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Şalvız EA, Bingül ES, Güzel M, Savran Karadeniz M, Turhan Ö, Emre Demirel E, Saka E. Comparison of Performance Characteristics and Efficacy of Bilateral Thoracic Paravertebral Blocks in Obese and Non-Obese Patients Undergoing Reduction Mammaplasty Surgery: A Historical Cohort Study. Aesthetic Plast Surg 2023; 47:1343-1352. [PMID: 36763114 DOI: 10.1007/s00266-023-03270-w] [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: 11/14/2022] [Accepted: 01/19/2023] [Indexed: 02/11/2023]
Abstract
BACKGROUND Although ultrasound (US)-guided regional anesthesia techniques are advantageous in the management of obese patients; the procedures can still be associated with technical difficulties and greater failure rates. The aim of this study is to compare the performance properties and analgesic efficacy of US-guided bilateral thoracic paravertebral blocks (TPVBs) in obese and non-obese patients. METHODS Data of 82 patients, who underwent bilateral reduction mammaplasty under general anesthesia with adjunctive TPVB analgesia between December 2016 and February 2020, were reviewed. Patients were allocated into two groups with respect to their BMI scores (Group NO: BMI < 30 and Group O: BMI ≥ 30). Demographics, ideal US visualization time, total bilateral TPVB procedure time, needle tip visualization and performance difficulties, number of needle maneuvers, surgical, anesthetic and analgesic follow-up parameters, incidence of postoperative nausea and vomiting (PONV), sleep duration, length of postanesthesia care unit (PACU) and hospital stay, and patient/surgeon satisfaction scores were investigated. RESULTS Seventy-nine patients' data were complete. Ideal US visualization and total TPVB performance times were shorter, number of needle maneuvers were fewer and length of PACU stay was shorter in Group NO (p < 0.05). Postoperative pain scores were generally similar within first 24 h (p > 0.05). Time to postoperative pain, total analgesic requirements, incidence of PONV, sleep duration, length of hospital stay were comparable (p > 0.05). Satisfaction was slightly higher in Group NO (p < 0.05). CONCLUSIONS US-guided TPVB performances in obese patients might be more challenging and take longer time. However, it is still successful providing good acute pain control in patients undergoing reduction mammaplasty surgeries. LEVEL OF EVIDENCE III This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 . TRIAL REGISTRATION NCT04596787.
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Affiliation(s)
- Emine A Şalvız
- Department of Anesthesiology and Reanimation, Istanbul Faculty of Medicine, Istanbul University, Millet caddesi Cerrahi monoblok, Giris kati, 34093, Fatih, Istanbul, Turkey
- Department of Anesthesiology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Emre S Bingül
- Department of Anesthesiology and Reanimation, Istanbul Faculty of Medicine, Istanbul University, Millet caddesi Cerrahi monoblok, Giris kati, 34093, Fatih, Istanbul, Turkey
| | - Mehmet Güzel
- Department of Anesthesiology and Reanimation, Istanbul Faculty of Medicine, Istanbul University, Millet caddesi Cerrahi monoblok, Giris kati, 34093, Fatih, Istanbul, Turkey
| | - Meltem Savran Karadeniz
- Department of Anesthesiology and Reanimation, Istanbul Faculty of Medicine, Istanbul University, Millet caddesi Cerrahi monoblok, Giris kati, 34093, Fatih, Istanbul, Turkey.
