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Ketamine chronic pain

Stephen R Humble, Nicolas Varela, Asantha Jayaweera, Arun Bhaskar
PURPOSE OF REVIEW: Chronic postsurgical pain (CPSP) is an important and well recognized cause of much long-term suffering, which in some cases may be preventable and affects many people living with cancer. Unfortunately, general consensus is lacking as to how best reduce the risk of developing CPSP. RECENT FINDINGS: Cancer is now not always a short-lived, fatal disease and is now moving towards a chronic illness. Poorly managed perioperative pain is the greatest risk factor for CPSP...
March 16, 2018: Current Opinion in Supportive and Palliative Care
Athir Morad, Salia Farrokh, Alexander Papangelou
PURPOSE OF REVIEW: Pain management in neurocritical care is a subject often avoided because of concerns over the side-effects of analgesics and the potential to cause additional neurological injury with treatment. The sedation and hypercapnia caused by opioids have been feared to mask the neurological examination and contribute to elevations in intracranial pressure. Nevertheless, increasing attention to patient satisfaction has sparked a resurgence in pain management. As opioids have remained at the core of analgesic therapy, the increasing attention to pain has contributed to a growing epidemic of opioid dependence...
April 2018: Current Opinion in Critical Care
Rikke Vibeke Nielsen
Increasing evidence indicate that pain is insufficiently treated following surgical procedures. It is essential that pain treatment is effective with a minimum of side effects in order to promote postoperative rehabilitation. Multimodal analgesia is most likely an important strategy in reducing postoperative pain. Combinations of different analgesics with different mechanisms of action may have an additive analgesic effect with fewer side effects compared to using a single drug. However, there is still a pronounced lack of documentation for the effect and side effects of these multimodal analgesic regimes...
March 2018: Danish Medical Journal
Allana Munro, Ana Sjaus, Ronald B George
PURPOSE OF REVIEW: High-quality analgesia has been linked to improved patient satisfaction as well as improved short-term and long-term postoperative outcomes. Acute surgical pain is a modifiable risk factor for development of chronic postoperative pain, which is reported by up to 26% of gynecologic surgical patients. In other surgical populations, multimodal analgesia has shown improved pain control and decreased reliance on opioids. This review examines recent evidence for various analgesic modalities applied specifically to the gynecologic surgical population...
February 22, 2018: Current Opinion in Anaesthesiology
Daniel J Pak, R Jason Yong, Alan David Kaye, Richard D Urman
PURPOSE OF REVIEW: The development of acute to chronic pain involves distinct pathophysiological changes in the peripheral and central nervous systems. This article reviews the mechanisms, etiologies, and management of chronic pain syndromes with updates from recent findings in the literature. RECENT FINDINGS: Chronic post-surgical pain (CPSP) is not limited to major surgeries and can develop after smaller procedures such as hernia repairs. While nerve injury has traditionally been thought to be the culprit for CPSP, it is evident that nerve-sparing surgical techniques are not completely preventative...
February 5, 2018: Current Pain and Headache Reports
Jianli Zhao, Yajing Wang, Dajie Wang
PURPOSE OF REVIEW: Complex regional pain syndrome (CRPS) is a painful debilitating neurological condition that accounts for approximately 1.2% of adult chronic pain population. Ketamine, an NMDA receptor antagonist, is an anesthetic agent that has been used by some pain specialists for CRPS. There is a growing body of clinical evidence to support the use of ketamine in the treatment of neuropathic pain, especially CRPS. This meta-analysis study was aimed to examine the efficacy of ketamine in the treatment of CRPS...
February 5, 2018: Current Pain and Headache Reports
Vinita Singh, Theresa W Gillespie, R Donald Harvey
Cancer-related pain continues to be a significant therapeutic challenge, made more difficult by contemporary opioid use and diversion concerns. Conventional treatment utilizing a tiered approach of non-steroidal anti-inflammatory drugs (NSAIDs), opioids, and adjuvant agents is limited; and alternatives are needed for patients with rapidly progressing pain and those who develop hyperalgesia and tolerance to opioids. Ketamine, an N-methyl-D-aspartate (NMDA) selective antagonist, has historically been used for anesthesia in adult and pediatric populations, but has also been investigated for depression, bipolar disorder, and general and post-operative pain management...
