47 morphine milligram equivalents; 44.15% decrease, P = .021) and lower verbal rating scale pain scores at 60 to 72 hours postoperatively (4.85 ± 1.24 vs 5.83 ± 1.35; 16.81% decrease, P = .038). There was no significant difference in Activity Measure for Post-Acute Care scores postoperatively (raw score: 19.41 ± 3.61 vs 19.46 ± 3.18; 0.26% decrease, P = .952). Finally, the PNC cohort was significantly less likely to be readmitted within 90 days after surgery (0.0% vs 12.0%; P = .012). Conclusions In rTKA patients, PNC can significantly reduce inpatient opioid consumption while maintaining a comparable functional recovery and superior pain control. Level III Evidence Retrospective Cohort Study.
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Affiliation(s)
- Jerry Arraut
- Department of Orthopedic Surgery, NYU Langone Health, New York, NY, USA
| | - Jeremiah Thomas
- Department of Orthopedic Surgery, NYU Langone Health, New York, NY, USA
| | - Christian Oakley
- Department of Orthopedic Surgery, NYU Langone Health, New York, NY, USA
| | - Uchenna O. Umeh
- Department of Anesthesiology, Critical Care and Pain Medicine, Hospital for Special Surgery, New York, NY, USA
| | - David L. Furgiuele
- Department of Anesthesiology, Perioperative Care, and Pain Medicine, NYU Langone Health, New York, NY, USA
| | - Ran Schwarzkopf
- Department of Orthopedic Surgery, NYU Langone Health, New York, NY, USA
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Arraut J, Thomas J, Oakley CT, Barzideh OS, Rozell JC, Schwarzkopf R. The AAHKS Best Podium Presentation Research Award: A Second Dose of Dexamethasone Reduces Postoperative Opioid Consumption and Pain in Total Joint Arthroplasty. J Arthroplasty 2023:S0883-5403(23)00098-0. [PMID: 36775214 DOI: 10.1016/j.arth.2023.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 01/30/2023] [Accepted: 02/03/2023] [Indexed: 02/14/2023] Open
Abstract
BACKGROUND The optimal administration of dexamethasone for postoperative pain management and recovery following primary elective total joint arthroplasty (TJA) remains unclear. This study aimed to evaluate the effect of a second intravenous (IV) dose of dexamethasone on postoperative pain scores, inpatient opioid consumption, and functional recovery after total hip arthroplasty (THA) and total knee arthroplasty (TKA). METHODS A retrospective review was conducted of 2,256 primary elective THAs and 1,951 primary elective TKAs between May 2020 and April 2021. Patients who received 2 perioperative doses (2D) of dexamethasone 10 mg IV were propensity-matched 1:1 to a control group who received 1 perioperative dose (1D). Primary outcomes were opiate consumption as morphine milligram equivalences (MMEs), postoperative pain as Verbal Rating Scale (VRS) pain scores, and functional status assessed by the Activity Measure for Post-Acute Care (AM-PAC) scores. RESULTS The 2D THA and 2D TKA cohorts consumed significantly less opiates at the 24 to 48-hour and 48 to 72-hour intervals. The 2D TKA cohort had significantly lower total opiate consumption compared to the 1D TKA cohort. Compared to the 1D cohorts, the 2D THA cohort and 2D TKA cohorts had significantly lower pain scores at the 48 to 60-hour interval; additionally, the 2D TKA cohort had significantly lower pain scores in the 36 to 48-hour interval. AM-PAC scores did not differ between cohorts for both TKA and THA at any interval. CONCLUSION The administration of a second perioperative dexamethasone dose significantly decreased opioid consumption in the immediate postoperative period. Inpatient opioid administration can be significantly reduced while maintaining comparable functional recovery and superior pain control. LEVEL III EVIDENCE Retrospective Cohort Study.