| | - Özlem Turhan
- Department of Anesthesiology and Reanimation, Istanbul Faculty of Medicine, Istanbul University, Millet caddesi Cerrahi monoblok, Giris kati, 34093, Fatih, Istanbul, Turkey
| | - Ebru Emre Demirel
- Department of Anesthesiology and Reanimation, Istanbul Faculty of Medicine, Istanbul University, Millet caddesi Cerrahi monoblok, Giris kati, 34093, Fatih, Istanbul, Turkey
| | - Esra Saka
- Department of Anesthesiology and Reanimation, Istanbul Faculty of Medicine, Istanbul University, Millet caddesi Cerrahi monoblok, Giris kati, 34093, Fatih, Istanbul, Turkey
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Boselli E, Hopkins P, Lamperti M, Estèbe JP, Fuzier R, Biasucci DG, Disma N, Pittiruti M, Traškaitė V, Macas A, Breschan C, Vailati D, Subert M. European Society of Anaesthesiology and Intensive Care Guidelines on peri-operative use of ultrasound for regional anaesthesia (PERSEUS regional anesthesia): Peripheral nerves blocks and neuraxial anaesthesia. Eur J Anaesthesiol 2021; 38:219-250. [PMID: 33186303 DOI: 10.1097/eja.0000000000001383] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nowadays, ultrasound-guidance is commonly used in regional anaesthesia (USGRA) and to locate the spinal anatomy in neuraxial analgesia. The aim of this second guideline on the PERi-operative uSE of UltraSound (PERSEUS-RA) is to provide evidence as to which areas of regional anaesthesia the use of ultrasound guidance should be considered a gold standard or beneficial to the patient. The PERSEUS Taskforce members were asked to define relevant outcomes and rank the relative importance of outcomes following the GRADE process. Whenever the literature was not able to provide enough evidence, we decided to use the RAND method with a modified Delphi process. Whenever compared with alternative techniques, the use of USGRA is considered well tolerated and effective for some nerve blocks but there are certain areas, such as truncal blocks, where a lack of robust data precludes useful comparison. The new frontiers for further research are represented by the application of USG during epidural analgesia or spinal anaesthesia as, in these cases, the evidence for the value of the use of ultrasound is limited to the preprocedure identification of the anatomy, providing the operator with a better idea of the depth and angle of the epidural or spinal space. USGRA can be considered an essential part of the curriculum of the anaesthesiologist with a defined training and certification path. Our recommendations will require considerable changes to some training programmes, and it will be necessary for these to be phased in before compliance becomes mandatory.
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Affiliation(s)
- Emmanuel Boselli
- From the Department of Anaesthesiology, Pierre Oudot Hospital, Bourgoin-Jallieu, University Claude Bernard Lyon I, University of Lyon, France (EB), Leeds Institute of Medical Research at St James's School of Medicine, University of Leeds, Leeds, UK (PH), Anesthesiology Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates (ML), Department of Anaesthesiology, Intensive Care and Pain Medicine, University hospital of Rennes, Rennes, France (JPE), Department of Anaesthesiology, Institut Universitaire du Cancer Toulouse Oncopole, Toulouse, France (RF), Intensive Care Unit, Department of Emergency, Intensive Care Medicine and Anesthesiology, Fondazione Policlinico Universitario 'A. Gemelli' IRCCS, Rome, Italy (DGB), Department of Anaesthesiology, IRCCS Istituto Giannina Gaslini, Genova, Italy (ND), Department of Surgery, Fondazione Policlinico Universitario 'A. Gemelli' IRCCS, Rome, Italy (MP), Department of Anesthesiology, Lithuanian University of Health Sciences, Kaunas, Lithuania (VT, AM), Department of Anaesthesia, Klinikum Klagenfurt, Austria (CB), Anaesthesia and Intensive Care Unit, Melegnano Hospital (DV) and Department of Surgical and Intensive Care Unit, Sesto San Giovanni Civic Hospital, Milan, Italy (MS)
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Lauf JA, Huggins P, Long J, Al-Issa M, Byrne B, Large BP, Whitehead B, Cheney NA, Law TD. Regional Nerve Block Complication Analysis Following Peripheral Nerve Block During Foot and Ankle Surgical Procedures. Cureus 2020; 12:e9434. [PMID: 32864258 PMCID: PMC7450881 DOI: 10.7759/cureus.9434] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background Foot and ankle surgeries are frequently accompanied by a peripheral nerve block in order to reduce postoperative pain. Higher than expected complication rates with peripheral nerve blocks have led to increased concern among surgeons and patients. To our knowledge, no study conducted by the treating surgeon has identified risk factors that may predispose a patient to complications. Our goal was to attempt to identify those risk factors. Methods We reviewed patient charts of those who underwent an orthopedic foot and ankle procedure between 2013 and 2018, as performed by the senior author. This yielded 992 procedures performed across four surgical locations. Of these procedures, 137 procedures were removed because no block was used. The remaining cases were analyzed for nerve complications, defined as sensory or motor deficits along the distribution of a nerve. The patients were divided into those with and without complications and were evaluated for differences. Statistical analysis was performed using the SAS® software (SAS Institute Inc., Cary, North Carolina, USA). Results The overall short-term complication rate was 10.1% and the long-term complication rate was 4.3%, with a total of 855 blocks given. Electromyographies (EMGs) were performed on 24.4% of the patients with a complication. Of the EMGs, 95.2% confirmed nerve complications in the distribution of the blocked nerve. The significant factors associated with complications were age, BMI, location, and smoking status. A regression analysis was performed to determine the odds ratio for individual factors. Those with significantly higher odds ratio were between 40 and 65 years of age, had normal or underweight BMI, underwent surgery at an outpatient surgery center, and were current smokers. Conclusions Our study suggests that there are significant epidemiological factors in predicting postoperative complications related to a peripheral nerve block. The study also shows a similar short-term complication rate but a higher long-term complication rate than other studies. This data are important because it allows for an informed decision to be made between a surgeon, anesthesiologist, and the patient regarding the safety and necessity of delivering a preoperative peripheral nerve block based on patient risk factors.
