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Bigalke S, Maeßen TV, Schnabel K, Kaiser U, Segelcke D, Meyer-Frießem CH, Liedgens H, Macháček PA, Zahn PK, Pogatzki-Zahn EM. Assessing outcome in postoperative pain trials: are we missing the point? A systematic review of pain-related outcome domains reported in studies early after total knee arthroplasty. Pain 2021; 162:1914-1934. [PMID: 33492036 DOI: 10.1097/j.pain.0000000000002209] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/21/2020] [Indexed: 01/04/2023]
Abstract
ABSTRACT The management of acute postoperative pain remains suboptimal. Systematic reviews and Cochrane analysis can assist with collating evidence about treatment efficacy, but the results are limited in part by heterogeneity of endpoints in clinical trials. In addition, the chosen endpoints may not be entirely clinically relevant. To investigate the endpoints assessed in perioperative pain trials, we performed a systematic literature review on outcome domains assessing effectiveness of acute pain interventions in trials after total knee arthroplasty. We followed the Cochrane recommendations for systematic reviews, searching PubMed, Cochrane, and Embase, resulting in the screening of 1590 potentially eligible studies. After final inclusion of 295 studies, we identified 11 outcome domains and 45 subdomains/descriptors with the domain "pain"/"pain intensity" most commonly assessed (98.3%), followed by "analgesic consumption" (88.8%) and "side effects" (75.3%). By contrast, "physical function" (53.5%), "satisfaction" (28.8%), and "psychological function" (11.9%) were given much less consideration. The combinations of outcome domains were inhomogeneous throughout the studies, regardless of the type of pain management investigated. In conclusion, we found that there was high variability in outcome domains and inhomogeneous combinations, as well as inconsistent subdomain descriptions and utilization in trials comparing for effectiveness of pain interventions after total knee arthroplasty. This points towards the need for harmonizing outcome domains, eg, by consenting on a core outcome set of domains which are relevant for both stakeholders and patients. Such a core outcome set should include at least 3 domains from 3 different health core areas such as pain intensity, physical function, and one psychological domain.
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Affiliation(s)
- Stephan Bigalke
- Clinic for Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Münster, Münster, Germany
- Clinic for Anaesthesiology, Intensive and Pain Medicine, Ruhr-University Bochum, BG-University Hospital Bergmannsheil gGmbH, Bochum, Germany
| | - Timo V Maeßen
- Clinic for Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Münster, Münster, Germany
| | - Kathrin Schnabel
- Clinic for Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Münster, Münster, Germany
| | - Ulrike Kaiser
- University Pain Centre, University Hospital Carl Gustav Carus Dresden, Dresden, Germany
| | - Daniel Segelcke
- Clinic for Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Münster, Münster, Germany
| | - Christine H Meyer-Frießem
- Clinic for Anaesthesiology, Intensive and Pain Medicine, Ruhr-University Bochum, BG-University Hospital Bergmannsheil gGmbH, Bochum, Germany
| | | | - Philipp A Macháček
- Faculty of Electrical Engineering and Information Technology, Ruhr-University Bochum, Bochum, Germany
| | - Peter K Zahn
- Clinic for Anaesthesiology, Intensive and Pain Medicine, Ruhr-University Bochum, BG-University Hospital Bergmannsheil gGmbH, Bochum, Germany
| | - Esther M Pogatzki-Zahn
- Clinic for Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Münster, Münster, Germany
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Adhikari P, Subedi A, Sah BP, Pokharel K. Analgesic effects of intravenous ketamine after spinal anaesthesia for non-elective caesarean delivery: a randomised controlled trial. BMJ Open 2021; 11:e044168. [PMID: 34193480 PMCID: PMC8246353 DOI: 10.1136/bmjopen-2020-044168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES This study aimed to determine if low dose intravenous ketamine is effective in reducing opioid use and pain after non-elective caesarean delivery. DESIGN Prospective, randomised, double-blind. SETTING Tertiary hospital, Bisheshwar Prasad Koirala Institute of Health Sciences, Dharan, Nepal PARTICIPANTS: 80 patients undergoing non-elective caesarean section with spinal anaesthesia. INTERVENTIONS Patients were allocated in 1:1 ratio to receive either intravenous ketamine 0.25 mg/kg or normal saline before the skin incision. PRIMARY AND SECONDARY OUTCOME MEASURES The primary outcome was the total amount of morphine equivalents needed up to postoperative 24 hours. Secondary outcome measures were postoperative pain scores, time to the first perception of pain, maternal adverse effects (nausea, vomiting, hypotension, shivering, diplopia, nystagmus, hallucination) and neonatal Apgar score at 1 and 5 min, neonatal respiratory depression and neonatal intensive-care referral. RESULTS The median (range) cumulative morphine consumption during the first 24 hours of surgery was 0 (0-4.67) mg in ketamine group and 1 (0-6) mg in saline group (p=0.003). The median (range) time to the first perception of pain was 6 (1-12) hours and 2 (0.5-6) hours in ketamine and saline group, respectively (p<0.001). A significant reduction in postoperative pain scores was observed only at 2 hours and 6 hours in the ketamine group compared with placebo group (p<0.05). Maternal adverse effects and neonatal outcomes were comparable between the two groups. CONCLUSIONS Intravenous administration of low dose ketamine before surgical incision significantly reduced the opioid requirement in the first 24 hours in patients undergoing non-elective caesarean delivery. TRIAL REGISTRATION NUMBER NCT03450499.
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Affiliation(s)
| | - Asish Subedi
- Anesthesiology & Critical Care, BP Koirala Institute of Health Sciences, Dharan, Nepal
| | - Birendra Prasad Sah
- Anesthesiology & Critical Care, BP Koirala Institute of Health Sciences, Dharan, Nepal
| | - Krishna Pokharel
- Anesthesiology & Critical Care, BP Koirala Institute of Health Sciences, Dharan, Nepal
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Hannon CP, Fillingham YA, Nam D, Courtney PM, Curtin BM, Vigdorchik J, Mullen K, Casambre F, Riley C, Hamilton WG, Della Valle CJ. The Efficacy and Safety of Opioids in Total Joint Arthroplasty: Systematic Review and Direct Meta-Analysis. J Arthroplasty 2020; 35:2759-2771.e13. [PMID: 32571589 DOI: 10.1016/j.arth.2020.05.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 05/18/2020] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Opioids are frequently used to treat pain after total joint arthroplasty (TJA). The purpose of this study was to evaluate the efficacy and safety of opioids in primary TJA to support the combined clinical practice guidelines of the American Association of Hip and Knee Surgeons, American Academy of Orthopaedic Surgeons, Hip Society, Knee Society, and the American Society of Regional Anesthesia and Pain Management. METHODS The MEDLINE, EMBASE, and Cochrane Central Register of controlled trials were searched for studies published before November 2018 on opioids in TJA. All included studies underwent qualitative and quantitative homogeneity testing followed by a systematic review and direct comparison meta-analysis to assess the efficacy and safety of opioids. RESULTS Preoperative opioid use leads to increased opioid consumption and complications after TJA along with a higher risk of chronic opioid use and inferior patient-reported outcomes. Scheduled opioids administered preemptively, intraoperatively, or postoperatively reduce the need for additional opioids for breakthrough pain. Prescribing fewer opioid pills after discharge is associated with equivalent functional outcomes and decreased opioid consumption. Tramadol reduces postoperative opioid consumption but increases the risk of postoperative nausea, vomiting, dry mouth, and dizziness. CONCLUSION Moderate evidence supports the use of opioids in TJA to reduce postoperative pain and opioid consumption. Opioids should be used cautiously as they may increase the risk of complications, such as respiratory depression and sedation, especially if combined with other central nervous system depressants or used in the elderly.
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Affiliation(s)
- Charles P Hannon
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL
| | - Yale A Fillingham
- Department of Orthopaedic Surgery, Dartmouth Hitchcock Medical Center, Lebanon, NH
| | - Denis Nam
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL
| | - P Maxwell Courtney
- Department of Orthopaedic Surgery, The Rothman Institute, Thomas Jefferson University, Philadelphia, PA
| | | | - Jonathan Vigdorchik
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY
| | - Kyle Mullen
- Department of Research, Quality, and Scientific Affairs, American Academy of Orthopaedic Surgeons, Rosemont, IL
| | - Francisco Casambre
- Department of Research, Quality, and Scientific Affairs, American Academy of Orthopaedic Surgeons, Rosemont, IL
| | - Connor Riley
- Department of Research, Quality, and Scientific Affairs, American Academy of Orthopaedic Surgeons, Rosemont, IL
| | | | - Craig J Della Valle
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL
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4
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Tan TL, Longenecker AS, Rhee JH, Good RP, Emper WD, Freedman KB, Shaner JL, McComb JJ, Levicoff EA. Intraoperative Ketamine in Total Knee Arthroplasty Does Not Decrease Pain and Narcotic Consumption: A Prospective Randomized Controlled Trial. J Arthroplasty 2019; 34:1640-1645. [PMID: 31084971 DOI: 10.1016/j.arth.2019.04.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 03/26/2019] [Accepted: 04/08/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Multiple studies have demonstrated that ketamine, a glutamate receptor blocker, may decrease postoperative pain in abdominal and orthopedic surgeries. However, its role with spinal anesthesia and total knee arthroplasty (TKA) remains unknown. The purpose of this study is to determine the efficacy of subanesthetic dosing of ketamine during TKA on postoperative pain and narcotic consumption. METHODS In this prospective, randomized, double-blinded clinical trial, we enrolled 91 patients undergoing primary TKA with spinal anesthesia in a single institution from 2017 to 2018. Patients were randomized to receive intraoperative ketamine infusion at a rate of 6 mcg/kg/min for 75 minutes or a saline placebo. All patients received spinal anesthesia and otherwise identical surgical approaches, pain management, and rehabilitation protocols. Patient-reported visual analog pain scores were calculated preoperatively, postoperative days (POD) 0-7, and 2 weeks. Narcotic consumption was evaluated on POD 0 and 1. RESULTS There was no difference in average pain between ketamine and placebo at all time points except for at PODs 1 (45 vs 56, P = .041) and 4 (39 vs 49, P = .040). For least pain experienced, patients administered with ketamine experienced a reduction in pain only at POD 4 (22 vs 35, P = .011). There was no difference in maximum pain cohorts at all time points of the study or in-hospital morphine equivalents between the 2 cohorts. CONCLUSION As part of multimodal pain management protocol, intraoperative ketamine does not result in a clinically significant improvement in pain and narcotic consumption following TKA.
