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Gao T, Wang Y, Zheng Y, Yu Y, Li Q, Zhang L. Quadratus lumborum block vs. transversus abdominis plane block for postoperative pain control in patients with nephrectomy: A systematic review and network meta-analysis. J Clin Anesth 2024; 95:111453. [PMID: 38531283 DOI: 10.1016/j.jclinane.2024.111453] [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: 11/16/2023] [Revised: 02/04/2024] [Accepted: 03/20/2024] [Indexed: 03/28/2024]
Abstract
STUDY OBJECTIVE This systematic review and network meta-analysis aimed to compare the analgesic efficacy of transversus abdominis plane block (TAPB) and quadratus lumborum block (QLB) on nephrectomy. DESIGN Systematic review and network meta-analysis. PATIENTS Patients undergoing nephrectomy. INTERVENTIONS TAPB and QLB for postoperative analgesia. MEASUREMENTS The primary outcome was 24 h morphine-equivalent consumptions after surgery. Secondary outcomes included postoperative pain scores, postoperative opioid consumption, postoperative rescue analgesia, postoperative nausea and vomiting (PONV), length of hospital stay after surgery, and patient satisfaction. MAIN RESULTS Fourteen studies involving 883 patients were included. Seven studies compared TAPB to control, six studies compared QLB to control, and one study compared TAPB to QLB. For direct meta-analysis of the post-surgical 24 h morphine-equivalent consumption, QLB was lower than control (mean difference [95%CI]: -18.16 [-28.96, -7.37]; I2 = 88%; p = 0.001), while there was no difference between TAPB and control (mean difference [95%CI]: -8.34 [-17.84, 1.17]; I2 = 88%; p = 0.09). Network meta-analysis showed similar findings that QLB was ranked as the best anesthetic technique for reducing postoperative 24 h opioid consumption (p-score = 0.854). Moreover, in direct meta-analysis, as compared to control, the time of first postoperative rescue analgesia was prolonged after QLB (mean difference [95%CI]: 165.00 [128.99, 201.01]; p < 0.00001), but not TAPB (mean difference [95%CI]: 296.82 [-91.92, 685.55]; p = 0.13). Meanwhile, QLB can effectively reduce opioid usages at intraoperative period, as well as at postoperative 6 h and 48 h, while TAPB can only reduce opioid consumption at 6 h after surgery. As compared to control, both TAPB and QLB exhibited the reduction in PONV and pain scores at post-surgical some timepoints. Also, QLB (mean difference [95%CI]: -0.29 [-0.49, -0.08]; p = 0.006) but not TAPB (mean difference [95%CI]: 0.60 [-0.25, 1.45]; p = 0.17) exhibited the shorter postoperative length of hospital stay than control. CONCLUSIONS QLB is more likely to be effective in reducing postoperative opioid use than TAPB, whereas both of them are superior to control with regard to the reduction in postoperative pain intensity and PONV. TRIAL REGISTRATION PROSPERO identifier: CRD42022358464.
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Affiliation(s)
- Tianyu Gao
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin 300052, China; Tianjin Research Institute of Anesthesiology, Tianjin 300052, China
| | - Yigang Wang
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin 300052, China; Tianjin Research Institute of Anesthesiology, Tianjin 300052, China
| | - Yuxin Zheng
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin 300052, China; Tianjin Research Institute of Anesthesiology, Tianjin 300052, China
| | - Yonghao Yu
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin 300052, China; Tianjin Research Institute of Anesthesiology, Tianjin 300052, China
| | - Qing Li
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin 300052, China; Tianjin Research Institute of Anesthesiology, Tianjin 300052, China.
| | - Linlin Zhang
- Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin 300052, China; Tianjin Research Institute of Anesthesiology, Tianjin 300052, China.
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2
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Qin PP, Zou BY, Liu D, Li MX, Liu XN, Wei K. Lateral quadratus lumborum block vs acupuncture for postcesarean analgesia: a randomized clinical trial. Am J Obstet Gynecol MFM 2024; 6:101433. [PMID: 39019211 DOI: 10.1016/j.ajogmf.2024.101433] [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: 03/15/2024] [Revised: 06/27/2024] [Accepted: 07/04/2024] [Indexed: 07/19/2024]
Abstract
BACKGROUND Improved pain control after cesarean section remains a challenging objective. Although both the lateral quadratus lumborum block (L-QLB) and acupuncture have been reported to provide superior postoperative analgesia after cesarean section when compared to placebo, the efficacy of these techniques has never been compared head-to-head. OBJECTIVE This study was conducted to investigate the comparative analgesic efficacy of L-QLB and acupuncture following elective cesarean section. STUDY DESIGN In this prospective, randomized, controlled clinical trial, a total of 190 patients with singleton-term pregnancies scheduled for cesarean section under spinal-epidural anesthesia were enrolled. Patients were randomized 1:1 to acupuncture group or L-QLB group. L-QLB group received bilateral L-QLB with 0.33% ropivacaine and sham acupuncture, acupuncture group received transcutaneous electrical acupoint stimulation and press needle therapy, and sham L-QLB. All patients received the standard postoperative pain treatment. The primary outcome was pain scores on movement at 24 hours. Secondary endpoints included pain scores in the first 48 hours postoperatively, patient-controlled intravenous analgesia (PCIA) demands, analgesia-related adverse effects, postoperative complications, QoR-15, the time to mobilization, and gastrointestinal function. RESULTS Median (interquartile range [range]) pain scores at 24 hours on movement were similar in patients receiving acupuncture or L-QLB (3 [2-4] vs 3 [2-4], respectively; P=.40). PCIA consumption and pain scores within 48 hours postoperatively also showed no difference between the two groups. The acupuncture improved QoR-15 scores at 24 and 48 hours postoperatively (P<.001), as well as shortened the time to first flatus (P=.03) and first drinking (P<.001) compared to L-QLB. In addition, the median time to mobilization in the L-QLB group was markedly prolonged compare with acupuncture group (17.0 [15.0-19.0] hours vs 15.3 [13.3-17.0] hours, estimated median difference, 1.5; 95% CI, 1-2; P<.001). CONCLUSION As a component of multimodal analgesia regimen after cesarean section, acupuncture did not lower postoperative pain scores or reduce analgesic medication consumption compared to L-QLB.
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Affiliation(s)
- Pei-Pei Qin
- The Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Bing-Yu Zou
- The Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dan Liu
- The Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ming-Xi Li
- The Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiao-Nan Liu
- The Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ke Wei
- The Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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Ní Eochagáin A, Carolan S, Buggy DJ. Regional anaesthesia truncal blocks for acute postoperative pain and recovery: a narrative review. Br J Anaesth 2024; 132:1133-1145. [PMID: 38242803 DOI: 10.1016/j.bja.2023.12.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 10/22/2023] [Accepted: 12/04/2023] [Indexed: 01/21/2024] Open
Abstract
Significant acute postoperative pain remains prevalent among patients who undergo truncal surgery and is associated with increased morbidity, prolonged patient recovery, and increased healthcare costs. The provision of high-quality postoperative analgesia is an important component of postoperative care, particularly within enhanced recovery programmes. Regional anaesthetic techniques have become increasingly prevalent within multimodal analgesic regimens and the widespread adoption of ultrasonography has facilitated the development of novel fascial plane blocks. The number of described fascial plane blocks has increased significantly over the past decade, leading to a burgeoning area of clinical investigation. Their applications are increasing, and truncal fascial plane blocks are increasingly recommended as part of procedure-specific guidelines. Some fascial plane blocks have been shown to be more efficacious than others, with favourable side-effect profiles compared with neuraxial analgesia, and are increasingly utilised in breast, thoracic, and other truncal surgery. However, use of these blocks is debated in regional anaesthesia circles because of limitations in our understanding of their mechanisms of action. This narrative review evaluates available evidence for the analgesic efficacy of the most commonly practised fascial plane blocks in breast, thoracic, and abdominal truncal surgery, in particular their efficacy compared with systemic analgesia, alternative blocks, and neuraxial techniques. We also highlight areas where investigations are ongoing and suggest priorities for original investigations.