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Affiliation(s)
- Jason A Lauf
- Orthopedic Surgery, Ohio University Heritage College of Osteopathic Medicine, Dublin, USA
| | - Pearson Huggins
- Orthopedic Surgery, Ohio University Heritage College of Osteopathic Medicine, Dublin, USA
| | - Joseph Long
- Medicine, Ohio State University College of Medicine, Columbus, USA
| | - Mohammed Al-Issa
- Orthopedic Surgery, Ohio University Heritage College of Osteopathic Medicine, Dublin, USA
| | - Brian Byrne
- Emergency Medicine, Mercy St. Elizabeth Boardman Hospital, Youngstown, USA
| | - Bryan P Large
- Anesthesiology, OhioHealth Doctors Hospital, Columbus, USA
| | - Brent Whitehead
- Orthopedic Surgery, Ohio University Heritage College of Osteopathic Medicine, Dublin, USA
| | | | - Timothy D Law
- Family Medicine, Ohio University Heritage College of Osteopathic Medicine, Athens, USA
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Warrit K, Griffenhagen G, Goh C, Boscan P. Comparison of ultrasound-guided lumbar plexus and sciatic nerve blocks with ropivacaine and sham blocks with saline on perianesthetic analgesia and recovery in dogs undergoing tibial plateau leveling osteotomy surgery. Vet Anaesth Analg 2019; 46:673-681. [PMID: 31371195 DOI: 10.1016/j.vaa.2019.05.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 05/15/2019] [Accepted: 05/23/2019] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To assess the effects of ultrasound-guided lumbar plexus and sciatic nerve blocks on perianesthetic analgesia and recovery quality in dogs undergoing tibial plateau leveling osteotomy (TPLO). ANIMALS A group of twenty 20 dogs. STUDY DESIGN Prospective, randomized, blinded, clinical study. METHODS Dogs were administered lumbar plexus and sciatic nerve blocks with ropivacaine (1.5 mg kg-1; group RA) or sham blocks with saline (group CON). Dogs were administered hydromorphone (0.2 mg kg-1) and atropine (0.02 mg kg-1) subcutaneously before anesthesia was induced with intravenous propofol and maintained with isoflurane. Variables included duration to perform nerve blocks, intraoperative rescue analgesia, recovery score, postoperative pain scores (modified University of Melbourne, Colorado State University and visual analog pain scales), postoperative rescue analgesia-sedation and complications observed. Two-tailed Student t test, Mann-Whitney test, repeated measures analysis of variance, Friedman test and Fisher exact test were used for comparison. Significance was p < 0.05. RESULTS Time to perform nerve blocks was [median (range)] 4.3 (2.6-6.1) minutes after aseptic skin preparation. Total fentanyl requirements were 14.2 ± 9 μg kg-1 and 25.4 ± 10 μg kg-1 (p = 0.02) and incidence of hypotension (mean arterial pressure < 60 mmHg) was 40% and 80% (p = 0.16) for groups RA and CON, respectively. Six of eight group CON dogs required more intensive treatment for hypotension than group RA dogs. Recovery scores were 1 (1-4) and 2.5 (1-4) for groups RA and CON, respectively (p = 0.04). RA dogs were less likely to require fentanyl rescue analgesia during the postoperative period (p = 0.04). CONCLUSION AND CLINICAL RELEVANCE As part of a multimodal analgesia regimen, ultrasound-guided lumbar plexus and sciatic nerve blocks provided greater analgesia and improved recovery quality in dogs during TPLO surgery.