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Affiliation(s)
- Timothy L Tan
- Rothman Orthopaedic Institute, Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, PA
| | | | - Janet H Rhee
- Rothman Orthopaedic Institute, Bryn Mawr Hospital, Bryn Mawr, PA
| | - Robert P Good
- Rothman Orthopaedic Institute, Bryn Mawr Hospital, Bryn Mawr, PA
| | - William D Emper
- Rothman Orthopaedic Institute, Bryn Mawr Hospital, Bryn Mawr, PA
| | - Kevin B Freedman
- Rothman Orthopaedic Institute, Bryn Mawr Hospital, Bryn Mawr, PA
| | - Julie L Shaner
- Rothman Orthopaedic Institute, Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, PA
| | | | - Eric A Levicoff
- Rothman Orthopaedic Institute, Bryn Mawr Hospital, Bryn Mawr, PA
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5
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Anwar S, O'Brien B. The role of intraoperative interventions to minimise chronic postsurgical pain. Br J Pain 2017; 11:186-191. [PMID: 29123663 DOI: 10.1177/2049463717720640] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Chronic postsurgical pain (CPSP) is the most common complication following surgery, with increasing evidence of both its prevalence and severity. While awareness of the various risk factors for this long-term condition is also increasing, effective prevention remains elusive. In this review, we describe the increasing evidence for preventive or 'protective' strategies. Controversies and conflicting human data are presented along with suggestions for improved future study.
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Affiliation(s)
- Sibtain Anwar
- Department of Perioperative Medicine, Barts Heart Centre, London, UK.,NIHR Biomedical Research Centre at Barts, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, London, UK
| | - Ben O'Brien
- Department of Perioperative Medicine, Barts Heart Centre, London, UK.,NIHR Biomedical Research Centre at Barts, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, London, UK
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Lai HC, Hsieh CB, Wong CS, Yeh CC, Wu ZF. Preincisional and postoperative epidural morphine, ropivacaine, ketamine, and naloxone treatment for postoperative pain management in upper abdominal surgery. ACTA ACUST UNITED AC 2016; 54:88-92. [DOI: 10.1016/j.aat.2016.10.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Revised: 10/03/2016] [Accepted: 10/05/2016] [Indexed: 11/28/2022]
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Sonawane N, Balavenkatasubramanian J, Gurumoorthi P, Jadhav P. Quality of post-operative analgesia after epidural dexmedetomidine and ketamine: A comparative pilot study. Indian J Anaesth 2016; 60:766-768. [PMID: 27761042 PMCID: PMC5064703 DOI: 10.4103/0019-5049.191698] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Díaz-Heredia J, Loza E, Cebreiro I, Ruiz Iban M. Preventive analgesia in hip or knee arthroplasty: A systematic review. Rev Esp Cir Ortop Traumatol (Engl Ed) 2015. [DOI: 10.1016/j.recote.2015.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Díaz-Heredia J, Loza E, Cebreiro I, Ruiz Iban MÁ. Preventive analgesia in hip or knee arthroplasty: a systematic review. Rev Esp Cir Ortop Traumatol (Engl Ed) 2014; 59:73-90. [PMID: 25450160 DOI: 10.1016/j.recot.2014.09.004] [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: 03/20/2014] [Revised: 09/09/2014] [Accepted: 09/16/2014] [Indexed: 10/24/2022] Open
Abstract
OBJECTIVE To analyze the efficacy and safety of preventive analgesia in patients undergoing hip or knee arthroplasty due to osteoarthritis. METHODS A systematic literature review was performed, using a defined a sensitive strategy on Medline, Embase and Cochrane Library up to May 2013. The inclusion criteria were: patients undergoing knee and/or hip arthroplasty, adults with moderate or severe pain (≥4 on a Visual Analog Scale). The intervention, the use (efficacy and safety) of pharmacological treatment (preventive) close to surgery was recorded. Oral, topical and skin patch drugs were included. Systematic reviews, meta-analysis, controlled trials and observational studies were selected. RESULTS A total of 36 articles, of moderate quality, were selected. The patients included were representative of those undergoing knee and/or hip arthroplasty in Spain. They had a mean age >50 years, higher number of women, and reporting moderate to severe pain (≥4 on a Visual Analog Scale). Possurgical pain was mainly evaluated with a Visual Analog Scale. A wide variation was found as regards the drugs used in the preventive protocols, including acetaminophen, classic NSAID, Cox-2, opioids, corticosteroids, antidepressants, analgesics for neuropathic pain, as well as others, such as magnesium, ketamine, nimodipine or clonidine. In general, all of them decreased post-surgical pain without severe adverse events. CONCLUSIONS The use or one or more pre-surgical analgesics decreases the use of post-surgical drugs, at least for short term pain.
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Affiliation(s)
- J Díaz-Heredia
- Servicio de Traumatología y Cirugía Ortopédica, Hospital Universitario Ramón y Cajal, Madrid, España.
| | - E Loza
- Instituto de Salud Musculoesquelética, Madrid, España
| | - I Cebreiro
- Servicio de Traumatología y Cirugía Ortopédica, Hospital Universitario Ramón y Cajal, Madrid, España
| | - M Á Ruiz Iban
- Servicio de Traumatología y Cirugía Ortopédica, Hospital Universitario Ramón y Cajal, Madrid, España
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Yang L, Zhang J, Zhang Z, Zhang C, Zhao D, Li J. Preemptive analgesia effects of Ketamine in patients undergoing surgery. A meta-analysis. Acta Cir Bras 2014; 29:819-25. [DOI: 10.1590/s0102-86502014001900009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 11/21/2014] [Indexed: 01/03/2023] Open
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Souzdalnitski D, Rech GR, Naydinskiy A, Suzdalnitskaya D, Isakov RV, Guirguis M. Ketamine in perioperative analgesia for knee surgeries: Review of evidence from randomized controlled trials. ACTA ACUST UNITED AC 2014. [DOI: 10.1053/j.trap.2015.10.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Pre-emptive treatment of lidocaine attenuates neuropathic pain and reduces pain-related biochemical markers in the rat cuneate nucleus in median nerve chronic constriction injury model. Anesthesiol Res Pract 2011; 2012:921405. [PMID: 22162685 PMCID: PMC3227229 DOI: 10.1155/2012/921405] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2011] [Accepted: 09/08/2011] [Indexed: 11/17/2022] Open
Abstract
This study investigates the effects of lidocaine pre-emptive treatment on neuropathic pain behavior, injury discharges of nerves, neuropeptide Y (NPY) and c-Fos expression in the cuneate nucleus (CN) after median nerve chronic constriction injury (CCI). Behavior tests demonstrated that the pre-emptive lidocaine treatment dose dependently delayed and attenuated the development of mechanical allodynia within a 28-day period. Electrophysiological recording was used to examine the changes in injury discharges of the nerves. An increase in frequency of injury discharges was observed and peaked at postelectrical stimulation stage in the presaline group, which was suppressed by lidocaine pre-emptive treatment in a dose-dependent manner. Lidocaine pretreatment also reduced the number of injury-induced NPY-like immunoreactive (NPY-LI) fibers and c-Fos-LI neurons within the CN in a dose-dependent manner. Furthermore, the mean number of c-Fos-LI neurons in the CN was significantly correlated to the NPY reduction level and the sign of mechanical allodynia following CCI.
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Taleska G, Trajkovska T, Kokareva A, Popovska A, Naumoska M, Gavrilovska A, Dzhambazovska-Trajkovska V, Toleska M, Dimov A. Preemptive Epidural Analgesia with Bupivacaine and Sufentanyl and the Effects of Epiduraly Added Epinephrine for Thoracic Surgery. ACTA ACUST UNITED AC 2010. [DOI: 10.3889/mjms.1857-5773.2010.0092] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Cagla Ozbakis Akkurt B, Inanoglu K, Kalaci A, Turhanoglu S, Asfuroglu Z, Tumkaya F. Effects of intravenous small dose ketamine and midazolam on postoperative pain following knee arthroscopy. Pain Pract 2009; 9:289-95. [PMID: 19490462 DOI: 10.1111/j.1533-2500.2009.00278.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND The aim of this randomized, double blind, controlled study was to assess the effect of intravenous coadministration of small dose midazolam with ketamine on postoperative pain and spinal block level. METHODS Sixty patients undergoing arthroscopic knee surgery under spinal anesthesia were randomized into three groups: Group I (saline control); group II (ketamine 0.15 mg/kg i.v.); and group III (ketamine 0.15 mg/kg + midazolam 0.01 mg/kg i.v.). Sedation scores, visual analogue scores, time to first postoperative analgesic, total meperidine consumption, patient satisfaction, sensory and motor block levels, and two segments regression times were assessed. RESULTS Sedation scores were significantly lower in group I when compared with groups II and III at 1, 3, 5, and 10 minutes after administration of the spinal anesthetic (P = 0.001). Sensory block was significantly higher in group III (P = 0.001) in comparison with group II. Two segment regression time was significantly longer in group II than group I, whereas no difference was found between groups II and III. Total meperidine consumption was significantly higher in group I (P = 0.001). Patient satisfaction was significantly higher in group III compared with group I (P = 0.001), but no difference was found between groups II and III (P = 0.3). CONCLUSION Ketamine improved the postoperative pain patient satisfaction, increased the maximal sensory level, and was associated with lower sedation scores in the first 15 minutes after administration. Group I was also associated with decreased total meperidine consumption and delayed the time to first recue analgesic administration. Coadministration of ketamine and midazolam did not provide any further benefit over ketamine alone.
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Fischer HBJ, Simanski CJP, Sharp C, Bonnet F, Camu F, Neugebauer EAM, Rawal N, Joshi GP, Schug SA, Kehlet H. A procedure-specific systematic review and consensus recommendations for postoperative analgesia following total knee arthroplasty. Anaesthesia 2008; 63:1105-23. [PMID: 18627367 DOI: 10.1111/j.1365-2044.2008.05565.x] [Citation(s) in RCA: 230] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The PROSPECT Working Group, a collaboration of anaesthetists and surgeons, conducts systematic reviews of postoperative pain management for different surgical procedures (http://www.postoppain.org). Evidence-based consensus recommendations for the effective management of postoperative pain are then developed from these systematic reviews, incorporating clinical practice observations, and transferable evidence from other relevant procedures. We present the results of a systematic review of pain and other outcomes following analgesic, anaesthetic and surgical interventions for total knee arthroplasty (TKA). The evidence from this review supports the use of general anaesthesia combined with a femoral nerve block for surgery and postoperative analgesia, or alternatively spinal anaesthesia with local anaesthetic plus spinal morphine. The primary technique, together with cooling and compression techniques, should be supplemented with paracetamol and conventional non-steroidal anti-inflammatory drugs or COX-2-selective inhibitors, plus intravenous strong opioids (high-intensity pain) or weak opioids (moderate- to low-intensity pain).
