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Harden RN, McCabe CS, Goebel A, Massey M, Suvar T, Grieve S, Bruehl S. Complex Regional Pain Syndrome: Practical Diagnostic and Treatment Guidelines, 5th Edition. PAIN MEDICINE (MALDEN, MASS.) 2022; 23:S1-S53. [PMID: 35687369 PMCID: PMC9186375 DOI: 10.1093/pm/pnac046] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 03/15/2022] [Indexed: 11/23/2022]
Abstract
There have been some modest recent advancements in the research of Complex Regional Pain Syndrome, yet the amount and quality of the work in this complicated multifactorial disease remains low (with some notable exceptions; e.g., the recent work on the dorsal root ganglion stimulation). The semi-systematic (though in some cases narrative) approach to review is necessary so that we might treat our patients while waiting for "better research." This semi-systematic review was conducted by experts in the field, (deliberately) some of whom are promising young researchers supplemented by the experience of "elder statesman" researchers, who all mention the system they have used to examine the literature. What we found is generally low- to medium-quality research with small numbers of subjects; however, there are some recent exceptions to this. The primary reason for this paucity of research is the fact that this is a rare disease, and it is very difficult to acquire a sufficient sample size for statistical significance using traditional statistical approaches. Several larger trials have failed, probably due to using the broad general diagnostic criteria (the "Budapest" criteria) in a multifactorial/multi-mechanism disease. Responsive subsets can often be identified in these larger trials, but not sufficient to achieve statistically significant results in the general diagnostic grouping. This being the case the authors have necessarily included data from less compelling protocols, including trials such as case series and even in some instances case reports/empirical information. In the humanitarian spirit of treating our often desperate patients with this rare syndrome, without great evidence, we must take what data we can find (as in this work) and tailor a treatment regime for each patient.
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Affiliation(s)
- R Norman Harden
- Departments of PM&R and Physical Therapy and Human Movement Sciences, Northwestern University
| | - Candida S McCabe
- University of the West of England, Stapleton, Bristol, UK
- Dorothy House Hospice, Bradford-on-Avon, Wilts, UK
| | - Andreas Goebel
- Pain Research Institute, Faculty of Health and Life Science, University of Liverpool, Liverpool, UK
| | - Michael Massey
- CentraCare Neurosciences Pain Center, CentraCare, St. Cloud, Minnesota, USA
| | - Tolga Suvar
- Department of Anesthesiology and Pain Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Sharon Grieve
- Royal United Hospitals Bath NHS Foundation Trust, Bath, UK
| | - Stephen Bruehl
- Department of Anesthesiology, Vanderbilt University Medical Centers, Nashville, Tennessee, USA
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Pribish A, Wood N, Kalava A. A Review of Nonanesthetic Uses of Ketamine. Anesthesiol Res Pract 2020; 2020:5798285. [PMID: 32308676 PMCID: PMC7152956 DOI: 10.1155/2020/5798285] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 02/07/2020] [Accepted: 03/05/2020] [Indexed: 12/20/2022] Open
Abstract
Ketamine, a nonselective NMDA receptor antagonist, is used widely in medicine as an anesthetic agent. However, ketamine's mechanisms of action lead to widespread physiological effects, some of which are now coming to the forefront of research for the treatment of diverse medical disorders. This paper aims at reviewing recent data on key nonanesthetic uses of ketamine in the current literature. MEDLINE, CINAHL, and Google Scholar databases were queried to find articles related to ketamine in the treatment of depression, pain syndromes including acute pain, chronic pain, and headache, neurologic applications including neuroprotection and seizures, and alcohol and substance use disorders. It can be concluded that ketamine has a potential role in the treatment of all of these conditions. However, research in this area is still in its early stages, and larger studies are required to evaluate ketamine's efficacy for nonanesthetic purposes in the general population.