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Affiliation(s)
- Kanawee Warrit
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Science, Colorado State University, Fort Collins, CO, USA
| | - Gregg Griffenhagen
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Science, Colorado State University, Fort Collins, CO, USA
| | - Clara Goh
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Science, Colorado State University, Fort Collins, CO, USA
| | - Pedro Boscan
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Science, Colorado State University, Fort Collins, CO, USA.
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Tran DQ, Salinas FV, Benzon HT, Neal JM. Lower extremity regional anesthesia: essentials of our current understanding. Reg Anesth Pain Med 2019; 44:rapm-2018-000019. [PMID: 30635506 DOI: 10.1136/rapm-2018-000019] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 05/14/2018] [Accepted: 05/23/2018] [Indexed: 12/16/2022]
Abstract
The advent of ultrasound guidance has led to a renewed interest in regional anesthesia of the lower limb. In keeping with the American Society of Regional Anesthesia and Pain Medicine's ongoing commitment to provide intensive evidence-based education, this article presents a complete update of the 2005 comprehensive review on lower extremity peripheral nerve blocks. The current review article strives to (1) summarize the pertinent anatomy of the lumbar and sacral plexuses, (2) discuss the optimal approaches and techniques for lower limb regional anesthesia, (3) present evidence to guide the selection of pharmacological agents and adjuvants, (4) describe potential complications associated with lower extremity nerve blocks, and (5) identify informational gaps pertaining to outcomes, which warrant further investigation.
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Affiliation(s)
- De Q Tran
- Department of Anesthesiology, McGill University, Montreal, Quebec, Canada
| | - Francis V Salinas
- Department of Anesthesiology, US Anesthesia Partners-Washington, Swedish Medical Center, Seattle, Washington, USA
| | - Honorio T Benzon
- Department of Anesthesiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Joseph M Neal
- Department of Anesthesiology, Virginia Mason Medical Center, Seattle, Washington, USA
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Willsey M, Wilson TJ, Henning PT, Yang LJS. Intraoperative Ultrasound for Peripheral Nerve Applications. Neurosurg Clin N Am 2017; 28:623-632. [PMID: 28917290 DOI: 10.1016/j.nec.2017.05.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Offering real-time, high-resolution images via intraoperative ultrasound is advantageous for a variety of peripheral nerve applications. To highlight the advantages of ultrasound, its extraoperative uses are reviewed. The current intraoperative uses, including nerve localization, real-time evaluation of peripheral nerve tumors, and implantation of leads for peripheral nerve stimulation, are reviewed. Although intraoperative peripheral nerve localization has been performed previously using guide wires and surgical dyes, the authors' approach using ultrasound-guided instrument clamps helps guide surgical dissection to the target nerve, which could lead to more timely operations and shorter incisions.
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Affiliation(s)
- Matthew Willsey
- Department of Neurosurgery, University of Michigan, 1500 East Medical Center Drive #2, Ann Arbor, MI 48109, USA
| | - Thomas J Wilson
- Department of Neurosurgery, Mayo Clinic, 200 First Street Southwest, Rochester, MN 55905, USA
| | - Phillip Troy Henning
- Department of Physical Medicine and Rehabilitation, University of Michigan, 325 East Eisenhower Parkway, Suite 100, Ann Arbor, MI 48108, USA.
| | - Lynda J-S Yang
- Department of Neurosurgery, University of Michigan, 1500 East Medical Center Drive #2, Ann Arbor, MI 48109, USA
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Li GC, Chen YS, Wei W, Zhao J, Yang B, Zhao WX. Ultrasound-guided femoral and sciatic nerve block in supine position for surgical management of diabetic foot in critical patients: pilot study of 25 cases. Int J Diabetes Dev Ctries 2017. [DOI: 10.1007/s13410-016-0486-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Possible utility of contrast-enhanced ultrasonography for detecting spread of local anesthetic in nerve block. J Anesth 2017; 31:365-373. [DOI: 10.1007/s00540-017-2347-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 03/26/2017] [Indexed: 10/19/2022]
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Osorio JA, Breshears JD, Arnaout O, Simon NG, Hastings-Robinson AM, Aleshi P, Kliot M. Ultrasound-guided percutaneous injection of methylene blue to identify nerve pathology and guide surgery. Neurosurg Focus 2016; 39:E2. [PMID: 26323820 DOI: 10.3171/2015.6.focus15220] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECT The objective of this study was to provide a technique that could be used in the preoperative period to facilitate the surgical exploration of peripheral nerve pathology. METHODS The authors describe a technique in which 1) ultrasonography is used in the immediate preoperative period to identify target peripheral nerves, 2) an ultrasound-guided needle electrode is used to stimulate peripheral nerves to confirm their position, and then 3) a methylene blue (MB) injection is performed to mark the peripheral nerve pathology to facilitate surgical exploration. RESULTS A cohort of 13 patients with varying indications for peripheral nerve surgery is presented in which ultrasound guidance, stimulation, and MB were used to localize and create a road map for surgeries. CONCLUSIONS Preoperative ultrasound-guided MB administration is a promising technique that peripheral nerve surgeons could use to plan and execute surgery.