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Affiliation(s)
- H B J Fischer
- Department of Anaesthesia, Alexandra Hospital, Redditch, UK.
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16
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Management of Perioperative Pain. Surgery 2008. [DOI: 10.1007/978-0-387-68113-9_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Chizh BA. Low dose ketamine: a therapeutic and research tool to explore N-methyl-D-aspartate (NMDA) receptor-mediated plasticity in pain pathways. J Psychopharmacol 2007; 21:259-71. [PMID: 17591654 DOI: 10.1177/0269881105062484] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Ketamine is a dissociative anaesthetic that has been used in the clinic for many years. At low, sub-anaesthetic doses, it is a relatively selective and potent antagonist of the N-methyl-D-aspartate (NMDA) receptor. It belongs to the class of uncompetitive antagonists and blocks the receptor by binding to a specific site within the NMDA receptor channel when it is open. Like other compounds of this class, ketamine can cause hallucinations or other untoward central effects which limit its use in the clinic. Nevertheless, because of the evidence on the importance of NMDA receptor-mediated pLasticity in chronic pain, low doses of ketamine have been explored in a wide range of pain conditions. The majority of studies with ketamine have shown efficacy; however, it has not been possible to separate safely the pain relief from the side effects of the drug. Hence, clinical use of ketamine as a pain treatment is very limited. Nevertheless, ketamine has served as a useful tool to provide a compelling rationale for developing other NMDA antagonists. Some of the new compounds of this class, particularly those acting at the NR2B subtype of the NMDA receptor, have shown promise in preclinical and clinical studies.
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Affiliation(s)
- Boris A Chizh
- GlaxoSmithKline, Addenbrooke's Centre for Clinical Investigation, Addenbrooke's Hospital, Cambridge, UK.
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Sprung J, Sanders MS, Warner ME, Gebhart JB, Stanhope CR, Jankowski CJ, Liedl L, Schroeder DR, Brown DR, Warner DO. Pain relief and functional status after vaginal hysterectomy: intrathecal versus general anesthesia. Can J Anaesth 2006; 53:690-700. [PMID: 16803917 DOI: 10.1007/bf03021628] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
PURPOSE We tested the hypothesis that the use of subarachnoid block (SAB) for vaginal hysterectomy produces superior postoperative analgesia and improves functional status at 12 weeks postoperatively. METHODS In this randomized controlled trial 89 patients received either standardized general anesthesia vs SAB with bupivacaine, clonidine, and morphine. Postoperatively, patients in both groups received multimodal pain management. Primary outcomes included evaluation of pain and functional status (SF-36 Health Survey) over the 12 postoperative weeks. RESULTS Pain was well controlled throughout the study, as judged from the average pain numerical scale scores of < or = 3 in both groups, at all times studied. Intrathecal analgesia lessened pain and decreased the use of morphine both in the postanesthesia care unit (PACU) and over the first 12 hr after discharge from the PACU (P < 0.001). Although patients who received SAB had a lower frequency of postoperative nausea in the PACU than the patients in the general anesthesia group (P = 0.021), this effect was not extended beyond the PACU stay. Subarachnoid block did not affect the length of hospitalization. At the two-week follow-up 69% of patients in the SAB group and 48% patients in the general anesthesia group were pain free (P = 0.044). At all evaluation intervals patients' functional status was comparable between the SAB and general anesthesia group. CONCLUSIONS A significantly better immediate postoperative analgesia was present in the SAB group, and the duration was consistent with the expected action of intrathecally administered drugs. Two weeks after surgery a higher percentage of the patients in the SAB group reported no pain. However, SAB had no effect on either length of hospitalization or patients' postoperative functional status.
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Affiliation(s)
- Juraj Sprung
- Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota 55905, USA.
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19
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Guedes AGP, Pluhar GE, Daubs BM, Rudé EP. Effects of preoperative epidural administration of racemic ketamine for analgesia in sheep undergoing surgery. Am J Vet Res 2006; 67:222-9. [PMID: 16454625 DOI: 10.2460/ajvr.67.2.222] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To investigate the effects of preoperative epidural administration of racemic ketamine to provide analgesia in sheep undergoing experimental hind limb orthopedic surgery. ANIMALS 12 adult sheep (weight range, 51.4 to 67.2 kg). PROCEDURE Sheep were anesthetized with guaifenesin, thiopental, and isoflurane; after induction of anesthesia, sheep received a lumbosacral epidural injection of ketamine (1 mg/kg; n = 6) or saline (0.9% NaCl) solution (1 mL/7 kg; 6 [control group]). Respiratory and cardiovascular variables were recorded before and at intervals during and for 6 hours after anesthesia. During that 6-hour postoperative period, analgesia was evaluated subjectively with a numeric ranking scale that included assessments of comfort, posture, movement, and response to wound palpation; buprenorphine was administered when a score > 3 (maximum score, 10) was achieved. Rectal temperature, heart and respiratory rates, and lameness were evaluated daily for 2 weeks after surgery. RESULTS At all evaluations, cardiovascular and respiratory variables were comparable between the 2 groups. Compared with control sheep, time to first administration of rescue analgesic was significantly longer and total dose of buprenorphine administered during the 6- hour postoperative period was significantly decreased for ketamine-treated sheep. During the second week following surgery, ketamine-treated sheep had significantly less lameness than control sheep. CONCLUSIONS AND CLINICAL RELEVANCE In sheep undergoing hind limb surgery, preoperative epidural administration of ketamine appears to provide analgesia in the immediate postoperative period and has residual analgesic effects, which may contribute to more rapid return of normal function in surgically treated limbs.
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Affiliation(s)
- Alonso G P Guedes
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN 55108-1016, USA
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Richebé P, Rivat C, Rivalan B, Maurette P, Simonnet G. Kétamine à faibles doses : antihyperalgésique, non analgésique. ACTA ACUST UNITED AC 2005; 24:1349-59. [PMID: 16115745 DOI: 10.1016/j.annfar.2005.07.069] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Recent data in animal experiments as in clinical trials have clearly reported that pain modulation is related to an equilibrium between antinociceptive and pronociceptive systems. Therefore, the apparent pain level could not only be a consequence of a nociceptive input increase but could also result from a pain sensitization process. Glutamate, via NMDA receptors, plays a major role in the development of such a neuronal plasticity in the central nervous system, leading to a pain hypersensitivity that could facilitate chronic pain development. By an action on NMDA receptors opioids also induce, in a dose dependent manner, an enhancement of this postoperative hypersensitivity. "Antihyperalgesic" doses of ketamine, an NMDA receptor antagonist, were able to decrease this central sensitization not only in painful animal but also in human volunteers exposed to different pain models, or in the postoperative period. Many studies have reported that ketamine effects are elicited when this drug is administered the following manner: peroperative bolus (0.1 to 0.5 mg/kg), followed by a constant infusion rate (1 to 2 microg/kg per min) during the peroperative period and for 48 to 72 hours after anaesthesia. Those ketamine doses improved postoperative pain management by reducing hyperalgesia due to both surgical trauma and high peroperative opioid doses. This antihyperalgesic action of ketamine also limited the postoperative morphine tolerance leading to a decrease in analgesic consumption and an increase in the analgesia quality.
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Affiliation(s)
- P Richebé
- Département d'anesthésie et de réanimation 3, hôpital Pellegrin, place Amélie-Raba-Léon, 33076 Bordeaux cedex, France
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Yeh CC, Jao SW, Huh BK, Wong CS, Yang CP, White WD, Wu CT. Preincisional Dextromethorphan Combined with Thoracic Epidural Anesthesia and Analgesia Improves Postoperative Pain and Bowel Function in Patients Undergoing Colonic Surgery. Anesth Analg 2005; 100:1384-1389. [PMID: 15845691 DOI: 10.1213/01.ane.0000148687.51613.b5] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Colonic surgery is associated with severe postoperative pain and postoperative ileus, which contribute to delayed hospital discharge. In previous studies, we demonstrated that IM dextromethorphan (DM) provided preemptive analgesia and improved postoperative pain. The benefit of thoracic epidural anesthesia (TEA) and postoperative epidural analgesia on postoperative pain was well demonstrated. The goal of this study was to investigate the effect of preincisional IM DM combined with intraoperative TEA and postoperative patient-controlled epidural analgesia (PCEA) on pain and bowel function after colonic surgery. Patients were randomized into 3 equal groups to receive: 1) chlorpheniramine maleate (CPM) 20 mg and general anesthesia (CPM-GA); 2) CPM 20 mg and GA combined with TEA (CPM-TEA); or 3) DM 40 mg (containing 20 mg of CPM) and GA combined with TEA (DM-TEA). The CPM, DM, and TEA with lidocaine were administered after GA induction via an IM injection and 30 min before the skin incision. All patients received postoperative PCEA for pain control. Analgesic effects were evaluated for 72 h after surgery using visual analog scale pain scores at rest and moving, time to first PCEA request for pain relief, total PCEA consumption, and the time to first passage of flatus. Statistically significant improvement of postoperative pain and bowel function was observed in the following order: DM-TEA > CPM-TEA > CPM-GA. Compared with the CPM-TEA group, the DM-TEA group averaged 1.6 points lower on first-hour pain scores, 40 min longer to first PCEA request, 15.8 mL less PCEA drug over 72 h, and 14.7 h earlier bowel function (all P < 0.01). We conclude that the combination of preincisional DM (40 mg IM), intraoperative TEA, and postoperative PCEA enhances analgesia and facilitates recovery of bowel function, suggesting possible synergistic interaction with local anesthetics and opioids.