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Affiliation(s)
- Abby Pribish
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Nicole Wood
- Department of Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Arun Kalava
- Department of Anesthesiology, University of Central Florida College of Medicine, Orlando, FL, USA
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Xu J, Herndon C, Anderson S, Getson P, Foorsov V, Harbut RE, Moskovitz P, Harden RN. Intravenous Ketamine Infusion for Complex Regional Pain Syndrome: Survey, Consensus, and a Reference Protocol. PAIN MEDICINE 2020. [PMID: 29534218 DOI: 10.1093/pm/pny024] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To find and reach a consensus on the usage of ketamine in the treatment of complex regional pain syndrome and to determine a reference protocol for future studies. DESIGN Three hundred fifty-one medical professionals participated in our survey on practice procedures, with 104 respondents providing information on their usage of ketamine for treating the pain associated with complex regional pain syndrome. Respondents answered questions about inpatient treatment, outpatient treatment, children vs adults, safety, and basic demographic information. An expert group then met to reach a consensus for a reference protocol. RESULTS There is a difference in how inpatients are treated compared with outpatients, making it necessary to have two different reference protocols. The duration of pain relief varied from one to 10 days to one to six months, with a correlation between the duration of pain relief and total infusion hours per round. CONCLUSIONS The consensus reference protocols are made up of nine recommended topics. Reference protocols need to be validated by extensive research before guidelines can be created.
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Affiliation(s)
- Jijun Xu
- Department of Pain Management, Anesthesiology Institute.,Department of Immunology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Christopher Herndon
- School of Pharmacy, Southern Illinois University Edwardsville.,School of Medicine, St. Louis University, St. Louis, Missouri
| | - Samantha Anderson
- Department of Orthopaedic Surgery and Neurological Surgery, George Washington University. Washington, DC; Reflex Sympathetic Dystrophy Syndrome Association, Milford, Connecticut
| | - Philip Getson
- Department of Neurology, Drexel University, Philadelphia, Pennsylvania; **Infusion Centers of America, Little Rock, Arkansas
| | - Victor Foorsov
- Department of Pain Management, Anesthesiology Institute.,George Washington University, Washington, DC
| | | | - Peter Moskovitz
- Department of Orthopaedic Surgery and Neurological Surgery, George Washington University. Washington, DC; Reflex Sympathetic Dystrophy Syndrome Association, Milford, Connecticut
| | - R Norm Harden
- Departments of ††Physical Medicine and Rehabilitation.,Physical Therapy and Movement Sciences, Northwestern University, Chicago, Illinois, USA
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Greenwald JD, Shafritz KM. An Integrative Neuroscience Framework for the Treatment of Chronic Pain: From Cellular Alterations to Behavior. Front Integr Neurosci 2018; 12:18. [PMID: 29875641 PMCID: PMC5974053 DOI: 10.3389/fnint.2018.00018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 05/04/2018] [Indexed: 12/21/2022] Open
Abstract
Chronic pain can result from many pain syndromes including complex regional pain syndrome (CRPS), phantom limb pain and chronic low back pain, among others. On a molecular level, chronic pain syndromes arise from hypersensitization within the dorsal horn of the spinal cord, a process known as central sensitization. Central sensitization involves an upregulation of ionotropic and metabotropic glutamate receptors (mGluRs) similar to that of long-term potentiation (LTP). Regions of the brain in which LTP occurs, such as the amygdala and hippocampus, are implicated in fear- and memory-related brain circuity. Chronic pain dramatically influences patient quality of life. Individuals with chronic pain may develop pain-related anxiety and pain-related fear. The syndrome also alters functional connectivity in the default-mode network (DMN) and salience network. On a cellular/molecular level, central sensitization may be reversed through degradative glutamate receptor pathways. This, however, rarely happens. Instead, cortical brain regions may serve in a top-down regulatory capacity for the maintenance or alleviation of pain. Specifically, the medial prefrontal cortex (mPFC), which plays a critical role in fear-related brain circuits, the DMN, and salience network may be the driving forces in this process. On a cellular level, the mPFC may form new neural circuits through LTP that may cause extinction of pre-existing pain pathways found within fear-related brain circuits, the DMN, and salience network. In order to promote new LTP connections between the mPFC and other key brain structures, such as the amygdala and insula, we propose a holistic rehabilitation program including cognitive behavioral therapy (CBT) and revolving around: (1) cognitive reappraisals; (2) mindfulness meditation; and (3) functional rehabilitation. Unlike current medical interventions focusing upon pain-relieving medications, we do not believe that chronic pain treatment should focus on reversing the effects of central sensitization. Instead, we propose here that it is critical to focus on non-invasive efforts to promote new neural circuits originating from the mPFC.