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Affiliation(s)
- Joseph A Osorio
- Department of Neurological Surgery, University of California, San Francisco, California
| | - Jonathan D Breshears
- Department of Neurological Surgery, University of California, San Francisco, California
| | - Omar Arnaout
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Neil G Simon
- Prince of Wales Clinical School, University of New South Wales, Randwick, and Department of Neurology, St. Vincent's Hospital, Darlinghurst, New South Wales, Australia; and
| | - Ashley M Hastings-Robinson
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Pedram Aleshi
- Department of Anesthesia & Perioperative Care, University of California, San Francisco, California
| | - Michel Kliot
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois
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Sarı S, Aydın ON, Turan Y, Şen S, Özlülerden P, Ömürlü İK, Gulastı F. Which imaging method should be used for genicular nerve radio frequency thermocoagulation in chronic knee osteoarthritis? J Clin Monit Comput 2016; 31:797-803. [DOI: 10.1007/s10877-016-9886-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Accepted: 04/26/2016] [Indexed: 10/21/2022]
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Evidence Basis for Ultrasound Guidance for Lower-Extremity Peripheral Nerve Block. Reg Anesth Pain Med 2016; 41:261-74. [DOI: 10.1097/aap.0000000000000336] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lewis SR, Price A, Walker KJ, McGrattan K, Smith AF, Cochrane Anaesthesia Group. Ultrasound guidance for upper and lower limb blocks. Cochrane Database Syst Rev 2015; 2015:CD006459. [PMID: 26361135 PMCID: PMC6465072 DOI: 10.1002/14651858.cd006459.pub3] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Peripheral nerve blocks can be performed using ultrasound guidance. It is not yet clear whether this method of nerve location has benefits over other existing methods. This review was originally published in 2009 and was updated in 2014. OBJECTIVES The objective of this review was to assess whether the use of ultrasound to guide peripheral nerve blockade has any advantages over other methods of peripheral nerve location. Specifically, we have asked whether the use of ultrasound guidance:1. improves success rates and effectiveness of regional anaesthetic blocks, by increasing the number of blocks that are assessed as adequate2. reduces the complications, such as cardiorespiratory arrest, pneumothorax or vascular puncture, associated with the performance of regional anaesthetic blocks SEARCH METHODS In the 2014 update we searched the Cochrane Central Register of Controlled Trials (CENTRAL; 2014, Issue 8); MEDLINE (July 2008 to August 2014); EMBASE (July 2008 to August 2014); ISI Web of Science (2008 to April 2013); CINAHL (July 2014); and LILACS (July 2008 to August 2014). We completed forward and backward citation and clinical trials register searches.The original search was to July 2008. We reran the search in May 2015. We have added 11 potential new studies of interest to the list of 'Studies awaiting classification' and will incorporate them into the formal review findings during future review updates. SELECTION CRITERIA We included randomized controlled trials (RCTs) comparing ultrasound-guided peripheral nerve block of the upper and lower limbs, alone or combined, with at least one other method of nerve location. In the 2014 update, we excluded studies that had given general anaesthetic, spinal, epidural or other nerve blocks to all participants, as well as those measuring the minimum effective dose of anaesthetic drug. This resulted in the exclusion of five studies from the original review. DATA COLLECTION AND ANALYSIS Two authors independently assessed trial quality and extracted data. We used standard Cochrane methodological procedures, including an assessment of risk of bias and degree of practitioner experience for all studies. MAIN RESULTS We included 32 RCTs with 2844 adult participants. Twenty-six assessed upper-limb