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Affiliation(s)
- Chun-Chang Yeh
- Departments of *Anesthesiology and †Surgery, Tri-Service General Hospital, and National Defense Medical Center, Taipei, Taiwan, Republic of China; and ‡Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina
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Yoshimoto H, Nagashima K, Sato S, Hyakumachi T, Yanagibashi Y, Masuda T. A prospective evaluation of anesthesia for posterior lumbar spine fusion: the effectiveness of preoperative epidural anesthesia with morphine. Spine (Phila Pa 1976) 2005; 30:863-9. [PMID: 15834327 DOI: 10.1097/01.brs.0000158879.26544.69] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN A prospective, randomized, single-blinded study. OBJECTIVES To prospectively compare the anesthesia for posterior lumbar spinal fusion between the age- and gender-matched groups with and without preoperative epidural anesthesia with morphine. SUMMARY OF BACKGROUND DATA To reduce the blood loss, hypotensive anesthesia is frequently used in the spinal fusion. However, in spite of administration of the hypotensive agents, inadequate analgesia during operation often causes unfavorable and unexpected elevation of blood pressure resulting in excessive bleeding. As well, intractable wound pain sometimes occurs after spinal fusion due to inadequate analgesia during surgery. METHODS Forty cases of posterior lumbar spinal fusion were investigated prospectively. Twenty patients underwent preoperative epidural anesthesia with morphine and sedation by continuous intravenous administration of propofol but without administration of any kind of anesthetics, including intraoperative and/or postoperative epidural anesthesia (Group E). Another 20 patients underwent inhalation general anesthesia with sevoflurane and intermittent intravenous administration of fentanyl without any regional block (Group F). In these groups, dynamics and average mean blood pressure during surgery, blood loss during surgery, postoperative requirement of analgesics, the visual analogue scale, and accuracy of neurologic evaluation immediately after surgery were analyzed. RESULTS The average mean blood pressure during surgery was significantly lower in Group E than Group F: 57.1 mm Hg and 72.8 mm Hg, respectively. In addition, the dynamics of blood pressure were more stable in Group E than Group F. The blood loss during surgery was significantly less in Group E than in Group F: 546 g and 631 g, respectively. The patients of Group E required analgesics after surgery less frequently, and the rating on the visual analogue scale was significantly lower in Group F on the first, second, and third days after surgery. It was difficult to evaluate the neurologic status accurately in 5 patients of Group F because of the inadequate emergence immediately after surgery. There were no patients in Group E whose neurologic status was unclear because of the paralysis caused by epidural anesthesia. CONCLUSIONS To combine preoperative epidural anesthesia with other anesthetic procedure for spinal fusion contributes to maintain more stable hypotension during surgery. As a result, it will be possible to lessen the bleeding during surgery. In addition, the postoperative pain was easily controlled with administration of fewer analgesic agents in patients who underwent the epidural anesthesia. The effectiveness of pre-emptive analgesia should be emphasized to diminish the postoperative pain.
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Ong CKS, Lirk P, Seymour RA, Jenkins BJ. The efficacy of preemptive analgesia for acute postoperative pain management: a meta-analysis. Anesth Analg 2005; 100:757-773. [PMID: 15728066 DOI: 10.1213/01.ane.0000144428.98767.0e] [Citation(s) in RCA: 399] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Whether preemptive analgesic interventions are more effective than conventional regimens in managing acute postoperative pain remains controversial. We systematically searched for randomized controlled trials that specifically compared preoperative analgesic interventions with similar postoperative analgesic interventions via the same route. The retrieved reports were stratified according to five types of analgesic interventions: epidural analgesia, local anesthetic wound infiltration, systemic N-methyl-d-aspartic acid (NMDA) receptor antagonists, systemic nonsteroidal antiinflammatory drugs (NSAIDs), and systemic opioids. The primary outcome measures analyzed were the pain intensity scores, supplemental analgesic consumption, and time to first analgesic consumption. Sixty-six studies with data from 3261 patients were analyzed. Data were combined by using a fixed-effect model, and the effect size index (ES) used was the standardized mean difference. When the data from all three outcome measures were combined, the ES was most pronounced for preemptive administration of epidural analgesia (ES, 0.38; 95% confidence interval [CI], 0.28-0.47), local anesthetic wound infiltration (ES, 0.29; 95% CI, 0.17-0.40), and NSAID administration (ES, 0.39; 95% CI, 0.27-0.48). Whereas preemptive epidural analgesia resulted in consistent improvements in all three outcome variables, preemptive local anesthetic wound infiltration and NSAID administration improved analgesic consumption and time to first rescue analgesic request, but not postoperative pain scores. The least proof of efficacy was found in the case of systemic NMDA antagonist (ES, 0.09; 95% CI, -0.03 to 0.22) and opioid (ES, -0.10; 95% CI, -0.26 to 0.07) administration, and the results remain equivocal.
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Affiliation(s)
- Cliff K-S Ong
- *Department of Oral & Maxillofacial Surgery, Faculty of Dentistry, National University of Singapore; †Department of Anesthesiology & Critical Care Medicine, Faculty of Medicine, Medical University of Innsbruck, Innsbruck, Austria; ‡Department of Restorative Dentistry, Faculty of Dentistry, University of Newcastle upon Tyne, Newcastle upon Tyne, United Kingdom; and §Department of Anaesthetics and Intensive Care Medicine, College of Medicine, University of Wales, United Kingdom
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Subramaniam K, Subramaniam B, Steinbrook RA. Ketamine as Adjuvant Analgesic to Opioids: A Quantitative and Qualitative Systematic Review. Anesth Analg 2004; 99:482-95, table of contents. [PMID: 15271729 DOI: 10.1213/01.ane.0000118109.12855.07] [Citation(s) in RCA: 279] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Animal studies on ketamine and opioid tolerance have shown promising results. Clinical trials have been contradictory. We performed a systematic review of randomized, double-blind clinical trials of ketamine added to opioid analgesia. Thirty-seven trials with 51 treatment arms and 2385 patients were included. Studies were divided into 5 subgroups: IV ketamine as single dose (n = 11), continuous infusion (n = 11), patient-controlled analgesia (PCA) (n = 6), epidural ketamine with opioids (n = 8), and studies in children (n = 4). Outcome measures included pain scores, time to first request for analgesia, supplemental analgesics, and adverse events. Efficacy was estimated by statistical significance (P < 0.05) of outcome measures as reported in studies and also by calculation of weighted mean difference for pain scores during the first 24 h after surgery. As compared to morphine alone, IV PCA with ketamine and morphine did not improve analgesia. Intravenous infusion of ketamine decreased IV and epidural opioid requirements in 6 of 11 studies. A single bolus dose of ketamine decreased opioid requirements in 7 of 11 studies. Five of 8 trials with epidural ketamine showed beneficial effects. Adverse effects were not increased with small dose ketamine. We conclude that small dose ketamine is a safe and useful adjuvant to standard practice opioid-analgesia.
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MESH Headings
- Adult
- Analgesia, Epidural
- Analgesia, Patient-Controlled
- Analgesics, Opioid/administration & dosage
- Analgesics, Opioid/adverse effects
- Analgesics, Opioid/therapeutic use
- Anesthetics, Dissociative/administration & dosage
- Anesthetics, Dissociative/adverse effects
- Anesthetics, Dissociative/therapeutic use
- Child
- Double-Blind Method
- Drug Therapy, Combination
- Humans
- Infusions, Intravenous
- Ketamine/administration & dosage
- Ketamine/adverse effects
- Ketamine/therapeutic use
- Pain/drug therapy
- Pain Measurement
- Postoperative Nausea and Vomiting/epidemiology
- Randomized Controlled Trials as Topic
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Affiliation(s)
- Kathirvel Subramaniam
- Department of Anesthesiology, Critical Care & Pain Management, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA.
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McCartney CJL, Sinha A, Katz J. A Qualitative Systematic Review of the Role of N-Methyl-d-Aspartate Receptor Antagonists in Preventive Analgesia. Anesth Analg 2004; 98:1385-400, table of contents. [PMID: 15105220 DOI: 10.1213/01.ane.0000108501.57073.38] [Citation(s) in RCA: 242] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
UNLABELLED We evaluated in a qualitative systematic review the effect of N-methyl-D-aspartate (NMDA) receptor antagonists on reducing postoperative pain and analgesic consumption beyond the clinical duration of action of the target drug (preventive analgesia). Randomized trials examining the use of an NMDA antagonist in the perioperative period were sought by using a MEDLINE (1966-2003) and EMBASE (1985-2003) search. Reference sections of relevant articles were reviewed, and additional articles were obtained if they evaluated postoperative analgesia after the administration of NMDA antagonists. The primary outcome was a reduction in pain, analgesic consumption, or both in a time period beyond five half-lives of the drug under examination. Secondary outcomes included time to first analgesic request and adverse effects. Forty articles met the inclusion criteria (24 ketamine, 12 dextromethorphan, and 4 magnesium). The evidence in favor of preventive analgesia was strongest in the case of dextromethorphan and ketamine, with 67% and 58%, respectively, of studies demonstrating a reduction in pain, analgesic consumption, or both beyond the clinical duration of action of the drug concerned. None of the four studies examining magnesium demonstrated preventive analgesia. IMPLICATIONS We evaluated, in a qualitative systematic review, the effect of N-methyl D-aspartate antagonists on reducing postoperative pain and analgesic consumption beyond the clinical duration of action of the target drug (preventive analgesia). Dextromethorphan and ketamine were found to have significant immediate and preventive analgesic benefit in 67% and 58% of studies, respectively.
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Affiliation(s)
- Colin J L McCartney
- Department of Anesthesia and Pain Management, Toronto Western Hospital and University of Toronto, Ontario, Canada.
