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We discuss the history and current status of evidence-based medicine for the prevention and treatment of acute and chronic pain as it has developed in the Cochrane Collaboration's Pain, Palliative and Supportive Care Review Group.To date, the Pain, Palliative and Supportive Care Review Group has published 277 reviews and a further 11 reviews of systematic reviews summarizing the evidence for interventions. The Cochrane Library has readily available high-quality summaries of evidence of pharmacological interventions especially for postsurgical pain but also for chronic musculoskeletal and neuropathic pain. The library covers all forms of intervention, not only pharmacological.The world of evidence-based medicine is changing: most historical trials have been entered into reviews, but the evidence is still not well disseminated and needs to be better translated into decision support. Evidence should be at the heart of policymaking. Much has been achieved in the past 21 years, but there are no grounds for complacency.

Objective: Pain is one of the most common reasons for an individual to consult their primary care physician, with most chronic pain being treated in the primary care setting. However, many primary care physicians/non-pain medicine specialists lack enough awareness, education and skills to manage pain patients appropriately, and there is currently no clear, common consensus/formal definition of "pain chronification"., Methods: This article, based on an international Change Pain Chronic Advisory Board meeting which was held in Wiesbaden, Germany, in October 2016, provides primary care physicians/non-pain medicine specialists with a narrative overview of pain chronification, including underlying physiological and psychosocial processes, predictive factors for pain chronification, a brief summary of preventive strategies, and the role of primary care physicians and non-pain medicine specialists in the holistic management of pain chronification., Results: Based on currently available evidence, we propose the following consensus-based definition of pain chronification which provides a common framework to raise awareness among non-pain medicine specialists: "Pain chronification describes the process of transient pain progressing into persistent pain; pain processing changes as a result of an imbalance between pain amplification and pain inhibition; genetic, environmental and biopsychosocial factors determine the risk, the degree, and time-course of chronification.", Conclusions: Early intervention plays an important role in preventing pain chronification and, as key influencers in the management of patients with acute pain, it is critical that primary care physicians are equipped with the necessary awareness, education and skills to manage pain patients appropriately.

Twenty years ago, the main barriers to successful cancer pain management were poor assessment by physicians, and patients' reluctance to report pain and take opioids. Those barriers are almost exactly the same today. Cancer pain remains under-treated; in Europe, almost three-quarters of cancer patients experience pain, and almost a quarter of those with moderate to severe pain do not receive any analgesic medication. Yet it has been suggested that pain management could be improved simply by ensuring that every consultation includes the patient's rating of pain, that the physician pays attention to this rating, and a plan is agreed to increase analgesia when it is inadequate. After outlining current concepts of carcinogenesis in some detail, this paper describes different methods of classifying and diagnosing cancer pain and the extent of current under-treatment. Key points are made regarding cancer pain management. Firstly, the pain may be caused by multiple different mechanisms and therapy should reflect those underlying mechanisms - rather than being simply based on pain intensity as recommended by the WHO three-step ladder. Secondly, a multidisciplinary approach is required which combines both pharmacological and non-pharmacological treatment, such as psychotherapy, exercise therapy and electrostimulation. The choice of analgesic agent and its route of administration are considered, along with various interventional procedures and the requirements of palliative care. Special attention is paid to the treatment of breakthrough pain (particularly with fast-acting fentanyl formulations, which have pharmacokinetic profiles that closely match those of breakthrough pain episodes) and chemotherapy-induced neuropathic pain, which affects around one third of patients who receive chemotherapy. Finally, the point is made that medical education should place a greater emphasis on pain therapy, both at undergraduate and postgraduate level.

Phantom limb pain affects between 50 and 80% of amputees. With an increasing number of battle casualties having had an amputation after combat trauma, it is inevitable that both primary and secondary care clinicians will come into contact with a patient with phantom limb pain (PLP). It is widely acknowledged that its complex aetiology means that this condition is often poorly understood and difficult to manage. A growing pathophysiological understanding is shedding new light on the mechanisms which underlie PLP. Knowledge of these mechanisms will inform treatment and enable clinicians to plan and implement solutions which make a difference to those individuals with this condition. This paper seeks to outline current research into this condition and proposes an approach to treatment. This approach has been formulated from an amalgamation of clinical experience working with battle casualties at the Defence Medical Rehabilitation Centre, Headley Court.

Chronic pain is currently under-diagnosed and under-treated, partly because doctors' training in pain management is often inadequate. This situation looks certain to become worse with the rapidly increasing elderly population unless there is a wider adoption of best pain management practice. This paper reviews current knowledge of the development of chronic pain and the multidisciplinary team approach to pain therapy. The individual topics covered include nociceptive and neuropathic pain, peripheral sensitization, central sensitization, the definition and diagnosis of chronic pain, the biopsychosocial model of pain and the multidisciplinary approach to pain management. This last section includes an example of the implementation of a multidisciplinary approach in Belgium and describes the various benefits it offers; for example, the early multidimensional diagnosis of chronic pain and rapid initiation of evidence-based therapy based on an individual treatment plan. The patient also receives continuity of care, while pain relief is accompanied by improvements in physical functioning, quality of life and emotional stress. Other benefits include decreases in catastrophizing, self-reported patient disability, and depression. Improved training in pain management is clearly needed, starting with the undergraduate medical curriculum, and this review is intended to encourage further study by those who manage patients with chronic pain.