and six assessed lower-limb blocks. Seventeen compared ultrasound with peripheral nerve stimulation (PNS), and nine compared ultrasound combined with nerve stimulation (US + NS) against PNS alone. Two studies compared ultrasound with anatomical landmark technique, one with a transarterial approach, and three were three-arm designs that included US, US + PNS and PNS.There were variations in the quality of evidence, with a lack of detail in many of the studies to judge whether randomization, allocation concealment and blinding of outcome assessors was sufficient. It was not possible to blind practitioners and there was therefore a high risk of performance bias across all studies, leading us to downgrade the evidence for study limitations using GRADE. There was insufficient detail on the experience and expertise of practitioners and whether experience was equivalent between intervention and control.We performed meta-analysis for our main outcomes. We found that ultrasound guidance produces superior peripheral nerve block success rates, with more blocks being assessed as sufficient for surgery following sensory or motor testing (Mantel-Haenszel (M-H) odds ratio (OR), fixed-effect 2.94 (95% confidence interval (CI) 2.14 to 4.04); 1346 participants), and fewer blocks requiring supplementation or conversion to general anaesthetic (M-H OR, fixed-effect 0.28 (95% CI 0.20 to 0.39); 1807 participants) compared with the use of PNS, anatomical landmark techniques or a transarterial approach. We were not concerned by risks of indirectness, imprecision or inconsistency for these outcomes and used GRADE to assess these outcomes as being of moderate quality. Results were similarly advantageous for studies comparing US + PNS with NS alone for the above outcomes (M-H OR, fixed-effect 3.33 (95% CI 2.13 to 5.20); 719 participants, and M-H OR, fixed-effect 0.34 (95% CI 0.21 to 0.56); 712 participants respectively). There were lower incidences of paraesthesia in both the ultrasound comparison groups (M-H OR, fixed-effect 0.42 (95% CI 0.23 to 0.76); 471 participants, and M-H OR, fixed-effect 0.97 (95% CI 0.30 to 3.12); 178 participants respectively) and lower incidences of vascular puncture in both groups (M-H OR, fixed-effect 0.19 (95% CI 0.07 to 0.57); 387 participants, and M-H OR, fixed-effect 0.22 (95% CI 0.05 to 0.90); 143 participants). There were fewer studies for these outcomes and we therefore downgraded both for imprecision and paraesthesia for potential publication bias. This gave an overall GRADE assessment of very low and low for these two outcomes respectively. Our analysis showed that it took less time to perform nerve blocks in the ultrasound group (mean difference (MD), IV, fixed-effect -1.06 (95% CI -1.41 to -0.72); 690 participants) but more time to perform the block when ultrasound was combined with a PNS technique (MD, IV, fixed-effect 0.76 (95% CI 0.55 to 0.98); 587 participants). With high levels of unexplained statistical heterogeneity, we graded this outcome as very low quality. We did not combine data for other outcomes as study results had been reported using differing scales or with a combination of mean and median data, but our interpretation of individual study data favoured ultrasound for a reduction in other minor complications and reduction in onset time of block and number of attempts to perform block. AUTHORS' CONCLUSIONS There is evidence that peripheral nerve blocks performed by ultrasound guidance alone, or in combination with PNS, are superior in terms of improved sensory and motor block, reduced need for supplementation and fewer minor complications reported. Using ultrasound alone shortens performance time when compared with nerve stimulation, but when used in combination with PNS it increases performance time.We were unable to determine whether these findings reflect the use of ultrasound in experienced hands and it was beyond the scope of this review to consider the learning curve associated with peripheral nerve blocks by ultrasound technique compared with other methods.