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Weinbroum AA, Bender B, Nirkin A, Chazan S, Meller I, Kollender Y. Dextromethorphan-Associated Epidural Patient-Controlled Analgesia Provides Better Pain- and Analgesics-Sparing Effects than Dextromethorphan-Associated Intravenous Patient-Controlled Analgesia After Bone-Malignancy Resection: A Randomized, Placebo-Controlled, Double-Blinded Study. Anesth Analg 2004; 98:714-22, table of contents. [PMID: 14980926 DOI: 10.1213/01.ane.0000100151.56901.eb] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
UNLABELLED Pain after bone malignancy surgery is intense and requires large amounts of analgesics. The augmented antinociceptive effects of dextromethorphan (DM), a N-methyl-D-aspartate receptor antagonist, were demonstrated previously. We assessed the use of postoperative patient-controlled epidural analgesia (PCEA) or IV patient-controlled analgesia (PCA) in patients undergoing surgery for bone malignancy under standardized combined general and epidural anesthesia with or without DM. Patients (n = 120) were randomly allocated to receive PCEA (ropivacaine 3.2 mg plus fentanyl 8 microg/dose) or IV-PCA (morphine 2 mg/dose) postoperatively, starting at subjective visual analog scale pain intensity >or=4 of 10 for up to 96 h. Placebo or DM 90 mg orally (30 patients/group/set) was given in a double-blinded manner before surgery and for 2 days afterwards. Diclofenac 75 mg IM was available as a rescue drug. DM patients used PCA and rated their pain >50% less than their placebo counterparts in each set, especially during the first 2 postoperative days (P < 0.01). Hourly and overall maximal pain intensity among PCEA patients was approximately 50% less than in the IV-PCA set (P < 0.01). Diclofenac was used 42% less (P < 0.01) by the PCA-DM patients compared with their placebo counterparts. Seven PCEA-DM and 11 IV-PCA-DM individuals reported having side effects compared with 44 in the PCEA-placebo and the IV-PCA-placebo groups (P < 0.01). Time to first ambulation was similar with both analgesia techniques but shorter among the DM-treated patients compared with the placebo recipients (1.5 +/- 0.8 versus 2.1 +/- 1.1 days, P = 0.02). Thus, DM afforded better pain control and reduced the demand for analgesics, augmented the PCEA effect versus IV-PCA, and was associated with minimal untoward effects in each analgesia set. DM patients ambulated earlier than placebo recipients. IMPLICATIONS Patients undergoing bone-malignancy surgery under combined general and epidural anesthesia received randomly patient-controlled epidural analgesia (PCEA) or IV patient-controlled analgesia (PCA) postoperatively and dextromethorphan (DM) 90 mg or placebo double-blindly for 3 days (n = 30/group/set). The DM effect was recorded with minimal untoward effects: it afforded better pain control and reduced the demand for analgesics compared with the placebo, especially when associated with PCEA. DM patients ambulated earlier than placebo recipients.
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Affiliation(s)
- Avi A Weinbroum
- Postanesthesia Care Unit, the Acute Pain Service, Tel Aviv Sourasky Medical Center and the Sackler Faculty Medicine, Tel Aviv University, Tel Aviv, Israel.
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Weinbroum AA, Bender B, Bickels J, Nirkin A, Marouani N, Chazam S, Meller I, Kollender Y. Preoperative and postoperative dextromethorphan provides sustained reduction in postoperative pain and patient-controlled epidural analgesia requirement: a randomized, placebo-controlled, double-blind study in lower-body bone malignancy-operated patients. Cancer 2003; 97:2334-40. [PMID: 12712491 DOI: 10.1002/cncr.11330] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Pain is mediated centrally by N-methyl-D-aspartate (NMDA) receptors. The antinociceptive effects of preincision dextromethorphan (DM), an NMDA antagonist, have been demonstrated in surgical patients under general or epidural anesthesia. The authors investigated the effects of DM on postoperative pain and other parameters in patients undergoing surgery for bone malignancy under standardized combined general and epidural anesthesia using patient-controlled epidural analgesia (PCEA) postoperatively. METHODS Patients received placebo or DM 90 mg (30 patients per group) in a double-blind manner preoperatively and on each of the two following days. Postoperative PCEA consisted of 1.6 mg ropivacaine plus 4 microg/mL fentanyl both continuously and by demand up to 96 hours, starting when subjective pain intensity was greater than or equal to 4/10 (visual analog score). Rescue drugs on demand (paracetamol or dipyrone orally) were also available. RESULTS The DM patients experienced about 50% (P < 0.01) less pain than their placebo counterparts for more than 2 postoperative days and they rated their overall maximal pain intensity by one-half that estimated by the placebo-treated patients (P < 0.01). The DM group also consumed 30-50% less epidural analgesics than the total amount consumed by the placebo-medicated group (P < 0.01) and demanded significantly (P < 0.05) fewer rescue drugs on the first postoperative day. They were less sedated (40-60%, P < 0.01) and reported 50% fewer overall side effects (P < 0.05). The groups were similar for the need for urinary catheterization, time of first ambulation, and/or discharge home. CONCLUSIONS A 3-day DM administration is associated with better pain reduction in patients undergoing surgery for bone malignancy under combined general and epidural anesthesia with postoperative PCEA compared with placebo without increasing side effects.
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Affiliation(s)
- Avi A Weinbroum
- Post-Anesthesia Care Unit, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
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McQueen AL, Baroletti SA. Adjuvant ketamine analgesia for the management of cancer pain. Ann Pharmacother 2003; 36:1614-9. [PMID: 12243612 DOI: 10.1345/aph.1a256] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE To review the clinical literature evaluating the utilization of intravenous ketamine for the management of cancer-related pain, to summarize the data that suggest ketamine is an appropriate adjuvant method of providing analgesia and to report a case of successful pain management using ketamine in a patient with recurrent testicular cancer at our institution. DATA SOURCES Primary literature was identified through a MEDLINE search (1966-March 2002), and additional information was obtained through secondary and tertiary sources. DATA SYNTHESIS The available data suggest that supplementation of morphine with ketamine improves analgesia in patients with cancer, and also provides insight to the controversy regarding the efficacy and adverse effects of various ketamine doses. At subanesthetic doses, ketamine may be beneficial at reducing opioid requirements and related adverse effects. CASE SUMMARY A 34-year-old white man with recurrent testicular cancer was admitted with radiating neuropathic pain of the legs and lower back. The patient was suspected to also be experiencing opioid adverse effects; therefore, alternative analgesic options were warranted. Ketamine was successful in reducing patient-reported pain and was also well tolerated. CONCLUSIONS Ketamine is an adjuvant analgesic for the treatment of cancer-related pain when other agents either fail or are intolerable. Accordingly, there are several factors that may prevent adequate pain control with opioid use; therefore, alternative analgesic options should be considered. Promise exists for ketamine as a contemporary analgesic in the appropriate patient.
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Affiliation(s)
- Angela L McQueen
- Division of Drug Information, Department of Pharmacy Services, Brigham and Women's Hospital, Boston, MA 02115, USA
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Choi PT, Bhandari M, Scott J, Douketis J. Epidural analgesia for pain relief following hip or knee replacement. Cochrane Database Syst Rev 2003; 2003:CD003071. [PMID: 12917945 PMCID: PMC10710280 DOI: 10.1002/14651858.cd003071] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Hip and knee replacement are common operative procedures to improve mobility and quality of life. Adequate pain relief is essential in the postoperative period to enable ambulation and initiation of physiotherapy. Lumbar epidural analgesia is a common modality for pain relief following these procedures. However, there is no systematic review of the evidence comparing the efficacy of epidural analgesia with other postoperative analgesic modalities. As the use of epidural analgesia may delay the initiation of anticoagulant thromboprophylaxis due to the potential risk of epidural hematoma, a synthesis of the evidence is necessary to determine whether or not alternative analgesic modalities are worse, equivalent, or better than epidural analgesia. OBJECTIVES Our objective is to answer the question: "Is lumbar epidural analgesia more efficacious than systemic analgesia or long-acting spinal analgesia for postoperative pain relief in patients after elective hip or knee replacement?" SEARCH STRATEGY MEDLINE, EMBASE, CINAHL, LILACS, and the Cochrane Controlled Trials Register were searched from their inception to June 2001. Reference lists of review articles and included studies were also reviewed for additional citations. SELECTION CRITERIA A study was included if it was a randomized or pseudo randomized controlled clinical trial of patients undergoing hip or knee replacement, in which postoperative lumbar epidural analgesia was compared to other methods for pain relief. Study selection was performed unblinded in duplicate. DATA COLLECTION AND ANALYSIS Data were collected unblinded in duplicate. Information on the patients, methods, interventions, outcomes (pain relief, postoperative function, length of stay) and adverse events were recorded. Methodological quality was assessed using a validated 5-point scale. Meta-analysis was conducted when sufficient data existed from two or more studies. Heterogeneity testing was performed using the Breslow-Day method. The fixed effects model was used unless heterogeneity was present, in which case, a random effects model was used. Continuous data were summarized as weighted mean differences (WMD) or standardized mean differences (SMD) with 95% confidence intervals (CI). Dichotomous data were summarized as odds ratios (OR) and numbers-needed-to-treat (NNT) or numbers-needed-to-harm (NNH) with their respective 95% CI. Graphical representation of continuous data used the MetaView program. MAIN RESULTS In the first four to six hours after surgery, patients receiving epidural analgesia had less pain at rest, based on visual analog scores (VAS), than patients receiving systemic analgesia (SMD -0.77; 95% CI -1.24 to -0.31). This effect was not statistically significant by 18 to 24 hours (SMD -0.29; 95% CI -0.73 to 0.16). These observations were based only on studies evaluating populations consisting of total knee replacements alone or mixed populations of total hip or total knee replacements. For pain relief with movement after surgery, patients receiving epidural analgesia reported lower pain scores than patients receiving systemic analgesia in all four studies examining these outcomes. The choice of epidural agents may also influence the extent to which epidural analgesia differs from systemic analgesia. The differences between epidural analgesia and systemic analgesia in the frequency of nausea and vomiting (OR 0.95; 95% CI 0.60 to 1.49) or depression of breathing (OR 1.07; 95% CI 0.45 to 2.54) were not statistically significant. Sedation occurred less frequently with epidural analgesia (OR 0.30; 95% CI 0.09 to 0.97) with a number-needed-to-harm of 7.7 (95% CI 3.5 to 42.0) patients for the systemic analgesia group. Retention of urine (OR 3.50, 95% CI 1.63 to 7.51; NNH 4.5, 95% CI 2.3 to 12.2), itching (OR 4.74, 95% CI 1.76 to 12.78; NNH 6.8, 95% CI 4.4 to 15.8), and low blood pressure (OR 2.78, 95% CI 1.15 to 6.72; NNH 6.7, 95% CI 3.5 to 103) were more frequent with epidural analgesia compared to systemic analgesia. There were insufficient numbers to draw conclusions on the edural analgesia compared to systemic analgesia. There were insufficient numbers to draw conclusions on the effect of epidural analgesia on serious postoperative complications, functional outcomes, or length of hospital stay. REVIEWER'S CONCLUSIONS Epidural analgesia may be useful for postoperative pain relief following major lower limb joint replacements. However, the benefits may be limited to the early (four to six hours) postoperative period. An epidural infusion of local anesthetic or local anesthetic-narcotic mixture may be better than epidural narcotic alone. The magnitude of pain relief must be weighed against the frequency of adverse events. The current evidence is insufficient to draw conclusions on the frequency of rare complications from epidural analgesia, postoperative morbidity or mortality, functional outcomes, or length of hospital stay.