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Affiliation(s)
- Aisling Ní Eochagáin
- Department of Anaesthesiology & Perioperative Medicine, Mater University Hospital, School of Medicine, University College Dublin, Dublin, Ireland; Outcomes Research, Cleveland Clinic, Cleveland, OH, USA.
| | - Seán Carolan
- Department of Anaesthesiology & Perioperative Medicine, Mater University Hospital, School of Medicine, University College Dublin, Dublin, Ireland
| | - Donal J Buggy
- Department of Anaesthesiology & Perioperative Medicine, Mater University Hospital, School of Medicine, University College Dublin, Dublin, Ireland; Outcomes Research, Cleveland Clinic, Cleveland, OH, USA; Euro-Periscope, The ESA-IC Oncoanaesthesiology Research Group, Europe
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4
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Ferguson JE, Tubog TD, Johnson W, Evans H, Furstein J. Quadratus Lumborum Block and Transversus Abdominis Plane Block in Non-emergency Cesarean Delivery: A Systematic Review and Meta-analysis. J Perianesth Nurs 2024; 39:226-234. [PMID: 37865903 DOI: 10.1016/j.jopan.2023.07.017] [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: 12/07/2022] [Revised: 07/22/2023] [Accepted: 07/23/2023] [Indexed: 10/23/2023]
Abstract
PURPOSE Investigate the analgesic efficacy of quadratus lumborum (QL) block versus transversus abdominis plane (TAP) block in postoperative pain management in nonemergent cesarean section. DESIGN Systematic review with meta-analysis. METHODS PubMed, Cochrane, CINAHL, Google Scholar, and gray literature were searched for evidence. Only randomized controlled trials examining the effects of QL and TAP block for nonemergent cesarean delivery were included. Mean difference (MD) was used to estimate continuous outcomes with appropriate effect models. The quality of evidence was rated using the Risk of Bias and Grading of Recommendations, Assessment, Development, and Evaluations (GRADE) system. FINDINGS Six studies involving 543 parturients were included. Compared to the TAP block, the cumulative 24-hour pain score at rest (MD, -0.60; 95% CI, -1.03 to -0.17; P = .007) and during activity (MD, -1.05; 95% CI, -1.54 to -0.56; P < .0001) were significantly lower in QL block. Time to the first analgesic rescue (MD, 21.67; 95% CI, -18.58 to 61.91; P = .29) and opioid consumption (MD, -1.96; 95% CI, -4.59 to 0.66; P = .14) were similar in both groups. No difference was found in the incidence of postoperative nausea and vomiting and sedation. However, patients treated with QL block reported higher patient satisfaction scores. CONCLUSIONS There is limited evidence to suggest that QL block is superior to TAP block for postoperative pain management in nonemergent cesarean delivery. The study limitations must be considered when extrapolating the review's findings to clinical practice.
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Affiliation(s)
- Jeffery E Ferguson
- Graduate Programs of Nurse Anesthesia, Middle Tennessee School of Anesthesia, Madison, TN.
| | - Tito D Tubog
- Graduate Programs of Nurse Anesthesia, Texas Wesleyan University, Fort Worth, TX
| | - William Johnson
- Graduate Programs of Nurse Anesthesia, Middle Tennessee School of Anesthesia, Madison, TN
| | - Hallie Evans
- Graduate Programs of Nurse Anesthesia, Middle Tennessee School of Anesthesia, Madison, TN
| | - James Furstein
- Graduate Programs of Nurse Anesthesia, Middle Tennessee School of Anesthesia, Madison, TN
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5
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Silverman M, Zwolinski N, Wang E, Lockwood N, Ancuta M, Jin E, Li J. Regional Analgesia for Cesarean Delivery: A Narrative Review Toward Enhancing Outcomes in Parturients. J Pain Res 2023; 16:3807-3835. [PMID: 38026463 PMCID: PMC10644837 DOI: 10.2147/jpr.s428332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 10/28/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction With the current surge on peripheral nerve blocks in post-cesarean pain management and the historical lack of unequivocal evidence supporting its universal use, this review intended to re-examine the extended scope of literature on regional anesthesia and postoperative analgesia in low-transverse cesarean section. Methods A literature search was conducted up to April 2023 using PubMed to identify articles relevant to our search words "cesarean section", "neuraxial morphine", "post-cesarean analgesia", as well as the name of each individual nerve block. The literature search was ultimately narrowed to systematic reviews and randomized controlled trials published between 2012 and 2023. We define, describe, and discuss the evidence surrounding each individual regional anesthetic technique in the presence and absence of intrathecal morphine, which is used as the gold standard when appropriate. Results In the absence of neuraxial morphine, all regional anesthetic techniques have some level of analgesic benefit in the post-cesarean analgesia. Transversus Abdominis Plane blocks continue to have the most studies in their use. Newer fascia plane blocks including the anterior Quadratus Lumborum, and Erector Spinae Plane blocks provide significant analgesia. In addition, direct comparison among peripheral nerve blocks consistently favors the more proximal, centralized techniques. Conversely, in the presence of neuraxial morphine, no peripheral anesthetic technique has reliably and reproducibly demonstrated an added analgesic benefit regardless of the peripheral nerve block technique or location of local anesthetic injection in the post-cesarean population. Conclusion Neuraxial morphine continues to be the gold standard for post-cesarean section analgesia, the benefit of additional single injection regional anesthetic is currently not evidence supported. In cases where neuraxial opioids have not or cannot be given, there is overwhelming evidence that regional anesthetic techniques improve post-cesarean section analgesia and decrease post-operative opioid consumption. Even though there is no consensus on the optimal peripheral nerve block, emerging evidence suggests more centralized abdominal fascia plane block trends towards better analgesia.
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Affiliation(s)
- Matthew Silverman
- Department of Anesthesiology, Yale University School of Medicine, New Haven, CT, USA
| | - Nicholas Zwolinski
- Department of Anesthesiology, Yale University School of Medicine, New Haven, CT, USA
| | - Ethan Wang
- Yale University School of Medicine, New Haven, CT, USA
| | - Nishita Lockwood
- Department of Anesthesiology, Yale University School of Medicine, New Haven, CT, USA
| | - Michael Ancuta
- Department of Anesthesiology, Yale University School of Medicine, New Haven, CT, USA
| | - Evan Jin
- Department of Anesthesiology, Yale University School of Medicine, New Haven, CT, USA
| | - Jinlei Li
- Department of Anesthesiology, Yale University School of Medicine, New Haven, CT, USA
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6
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Zanolli NC, Fuller ME, Krishnamoorthy V, Ohnuma T, Raghunathan K, Habib AS. Opioid-Sparing Multimodal Analgesia Use After Cesarean Delivery Under General Anesthesia: A Retrospective Cohort Study in 729 US Hospitals. Anesth Analg 2023; 137:256-266. [PMID: 36947464 DOI: 10.1213/ane.0000000000006428] [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: 03/23/2023]
Abstract
BACKGROUND Optimizing analgesia after cesarean delivery is essential to quality of patient recovery. The American Society of Anesthesiologists and the Society for Obstetric Anesthesia and Perinatology recommend multimodal analgesia (MMA). However, little is known about clinical implementation of these guidelines after cesarean delivery under general anesthesia (GA). We performed this study to describe the use of MMA after cesarean delivery under GA in the United States and determine factors associated with use of MMA, variation in analgesia practice across hospitals, and trends in MMA use over time. METHODS A retrospective cohort study of women over 18 years who had a cesarean delivery under GA between 2008 and 2018 was conducted using the Premier Healthcare database (Premier Inc). The primary outcome was utilization of opioid-sparing MMA (osMMA), defined as receipt of nonsteroidal anti-inflammatory drugs (NSAIDs) and acetaminophen with or without opioids and without the use of an opioid-combination drug. Any use of either agent within a combination preparation was not considered osMMA. The secondary outcome was use of optimal opioid-sparing MMA (OosMMA), defined as use of a local anesthetic technique such as truncal block or local anesthetic infiltration in addition to osMMA. Mixed-effects logistic regression models were used to examine factors associated with use of osMMA, as well as variation across hospitals. RESULTS A total of 130,946 patients were included in analysis. osMMA regimens were used in 11,133 patients (8.5%). Use of osMMA increased from 2.0% in 2008 to 18.8% in 2018. Black race (7.9% vs 9.3%; odds ratio [OR] [95% confidence interval {CI}] 0.87 [0.81-0.94]) and Hispanic ethnicity (8.6% vs 10.0%; OR, 0.86 [0.79-0.950]) were associated with less receipt of osMMA compared to White and non-Hispanic counterparts. Medical comorbidities were generally not associated with receipt of osMMA, although patients with preeclampsia were less likely to receive osMMA (9.0%; OR, 0.91 [0.85-0.98]), while those with a history of drug abuse (12.5%; OR, 1.42 [1.27-1.58]) were more likely to receive osMMA. There was moderate interhospital variability in the use of osMMA (intraclass correlation coefficient = 38%). OosMMA was used in 2122 (1.6%) patients, and utilization increased from 0.8% in 2008 to 4.1% in 2018. CONCLUSIONS Variation in osMMA utilization was observed after cesarean delivery under GA in this cohort of US hospitals. While increasing trends in utilization of osMMA and OosMMA are encouraging, there is need for increased attention to postoperative analgesia practices after GA for cesarean delivery given low percentage of patients receiving osMMA and OosMMA.