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Affiliation(s)
- Sharon R Lewis
- Royal Lancaster InfirmaryPatient Safety ResearchPointer Court 1, Ashton RoadLancasterUKLA1 1RP
| | - Anastasia Price
- Royal Lancaster InfirmaryDepartment of AnaesthesiaAshton RoadLancasterUK
| | - Kevin J Walker
- Ayr HospitalDepartment of AnaestheticsDalmellington RoadAyrAyrshireUKKA6 6DX
| | - Ken McGrattan
- Royal Preston HospitalDepartment of AnaestheticsSharoe Green Lane NorthFulwoodPreston, LancashireUKPR2 9HT
| | - Andrew F Smith
- Royal Lancaster InfirmaryDepartment of AnaesthesiaAshton RoadLancasterUK
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Lewis SR, Price A, Walker KJ, McGrattan K, Smith AF. Ultrasound guidance for upper and lower limb blocks. THE COCHRANE DATABASE OF SYSTEMATIC REVIEWS 2015. [PMID: 26361135 DOI: 10.1002/14651858.cd006459.pub3.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
BACKGROUND Peripheral nerve blocks can be performed using ultrasound guidance. It is not yet clear whether this method of nerve location has benefits over other existing methods. This review was originally published in 2009 and was updated in 2014. OBJECTIVES The objective of this review was to assess whether the use of ultrasound to guide peripheral nerve blockade has any advantages over other methods of peripheral nerve location. Specifically, we have asked whether the use of ultrasound guidance:1. improves success rates and effectiveness of regional anaesthetic blocks, by increasing the number of blocks that are assessed as adequate2. reduces the complications, such as cardiorespiratory arrest, pneumothorax or vascular puncture, associated with the performance of regional anaesthetic blocks SEARCH METHODS In the 2014 update we searched the Cochrane Central Register of Controlled Trials (CENTRAL; 2014, Issue 8); MEDLINE (July 2008 to August 2014); EMBASE (July 2008 to August 2014); ISI Web of Science (2008 to April 2013); CINAHL (July 2014); and LILACS (July 2008 to August 2014). We completed forward and backward citation and clinical trials register searches.The original search was to July 2008. We reran the search in May 2015. We have added 11 potential new studies of interest to the list of 'Studies awaiting classification' and will incorporate them into the formal review findings during future review updates. SELECTION CRITERIA We included randomized controlled trials (RCTs) comparing ultrasound-guided peripheral nerve block of the upper and lower limbs, alone or combined, with at least one other method of nerve location. In the 2014 update, we excluded studies that had given general anaesthetic, spinal, epidural or other nerve blocks to all participants, as well as those measuring the minimum effective dose of anaesthetic drug. This resulted in the exclusion of five studies from the original review. DATA COLLECTION AND ANALYSIS Two authors independently assessed trial quality and extracted data. We used standard Cochrane methodological procedures, including an assessment of risk of bias and degree of practitioner experience for all studies. MAIN RESULTS We included 32 RCTs with 2844 adult participants. Twenty-six assessed upper-limb and six assessed lower-limb blocks. Seventeen compared ultrasound with peripheral nerve stimulation (PNS), and nine compared ultrasound combined with nerve stimulation (US + NS) against PNS alone. Two studies compared ultrasound with anatomical landmark technique, one with a transarterial approach, and three were three-arm designs that included US, US + PNS and PNS.There were variations in the quality of evidence, with a lack of detail in many of the studies to judge whether randomization, allocation concealment and blinding of outcome assessors was sufficient. It was not possible to blind practitioners and there was therefore a high risk of performance bias across all studies, leading us to downgrade the evidence for study limitations using GRADE. There was insufficient detail on the experience and expertise of practitioners and whether experience was equivalent between intervention and control.We performed meta-analysis for our main outcomes. We found that ultrasound guidance produces superior peripheral nerve block success rates, with more blocks being assessed as sufficient for surgery following sensory or motor testing (Mantel-Haenszel (M-H) odds ratio (OR), fixed-effect 2.94 (95% confidence interval (CI) 2.14 to 4.04); 1346 participants), and fewer blocks requiring supplementation or conversion to general anaesthetic (M-H OR, fixed-effect 0.28 (95% CI 0.20 to 0.39); 1807 participants) compared with the use of PNS, anatomical landmark techniques or a transarterial approach. We were not concerned by risks of indirectness, imprecision or inconsistency for these outcomes and used GRADE to assess these outcomes as being of moderate quality. Results were similarly advantageous for studies comparing US + PNS with NS alone for the above outcomes (M-H OR, fixed-effect 3.33 (95% CI 2.13 to 5.20); 719 participants, and M-H OR, fixed-effect 0.34 (95% CI 0.21 to 0.56); 712 participants respectively). There were lower incidences of paraesthesia in both the ultrasound comparison groups (M-H OR, fixed-effect 0.42 (95% CI 0.23 to 0.76); 471 participants, and M-H OR, fixed-effect 0.97 (95% CI 0.30 to 3.12); 178 participants respectively) and lower incidences of vascular puncture in both groups (M-H OR, fixed-effect 0.19 (95% CI 0.07 to 0.57); 387 participants, and M-H OR, fixed-effect 0.22 (95% CI 0.05 to 0.90); 143 participants). There were fewer studies for these outcomes and we therefore downgraded both for imprecision and paraesthesia for potential publication bias. This gave an overall GRADE assessment of very low and low for these two outcomes respectively. Our analysis showed that it took less time to perform nerve blocks in the ultrasound group (mean difference (MD), IV, fixed-effect -1.06 (95% CI -1.41 to -0.72); 690 participants) but more time to perform the block when ultrasound was combined with a PNS technique (MD, IV, fixed-effect 0.76 (95% CI 0.55 to 0.98); 587 participants). With high levels of unexplained statistical heterogeneity, we graded this outcome as very low quality. We did not combine data for other outcomes as study results had been reported using differing scales or with a combination of mean and median data, but our interpretation of individual study data favoured ultrasound for a reduction in other minor complications and reduction in onset time of block and number of attempts to perform block. AUTHORS' CONCLUSIONS There is evidence that peripheral nerve blocks performed by ultrasound guidance alone, or in combination with PNS, are superior in terms of improved sensory and motor block, reduced need for supplementation and fewer minor complications reported. Using ultrasound alone shortens performance time when compared with nerve stimulation, but when used in combination with PNS it increases performance time.We were unable to determine whether these findings reflect the use of ultrasound in experienced hands and it was beyond the scope of this review to consider the learning curve associated with peripheral nerve blocks by ultrasound technique compared with other methods.