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Affiliation(s)
- P T Choi
- Departments of Anaesthesia and Clinical Epidemiology & Biostatistics, McMaster University, 1200 Main Street West, Room HSC-2U5, Hamilton, Ontario, Canada, L8N 3Z5
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Abstract
The pain that accompanies surgical procedures remains prevalent and is an aspect of the perioperative experience that generates the greatest concern for patients about to undergo surgery. There is also a growing recognition of the extent that acute painful experiences can lead to longer-term painful consequences, even when tissue healing appears to be complete. The neurobiologic basis of this has been partially elucidated. The key observations are that multiple sites and multiple receptors collectively contribute, and that noxious stimuli initiate a cascade of events that sensitise the nervous system so that subsequent noxious stimuli are perceived with greater intensity and even previously non-painful stimuli can be painful. Incorporating these observations into effective perioperative regimens designed to limit acute pain and its consequences leads to a multimodal pre-emptive approach to acute pain management. Acute perioperative pain is an ideal setting for the use of pre-emptive analgesic techniques because the timing of noxious stimuli is known in advance and surgical sensitisation of the nervous system is ongoing despite adequate levels of general anaesthesia with volatile anaesthetics. The relevant neurobiology of pain, reviewed in this article, is the basis for advocating an aggressive, multimodal, pre-emptive approach to acute pain therapy throughout the entire perioperative period. A growing body of outcome studies demonstrates the long-term efficacy of this approach.
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Affiliation(s)
- Allan Gottschalk
- Department of Anesthesiology and Critical Care Medicine, Meyer 8-134, Johns Hopkins Hospital, 600 North Wolfe Street, Baltimore, MD 21287, USA.
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Ozbek H, Bilen A, Ozcengiz D, Günes Y, Ozalevli M, Akman H. The comparison of caudal ketamine, alfentanil and ketamine plus alfentanil administration for postoperative analgesia in children. Paediatr Anaesth 2002; 12:610-6. [PMID: 12358657 DOI: 10.1046/j.1460-9592.2002.00913.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Our aim was to compare the effect of single dose caudal ketamine, alfentanil or a mixture of both drugs in the treatment of pain after hypospadias repair surgery in children. METHODS The group comprised 109 boys, ASA I-II, aged 1-9 years, who were undergoing hypospadias repair surgery as day cases. The children were randomly divided into three groups for postoperative analgesia: group 1, only alfentanil (20 microg x kg(-10) was given caudally; group 2, ketamine (0.5 mg x kg(-1)) alone; and group 3, alfentanil (20 microg x kg(-1))-ketamine (0.5 mg x kg(-1)) was given caudally. The analgesic effect of caudal block was evaluated using the Children's Hospital of Eastern Ontario Pain Scale (CHEOPS) and sedation was assessed using a five-point sedation score. The first analgesic requirement time and the number of supplementary analgesics required by each child in a 24-h period were also recorded. RESULTS No statistical differences were found in demographic characteristics, haemodynamic and respiratory parameters, objective pain scores, postoperative sedation scores and duration of surgery among the groups. The median time to first analgesia was significantly shorter in group 1 than in groups 2 and 3 (P=0.009, P=0.001). Significantly more patients in group 1 required additional postoperative analgesia (paracetamol 15 mg x kg(-1)) compared with groups 2 and 3 (P < 0.001). CONCLUSIONS Caudal administration of ketamine 0.5 mg.kg-1 with or without alfentanil in children produced satisfactory postoperative analgesia without respiratory depression or other side-effects.
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Affiliation(s)
- Hayri Ozbek
- Department of Anesthesiology, Cukurova University Faculty of Medicine, Adana, Turkey.
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Dextromethorphan Reduces Immediate and Late Postoperative Analgesic Requirements and Improves Patients’ Subjective Scorings After Epidural Lidocaine and General Anesthesia. Anesth Analg 2002. [DOI: 10.1213/00000539-200206000-00032] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Weinbroum AA. Dextromethorphan reduces immediate and late postoperative analgesic requirements and improves patients' subjective scorings after epidural lidocaine and general anesthesia. Anesth Analg 2002; 94:1547-52. [PMID: 12032024 DOI: 10.1097/00000539-200206000-00032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Central N-methyl-D-aspartate receptors modulate postoperative pain. We compared the effects of preincision oral dextromethorphan (DM), an N-methyl-D-aspartate receptor antagonist, on postoperative IV patient-controlled analgesia morphine demand and on subjective variables in 80 patients undergoing lower-body procedures who were randomly assigned to epidural lidocaine (LA; 16 mL, 1.6%) or general anesthesia (GA). The patients were premedicated 90 min before surgery with placebo or DM 90 mg (20 patients per group) in a double-blinded manner. Postoperative IV patient-controlled analgesia morphine administration started when subjective pain intensity was > or =4 of 10 (visual analog scale) and lasted 2 h. Observation continued up to 3 days, during which patients could use diclofenac. LA-DM and GA-DM patients required 45%-50% less morphine and diclofenac compared with their placebo counterparts (P < 0.001). However, GA-DM patients made twice as many attempts to self-administer morphine as LA-DM patients (P = 0.005). Eight LA-DM versus two GA-DM patients (P < 0.01) used no morphine or diclofenac. All DM patients experienced significantly (P < 0.001) less pain, were less sedated, and felt better than their placebo counterparts; however, compared with placebo, DM improved subjective scorings in the GA patients more significantly (P < 0.05) than in the LA patients. We conclude that oral DM 90 mg in patients undergoing surgery under LA or GA reduces morphine and diclofenac use by approximately 50% in the immediate and late postoperative period compared with placebo. Subjectively scored levels of pain, sedation, and well-being were better as well.
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MESH Headings
- Aged
- Analgesia, Patient-Controlled
- Analgesics, Opioid/administration & dosage
- Analgesics, Opioid/therapeutic use
- Anesthesia, Epidural
- Anesthesia, General
- Anesthetics, Local
- Anti-Inflammatory Agents, Non-Steroidal/administration & dosage
- Anti-Inflammatory Agents, Non-Steroidal/therapeutic use
- Arthroscopy
- Dextromethorphan/therapeutic use
- Diclofenac/administration & dosage
- Diclofenac/therapeutic use
- Double-Blind Method
- Female
- Hernia, Inguinal/surgery
- Humans
- Lidocaine
- Male
- Middle Aged
- Morphine/administration & dosage
- Morphine/therapeutic use
- Pain Measurement/drug effects
- Pain, Postoperative/drug therapy
- Patient Satisfaction
- Preanesthetic Medication
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Affiliation(s)
- Avi A Weinbroum
- Post-Anesthesia Care Unit, Tel Aviv Sourasky Medical Center, Tel Aviv University, Tel Aviv, Israel
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Subramaniam B, Subramaniam K, Pawar DK, Sennaraj B. Preoperative epidural ketamine in combination with morphine does not have a clinically relevant intra- and postoperative opioid-sparing effect. Anesth Analg 2001; 93:1321-6. [PMID: 11682423 DOI: 10.1097/00000539-200111000-00059] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
UNLABELLED In this prospective, randomized, and double-blinded clinical trial, we evaluated the efficacy of preincisional administration of epidural ketamine with morphine compared with epidural morphine alone for postoperative pain relief after major upper-abdominal surgery. We studied 50 ASA I and II patients undergoing major upper-abdominal procedures. These patients were randomly allocated to one of the two treatment groups: patients in Group 1 received epidural morphine 50 microg/kg, whereas those in Group 2 received epidural ketamine 1 mg/kg combined with 50 microg/kg of morphine 30 min before incision. Intraoperative analgesia was provided in addition, with IV morphine, and the requirement was noted. A blinded observer using a visual analog scale for pain assessment observed patients for 48 h after surgery. Additional doses of epidural morphine were provided when the visual analog scale score was more than 4. Analgesic requirements and side effects were compared between the two groups. There were no differences between the two groups with respect to age, sex, weight, or duration or type of the surgical procedures. The intraoperative morphine requirement was significantly (P = 0.018) less in Group 2 patients (median, 6.8 mg; range, 3-15 mg) compared with patients in Group 1 (median, 8.3 mg; range, 4.5-15 mg). The time for the first requirement of analgesia was significantly (P = 0.021) longer (median, 17 h; range, 10-48 h) in Group 2 patients than in Group 1 (median, 12 h; range, 4-36 h). The total number of supplemental doses of epidural morphine required in the first 48 h after surgery was comparable (P = 0.1977) in both groups. Sedation scores were similar in both groups. One patient in Group 2 developed hallucinations after study drug administration. None of the patients in either group developed respiratory depression. Other side effects, such as pruritus, nausea, and vomiting, were also similar in both groups. Although the addition of ketamine had synergistic analgesic effects with morphine (reduced intraoperative morphine consumption and prolonged time for first requirement of analgesia), there was no long- lasting preemptive benefit seen with this combination (in terms of reduction in supplemental analgesia) for patients undergoing major upper-abdominal procedures. IMPLICATIONS Ketamine added to epidural morphine given before surgery can decrease postoperative pain by its preemptive effect, opioid potentiation, and prevention of acute opioid tolerance. A single epidural bolus of 1 mg/kg of ketamine with morphine given before major upper-abdominal surgery did not result in a clinically relevant reduction in postoperative pain relief.
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Affiliation(s)
- B Subramaniam
- Department of Anesthesiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts 021115, USA.