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Affiliation(s)
- Nicole C Zanolli
- From the Duke University School of Medicine, Durham, North Carolina
| | - Matthew E Fuller
- Department of Anesthesiology, Duke University School of Medicine, Durham, North Carolina
- Critical Care and Perioperative Population Health Research (CAPER) Unit, Department of Anesthesiology, Duke University School of Medicine, Durham, North Carolina
| | - Vijay Krishnamoorthy
- Department of Anesthesiology, Duke University School of Medicine, Durham, North Carolina
- Critical Care and Perioperative Population Health Research (CAPER) Unit, Department of Anesthesiology, Duke University School of Medicine, Durham, North Carolina
- Department of Population Health Sciences, Duke University School of Medicine, Durham, North Carolina
| | - Tetsu Ohnuma
- Department of Anesthesiology, Duke University School of Medicine, Durham, North Carolina
- Critical Care and Perioperative Population Health Research (CAPER) Unit, Department of Anesthesiology, Duke University School of Medicine, Durham, North Carolina
| | - Karthik Raghunathan
- Department of Anesthesiology, Duke University School of Medicine, Durham, North Carolina
- Critical Care and Perioperative Population Health Research (CAPER) Unit, Department of Anesthesiology, Duke University School of Medicine, Durham, North Carolina
- Department of Population Health Sciences, Duke University School of Medicine, Durham, North Carolina
| | - Ashraf S Habib
- Department of Anesthesiology, Duke University School of Medicine, Durham, North Carolina
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7
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Tan HS, Habib AS. Peri-operative anaesthetic management of women with obesity. Best Pract Res Clin Obstet Gynaecol 2023; 89:102335. [PMID: 37290264 DOI: 10.1016/j.bpobgyn.2023.102335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 02/27/2023] [Accepted: 03/31/2023] [Indexed: 06/10/2023]
Abstract
Obesity in women is prevalent and growing at an alarming pace worldwide, resulting in significant healthcare and socioeconomic consequences. Obesity is a multisystemic disease that is associated with numerous comorbidities, particularly sleep-disordered breathing, hypertension, coronary artery disease, pulmonary hypertension, thromboembolism, and diabetes mellitus. Additionally, obesity poses several peri-operative challenges including difficulty with airway management and mechanical ventilation, challenges with intravenous access or regional blocks, the need for modified anaesthetic drug dosing, the requirement for correctly sized and rated equipment, and appropriate post-operative monitoring. Therefore, early multidisciplinary planning is crucial to identify and address important peri-operative and clinical issues. Parturients with obesity are especially at high risk due to the additional physiological changes and obstetric comorbidities associated with obesity. Antenatal anaesthetic consultation along with close communication and collaboration within the multidisciplinary team are important to improve maternal and neonatal safety.
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Affiliation(s)
- Hon Sen Tan
- Department of Women's Anaesthesia, KK Women's and Children's Hospital, 100 Bukit Timah Road, 229899, Singapore
| | - Ashraf S Habib
- Department of Anesthesiology, Duke University Medical Center, Box 3094, Durham, NC, 27710, USA. https://twitter.com/ashrafhabib5
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Cai Q, Liu G, Liu Z, Gao M, Huang L, He F, Liu S, Lin Y, Wei H, Dou Z, Liu D, Hu Y, Gong X. Efficacy of quadratus lumborum block on postoperative pain and side effects in patients who underwent urological surgery: A meta-analysis. Pain Pract 2023; 23:70-82. [PMID: 35726437 DOI: 10.1111/papr.13140] [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: 12/05/2021] [Revised: 04/13/2022] [Accepted: 05/31/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND Ultrasound-guided quadratus lumborum block (QLB) is considered a novel nerve block for postoperative pain control. However, its efficacy after urological surgery remains unclear. OBJECTIVES The purpose of the current meta-analysis was to evaluate the effects of the QLB block versus control (placebo or no injection) on postoperative pain and other adverse outcomes after urological surgery, providing extensive evidence of whether quadratus lumborum block is suitable for pain management after urological surgery. STUDY DESIGN Systematic review with meta-analysis of randomized clinical trials. METHODS We searched PubMed, Cochrane Library, Embase, Web of Science, and ClinicalTrials.gov to collect studies investigating the effects of QLB on analgesia after urological surgery. The primary outcomes included visual analog scale (VAS) at rest and during movement, 24-h postoperative morphine consumption, and the incidence of postoperative nausea and vomiting (PONV). RESULTS Overall, 13 randomized controlled trials (RCTs) were reviewed, including 751 patients who underwent urological surgery. The QLB group exhibited a lower VAS score postoperatively at rest or on movement at 0, 6, 12, and 24 h, with less 24-h postoperative morphine consumption and lower incidence of PONV. LIMITATIONS Although the result is stable, heterogeneity exists in the current research. CONCLUSIONS QLB exhibited a favorable effect of postoperative analgesia with reduced postoperative complications at rest or during movement after urological surgery. However, it is still a novel technology at a primary stage, which needs further research to develop.
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Affiliation(s)
- Qiang Cai
- Department of Orthopedics, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China.,Department of Anesthesiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| | | | | | - Meiling Gao
- Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Linsheng Huang
- Department of Hepatobiliary Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Fuhai He
- Guangxi Medical University, Nanning, China
| | | | - Yunhua Lin
- Guangxi Medical University, Nanning, China
| | - Huixia Wei
- Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Zhiqian Dou
- Department of Obstetrics, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Dexi Liu
- Department of Stomatology, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Yang Hu
- Department of Orthopedics, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| | - Xingrui Gong
- Department of Anesthesiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
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Cao R, Li X, Yang J, Deng L, Cui Y. The minimum effective concentration (MEC90) of ropivacaine for ultrasound-guided quadratus lumborum block for analgesia after cesarean delivery: a dose finding study. BMC Anesthesiol 2022; 22:410. [PMID: 36581811 PMCID: PMC9798625 DOI: 10.1186/s12871-022-01954-5] [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: 10/31/2022] [Accepted: 12/21/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Quadratus lumborum block was recently proposed as an alternative technique for post-cesarean delivery analgesia. However, there is not a definite optimum concentration of local anesthetics. A biased coin design up-and-down method was used to explore the minimum effective concentration of ropivacaine in quadratus lumborum block for satisfactory analgesia after cesarean delivery. METHODS Fifty-six patients weighing 60-80 kg after cesarean section and with ages between 18 and 40 years were recruited. For the posterior quadratus lumborum block, a volume of 25 ml of the assigned concentration of ropivacaine was injected bilaterally. The concentration administered to each patient depended on the response to the previous dose. The first patient received 0.25%. If a successful block was observed, the next patient was randomized to receive the same ropivacaine concentration (with a probability of 0.89) or 0.025% less (with a probability of 0.11). After any block failure, the concentration was always increased by 0.025% for the next. The study ended when 45 successful blocks were obtained. We defined effective quadratus lumborum block as a resting visual analog score ≤ 3 and the absence of a need for rescue anesthetics. RESULTS The 90% minimum effective concentration of ropivacaine was 0.335% (95% CI 0.306 to 0.375%), and the 99% minimum effective concentration was 0.371% (95% CI 0.355 to 0.375%). The sufentanil consumption was 11 (11,13) and 24 (22,27) μg at 12 and 24 hours after quadratus lumborum block, respectively. CONCLUSIONS The optimum dosage of ropivacaine is a 25 ml volume of 0.335% for quadratus lumborum block after cesarean delivery. TRIAL REGISTRATION The study was registered in the Chinese Clinical Trial Registry (No. ChiCTR2000040415 ).