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Affiliation(s)
- Jess D. Greenwald
- Department of Psychology, Hofstra University, Hempstead, NY, United States
| | - Keith M. Shafritz
- Department of Psychology, Hofstra University, Hempstead, NY, United States
- Center for Psychiatric Neuroscience, The Feinstein Institute for Medical Research, Manhasset, NY, United States
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Affiliation(s)
- Aneesh P Goel
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Dermot P Maher
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Steven P Cohen
- Department of Anesthesiology & Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Kim M, Cho S, Lee JH. The Effects of Long-Term Ketamine Treatment on Cognitive Function in Complex Regional Pain Syndrome: A Preliminary Study. PAIN MEDICINE 2016; 17:1447-51. [PMID: 26921891 DOI: 10.1093/pm/pnv112] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This preliminary study aimed to investigate the effects of long-term frequent ketamine treatment on cognitive function in [AQ-A] CRPS patients. DESIGN A total of 30 CRPS patients were divided into two groups based on both the duration and frequency of ketamine treatment; the long-term frequent ketamine treatment (LF) group (N = 14) and the Non-LF group (N = 16). Participants were asked to complete a questionnaire packet including demographic and clinical characteristics and potential variables affecting cognitive function. Then, they performed the neuropsychological test. RESULTS Results indicated that the LF group performed significantly poorer than the Non-LF group on the digit span, digit symbol, Controlled Oral Word Association Test, and Trail Making Test, but not the Stroop task. CONCLUSIONS Patients with CRPS receiving long-term frequent ketamine treatment showed impairment in cognitive function (specifically executive function) compared with those who do not. These findings may have implications for clinical assessment and rehabilitation of cognitive function in CRPS patients.
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Affiliation(s)
- Minseung Kim
- *Department of Psychology, Chung-Ang University, Seoul, Korea
| | - Sungkun Cho
- Department of Psychology, Chungnam National University, Daejeon, Korea
| | - Jang-Han Lee
- Department of Psychology, Chungnam National University, Daejeon, Korea
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Bussa M, Guttilla D, Lucia M, Mascaro A, Rinaldi S. Complex regional pain syndrome type I: a comprehensive review. Acta Anaesthesiol Scand 2015; 59:685-97. [PMID: 25903457 DOI: 10.1111/aas.12489] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Revised: 11/25/2014] [Accepted: 01/06/2015] [Indexed: 12/27/2022]
Abstract
BACKGROUND Complex regional pain syndrome type I (CRPS I), formerly known as reflex sympathetic dystrophy (RSD), is a chronic painful disorder that usually develops after a minor injury to a limb. This topical review gives a synopsis of CRPS I and discusses the current concepts of our understanding of CRPS I in adults, the diagnosis, and treatment options based on the limited evidence found in medical literature. CRPS I is a multifactorial disorder. Possible pathophysiological mechanisms of CRPS I are classic and neurogenic inflammation, and maladaptive neuroplasticity. At the level of the central nervous system, it has been suggested that an increased input from peripheral nociceptors alters the central processing mechanisms. METHODS A literature search was conducted using, as electronic bibliographic database, Medline from 1980 until 2014. RESULTS An early diagnosis and multidisciplinary treatment are necessary to prevent permanent disability. CONCLUSIONS The pharmacological treatment of CRPS I is empirical and insufficiently effective. Further research is needed regarding the therapeutic modalities discussed in the guidelines. Physical therapy is widely recommended as a first-line treatment. The efficacy of local anesthetic sympathetic blockade as treatment for CRPS I is questionable.