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De Kock M, Lavand'homme P, Waterloos H. 'Balanced analgesia' in the perioperative period: is there a place for ketamine? Pain 2001; 92:373-380. [PMID: 11376910 DOI: 10.1016/s0304-3959(01)00278-0] [Citation(s) in RCA: 290] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We investigated whether intraoperative 'subanesthetic doses' of ketamine have a postoperative anti-hyperalgesic and an analgesic effect and which is the preferential route of administration, either systemic (intravenous, i.v.) or epidural. One hundred patients scheduled for rectal adenocarcinoma surgery under combined epidural/general anesthesia were included. Before skin incision all the patients received an epidural bolus followed by an infusion of continuous bupivacaine/sufentanil/clonidine mixture. They were randomly assigned to receive no ketamine (group 1), i.v. ketamine at the bolus dose of 0.25 mg/kg followed by an infusion of 0.125 mg/kg per h (group 2), 0.5 mg/kg and 0.25 mg/kg per h (group 3), epidural ketamine 0.25 mg/kg and 0.125 mg/kg per h (group 4), or 0.5 mg/kg and 0.25 mg/kg per h (group 5). All i.v. and epidural analgesics were stopped at the end of surgery and patients were connected to an i.v. morphine patient-controlled analgesia (PCA) device. Short-term postoperative analgesia (72 h) was assessed by pain visual analog scale scores at rest, cough, and movements as well as by PCA requirements. Wound mechanical hyperalgesia was evaluated and residual pain was assessed by asking the patients at 2 weeks, and 1, 6, and 12 months. The area of hyperalgesia and morphine PCA requirements were significantly reduced in group 3. These patients reported significantly less residual pain until the sixth postoperative month. These observations support the theory that subanesthetic doses of i.v. ketamine (0.5 mg/kg bolus followed by 0.25 mg/kg per h) given during anesthesia reduce wound hyperalgesia and are a useful adjuvant in perioperative balanced analgesia. Moreover, they show that the systemic route clearly is the preferential route.
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Affiliation(s)
- Marc De Kock
- Department of Anesthesiology, University of Louvain, St. Luc Hospital, Avenue Hippocrate 10-1821, 1200 Brussels, Belgium
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Subramaniam K, Subramaniam B, Pawar DK, Kumar L. Evaluation of the safety and efficacy of epidural ketamine combined with morphine for postoperative analgesia after major upper abdominal surgery. J Clin Anesth 2001; 13:339-44. [PMID: 11498314 DOI: 10.1016/s0952-8180(01)00278-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
STUDY OBJECTIVE To evaluate the efficacy of the combination of epidural ketamine and morphine compared with epidural morphine alone for postoperative pain relief following major upper abdominal surgery. STUDY DESIGN Prospective, randomized, double-blinded study. SETTING Tertiary care referral and teaching hospital. PATIENTS 46 ASA physical status I and II patients who underwent major upper abdominal procedures. INTERVENTIONS Patients were randomly allocated to one of the two treatment groups: patients in Group 1 received epidural morphine 50 microg/kg whereas patients in Group 2 received epidural ketamine 1 mg/kg combined with 50 microg/kg of morphine postoperatively. MEASUREMENTS A blinded observer using a visual analog scale (VAS) for pain assessment followed up patients for 48 hours postoperatively. Top-up dose of epidural morphine was provided when VAS was higher than 4. Analgesic requirements and side effects were compared between the two groups. RESULTS Only 40 patients completed the study. There were no differences between the two groups with respect to age, gender, weight, duration, or type of surgical procedure or intraoperative opioid requirements. Onset of analgesia was faster (p < 0.001) in Group 2 (11 min) than in Group 1 patients (25 min). The time for first requirement of analgesia was significantly (p < 0.01) longer (19.8 +/- 9.8 hours) in Group 2 patients than Group 1 (12.8 +/- 6.2 hours). Total number of supplemental doses of epidural morphine required in the first 48 hours postoperatively was also significantly less (p < 0.005) in Group 2 compared to Group 1. Patients in Group 2 had higher sedation scores than Group I patients for the first 2 hours postoperatively. None of the patients in either group developed hallucinations or respiratory depression. Other side effects such as pruritus, nausea, and vomiting were also similar in both groups. CONCLUSIONS The addition of epidural ketamine 1 mg/kg to morphine 50 microg/kg improved analgesia after major upper abdominal surgery without increasing side effects.
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Affiliation(s)
- K Subramaniam
- Department of Anesthesiology, All India Institute of Medical Sciences, New Delhi, India.
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Weinbroum AA, Lalayev G, Yashar T, Ben-Abraham R, Niv D, Flaishon R. Combined pre-incisional oral dextromethorphan and epidural lidocaine for postoperative pain reduction and morphine sparing: a randomised double-blind study on day-surgery patients. Anaesthesia 2001; 56:616-22. [PMID: 11437760 DOI: 10.1046/j.1365-2044.2001.02088.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The reduction in acute pain perception following dextromethorphan has previously been investigated in patients undergoing general anaesthesia. This random and double-blind study examined the effects of pre-incisional oral dextromethorphan on postoperative pain and intravenous patient-controlled morphine demand in 60 day-surgery patients undergoing lower body surgery under lidocaine (1.6%-16 ml) epidural anaesthesia after receiving placebo, 60 or 90 mg dextromethorphan, 90 min pre-operatively. Postoperative pain was scored on a visual analogue scale from 1 to 10. In-hospital observation continued for 6 h and for 3 days at home; diclofenac was available throughout. Dextromethorphan-treated patients reported significantly (p < 0.05) less pain and sedation, and felt better. Patients who received dextromethorphan 90 mg had significantly (p < 0.05) lower heart and respiratory rates than those who received 60 mg. Medicated patients required half the morphine and diclofenac of placebo patients: 38% of patients who received 90 mg and 21% who received dextromethorphan 60 mg used no morphine or diclofenac whatsoever, a previously unreported finding.
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Affiliation(s)
- A A Weinbroum
- Department of Anaesthesiology and Critical Care Medicine, Post-Anaesthesia Care Unit, and Pain Clinic, Tel Aviv Sourasky Medical Centre, 6 Weizman Street, Tel Aviv 64239, Israel.
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Himmelseher S, Ziegler-Pithamitsis D, Argiriadou H, Martin J, Jelen-Esselborn S, Kochs E. Small-dose S(+)-ketamine reduces postoperative pain when applied with ropivacaine in epidural anesthesia for total knee arthroplasty. Anesth Analg 2001; 92:1290-5. [PMID: 11323364 DOI: 10.1097/00000539-200105000-00040] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
UNLABELLED Reduction of nociceptive input through blockade of N-methyl-D-aspartate (NMDA) receptors has been reported. We compared the effects of epidural S(+)-ketamine versus placebo on postoperative pain in a randomized, double-blinded study in 37 patients undergoing unilateral knee arthroplasty. After lumbar epidural anesthesia with ropivacaine (10 mg/mL, 10-20 mL), 19 patients received 0.9% epidural saline, and 18 patients received 0.25 mg/kg epidural S(+)-ketamine 10 min before surgical incision. After surgery, patient-controlled epidural analgesia with ropivacaine was provided. During the first 8 h after surgery, visual analog scale pain rating was similar between groups. Twenty-four and 48 h after surgery, patients anesthetized with ropivacaine had higher visual analog scale ratings at rest and during movement (P < 0.05) than patients anesthetized with S(+)-ketamine and ropivacaine. Forty-eight hours after surgery, patients anesthetized with ropivacaine also consumed more ropivacaine (558 +/- 210 mg) (P < 0.01) than those anesthetized with S(+)-ketamine and ropivacaine (319 +/- 204 mg). Adverse events were similar between groups. Patients who received S(+)-ketamine and ropivacaine rated the quality of their pain therapy better than those who received ropivacaine alone (P < 0.05). We conclude that the combination of S(+)-ketamine and ropivacaine in epidural anesthesia increases postoperative pain relief when compared with ropivacaine. IMPLICATIONS Epidural S(+)-ketamine applied with ropivacaine before surgery is a rational approach to decrease injury-induced pain sensitization. Epidural blockade with an N-methyl-D-aspartate receptor antagonist and a local anesthetic may provide better analgesia in the postoperative period than a local anesthetic alone.
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Affiliation(s)
- S Himmelseher
- Klinik für Anaesthesiologie, Technische Universität München, Ismaningerstr. 22, D-81675 München, Germany.
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Abstract
An overview of the spinal administration of ketamine is presented. Ketamine acts as a noncompetitive antagonist of the NMDA receptor Ca(++ channel pore. This effect provides interesting possibilities in pain therapy. However, there are still contrasting results that seem to be due to a lack of comparative controlled studies. The presence of systemic and neurotoxic effects presently limits clinical use).
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Kathirvel S, Sadhasivam S, Saxena A, Kannan TR, Ganjoo P. Effects of intrathecal ketamine added to bupivacaine for spinal anaesthesia. Anaesthesia 2000; 55:899-904. [PMID: 10947756 DOI: 10.1046/j.1365-2044.2000.01472.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We prospectively studied 30 healthy female patients undergoing intracavitory brachytherapy applicator insertion for carcinoma of the cervix under spinal anaesthesia. Patients were randomly allocated to receive either intrathecal bupivacaine 10 mg alone or bupivacaine 7.5 mg combined with preservative-free ketamine 25 mg. Spinal block onset, maximum sensory level, duration of blockade, haemodynamic variables, postoperative analgesic requirements and adverse events were recorded. Onset of sensory and motor block and duration of spinal analgesia were comparable between groups. Duration of motor blockade was shorter (p = 0.0416) and requirement for intravenous fluids in the peri-operative period was less (p = 0.0159) in the ketamine group. Significantly more patients in the ketamine group had adverse events, such as sedation, dizziness, nystagmus, 'strange feelings' and postoperative nausea and vomiting. Although the addition of ketamine to spinal bupivacaine had local anaesthetic sparing effects, it did not provide extended postoperative analgesia or decrease the postoperative analgesic requirements. Moreover, the central adverse effects of ketamine limit its spinal application.
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Affiliation(s)
- S Kathirvel
- Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Crews JC. New developments in epidural anesthesia and analgesia. ANESTHESIOLOGY CLINICS OF NORTH AMERICA 2000; 18:251-66. [PMID: 10935010 DOI: 10.1016/s0889-8537(05)70163-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Several recent advances in epidural anesthesia and analgesia have been reviewed. Perhaps the most exciting area of anticipated future developments relates to the continued development of novel analgesic agents and new epidural delivery systems. There appears to be some movement toward an increased use of intrathecal or peripheral neural blockade techniques for some clinical situations where epidural anesthesia and analgesia have been previously used; however, the ability to provide anesthesia and analgesia to relatively large areas of the body with a single injection or continuous catheter technique without the associated risks of dural puncture and intrathecal catheter placement will continue to assure epidural anesthesia and analgesia techniques a prominent role in anesthesia and pain management.
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Affiliation(s)
- J C Crews
- Pain Control Center, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.