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Affiliation(s)
- Sharon R Lewis
- Patient Safety Research, Royal Lancaster Infirmary, Pointer Court 1, Ashton Road, Lancaster, UK, LA1 1RP
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Vadivelu N, Kai AM, Maslin B, Kodumudi V, Antony S, Blume P. Role of regional anesthesia in foot and ankle surgery. Foot Ankle Spec 2015; 8:212-9. [PMID: 25655517 DOI: 10.1177/1938640015569769] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
UNLABELLED Regional anesthesia has increasingly expanded its role in the perioperative care of patients undergoing foot and ankle surgery. In addition to avoiding side effects associated with both general anesthesia and neuraxial anesthetic techniques, especially those related to cardiovascular and pulmonary systems, regional nerve blocks have been shown to improve postoperative pain and reduce hospital stay and associated expenses. The techniques utilized to achieve analgesia of the foot and ankle are diverse, multifaceted, and often incorporate ultrasound guidance. Given the aging of patient populations, and especially the growing incidence of cardiovascular-, pulmonary-, and obesity-related morbidity, the use of regional blocks is likely to expand in these surgical procedures. This review highlights some of the most current developments in the expanding role of regional anesthesia in foot and ankle surgery. LEVELS OF EVIDENCE Therapeutic, Level II.
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Affiliation(s)
- Nalini Vadivelu
- Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut (NV, BM, SA)Stony Brook University School of Medicine, Stony Brook, New York (AMK)College of Liberal Arts and Sciences, University of Connecticut, Storrs, Connecticut (VK)Yale-New Haven Hospital, New Haven, Connecticut (PB)
| | - Alice M Kai
- Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut (NV, BM, SA)Stony Brook University School of Medicine, Stony Brook, New York (AMK)College of Liberal Arts and Sciences, University of Connecticut, Storrs, Connecticut (VK)Yale-New Haven Hospital, New Haven, Connecticut (PB)
| | - Benjamin Maslin
- Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut (NV, BM, SA)Stony Brook University School of Medicine, Stony Brook, New York (AMK)College of Liberal Arts and Sciences, University of Connecticut, Storrs, Connecticut (VK)Yale-New Haven Hospital, New Haven, Connecticut (PB)
| | - Vijay Kodumudi
- Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut (NV, BM, SA)Stony Brook University School of Medicine, Stony Brook, New York (AMK)College of Liberal Arts and Sciences, University of Connecticut, Storrs, Connecticut (VK)Yale-New Haven Hospital, New Haven, Connecticut (PB)
| | - Sible Antony
- Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut (NV, BM, SA)Stony Brook University School of Medicine, Stony Brook, New York (AMK)College of Liberal Arts and Sciences, University of Connecticut, Storrs, Connecticut (VK)Yale-New Haven Hospital, New Haven, Connecticut (PB)
| | - Peter Blume
- Department of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut (NV, BM, SA)Stony Brook University School of Medicine, Stony Brook, New York (AMK)College of Liberal Arts and Sciences, University of Connecticut, Storrs, Connecticut (VK)Yale-New Haven Hospital, New Haven, Connecticut (PB)
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