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Affiliation(s)
- Jerry Arraut
- Department of Orthopedic Surgery, NYU Langone Health, New York, New York
| | - Jeremiah Thomas
- Department of Orthopedic Surgery, NYU Langone Health, New York, New York
| | - Christian T Oakley
- Department of Orthopedic Surgery, NYU Langone Health, New York, New York
| | - Omid S Barzideh
- Department of Orthopedic Surgery, NYU Langone Health, Mineola, New York
| | - Joshua C Rozell
- Department of Orthopedic Surgery, NYU Langone Health, New York, New York
| | - Ran Schwarzkopf
- Department of Orthopedic Surgery, NYU Langone Health, New York, New York
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Hussain N, Brull R, Zhou S, Schroell R, McCartney C, Sawyer T, Abdallah FW. Analgesic benefits of single-shot versus continuous adductor canal block for total knee arthroplasty: a systemic review and meta-analysis of randomized trials. Reg Anesth Pain Med 2023; 48:49-60. [PMID: 36351742 DOI: 10.1136/rapm-2022-103756] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 10/21/2022] [Indexed: 11/11/2022]
Abstract
BACKGROUND Adductor canal block (ACB) can provide important analgesic benefits following total knee arthroplasty (TKA), however, the extent to which these benefits can be enhanced or prolonged by a continuous catheter-based infusion compared with a single-shot injection of local anesthetic is unclear. OBJECTIVES This systematic review and meta-analysis (PROSPERO: CRD42021292738) review sought to compare the analgesic effectiveness of single shot to continuous ACB following TKA. EVIDENCE REVIEW We sought randomized trials from the US National Library of Medicine database (MEDLINE), Excerpta Medica database (EMBASE), and Cochrane Database of Systematic Reviews from inception to November 1, 2021, that compared single-shot to continuous ACB in adult patients undergoing TKA. The primary outcomes were (1) area under the curve (AUC) pain severity at rest and (2) cumulative opioid (oral morphine equivalent) consumption during the first 48 hours postoperatively. Secondary outcomes included postoperative pain severity scores up to 48 hours, cumulative opioid consumption at 24 hours, functional recovery, opioid-related side effects, and block-related complications. Risk of bias of included studies was assessed using the Cochrane risk of bias tool. Statistical pooling was conducted using the Hartung-Knapp-Sidik-Jonkman method for random effects. No funding was obtained for this review. FINDINGS Eleven trials (1185 patients) were included. No differences were observed in rest pain severity (AUC) or cumulative opioid consumption up to 48 hours postoperatively. In addition, no differences were observed in individual postoperative rest pain scores in the recovery room and at 12 and 24 hours, or in cumulative opioid consumption at 24 hours, functional recovery, and opioid-related side effects. Finally, fewer block-related complications were observed with single-shot ACB, with an OR (95% CI) of 0.24 (0.14 to 0.41) (p=0.002). CONCLUSIONS Our results suggest that continuous catheter-based ACB does not enhance or prolong the analgesic benefits when compared with single-shot ACB for TKA over the first 48 hours postoperatively. Overall, the results of our meta-analysis do not support the routine use of continuous ACB for postoperative analgesia after TKA.
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Affiliation(s)
- Nasir Hussain
- Anesthesiology, Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Richard Brull
- Department of Anesthesiology and Pain Medicine, Women's College Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Steven Zhou
- Anesthesiology, Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Robert Schroell
- Anesthesiology, Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Colin McCartney
- Department of Anesthesia and Pain Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Tamara Sawyer
- Central Michigan University College of Medicine, Mount Pleasant, Michigan, USA
| | - Faraj W Abdallah
- Department of Anesthesia and Pain Medicine, University of Ottawa, Ottawa, Ontario, Canada
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11
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Tafoya SP, Tumber SS. The Use of Multimodal Perineural Adjuvants in Pediatric Peripheral Nerve Blocks: Technique and Experiences. Cureus 2022; 14:e23186. [PMID: 35444912 PMCID: PMC9010002 DOI: 10.7759/cureus.23186] [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: 03/15/2022] [Indexed: 11/05/2022] Open
Abstract
Background Postoperative pain management in pediatric population can be very challenging. How to prolong the duration of single-injection peripheral nerve blocks has been widely discussed. Multiple medications are under investigation to accomplish this, yet data specifically focused on their use in pediatric peripheral nerve blocks are limited. Methods Anesthetic electronic medical records were queried for any instances where adjuvant drug(s) were used in peripheral nerve blocks during a two-year period at a pediatric surgical specialty hospital. These included buprenorphine, clonidine, dexamethasone, and dexmedetomidine. Results Out of 1,845 blocks placed during the study period, 1,148 (62.2%) utilized perineural adjuvants. Buprenorphine as a sole agent was the most common choice (49.5%), followed by buprenorphine and dexmedetomidine combined (39.9%), dexmedetomidine alone (10.1%), and the rare combination of all three drugs, buprenorphine, dexmedetomidine, and dexamethasone (0.5%). The mean dose of buprenorphine given was 3.6 mcg/kg total, 2.8 mcg/kg/block. The mean dose of dexmedetomidine given was 0.9 mcg/kg total, 0.6 mcg/kg/block. The mean dose of dexamethasone utilized was 2 mg total, 1 mg/block. Conclusions This report examined one institution’s use of multimodal perineural adjuvants in over 1,000 pediatric peripheral nerve blocks. Buprenorphine was the agent most commonly used to prolong the single-injection peripheral nerve block. This highlights the need for future prospective trials evaluating efficacy and safety.