February 3, 2018: Pharmacotherapy
Frank Birklein, Violeta Dimova
Complex regional pain syndrome (CRPS) was described for the first time in the 19th century by Silas Weir Mitchell. After the exclusion of other causes, CRPS is characterised by a typical clinical constellation of pain, sensory, autonomic, motor, or trophic symptoms which can no longer be explained by the initial trauma. These symptoms spread distally and are not limited to innervation territories. If CRPS is not improved in the acute phase and becomes chronic, the visible symptoms change throughout because of the changing pathophysiology; the pain, however, remains...
November 2017: Pain Reports (Baltimore, Md.)
D Michelet, C Brasher, A-L Horlin, M Bellon, F Julien-Marsollier, T Vacher, S Pontone, S Dahmani
BACKGROUND: Ketamine has been suggested to be efficient in relieving chronic pain. However, there is inconsistency across studies investigating the effect of ketamine for chronic pain management. We aimed to perform a meta-analysis in order to assess the efficacy of this compound during chronic non-cancer pain conditions. METHODS: The study consisted in a meta-analysis of clinical trials comparing ketamine to a placebo during chronic non-cancer pain. The primary endpoint of this study was pain relief 4 weeks after the beginning of treatment...
November 26, 2017: European Journal of Pain: EJP
Nathan A Hewitt, Peter Cox
Complex regional pain syndrome is a chronic pain condition that may be resistant to many treatment modalities. Ketamine infusions have demonstrated some promising results, though their use may be associated with a number of adverse effects limiting their widespread applicability. Hepatotoxicity and cholangiopathy have been described in chronic ketamine abuse, though rarely in therapeutic use. We report the impact of recurrent short subanesthetic ketamine infusions for the treatment of complex regional pain syndrome resulting in biliary dilation, jaundice, and cholangitis...
November 9, 2017: A & A Case Reports
Daniel Bigman, Sindhura Kunaparaju, Bradford Bobrin
Ketamine is a standard anaesthetic drug that has been studied as a possible treatment for acute suicidal ideation. Aside to the potential psychotropic effects of ketamine, a Cochrane review reported that available studies suggest a modest effect of ketamine for chronic pain months to years after surgical intervention. We present a patient with acute suicidal ideation who required immediate inpatient psychiatric admission in the setting of concurrent chronic pain on cannabinoids which could not be prescribed within our inpatient hospital setting...
November 12, 2017: BMJ Case Reports
Knox H Todd
INTRODUCTION: Pain is the most common symptom prompting an emergency department visit and emergency physicians are responsible for managing both acute pain and acute exacerbations of chronic pain resulting from a broad range of illnesses and injuries. The responsibility to treat must be balanced by the duty to limit harm resulting from analgesics. In recent years, opioid-related adverse effects, including overdose and deaths, have increased dramatically in the USA. In response to the US opioid crisis, emergency physicians have broadened their analgesic armamentarium to include a variety of non-opioid approaches...
December 2017: Pain and Therapy
Nebojsa Nick Knezevic, Tatiana Tverdohleb, Farid Nikibin, Ivana Knezevic, Kenneth D Candido
The goal of our review was to emphasize important aspects that physicians should take into consideration when prescribing topical analgesics as part of chronic neuropathic pain treatment. We discuss the dermatopharmacokinetics and microstructural components of the skin, differences between topical and transdermal drug delivery, and topical medication effects on peripheral neuropathy and central sensitization. Even though the US FDA approved topical analgesics are 8%-capsaicin and 5%-lidocaine patches for treating postherpetic neuralgia, there are many other studies conducted on the efficacy of topical ketamine cream, clonidine gel, topical gabapentin, topical baclofen and topical phenytoin for peripheral neuropathic pain, either alone or in combination with other formulations...