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Affiliation(s)
- Rong Cao
- grid.489962.80000 0004 7868 473XDepartment of Anesthesiology, The Affiliated Hospital, School of Medicine, UESTC Chengdu Women’s and Children’s Central Hospital, Chengdu, 610091 China
| | - Xuehan Li
- grid.412901.f0000 0004 1770 1022Department of Anesthesiology, and Laboratory of Anesthesia and Intensive Care Medicine, West China Hospital of Sichuan University, Chengdu, China
| | - Jing Yang
- grid.489962.80000 0004 7868 473XDepartment of Anesthesiology, The Affiliated Hospital, School of Medicine, UESTC Chengdu Women’s and Children’s Central Hospital, Chengdu, 610091 China
| | - Lingmei Deng
- grid.489962.80000 0004 7868 473XDepartment of Anesthesiology, The Affiliated Hospital, School of Medicine, UESTC Chengdu Women’s and Children’s Central Hospital, Chengdu, 610091 China
| | - Yu Cui
- grid.489962.80000 0004 7868 473XDepartment of Anesthesiology, The Affiliated Hospital, School of Medicine, UESTC Chengdu Women’s and Children’s Central Hospital, Chengdu, 610091 China
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10
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Wang J, Chu T, Sun R, Xu A. Analgesic Efficacy of Quadratus Lumborum Block in Patients Undergoing Nephrectomy: A Systematic Review and Meta-Analysis. PAIN MEDICINE 2022; 24:476-487. [PMID: 36321993 DOI: 10.1093/pm/pnac166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/30/2022] [Accepted: 10/24/2022] [Indexed: 11/19/2022]
Abstract
Abstract
Objective
To evaluate the analgesic efficacy of quadratus lumborum block (QLB) in adults undergoing nephrectomy.
Design
Systematic review and meta-analysis.
Patients
Adult patients (≥18 years of age) received nephrectomy under general anesthesia.
Methods
We searched PubMed, Embase, the Cochrane Library, and Web of Science on January 10, 2022, including randomized controlled trials that evaluated the analgesic efficacy of QLB for patients undergoing nephrectomy.
Results
A total of 12 randomized controlled trials (N = 821 patients) were included in the study. Compared with the non-block, single-shot QLB reduced postoperative opioid consumption (mean difference [MD], −8.37 mg intravenous morphine equivalent; 95% confidence interval [CI], −12.19 to −4.54 mg) and pain scores at 2 hours, 6 hours, 12 hours, and 24 hours at rest and during movement after nephrectomy. Single-shot QLB also prolonged the time to first analgesic request (MD, 6.44 hours; 95% CI, 2.23 to 10.65 hours), shortened the length of hospital stay (MD, −0.32 day; 95% CI, −0.55 to −0.09 day), and decreased the incidence of postoperative nausea and vomiting (risk ratio, 0.48; 95% CI, 0.36 to 0.65). Compared with continuous epidural anesthesia, repeated QLB could provide comparable postoperative analgesic benefits.
Conclusions
Single-shot QLB provided a statistically significant but clinically small improvement in postoperative analgesia and recovery for patients undergoing nephrectomy. The QLB would be beneficial as part of multimodal analgesia. Future research might need to determine which approach of QLB is superior for postoperative analgesia after nephrectomy.
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Affiliation(s)
- Jinxu Wang
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Huazhong University of Science and Technology , Wuhan, China
| | - Tiantian Chu
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Huazhong University of Science and Technology , Wuhan, China
| | - Rao Sun
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Huazhong University of Science and Technology , Wuhan, China
| | - Aijun Xu
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Huazhong University of Science and Technology , Wuhan, China
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11
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Bakeer A, Abdelhamid K, Nabil D, Rawi M. Perioperative Analgesic Efficiency of Ultrasound-Guided Quadratus Lumborum Block versus Epidural Analgesia in Bladder Cancer Patients Undergoing Radical Cystectomy. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.10845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background and Aim: Multimodal analgesia is currently used for perioperative pain management after Radical cystectomy (RC). This study aimed to compare quadratus lumborum block (QLB) and thoracic epidural block (TEA) in patients subjected to RC.
Methods: This prospective randomized controlled study included 34 patients with bladder cancer subjected to RC under general anesthesia, divided into two groups. The Quadratus Group (n=17) underwent bilateral ultrasound-guided continuous QLB, and the Epidural Group (n=17) underwent continuous TEA. The primary outcome was pain intensity measured by VAS score, and the secondary outcomes were total morphine consumption during the first 48 hours after surgery, postoperative nausea score, and patient satisfaction.
Results: There were no differences between the two groups in postoperative VAS scores starting immediately after surgery up to 48 hours. Reduction of VAS score after QLB was delayed compared to that after TEA. The two groups had a comparable number of patients requesting rescue analgesia (p = 0.271) and total postoperative morphine consumption (p = 0.976) in the remaining patients. The nausea score was significantly lower in the Quadratus Group than in the Epidural Group (p = 0.020). There was no significant difference between the two groups in the satisfaction score (p=0.612). Few mild complications were detected in the two studied groups.
Conclusion: QLB and TEA are safe and effective in managing postoperative pain after radical cystectomy with similar analgesic profiles. QLB was more effective in reducing postoperative nausea and vomiting.
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12
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Singh N, Anandan V, Ahmad SR. Effect of Dexmedetomidine as an adjuvant in quadratus lumborum block in patient undergoing caesarean section - A randomised controlled study. J Clin Anesth 2022; 81:110892. [PMID: 35671598 DOI: 10.1016/j.jclinane.2022.110892] [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: 02/24/2022] [Revised: 05/26/2022] [Accepted: 05/27/2022] [Indexed: 10/18/2022]
Abstract
STUDY OBJECTIVE This study was conducted to evaluate the effect of Dexmedetomidine as an adjuvant in quadratus lumborum block (QLB) for postoperative pain relief at rest in patients undergoing caesarean section (CS). The primary objective was to compare the time to the first request of rescue analgesia. Secondary objectives were to compare the amount of rescue analgesia, patient satisfaction, Numeric rating scale (NRS), and Ramsay sedation score (RSS) during the first 24 h. DESIGN A randomised, double-blinded study. SETTING The study was conducted at AIIMS Bhubaneswar from December 2019 to February 2021in the Operating Theatre complex (for the immediate postoperative follow-up) and in the Obstetric Ward (for follow-up at the later time points). PATIENTS A total of 70 patients were enrolled with singleton term pregnancies scheduled for CS under spinal anaesthesia after written informed consent. INTERVENTION Bilateral QLB was given in the recovery area. Group A received 30 ml of 0.25% Bupivacaine and group B received 30 ml 0.25% bupivacaine with Dexmedetomidine 1 μg/kg. They received inj. Paracetamol 15 mg/kg intravenously TDS and Inj. Tramadol 1 mg/kg as rescue analgesia (if Numeric rating scale (NRS) Score ≥ 4). We also compared the rescue analgesia in the first 24 h, patient satisfaction scores, Ramsay sedation score (RSS), and NRS scores at 2, 4, 6, 8, 12, 18, and 24 h. MAIN RESULTS The time to request the first rescue analgesia was significantly prolonged in group B [Mean ± SD (95% CI)] 880 ± 351 (720-1040) min. vs group A 439 ± 208 (368-510) min., p < 0.001). There was a significant decrease in the amount of rescue analgesia [(Inj. Tramadol (1 mg/ kg)] used in the group with dexmedetomidine [group B Mean ± SD (95% CI) (57 ± 18 (49-65) mg. vs group A - 81 ± 25 (73-90)] mg., p < 0.001]. A significant difference was seen in patient satisfaction scores and pain scores between the groups up to 18 h. (p < 0.05) but not in RSS. CONCLUSION Dexmedetomidine can be considered an effective adjuvant for QLB in CS in the absence of intrathecal morphine.