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Liu ST, Wu CT, Yeh CC, Ho ST, Wong CS, Jao SW, Wu CC, Kang JC. Premedication with dextromethorphan provides posthemorrhoidectomy pain relief. Dis Colon Rectum 2000; 43:507-10. [PMID: 10789747 DOI: 10.1007/bf02237195] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
PURPOSE Previous studies have shown that N-methyl-D-aspartate receptor antagonists provide a preemptive analgesic effect in humans. This study was designed to examine whether premedication with dextromethorphan, an N-methyl-D-aspartate antagonist, also provided a preemptive analgesic effect that improved postoperative pain management. METHODS Sixty patients who were American Society of Anesthesiologists status I and II scheduled for hemorrhoidectomy (modified Whitehead procedure) were included in the study. Patients were randomly assigned to the control and study groups. For the control group patients received chlorpheniramine maleate (20 mg), a component of the injection form of dextromethorphan, intramuscular injection 30 minutes before skin incision. In the study group dextromethorphan 40 mg containing 20 mg chlorpheniramine maleate (intramuscular) was given as premedication 30 minutes before skin incision. Pethidine (1 mg/kg, intramuscular) was given for pain relief as required postoperatively. The time to first pethidine injection, total pethidine consumption, worst pain score, and pethidine-related side effects were recorded for 48 hours postoperatively. RESULTS The times to first pethidine injection (mean +/- standard error of the mean) were 5.2 +/- 3 and 19.6 +/- 6 hours in the control and study groups, respectively. Total pethidine consumption was 140 +/- 11.3 and 63.5 +/- 11.8 mg in the control and study groups. The worst visual analog scale pain scores were 7.4 +/- 0.2 and 5.6 +/- 0.3 in the control and study groups during the two-day observation. The numbers of patients who required pethidine injection were 29 and 20 in the control and study groups, respectively. Two patients suffered pethidine-related side effects, such as nausea, vomiting, dizziness, and headache, in the control group, and no patient complained of any side effect in the study group. CONCLUSION We found that dextromethorphan premedication provided a preemptive analgesic effect, thus producing reduced postoperative pain and pethidine requirement and improved recovery from hemorrhoidectomy.
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Affiliation(s)
- S T Liu
- Section of Anesthesia, Armed Forces Sung-Shang Hospital, Taipei, Taiwan, Republic of China
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Wu CT, Yeh CC, Yu JC, Lee MM, Tao PL, Ho ST, Wong CS. Pre-incisional epidural ketamine, morphine and bupivacaine combined with epidural and general anaesthesia provides pre-emptive analgesia for upper abdominal surgery. Acta Anaesthesiol Scand 2000; 44:63-8. [PMID: 10669274 DOI: 10.1034/j.1399-6576.2000.440112.x] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Previous studies have shown that N-methyl-D-asparate (NMDA) receptor antagonists provide a pre-emptive analgesic effect in humans. This study investigated the benefits of pre-emptive analgesia for upper abdominal surgery, using pre-incisional epidural ketamine + morphine + bupivacaine (K+M+B) treatment for achieving postoperative pain relief. METHODS Sixty ASA 1-2 patients scheduled for upper abdominal surgery were allocated to three groups in a randomized, single-blinded study. Patients in the control group (I) received general anaesthesia followed by an infusion of normal saline. Group II and III patients received general anaesthesia with a continuous epidural infusion of 2% lidocaine. Thirty minutes after the incision in groups I and II, an epidural pain control regimen was administered using ketamine (10 mg) and morphine (1 mg) in 10 ml of 0.085% bupivacaine (K+M+B). Group III patients also received K+M+B, but it was administered 10 min after the 2% lidocaine injection and 30 min before skin incision. All patients received an epidural pain control regimen (q12 h) for 3 days after their first injection. Patient-controlled analgesia (PCA) with morphine was used to control subsequent postoperative pain. During the 3-day period following surgery, duration to PCA trigger (h), morphine consumption (mg), pain intensity at rest and when coughing/moving, and analgesic-related adverse effects were recorded. The VAS scale (0-10) was used to assess pain intensity. RESULTS Median times to first PCA trigger were 1.2 (0.5-2.0) h, 3.0 (0.7-4.2) h, and 4.0 (2.5-7.5) h for groups I, II, and III, respectively. Both the incident and resting pain scores were consistently lower for group III patients than groups I and II. The number of PCA triggers (all attempts/successful triggers) during the day following surgery were 14.0 (3-30)/8.0 (3-24) times, 10.0 (3-23)/6.0 (2-20) times, and 7.0 (3-12)/4.5 (1-10) times for groups I, II, and III. Total morphine consumption for the 3-day observation period was 12.5 (3-42) mg, 10.5 (2-29) mg, and 6.0 (1-20) for groups I, II, and III, respectively. CONCLUSION Pre-incisional epidural K+M+B treatment combined with continuous epidural anaesthesia and general anaesthesia provides an ideal pre-emptive analgesic therapy, exhibiting better postoperative pain relief than general anaesthesia and post-incisional K+M+B treatment.
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Affiliation(s)
- C T Wu
- Department of Anesthesiology, Tri-Service General Hospital, Taipei, Taiwan, Republic of China
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47
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48
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Wong CS, Wu CT, Yu JC, Yeh CC, Lee MM, Tao PL. Preincisional dextromethorphan decreases postoperative pain and opioid requirement after modified radical mastectomy. Can J Anaesth 1999; 46:1122-6. [PMID: 10608204 DOI: 10.1007/bf03015519] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
PURPOSE To examine whether preincisional dextromethorphan (DM) improved analgesia after modified radical mastectomy (MRM). METHODS Sixty patients (ASA I-II) scheduled for MRM were included and randomly allocated into two groups. Patients in the treatment group (DM) received 40 mg DM and 20 mg chlorpheniramine maleate (CPM) i.m., and those in the control group received 20 mg CPM i.m. alone 30 min before skin incision. Meperidine, 1 mg x kg(-1) i.m., was given for postoperative pain relief as required. The time to first meperidine injection, total meperidine consumption, worst pain score, bed-rest time, and side effects were recorded every 24 hr for 48 hr after surgery by a resident anesthesiologist on a double-blind basis. RESULTS A longer time to first meperidine injection (19.2 +/- 1.6 vs 1.5 +/- 0.23 hr, P < 0.001) and lower meperidine consumption (0[10] vs 75[50] mg, median [interquartile range], P < 0.001) were observed in the DM group than in the control group. The bed-rest time was shorter in the DM than in the control group (18.0[4] vs 23.0[19] hr, P < 0.001). No difference was noted in worst VAS pain score. Meperidine-related side effects (nausea, vomiting, pruritus, dizziness, headache) were more frequent in the control (10/30) than in the DM group (3/30, P < 0.05). The number of patients who required meperidine injection for pain relief was lower in the DM (7/30) than in the control group (25/30, P < 0.005). No DM- or CPM-associated side effects were observed. CONCLUSION Preincisional IM. DM treatment decreased postoperative pain and opioid requirement after MRM surgery.
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Affiliation(s)
- C S Wong
- Department of Anesthesiology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
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Schmid RL, Sandler AN, Katz J. Use and efficacy of low-dose ketamine in the management of acute postoperative pain: a review of current techniques and outcomes. Pain 1999; 82:111-125. [PMID: 10467917 DOI: 10.1016/s0304-3959(99)00044-5] [Citation(s) in RCA: 323] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Ketamine hydrochloride is a well known general anesthetic and short acting analgesic in use for almost 3 decades. The role of the NMDA receptor in the processing of nociceptive input has led naturally to renewed clinical interest in N-methyl-D-aspartate (NMDA) receptor antagonists such as ketamine. This paper reviews the use and efficacy of low-dose ketamine in the management of acute postoperative pain. The literature was obtained from a computer search of the MEDLINE database from 1966 through December 1998. Studies were included for review if they were randomized, prospective, controlled, double-blind and reported pain scores. We evaluate the clinical literature and discuss the efficacy of low-dose ketamine in the management of acute postoperative pain when administered alone or in conjunction with other agents via the oral, intramuscular, subcutaneous, intravenous and intraspinal routes. Low-dose ketamine is defined as a bolus dose of less than 2 mg/g when given intramuscularly or less than 1 mg/kg when administered via the intravenous or epidural route. For continuous i.v. administration low-dose ketamine is defined as a rate of < or =20 microg/kg per min. We conclude that ketamine may provide clinicians with a tool to improve postoperative pain management and to reduce opioid related adverse effects. The evidence suggests that low-dose ketamine may play an important role in postoperative pain management when used as an adjunct to local anesthetics, opioids, or other analgesic agents. Further research is required in the following areas: (a) dose-finding studies for ketamine as an adjunct to opioids and local anesthetics (b) efficacy and optimal route of administration (c) the role of S(+)-ketamine; (d) the influence of ketamine on long-term outcome such as chronic pain (e) long-term physical and chemical stability of mixtures containing ketamine (f) spinal toxicity of ketamine and (g) effects of low-dose ketamine on cognitive and memory functioning after surgery.
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Affiliation(s)
- Roger L Schmid
- Acute Pain Research Unit, Department of Anaesthesia, The Toronto Hospital and Mount Sinai Hospital, Toronto, Ontario, Canada Department of Anaesthesia, University of Toronto, Toronto, Ontario, Canada Department of Public Health Sciences, University of Toronto, Toronto, Ontario, Canada
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Abstract
Laboratory data, economic pressures, and the wish for humane treatment have been some of the driving forces behind improvements in paediatric pain management. Within the space of 10 years, there have been dramatic changes in the quality of treatment received by children undergoing surgical operations. Moreover, those receiving medical treatment, for example, sickle cell disease, have also benefited from increased experience in pain management. Children receiving care in specialised centres can now expect to benefit from up-to-date techniques of pain management, such as patient-controlled analgesia, nurse-controlled analgesia, and epidural infusions. They will be managed by ward nurses experienced and trained in paediatric pain relief, they will be attended by nurses whose special interest and training is the management of children's pain, and they will be provided with the techniques of analgesia by competent, trained anaesthetic staff. Improved care, with close attention to pain relief, is not only humane, but improves the patient turnaround by enhancing rapid discharge. Further education is required to spread these benefits to children being managed outside highly specialised centres. Not only education, but investment, is needed also to ensure that all children receive a standard of care second to none.
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Affiliation(s)
- A R Lloyd-Thomas
- Department of Anaesthesia, Great Ormond Street Hospital for Children NHS Trust, London, UK.
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