November 2017: Pain Management
Jiwon Lee, Hee-Pyoung Park, Mu-Hui Jeong, Je-Do Son, Hyun-Chang Kim
Objective Although robotic thyroidectomy (RoT) is a minimally invasive surgery, percutaneous tunneling causes moderate to severe pain immediately postoperatively. We evaluated the efficacy of ketamine for postoperative pain management in patients following RoT. Methods Sixty-four patients scheduled for RoT were randomly divided into two groups. In the ketamine group (n = 32), ketamine was infused from induction of anaesthesia until the end of the procedure (0.15-mg/kg bolus with continuous infusion at 2 µg/kg/min)...
January 1, 2017: Journal of International Medical Research
Stephan A Schug, Philip Peyton
Identifying operations and individuals with an increased risk of chronic postsurgical pain (CPSP) has led to significant interest in interventions with the potential to achieve primary prevention of this condition. Pharmacological prevention remains controversial with a Cochrane review identifying perioperative ketamine administration as the only intervention with possible benefit although, with only small, heterogeneous studies, the authors called for a large randomised controlled trial (RCT) to confirm the validity of this result...
November 2017: British Journal of Pain
Elise M Strickler, Eric S Schwenk, Mitchell J Cohen, Eugene R Viscusi
Opioids are frequently used for the treatment of chronic pain, and patients taking high doses are at increased risk of complications and adverse opioid-related events. Ketamine is appealing as an opioid adjunct because of its lack of respiratory depression and potential prevention of hyperalgesia and central sensitization. We present a case in which a ketamine infusion was utilized over a 7-day period to provide rapid taper of a daily dose of 400 mg of morphine equivalents to less than one-third of that dose on discharge with unchanged pain levels and no symptoms of opioid withdrawal...
October 17, 2017: A & A Case Reports
Asokumar Buvanendran, Jeffrey S Kroin, Arvind Rajagopal, Sherry J Robison, Mario Moric, Kenneth J Tuman
Objective: Intravenous ketamine has been shown to provide postoperative analgesia in many clinical trials, in particular to reduce opioid consumption. The primary objective of this pilot study is to determine if multiple dosing over a three-day perioperative period with oral ketamine is a safe treatment method for acute pain after amputation surgery. Methods: Three consented subjects (age 57-60 years) undergoing elective amputation of the lower extremity were included in the study (Institutional Review Board and Food and Drug Administration Investigational New Drug approved)...
September 14, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
Jennifer Cogan, Geneviève Lalumière, Grisell Vargas-Schaffer, Alain Deschamps, Zeynep Yegin
BACKGROUND: Recent meta-analyses have concluded that low-dose intravenous ketamine infusions (LDKIs) during the postoperative period may help to decrease acute and chronic postoperative pain after major surgery. AIMS: This study aims to evaluate the level of pain at least 3 months after surgery for patients treated with a postoperative LDKI versus patients who were not treated with a postoperative LDKI. METHODS: Administrative and Ethics Board approval were obtained for this study...
October 2017: Annals of Cardiac Anaesthesia
Kelly Jonkman, Albert Dahan, Tine van de Donk, Leon Aarts, Marieke Niesters, Monique van Velzen
The efficacy of the N-methyl-D-aspartate receptor antagonist ketamine as an analgesic agent is still under debate, especially for indications such as chronic pain. To understand the efficacy of ketamine for relief of pain, we performed a literature search for relevant narrative and systematic reviews and meta-analyses. We retrieved 189 unique articles, of which 29 were deemed appropriate for use in this review. Ketamine treatment is most effective for relief of postoperative pain, causing reduced opioid consumption...
2017: F1000Research
G Mion, J Le Masson, C Granier, C Hoffmann
The objective of this study was to explore whether ketamine prevents or exacerbates acute or post-traumatic stress disorders in military trauma patients. We conducted a retrospective study of a database from the French Military Health Service, including all soldiers surviving a war injury in Afghanistan (2010-2012). The diagnosis of post-traumatic stress disorder was made by a psychiatrist and patients were analysed according to the presence or absence of this condition. Analysis included the following covariables: age; sex; acute stress disorder; blast injury; associated fatality; brain injury; traumatic amputation; Glasgow coma scale; injury severity score; administered drugs; number of surgical procedures; physical, neurosensory or aesthetic sequelae; and the development chronic pain...
December 2017: Anaesthesia
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