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Affiliation(s)
- Neha Singh
- Department of Anesthesiology and Critical Care, All India Institute of Medical Sciences, Bhubaneswar 751019, Odisha, India.
| | - Vishnu Anandan
- Department of Anesthesiology and Critical Care, All India Institute of Medical Sciences, Bhubaneswar 751019, Odisha, India
| | - Suma Rabab Ahmad
- Department of Anesthesiology and Critical Care, All India Institute of Medical Sciences, Bhubaneswar 751019, Odisha, India
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13
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Abate SM, Mergia G, Nega S, Basu B, Tadesse M. Efficacy and safety of wound infiltration modalities for postoperative pain management after cesarean section: a systematic review and network meta-analysis protocol. Syst Rev 2022; 11:194. [PMID: 36071535 PMCID: PMC9450460 DOI: 10.1186/s13643-022-02068-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 08/30/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Postoperative pain after a cesarean section has negative consequences for the mother during the postoperative period. Over the years, various postoperative pain management strategies have been used following cesarean section. Opioid-based analgesics and landmark approaches have negative side effects, while ultrasound-based regional analgesia necessitates resources and experience, but various wound infiltration adjuvants are innovative with few side effects and are simple to use. The efficacy and safety of each adjuvant, however, are unknown and require further investigation. OBJECTIVE This network meta-analysis is intended to provide the most effective wound infiltration drugs for postoperative management after cesarean section. METHOD A comprehensive search will be conducted in PubMed/MEDLINE, Cochrane Library, Science Direct, CINHAL, and LILACS without date and language restrictions. All randomized trials comparing the effectiveness of wound infiltration drugs for postoperative pain management after cesarean section will be included. Data extraction will be conducted independently by two authors. The quality of studies will be evaluated using the Cochrane risk of bias tool, and the overall quality of the evidence will be determined by GRADEpro software. DISCUSSION The rate of postoperative acute and chronic pain is very high which has a huge impact on the mother, family, healthcare practitioners, and healthcare delivery. It is a basic human right to give every patient with postoperative pain treatment that is realistic in terms of resources, technique, cost, and adverse event profile. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42021268774.
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Affiliation(s)
- Semagn Mekonnen Abate
- Department of Anesthesiology, College of Health Sciences and Medicine, Dilla University, Dilla, Ethiopia.
| | - Getachew Mergia
- Departemnt of Obstetrics and Gynecology, College of Health Sciences and Medicine, Dilla University, Dilla, Ethiopia
| | - Solomon Nega
- Departemnt of Internal Medicine, College of Health Sciences and Medicine, Dilla University, Dilla, Ethiopia
| | - Bivash Basu
- Department of Anesthesiology, College of Health Sciences and Medicine, Dilla University, Dilla, Ethiopia
| | - Moges Tadesse
- School of Public Health, College of Health Sciences and Medicine, Dilla University, Dilla, Ethiopia
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Elwakil M, Tharwat J, Abbas D, Elwaseef M, Elgendy S. Comparative Study between Ultrasound-Guided Quadratus Lumborum Block Type 2 Versus Lumbar Epidural Analgesia as a Perioperative Analgesic Technique for Pelvic Cancer Surgeries. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.10416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Background: The effect of the quadratus lumborum block (QLB) is believed to result from a spread of LA from its lumbar deposition cranially into the thoracic paravertebral space.The aim of this study is to compare the analgesic efficacy of an Ultrasound-guided quadrates lumborum type II block versus lumbar epidural analgesia or conventional analgesia after pelvic cancer surgeries regarding intraoperative fentanyl consumption, postoperative pain scores and morphine consumption in the first 24 hours.Methods: This study was conducted on 90 patients of American Society of Anesthesia (ASA) physical status II scheduled for elective pelvic cancer operations. Patients were randomized into three equal groups of 30 patients: Group Q: received bilateral QLB by 20ml of 0.25% bupivacaine in each side, Group E: received continuous lumbar epidural block analgesia ((0.125 % bupivacaine at infusion rate of 6ml/hour for 24 hours). Group C (Control group): were transferred to operation room without further intervention.Results: End tidal sevoflurane was significantly decreased in group Q than group C and in group E than group C at all time measurements. VAS at 0.5, 1, 8. 16 and 24 hours was significantly increased in group C than Group Q and group E. Time to first rescue dose of morphine was significantly increased in Group E than Group Q (P1 <0.001) and was significantly decreased in group C than Group Q (P2 <0.001) and was significantly decreased in group C than Group E (P3 <0.001). Total dose of morphine in 1st 24 hours was significantly increased at group C than group Q and group E (P <0.001) but there was an insignificant difference between Group Q and E.Conclusion: When compared to the control group, QLB and epidural block resulted in decreased VAS, intraoperative sevoflurane and fentanyl use and postoperative morphine consumption with a greater level of patient satisfaction. Epidural block, on the other hand, resulted in less intraoperative sevoflurane usage than QLB.
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15
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Anterior Quadratus Lumborum Block at the Lateral Supra-Arcuate Ligament versus Transmuscular Quadratus Lumborum Block for Analgesia after Elective Cesarean Section: A Randomized Controlled Trial. J Clin Med 2022; 11:jcm11133827. [PMID: 35807110 PMCID: PMC9267333 DOI: 10.3390/jcm11133827] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/19/2022] [Accepted: 06/28/2022] [Indexed: 02/05/2023] Open
Abstract
Several studies have shown the effectiveness of trans-muscular quadratus lumborum block (TQLB) in analgesia after cesarean delivery. However, the influence of anterior QLB at the lateral supra-arcuate ligament (QLB-LSAL) in this surgery is unclear. This study aimed to compare the analgesic efficacy of bilateral TQLBs with bilateral QLBs-LSAL following cesarean delivery. Ninety-four parturients scheduled for cesarean delivery under spinal anesthesia were enrolled and randomly allocated to undergo either bilateral TQLBs or bilateral QLBs-LSAL with 0.375% of ropivacaine (20 mL each side) following cesarean delivery. Intravenous sufentanil was administered for patient-controlled analgesia (PCA). The primary outcome was postoperative sufentanil consumption during the initial 24 h post-surgery. Secondary endpoints included pain scores, time to the first PCA request, postoperative rescue analgesia, satisfaction scores, and nausea/vomiting events. Sufentanil consumption was significantly reduced in the QLB-LSAL group in the first 24 h compared with the TQLB group after surgery (29.4 ± 5.7 μg vs. 39.4 ± 9.6 μg, p < 0.001). In comparison with TQLB, the time to the first PCA request in the QLB-LSAL group was significantly longer (10.9 ± 4.1 h vs. 6.7 ± 1.8 h, p < 0.001). No differences were observed between two groups regarding pain scores, rescue analgesia after surgery, satisfaction scores, or nausea/vomiting incidence. The significant reduction in opioid consumption in the first 24 h and prolongation in time to first opioid demand in parturients receiving QLB-LSAL compared with TQLB suggest that the QLB-LSAL is a superior choice for multimodal analgesia after cesarean delivery.
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16
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Caparlar CO, Altinsoy S, Akelma FK, Ozhan MO, Ergil J. Posterior quadratus lumborum block versus posterior transversus abdominis plane block for unilateral inguinal hernia surgery. Niger J Clin Pract 2022; 25:1457-1465. [DOI: 10.4103/njcp.njcp_1876_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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17
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Hotta K. Development and modification of new fascial plane blocks. J Anesth 2021; 36:171-173. [PMID: 34779922 DOI: 10.1007/s00540-021-03010-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 10/05/2021] [Indexed: 11/27/2022]
Affiliation(s)
- Kunihisa Hotta
- Department of Anesthesiology and Critical Care Medicine, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan.