In response to increasing awareness of the need to improve Post Graduate Medical Officers training in the use of analgesics when on Operations and exercises, a new "Pain Day" format has been realised and included in the Post Graduate Medical Officers Course. This article discusses the format of the Pain Day; gives evidence of the feedback received; explores areas where further training may be required and suggests mechanisms through which improved training could be provided throughout the armed forces medical community.

Objectives: To assess the confidence of deploying Role 1 Medical Officers (MOs) in the use of parenteral analgesia, to collate opinion as to whether analgesia training for Role 1 MOs is fit for purpose and to explore options for future analgesic approaches at Role 1., Methods: A survey distributed to Role 1 doctors prior to deployment to Afghanistan., Results: Areas of expressed concern included the use of ketamine and a lack of experience of intraosseous drug administration. Qualitative data collected included anecdotal experiences with analgesia administration which provides evidence to support a change in training., Conclusions: Doctors have the capability to provide good analgesic care but lack the confidence and experience to do it effectively. Improved analgesia training is required for deploying Role 1 MOs.

Purpose of Review: The purpose of this review is to look at the options available for the management of pain in victims of conflict, from the point of wounding, through a chain of evacuation, to rehabilitation in the home country. This is relevant for all healthcare workers as any could find themselves treating veterans and having a clear understanding of what occurred will help., Recent Findings: The article will discuss developments in the prehospital environment, the field hospital, during repatriation and back in the home country to include neurostimulation in cases of refractory pain. Evidence when available is provided and the difficulties in conducting research in this environment are touched upon., Summary: The current agents, routes and techniques found in any civilian medical service can be brought to bear with great benefit. However, the secret appears to lie in a robust approach to the importance of treating pain, encouraged in all healthcare professionals, and the recognition of the role of integrating the healthcare package throughout the chain of evacuation. Research remains difficult.

Background: Despite limited empirical support, chronic pain has traditionally been defined mainly on the basis of its duration, which takes no account of the causative mechanisms or its clinical significance., Scope: For this commentary on current pain management practice, the CHANGE PAIN Advisory Board considered the evidence for adopting a prognostic definition of chronic pain. The rationale underlying this approach is to take psychological and behavioural factors into account, as well as the multidimensional nature of pain. Measures of pain intensity, interference with everyday activities, role disability, depression, duration and number of pain sites are used to calculate a risk score, which indicates the likelihood of a patient having pain in the future. The consistency of a prognostic definition with the concept of integrated patient care was also considered., Findings: When this method was compared with the number of pain days experienced over the previous 6 months--in patients with back pain, headache or orofacial pain--it was a better predictor of clinically significant pain 6 months later for all three pain conditions. Further evidence supporting this approach is that several factors other than the duration of pain have been shown to be important prognostic indicators, including unemployment, functional disability, anxiety and self-rated health. The use of a multifactorial risk score may also suggest specific measures to improve outcomes, such as addressing emotional distress. These measures should be undertaken as part of an integrated pain management strategy; chronic pain is a biopsychosocial phenomenon and all aspects of the patient's pain must be dealt with appropriately and simultaneously for treatment to be effective., Conclusion: The implementation of a prognostic definition and wider adoption of integrated care could bring significant advantages. However, these measures require improved training in pain management and structural revision of specialist facilities, for which political support is essential.

The major objectives of the CHANGE PAIN International Advisory Board are to enhance understanding of chronic pain and to develop strategies for improving pain management. At its second meeting, in November 2009, evidence was presented that around one person in five in Europe and the USA experiences chronic pain, and the delay before referral to a pain specialist is often several years. Moreover, physicians' pharmacological approach to chronic pain is inconsistent, as evidenced by the huge variation in treatment between different European countries. It was agreed that efficient communication between physician and patient is essential for effective pain management, and that efficacy/side-effect balance is a key factor in choosing an analgesic agent. The multifactorial nature of chronic pain produces various physical and psychological symptoms, so the management of chronic pain should be tailored to the individual. Pharmacological therapy must be matched to the causative mechanisms responsible, or it is likely to prove ineffective and risk the development of a 'vicious circle'; doses are increased because of inadequate pain relief, but this increases side-effects so doses are reduced, pain relief is then inadequate, so doses are increased, and so on. Pain management decisions should not therefore be based solely on the severity of pain. Based on the concept of individual treatment targets (ITT), the CHANGE PAIN Scale was adopted - a simple, user-friendly assessment tool to improve communication between physician and patient. The 11-point NRS enables the patient to rate the current pain intensity and to set a realistic individual target level. On the reverse are six key parameters affecting the patient's quality of life; clinicians simply need to agree with patients whether improvement is needed in each one. Regular use can establish the efficacy and tolerability of pain management, and the rate of progress towards individual treatment targets.

The article discusses various studies over the uncertainty of pain measurement. It informs that 44 percent of patients in hospital suffer from moderate or severe acute pain in the U.S. and 91 percent of Australians suffer with chronic pain. The restrictiveness for the guidelines of chronic pain treatment depends on the range of therapies allowed. Each study has reported a positive association between good pain relief and measurements such as quality of life, and activities of daily living.