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12
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Bhoi D, Rani P, Sinha R, Datchinsmourthy T. An alternative technique for assisting continuous catheter placement. J Anaesthesiol Clin Pharmacol 2022; 38:518-519. [PMID: 36505225 PMCID: PMC9728445 DOI: 10.4103/joacp.joacp_306_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 03/07/2021] [Indexed: 11/07/2022] Open
Affiliation(s)
- Debesh Bhoi
- Department of Anaesthesia, All India Institute of Medical Sciences, New Delhi, India,Address for correspondence: Dr. Debesh Bhoi, Department of Anaesthesiology, Pain Medicine and Critical Care, Room No. 5012, 5th Floor, Teaching Block, All India Institute of Medical Sciences, New Delhi, India. E-mail:
| | - Poonam Rani
- Department of Anaesthesia, All India Institute of Medical Sciences, New Delhi, India
| | - Renu Sinha
- Department of Anaesthesia, All India Institute of Medical Sciences, New Delhi, India
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García-López J, Polanco-García M, Montes A. Factors Associated With the Risk of Developing Moderate to Severe Acute Postoperative Pain After Primary Total Knee Arthroplasty: Results From the PAIN OUT Registry. J Arthroplasty 2021; 36:1966-1973. [PMID: 33637382 DOI: 10.1016/j.arth.2021.02.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/08/2021] [Accepted: 02/01/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Total knee arthroplasty (TKA) is one of the most common procedures in orthopedic surgery and not always matches with patient's expectations of pain relief and function improvement. The aim of this study was to assess risk factors for developing moderate to severe acute postoperative pain (APOP) after TKA using the PAIN OUT questionnaire. METHODS Prospective, multicentre, international cohort study within the PAIN OUT project. Patients' outcomes were measured with 11-point numerical rating scales (0 = null, 10 = worst possible). Patient and analgesic/anesthetic treatment were assessed. Odds ratio for moderate-severe pain was calculated for each variable and if they were statistically significant in the univariate logistic model, variables were fitted into a multivariate logistic regression model. The effect size was assessed by Cohen's d coefficient. RESULTS In total, 968 patients were evaluated. The multivariate model identified chronic preoperative pain (P < .001), general anesthesia (P = .020), and receiving chronic opioids before (P = .020) or after the surgery (P < .001) as factors associated with moderate-severe APOP. No protective factors were observed. CONCLUSIONS Our model identified several risk factors for APOP. From our results, preoperative chronic pain, general anesthesia and the use of opioid analgesics could be predictors for higher APOP. These findings may help establish new strategies for the treatment of pain in TKR. More studies should be carried out to identify acute pain predictors and to develop better strategies of pain management for risk patients.
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Affiliation(s)
- Jaume García-López
- Department of Anaesthesiology IMIM-Hospital del Mar-UAB, Barcelona, Spain
| | | | - Antonio Montes
- Department of Anaesthesiology IMIM-Hospital del Mar-UAB, Barcelona, Spain
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Ghaffari A, Jørgensen MK, Rømer H, Sørensen MPB, Kold S, Rahbek O, Bisgaard J. Does the performance of lower limb peripheral nerve blocks differ among orthopedic sub-specialties? A single institution experience in 246 patients. Scand J Pain 2021; 21:794-803. [PMID: 34062627 DOI: 10.1515/sjpain-2021-0029] [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: 02/11/2021] [Accepted: 04/27/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Continuous peripheral nerve blocks (cPNBs) have shown promising results in pain management after orthopaedic surgeries. However, they can be associated with some risks and limitations. The purpose of this study is to describe our experience with the cPNBs regarding efficacy and adverse events in patients undergoing orthopedic surgeries on the lower extremity in different subspecialties. METHODS This is a prospective cohort study on collected data from perineural catheters for pain management after orthopedic surgeries in lower limbs. Catheters were placed by experienced anesthesiologists using sterile technique. After an initial bolus dose of 10-20 mL ropivacaine 0.5% (weight adjusted), the catheters were secured and connected to disposable mechanical infusion pumps with ropivacaine 0.2% (basal infusion rate = 6 mL/h; weight adjusted (0.2 mL/kg/h)). After catheterization, the patients were examined daily, by specially educated acute pain service nurses. Pro re nata (PRN) or fixed boluses (10 mL bupivacaine 0.25%; weight adjusted) with an upper limit of 4 times/day, were administered if indicated. Patients' demographic data, physiological status, and pre-op intake of opioids and other analgesics were registered. The severity of post-operative pain was assessed with 'Numeric Rating Scale' (NRS) and 'Face, legs, Activity, Cry, Consolability' (FLACC) scale for adults and children, respectively. The need for additional opioids and possible complications were registered. RESULTS We included 547 catheters of 246 patients (Range 1-10 catheters per patient). Overall, 115 (21%) femoral, 162 (30%) saphenous, 66 (12%) sciatic, and 204 (37%) popliteal sciatic nerve catheter were used. 452 (83%) catheters were inserted by a primary procedure, 61(11%) catheters employed as a replacement, and 34 catheters (6.2%) used as a supplement. For guiding the catheterization, ultrasound was applied in 451 catheters (82%), nerve stimulator in 90 catheters (16%), and both methods in 6 catheters (1.1%). The median duration a catheter remained in place was 3 days (IQR = 2-5). The proportion of catheters with a duration of two days was 81, 79, 73, and 71% for femoral, sciatic, saphenous, and popliteal nerve, respectively. In different subspecialties, 91% of catheters in wound and amputations, 89% in pediatric surgery, 76% in trauma, 64% in foot and ankle surgery, and 59% in limb reconstructive surgery remained more than two days. During first 10 days after catheterization, the proportion of pain-free patients were 77-95% at rest and 63-88% during mobilization, 79-92% of the patients did not require increased opioid doses, and 50-67% did not require opioid PRN doses. In addition to 416 catheters (76%), which were removed as planned, the reason for catheter removal was leaving the hospital in 27 (4.9%), loss of efficacy in 69 (13%), dislodgement in 23 (4.2%), leakage in 8 (1.5%), and erythema in 4 catheters (0.73%). No major complication occurred. CONCLUSIONS After orthopaedic procedures, cPNBs can be considered as an efficient method for improving pain control and minimizing the use of additional opioids. However, the catheters sometimes might need to be replaced to achieve the desired efficacy.
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Affiliation(s)
- Arash Ghaffari
- Interdisciplinary Orthopaedics, Aalborg University Hospital, Aalborg, Denmark
| | | | - Helle Rømer
- Orthopedic Anaestesia Department, Aalborg University Hospital, Aalborg, Denmark
| | | | - Søren Kold
- Interdisciplinary Orthopaedics, Aalborg University Hospital, Aalborg, Denmark
| | - Ole Rahbek
- Interdisciplinary Orthopaedics, Aalborg University Hospital, Aalborg, Denmark
| | - Jannie Bisgaard
- Orthopedic Anaestesia Department, Aalborg University Hospital, Aalborg, Denmark
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Roy M, Ramdoyal N, Meouchy M, Garneau S, Robin F. A retrospective evaluation of the failure rate of continuous infraclavicular nerve blockade in the ambulatory setting. Can J Anaesth 2021; 68:1281-1282. [PMID: 33977504 DOI: 10.1007/s12630-021-02021-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/21/2021] [Accepted: 04/24/2021] [Indexed: 11/26/2022] Open
Affiliation(s)
- Maxim Roy
- Department of Anesthesiology, Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, QC, Canada.
| | - Nilesh Ramdoyal
- Department of Anesthesiology, Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, QC, Canada
| | - Michelle Meouchy
- Department of Anesthesiology, Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, QC, Canada
| | - Sébastien Garneau
- Department of Anesthesiology, Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, QC, Canada
| | - Florian Robin
- Department of Anesthesiology, Centre Hospitalier de l'Université de Montréal (CHUM), Montreal, QC, Canada
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Muñoz-Leyva F, Cubillos J, Chin KJ. Managing rebound pain after regional anesthesia. Korean J Anesthesiol 2020; 73:372-383. [PMID: 32773724 PMCID: PMC7533186 DOI: 10.4097/kja.20436] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 12/19/2022] Open
Abstract
Rebound pain after regional anesthesia can be defined as transient acute postoperative pain that ensues following resolution of sensory blockade, and is clinically significant, either with regard to the intensity of pain or the impact on psychological well-being, quality of recovery, and activities of daily living. Current evidence suggests that it represents an unmasking of the expected nociceptive response in the absence of adequate systemic analgesia, rather than an exaggerated hyperalgesic phenomenon induced by local anesthetic neural blockade. In the majority of patients, it does not appear to significantly impact cumulative postoperative opioid consumption, quality of recovery, or patient satisfaction, and is not associated with longer-term sequelae such as persistent post-surgical pain. Nevertheless, it must be considered whenever regional anesthesia is incorporated into perioperative management. Strategies to mitigate the impact of rebound pain include routine prescribing of a systemic multimodal analgesic regimen, as well as patient education on appropriate expectations regarding block offset and expected surgical pain, and timely initiation of analgesic medication. Prolonging the duration of action of regional anesthesia with continuous catheter techniques or local anesthetic adjuncts may also help alleviate rebound pain, although further research is required to confirm this.
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Affiliation(s)
- Felipe Muñoz-Leyva
- Department of Anesthesiology and Pain Medicine, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Javier Cubillos
- Department of Anesthesia and Perioperative Medicine, University Hospital, London Health Sciences Center, Western University, London, ON, Canada
| | - Ki Jinn Chin
- Department of Anesthesiology and Pain Medicine, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
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