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18
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Zhang Q, Xu J, Ou M, Lang B. Evaluation of analgesic effects and safety of quadratus lumborum block in patients undergoing laparoscopic surgery: a meta-analysis of randomized controlled trials. Minerva Anestesiol 2021; 88:62-71. [PMID: 34709012 DOI: 10.23736/s0375-9393.21.15807-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
INTRODUCTION Recent years have witnessed the rapid expansion of quadratus lumborum block (QLB) technique in laparoscopic surgeries. However, inconsistent conclusions from latest studies prompted us to conduct present study to evaluate comprehensively the effects of QLB in patients undergoing laparoscopic surgery. EVIDENCE ACQUISITION Databases including PubMed, Embase, and Cochrane Library were searched from inception to March 2021 by us. Randomized controlled trials comparing QLB versus placebo or different block techniques were involved. Coprimary outcomes included number of patients requiring additional analgesia, opioids consumption and incidence of postoperative nausea/vomiting (PONV). EVIDENCE SYNTHESIS Data from 20 studies involving a total of 1,332 patients were acquired. Based on the current evidences, the results indicated that application of QLB was associated with less number of patients requiring additional analgesia (RR = 0.67, with 95% CI [0.49, 0.91]), reduced intraoperative opioid consumption (SMD - 0.97 with 95% CI [-1.48, -0.45]) and postoperative opioid consumption (SMD -19.12 with 95% CI [-34.83, -3.41]), and less incidence of postoperative nausea and vomiting (RR = 0.71, with 95% CI [0.58, 0.87]) compared to placebo. In addition, no significant intergroup (QLB vs different regional block techniques) differences were observed for most outcomes. CONCLUSIONS Current evidences exhibited several superiorities of QLB for patients in laparoscopic surgeries. Differences between QLB and some other block techniques in analgesic effects and PONV controlling effects were not significant. However, it calls for more high-quality evidences with large samples and trials with consistent evaluation scales for pain evaluation to draw more reliable conclusions.
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Affiliation(s)
- Qianqian Zhang
- Department of Anesthesiology, Chengdu Women's and Children's Central Hospital, Chengdu, People's Republic of China
| | - Jing Xu
- Department of Anesthesiology, Chengdu Women's and Children's Central Hospital, Chengdu, People's Republic of China
| | - Mingling Ou
- Department of Anesthesiology, Chengdu Women's and Children's Central Hospital, Chengdu, People's Republic of China
| | - Bingchen Lang
- Department of Pharmacy, West China Second University Hospital, Sichuan University, Chengdu, People's Republic of China -
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Koksal E, Aygun H, Genç C, Kaya C, Dost B. Comparison of the analgesic effects of two quadratus lumborum blocks (QLBs), QLB type II vs QLB type III, in caesarean delivery: A randomised study. Int J Clin Pract 2021; 75:e14513. [PMID: 34117829 DOI: 10.1111/ijcp.14513] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/31/2021] [Accepted: 06/06/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Quadratus lumborum blocks (QLBs) are relatively novel regional anaesthesia techniques, and the efficacy of all three types of QLB for postoperative analgesia in caesarean delivery (CD) has been demonstrated in separate studies. The aim of the present study is to compare the analgesic efficacy of the QLB-II and QLB-III blocks performed at the end of surgery in patients undergoing spinal anaesthesia for CD. METHODS We conducted a comparative, blinded, prospective, randomised and efficiency study. A total of 80 patients scheduled for elective CD under spinal anaesthesia were randomly allocated to receive either bilateral ultrasound-guided QLB-II or QLB-III block in a 1:1 ratio. The primary outcome was opioid consumption administered by a patient-controlled analgesia in the first 24 hours postoperatively. The secondary outcome of the study was pain intensity. Also, the time of first opioid requirement and the presence of nausea and vomiting were recorded. RESULTS Morphine consumption was statistically significantly lower in the QLB-III group when compared with the QLB-II group at the 3rd, 6th, 12th and 24th hours (P < .001, P < .001, P = .004, and P = .015, respectively). The QLB-III group showed significantly lower pain scores at rest at the 1st, 3rd, 6th, 9th and 24th hours after surgery (P < .001, P < .001, P < .001, P = .007 and P < .001, respectively). The QLB-III group also showed significantly lower pain score on movement at all measurement times (P < .001). CONCLUSIONS The analgesic efficacy of QLB-III was superior to QLB-II in patients who had undergone CD under spinal anaesthesia without use of intrathecal opioids and nonsteroidal anti-inflammatory drugs.
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Affiliation(s)
- Ersin Koksal
- Department of Anaesthesiology and Reanimation, Faculty of Medicine, Ondokuz Mayis University, Samsun, Turkey
| | - Hakan Aygun
- Department of Anesthesiology, Cigli Regional Training Hospital, Izmir, Turkey
| | - Caner Genç
- Department of Anaesthesiology and Reanimation, Faculty of Medicine, Ondokuz Mayis University, Samsun, Turkey
| | - Cengiz Kaya
- Department of Anaesthesiology and Reanimation, Faculty of Medicine, Ondokuz Mayis University, Samsun, Turkey
| | - Burhan Dost
- Department of Anaesthesiology and Reanimation, Faculty of Medicine, Ondokuz Mayis University, Samsun, Turkey
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20
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The Current Consideration, Approach, and Management in Postcesarean Delivery Pain Control: A Narrative Review. Anesthesiol Res Pract 2021; 2021:2156918. [PMID: 34589125 PMCID: PMC8476264 DOI: 10.1155/2021/2156918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/04/2021] [Indexed: 12/25/2022] Open
Abstract
Optimal postoperative analgesia has a significant impact on patient recovery and outcomes after cesarean delivery. Multimodal analgesia is the core principle for cesarean delivery and pain management. For a standard analgesic regimen, the use of long-acting neuraxial opioids (e.g., morphine) and adjunct drugs, such as scheduled acetaminophen and nonsteroidal anti-inflammatory drugs, is recommended unless contraindicated. Oral or intravenous opioids should be reserved for breakthrough pain. In addition to the aforementioned use of multimodal analgesia, preoperative evaluation is critical to individualize the analgesic regimen according to the patient requirements. Risk factors for severe postoperative pain or analgesia-related adverse effects will require modifications to the standard analgesic regimen (e.g., the use of ketamine, gabapentinoids, or regional anesthetic techniques). Further investigation is required to determine analgesic drugs or dose alterations based on preoperative predictions for patients at risk of severe pain. Outcomes beyond pain and analgesic use, such as functional recovery, should be determined to evaluate analgesic treatment protocols.
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21
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Mieszkowski M, Janiak M, Borys M, Radkowski P, Mieszkowska M, Zhalniarovich Y, Onichimowski D. Effect of Bilateral Quadratus Lumborum Block Type I on Patient Satisfaction and Incidence of Chronic Postsurgical Pain Following Cesarean Section-A Randomized Controlled Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18179138. [PMID: 34501728 PMCID: PMC8431547 DOI: 10.3390/ijerph18179138] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/09/2021] [Accepted: 08/24/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND Quadratus lumborum block (QLB) provides a reduction in pain scores and opioid consumption after cesarean section (CS). Intrathecal morphine (ITM) is still considered as the gold standard of acute postoperative pain therapy, but it does have some significant side effects. The aim of this clinical study was to evaluate whether performing the quadratus lumborum block type I in patients undergoing CS would be associated with an increased satisfaction of pain therapy and a decreased incidence of chronic postsurgical pain (CPSP). METHODS Sixty patients scheduled for elective CS were enrolled. All patients received spinal anesthesia and were randomly allocated to either the QLB group (received bilateral quadratus lumborum block type I with the use of 24 m mL 0.375% ropivacaine) or the control group (received no block). The level of satisfaction was evaluated using a three-step scale and the answers provided in a questionnaire regarding the patients' satisfaction with the method of postoperative pain treatment in the first 48 h. After a 6-month period, all patients were interviewed to evaluate the incidence and possible severity of CPSP. RESULTS Satisfaction scores were significantly lower in the QLB group than in the control group (p = 0.0000). There were no significant differences between the QLB and control groups regarding the occurrence of chronic postsurgical pain after 6 months following CS (p = 0.102). No statistical differences between the groups were recorded when we compared the results of the questionnaire after a period of 48 h from CS (the number of participants were limited in number). CONCLUSIONS QLB type I is an analgetic option that increased the satisfaction of parturients with pain therapy after CS compared to patients who did not receive the block, and there is a tendency for a lower incidence of CPSP.
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Affiliation(s)
- Marcin Mieszkowski
- Department of Anesthesiology and Intensive Care, School of Medicine, Collegium Medicum, University of Warmia and Mazury, Warszawska 30, 10-082 Olsztyn, Poland; (P.R.); (D.O.)