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Affiliation(s)
- M. Bussa
- O.U. of Anesthesia, Intensive Care and Pain Therapy of Sant'Antonio Abate Hospital; Casa Santa Erice Trapani Italy
| | - D. Guttilla
- O.U. of Anesthesia, Intensive Care and Pain Therapy of Sant'Antonio Abate Hospital; Casa Santa Erice Trapani Italy
| | - M. Lucia
- O.U. of Anesthesia, Intensive Care and Pain Therapy of Azienda Ospedaliera Ospedali Riuniti Villa Sofia Cervello; Palermo Italy
| | - A. Mascaro
- Anaesthesiology, Intensive Care and Pain Therapy Department; Catholic University; Medical School; Rome Italy
| | - S. Rinaldi
- Plastic and Reconstructive Surgery Department; University ‘Sapienza’ of Rome; Rome Italy
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Rivkin A, Rivkin MA. Perioperative nonopioid agents for pain control in spinal surgery. Am J Health Syst Pharm 2015; 71:1845-57. [PMID: 25320134 DOI: 10.2146/ajhp130688] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
PURPOSE Commonly used nonopioid analgesic agents that are incorporated into multimodal perioperative pain management protocols in spinal surgery are reviewed. SUMMARY Spinal procedures constitute perhaps some of most painful surgical interventions, as they often encompass extensive muscle dissection, tissue retraction, and surgical implants, as well as prolonged operative duration. Perioperative nonopioid analgesics frequently used in multimodal protocols include gabapentin, pregabalin, acetaminophen, dexamethasone, ketamine, and nonsteroidal antiinflammatory drugs (NSAIDs). There is evidence to suggest that gabapentin is safe and effective in reducing opioid consumption and pain scores at optimal doses of 600-900 mg orally administered preoperatively. Pregabalin 150-300 mg orally perioperatively has been shown to reduce both pain and narcotic consumption. Most reports concur that a single 1-g i.v. perioperative dose is safe in adults and that this dose has been shown to reduce pain and attenuate narcotic requirements. Dexamethasone's influence on postoperative pain has primarily been investigated for minor spinal procedures, with limited evidence for spinal fusions. Ketamine added to a patient-controlled analgesia regimen appears to be efficacious for 24 hours postoperatively when implemented for microdiskectomy and laminectomy procedures at doses of 1 mg/mL in a 1:1 mixture with morphine. For patients undergoing laminectomy or diskectomy, NSAIDs appear to be safe and effective in reducing pain scores and decreasing opioid consumption. CONCLUSION Preemptive analgesic therapy combining nonopioid agents with opioids may reduce narcotic consumption and improve patient satisfaction after spinal surgery. Such therapy should be considered for patients undergoing various spinal procedures in which postoperative pain control has been historically difficult to achieve.
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Affiliation(s)
- Anna Rivkin
- Anna Rivkin, Pharm.D., BCPS, is Assistant Professor of Pharmacy Practice, Philadelphia College of Pharmacy, University of the Sciences, Philadelphia, PA, and Clinical Pharmacist, Critical Care, Mercy Fitzgerald Hospital, Darby, PA. Mark A. Rivkin, D.O., M.Sc., is Chief Resident, Neurosurgery, Philadelphia College of Osteopathic Medicine, Bala Cynwyd, PA.
| | - Mark A Rivkin
- Anna Rivkin, Pharm.D., BCPS, is Assistant Professor of Pharmacy Practice, Philadelphia College of Pharmacy, University of the Sciences, Philadelphia, PA, and Clinical Pharmacist, Critical Care, Mercy Fitzgerald Hospital, Darby, PA. Mark A. Rivkin, D.O., M.Sc., is Chief Resident, Neurosurgery, Philadelphia College of Osteopathic Medicine, Bala Cynwyd, PA
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Connolly SB, Prager JP, Harden RN. A Systematic Review of Ketamine for Complex Regional Pain Syndrome. PAIN MEDICINE 2015; 16:943-69. [DOI: 10.1111/pme.12675] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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O’Brien SL, Pangarkar S, Prager J. The Use of Ketamine in Neuropathic Pain. CURRENT PHYSICAL MEDICINE AND REHABILITATION REPORTS 2014. [DOI: 10.1007/s40141-014-0045-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Malizia AL, Ferro A. Drugs for addiction: a therapeutic area in need of a 'shot in the arm'. Br J Clin Pharmacol 2014; 77:225-7. [PMID: 24450545 DOI: 10.1111/bcp.12316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Affiliation(s)
- Andrea L Malizia
- Clinical Psychopharmacology and Neurostimulation, Department of Neurosurgery, Frenchay hospital, North Bristol NHS Trust, Bristol, BS16 1LE, UK
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