Pain practice : the official journal of World Institute of Pain
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Although neuropathic pain can be acute in nature, in most patients the pain is persistent (or "refractory"). Patients with chronic neuropathic pain are seen most often in clinical practice. It consists of a number of different disease-specific indications, each of which can have differing diagnostic definitions and cutoffs. ⋯ The burden of neuropathic pain on patients and healthcare systems appears to be potentially large, with an estimated prevalence of 1.5%. Patients with neuropathic pain experience a poor health-related quality of life and consume a high level of healthcare resources, and costs. The future prioritization by healthcare policy makers for neuropathic pain treatment funding requires further data to clarify its epidemiology, the burden on the health of patients, and the demand on healthcare budgets.
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Radiofrequency is a minimally invasive, target-selective technique that has been in clinical use for more than 25 years and has demonstrated success at reducing pain in several chronic pain conditions, including trigeminal neuralgia, chronic low back pain, postherpetic neuralgia, and complex regional pain syndrome. However, the success of radiofrequency in chronic pain has not been adequately reproduced in good-quality, randomized controlled trials, and its use in the management of neuropathic pain is under some debate. ⋯ Nevertheless, clinical experience suggests that radiofrequency may be a useful tool in the overall management of refractory neuropathic pain. Pulsed radiofrequency in particular is a minimally destructive procedure that may offer new opportunities and a broader perspective for therapy with radiofrequency.
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Refractory neuropathic pain can be devastating to a patient's quality of life. Ideally, the primary goal of therapy would be to prevent the pain, yet even the most appropriate treatment strategy may be only able to reduce the pain to a more tolerable level. ⋯ Even so, effective pain relief is achieved in less than half of patients with chronic neuropathic pain. In refractory patients, combination therapy using two agents with synergistic mechanisms of action may offer greater pain relief without compromising the side-effect profile of each agent.
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Optimal management of patients with chronic neuropathic pain requires a multidisciplinary approach that may include surgery. Yet despite the fact that lumbosacral spinal surgery, for example, is performed in thousands of patients every year, there is very little controlled clinical data to support its use or that of other surgical techniques in the treatment of chronic nonmalignant pain, especially neuropathic pain. ⋯ However, before considering a surgical procedure, a nonsurgical approach should have been tried and the suitability of the patient must be carefully assessed. To fully establish the role of surgery in the treatment of chronic neuropathic pain, further well-designed, prospective, controlled trials are essential.