- Anesthesiology and Intensive Care Clinical Ward, Voivodal Specialistic Hospital, Żołnierska 18, 10-561 Olsztyn, Poland
- Correspondence:
| | - Marek Janiak
- 1st Department of Anesthesiology and Intensive Care, Medical University of Warsaw, Lindleya 4, 02-005 Warsaw, Poland;
| | - Michał Borys
- 2nd Department of Anesthesiology and Intensive Care, Medical University of Lublin, 20-081 Lublin, Poland;
| | - Paweł Radkowski
- Department of Anesthesiology and Intensive Care, School of Medicine, Collegium Medicum, University of Warmia and Mazury, Warszawska 30, 10-082 Olsztyn, Poland; (P.R.); (D.O.)
- Anesthesiology and Intensive Care Clinical Ward, Voivodal Specialistic Hospital, Żołnierska 18, 10-561 Olsztyn, Poland
| | - Marta Mieszkowska
- Department of Surgery and Radiology with Clinic, Faculty of Veterinary Medicine, University of Warmia and Mazury, Oczapowskiego 14, 10-719 Olsztyn, Poland; (M.M.); (Y.Z.)
| | - Yauheni Zhalniarovich
- Department of Surgery and Radiology with Clinic, Faculty of Veterinary Medicine, University of Warmia and Mazury, Oczapowskiego 14, 10-719 Olsztyn, Poland; (M.M.); (Y.Z.)
| | - Dariusz Onichimowski
- Department of Anesthesiology and Intensive Care, School of Medicine, Collegium Medicum, University of Warmia and Mazury, Warszawska 30, 10-082 Olsztyn, Poland; (P.R.); (D.O.)
- Anesthesiology and Intensive Care Clinical Ward, Voivodal Specialistic Hospital, Żołnierska 18, 10-561 Olsztyn, Poland
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22
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Edinoff AN, Girma B, Trettin KA, Horton CC, Kaye AJ, Cornett EM, Imani F, Bastanhagh E, Kaye AM, Kaye AD. Novel Regional Nerve Blocks in Clinical Practice: Evolving Techniques for Pain Management. Anesth Pain Med 2021; 11:e118278. [PMID: 34692446 PMCID: PMC8520672 DOI: 10.5812/aapm.118278] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 08/26/2021] [Indexed: 12/20/2022] Open
Abstract
This review examines the use of novel US-guided nerve blocks in clinical practice. Erector spinae block is a regional anesthesia technique doing by injecting a local anesthetic among the erector spinae muscle group and transverse processes. The phrenic nerve is a branch of the cervical plexus, arising from the anterior rami of cervical nerves C3, C4, and C5. The quadratus lumborum muscle is located along the posterior abdominal wall. It originates from the transverse process of the L5 vertebral body, the iliolumbar ligament, and the iliac crest. US-guided peripheral nerve procedures have a considerable scope of use, including treating headaches and hiccups to abdominal surgical pain, cesarean sections, musculoskeletal pathologies. These nerve blocks have been an effective addition to clinical anesthesia practice. The use of peripheral nerve blocks has improved postoperative pain, lessened the use of opioids and their potential side effects, and decreased the incidence of sleep disturbance in patients. More research should be done to further delineate the potential benefits of these blocks.
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Affiliation(s)
- Amber N. Edinoff
- Louisiana State University Health Science Center Shreveport, Department of Psychiatry and Behavioral Medicine, Shreveport, LA, USA
| | - Brook Girma
- Louisiana State University Shreveport, Department of Anesthesiology, Shreveport, LA, USA
| | - Katherine A. Trettin
- Louisiana State University Health Science Center Shreveport, Department of Psychiatry and Behavioral Medicine, Shreveport, LA, USA
| | - Cassidy C. Horton
- Louisiana State University Health Science Center Shreveport, Department of Psychiatry and Behavioral Medicine, Shreveport, LA, USA
| | - Aaron J. Kaye
- Medical University of South Carolina, Department of Anesthesiology and Perioperative Medicine, Charleston, SC, USA
| | - Elyse M. Cornett
- Louisiana State University Shreveport, Department of Anesthesiology, Shreveport, LA, USA
| | - Farnad Imani
- Pain Research Center, Department of Anesthesiology and Pain Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ehsan Bastanhagh
- Department of Anesthesiology and Critical Care, Tehran University of Medical Sciences, Tehran, Iran
| | - Adam M. Kaye
- Thomas J. Long School of Pharmacy and Health Sciences, University of the Pacific, Department of Pharmacy Practice, Stockton, CA, USA
| | - Alan D. Kaye
- Louisiana State University Shreveport, Department of Anesthesiology, Shreveport, LA, USA
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Stopar-Pintaric T, Blajic I, Visic U, Znider M, Plesnicar A, Vlassakov K, Lucovnik M. Posteromedial quadratus lumborum block versus wound infiltration after caesarean section: A randomised, double-blind, controlled study. Eur J Anaesthesiol 2021; 38:S138-S144. [PMID: 33988528 DOI: 10.1097/eja.0000000000001531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Reducing pain and minimising the use of opioids after caesarean section are crucial to enhancing maternal recovery and promoting mother-newborn interaction. Various techniques have been implemented to improve analgesia. We compared the analgesic efficacy of posteromedial quadratus lumborum block with that of wound infiltration following elective caesarean section. OBJECTIVE We hypothesised that within a multimodal analgesia approach, posteromedial quadratus lumborum block would, due to its potential to relieve visceral pain, result in a 15% reduction in 24-h postoperative opioid consumption compared with wound infiltration. DESIGN A double-blind, randomised, placebo-controlled clinical study. SETTING A single-centre study between August 2019 and May 2020. PATIENTS One hundred and sixteen women were randomly allocated into two groups. In the quadratus lumborum group, 20 ml 0.9% saline was injected into the surgical wound followed by bilateral posteromedial quadratus lumborum block using 20 ml 0.25% levobupivacaine per side. In the wound infiltration group, 20 ml of 0.25% levobupivacaine was injected into the surgical wound followed by a bilateral posteromedial quadratus lumborum injection with 20 ml 0.9% saline per side. MAIN OUTCOME MEASURES The primary outcome was opioid (piritramide) consumption at 24 h. Secondary outcomes were piritramide consumption at 48 h, time-to-first analgesic request, pain scores at rest and with movement, surgery-to-first-ambulation time, surgery-to-breastfeeding time, sedation, pruritus and complications. RESULTS Piritramide consumption in 24 h was significantly lower with posteromedial quadratus lumborum block (1.5 ± 1.8 mg) than with wound infiltration (2.2 ± 1.7 mg) (P = 0.04), mean difference of -0.7 mg, (95% CI -1.3 to -0.03). In those who required piritramide, time-to-first analgesic request was significantly longer with posteromedial quadratus lumborum block 11 [7 to 14] h, than with wound infiltration 7 [5 to 11] h (P = 0.02). Pain scores were low, with no differences recorded at rest and with movement. There were no differences in time-to-ambulation and time-to-breastfeed between the groups. CONCLUSION As a component of multimodal post-caesarean section analgesia, posteromedial quadratus lumborum block was associated with lower 24-h opioid consumption compared with wound infiltration. TRIAL REGISTRATION ClinicalTrials.gov identifier: NCT04000308.
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Affiliation(s)
- Tatjana Stopar-Pintaric
- From the Department of Anaesthesiology and Intensive Therapy, University Medical Centre Ljubljana (TSP, IB), the Institute of Anatomy, Faculty of Medicine, University of Ljubljana (TSP), the Department of Perinatology, Division of Obstetrics and Gynaecology, University Medical Centre Ljubljana (UV, ML), the Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia (MZ, AP, ML), the Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital/Harvard Medical School, Boston, Massachusetts, USA (KV)
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Kim DH, Kim SJ, Liu J, Beathe J, Memtsoudis SG. Fascial plane blocks: a narrative review of the literature. Reg Anesth Pain Med 2021; 46:600-617. [PMID: 34145072 DOI: 10.1136/rapm-2020-101909] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 01/25/2021] [Accepted: 01/26/2021] [Indexed: 12/16/2022]
Abstract
Fascial plane blocks (FPBs) are increasingly numerous and are often touted as effective solutions to many perioperative challenges facing anesthesiologists. As 'new' FPBs are being described, questions regarding their effectiveness remain unanswered as appropriate studies are lacking and publications are often limited to case discussions or technical reports. It is often unclear if newly named FPBs truly represent a novel intervention with new indications, or if these new publications describe mere ultrasound facilitated modifications of existing techniques. Here, we present broad concepts and potential mechanisms of FPB. In addition, we discuss major FPBs of (1) the extremities (2) the posterior torso and (3) the anterior torso. The characteristics, indications and a brief summary of the literature on these blocks is included. Finally, we provide an estimate of the overall level of evidence currently supporting individual approaches as FPBs continue to rapidly evolve.
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Affiliation(s)
- David H Kim
- Anesthesiology, Critical Care & Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Sang Jo Kim
- Anesthesiology, Critical Care & Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Jiabin Liu
- Anesthesiology, Critical Care & Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Jonathan Beathe
- Anesthesiology, Critical Care & Pain Management, Hospital for Special Surgery, New York, New York, USA.,Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Stavros G Memtsoudis
- Anesthesiology, Critical Care & Pain Management, Hospital for Special Surgery, New York, New York, USA .,Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
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Wang J, Zhao G, Song G, Liu J. The Efficacy and Safety of Local Anesthetic Techniques for Postoperative Analgesia After Cesarean Section: A Bayesian Network Meta-Analysis of Randomized Controlled Trials. J Pain Res 2021; 14:1559-1572. [PMID: 34103981 PMCID: PMC8180269 DOI: 10.2147/jpr.s313972] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 05/21/2021] [Indexed: 12/12/2022] Open
Abstract
Objective Cesarean section (CS) is one of the most frequently performed major surgical interventions. Local anesthetic techniques, a universal component of perioperative multimodal analgesia, are reportedly effective in reducing pain scores and opioid requirements. However, the optimal local anesthetic technique for postoperative CS pain remains unclear. Methods Six databases were searched, and a Bayesian network meta-analysis was performed. The outcomes included cumulative morphine consumption and pain scores at four time points, time to first analgesic request, postoperative nausea and vomiting, pruritus, and sedation. Results Sixty-eight studies with 5039 pregnant women were included. Six local anesthetic techniques were involved, including transversus abdominis plane block (TAPB), ilioinguinal and iliohypogastric nerve block, quadratus lumborum blocks, transversalis fascia plane block, erector spinae block, and wound infiltration. Compared to inactive controls, TAPB reduced cumulative morphine consumption at 6, 12, 24, and 48 h, pain scores at 6, 12, and 24 h (with the exception of 24 h at rest), the risk of postoperative nausea and vomiting, and sedation. Compared with inactive controls, ilioinguinal and iliohypogastric nerve block reduced cumulative morphine consumption at 6 and 24 h and pain scores at 6, 12, and 24 h during movement. Compared with inactive controls, quadratus lumborum blocks reduced cumulative morphine consumption at 24 and 48 h and pain scores at 6 and 12 h and lengthened the time to first analgesic request. Compared with inactive controls, wound infiltration reduced cumulative morphine consumption at 12 and 24 h, pain scores at 12 and 24 h during movement, and risk of sedation. Compared with inactive controls, erector spinae block reduced pain scores at 6 and 12 h. Transversalis fascia plane block was found to have similar outcomes to inactive controls. Conclusion TAPB is the most comprehensive local anesthetic technique for postoperative CS analgesia in the absence of intrathecal morphine.
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Affiliation(s)
- Jian Wang
- Department of Anesthesiology, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Ge Zhao
- Department of Obstetrics, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Guang Song
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Jing Liu
- Department of Obstetrics, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
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Tan HS, Habib AS. Obesity in women: anaesthetic implications for peri-operative and peripartum management. Anaesthesia 2021; 76 Suppl 4:108-117. [PMID: 33682095 DOI: 10.1111/anae.15403] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/31/2020] [Indexed: 12/13/2022]
Abstract
The prevalence, healthcare and socio-economic impact of obesity (defined as having a body mass index of ≥ 30 kg.m-2 ) are disproportionately higher in women than men. A combination of biological and social factors, including the adaptation of energy homeostasis to the increased demands of pregnancy and lactation and poor access to healthy foods or exercise facilities, contribute to the increasing prevalence of obesity in women. Obesity-related physiological changes stem from mass loading and increased metabolism of adipose tissue, as well as secretion of bioactive substances from adipocytes leading to chronic low-grade inflammation. As a result, obesity is associated with increased risks of: infertility; malignancy; sleep-disordered breathing; cardiovascular disease; diabetes; and thromboembolism. Hence, obese women are at markedly increased risk of peri-operative morbidity and mortality and require comprehensive evaluation and targeted comorbidity optimisation by a multidisciplinary team. In addition to routine obstetric challenges, pregnancy in women with obesity further exacerbates the above risks, making multidisciplinary management starting at pre-conception even more important. Weight loss, lifestyle management and optimisation of comorbidity are the cornerstone of reducing obesity-related risks. The anaesthetist plays a vital role within the multidisciplinary team by emphasising weight loss as part of pre-operative comorbidity optimisation, formulation of individualised peri-operative management plans, supervising postoperative care in the high dependency or intensive care settings and providing safe labour analgesia and careful peripartum management for obese parturients.
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Affiliation(s)
- H S Tan
- Department of Women's Anaesthesia, KK Women's and Children's Hospital, Singapore
| | - A S Habib
- Division of Women's Anesthesia, Department of Anesthesiology, Duke University School of Medicine, Durham, NC, USA
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Wang D, He Y, Chen X, Lin Y, Liu Y, Yu Z. Ultrasound guided lateral quadratus lumborum block enhanced recovery in patients undergoing laparoscopic colorectal surgery. Adv Med Sci 2021; 66:41-45. [PMID: 33359908 DOI: 10.1016/j.advms.2020.12.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 09/04/2020] [Accepted: 12/10/2020] [Indexed: 01/07/2023]
Abstract
PURPOSE This study aimed to evaluate the effects of lateral quadratus lumborum block (QLB) on postoperative pain and recovery in patients undergoing laparoscopic colorectal surgery. MATERIALS AND METHODS Patients between 18 and 70 years old, diagnosed with colon or rectal cancer, with American Society of Anesthesiologists (ASA) physical status I or II, and scheduled for laparoscopic colorectal surgery were recruited. Patients were excluded if they were allergic to local anesthetics and unable to complete the procedure of puncture or follow-up evaluation. All included patients were randomly allocated to either QLB or Sham group. The primary outcome was perioperative cumulative sufentanil consumption. RESULTS There were no significant differences between the groups in anesthetic time, operation time, dosage of propofol, and remifentanil (P > 0.05). Patients in the QLB group had significantly less sufentanil consumption both intraoperatively and postoperatively, compared with the Sham group (P < 0.05). Postoperative VAS pain scores on coughing in the QLB group at 2 h, 6 h, 12 h, 24 h time points and VAS pain score at rest 2 h, 6 h after surgery were significantly lower than in the Sham group (P < 0.05). Compared with the Sham group, time to first ambulation and anal flatus after surgery in the QLB group were significantly shorter (P < 0.05). Significant differences of postoperative rescue analgesic usage and QoR-15 score at 48 h were found between the two groups (P < 0.05). CONCLUSIONS Ultrasound-guided lateral QLB significantly reduced perioperative opioid consumption, alleviated postoperative pain, shortened the time to first ambulation and anal flatus, and enhanced postoperative recovery of the patients undergoing laparoscopic colorectal surgery.
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Affiliation(s)
- Danfeng Wang
- Department of Anesthesiology, Fujian Provincial Medical College, Fujian Medical University, Fuzhou, China; Division of Anesthesia, Fujian Provincial Hospital, Fuzhou, China
| | - Ying He
- Department of Anesthesiology, Fujian Provincial Medical College, Fujian Medical University, Fuzhou, China
| | - Xiaohui Chen
- Department of Anesthesiology, Fujian Provincial Medical College, Fujian Medical University, Fuzhou, China; Division of Anesthesia, Fujian Provincial Hospital, Fuzhou, China
| | - Yanling Lin
- Division of Anesthesia, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Yanjie Liu
- Division of Anesthesia, Fujian Provincial Hospital, Fuzhou, China
| | - Zenggui Yu
- Department of Anesthesiology, Fujian Provincial Medical College, Fujian Medical University, Fuzhou, China; Division of Anesthesia, Fujian Provincial Hospital, Fuzhou, China.
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Aaronson J, White R. The Role of Truncal Blocks in Obstetric Anesthesia. CURRENT ANESTHESIOLOGY REPORTS 2021. [DOI: 10.1007/s40140-021-00436-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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