Current pain and headache reports
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Curr Pain Headache Rep · Jun 2012
ReviewEpidemiology of neuropathic pain and its impact on quality of life.
Epidemiology is an important clinical tool in designing and evaluating management and prevention strategies, and is particularly relevant to neuropathic pain. However, there is a relative lack of accurate information available. In one sense, neuropathic pain describes a symptom or a mechanism, rather than a specific disease; on the other hand, there are sufficient similarities in the effects and response to treatment between different causes to make it worthwhile to consider neuropathic pain as a distinct condition. ⋯ Estimates of prevalence that are based on specific causes of neuropathic pain tend to be lower (1-2%) than those that are based on reports of the classic symptoms (6-8%), and further methodological research is needed. All neuropathic pain is associated with poor general health, comparable with other severe chronic diseases. The importance of newly proposed risk factors, including genetic factors, still needs to be assessed at a population level.
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Curr Pain Headache Rep · Jun 2012
ReviewSpinal cord stimulation: neurophysiological and neurochemical mechanisms of action.
Chronic neuropathic pain can significantly reduce quality of life and place an economic burden on individuals and society. Spinal cord stimulation (SCS) is an alternative approach to the treatment of neuropathic pain when standard pharmacological agents have failed. However, an improved understanding of the mechanisms by which SCS inhibits pain is needed to enhance its clinical utility. This review summarizes important findings from recent studies of SCS in animal models of neuropathic pain, highlights current understanding of the spinal neurophysiological and neurochemical mechanisms by which SCS produces an analgesic effect, and discusses the potential clinical applicability of these findings and future directions for research.
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Curr Pain Headache Rep · Jun 2012
Sinus venous stenosis-associated idiopathic intracranial hypertension without papilledema as a powerful risk factor for progression and refractoriness of headache.
Data from two recent studies strongly support the hypothesis that idiopathic intracranial hypertension without papilledema (IIHWOP) could represent a powerful risk factor for the progression of pain in primary headache individuals. The first study highlights that an asymptomatic IIHWOP is much more prevalent than believed in the general population and occurs only in central venous stenosis carriers. In the second study, about one half of a large consecutive series of unresponsive primary chronic headache patients shows significant sinus venous stenosis. ⋯ Based on the available literature data, we propose that central sinus stenosis-related IIHWOP, although highly prevalent among otherwise healthy people, represents an important modifiable risk factor for the progression and refractoriness of pain in patients predisposed to primary headache. The mechanism could refer to up to one half of the primary chronic headache patients with minimal response to treatments referring to specialized headache clinics. Due to the clinical and taxonomic relevance of this hypothesis further studies are urgently needed.
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Curr Pain Headache Rep · Apr 2012
ReviewComplex [corrected] regional pain syndrome: what specialized rehabilitation services do patients require?
Complex [corrected] regional pain syndrome (CRPS) is a complex disorder, the optimal treatment of which requires an interdisciplinary approach encompassing medical, interventional, psychological, and rehabilitation services that emphasize the role of physical and occupational therapies. The central focus of treatment is the restoration of function, utilizing a systematic, coordinated, and progressive set of therapeutic strategies. The poorly delineated pathophysiology and variable course of CRPS suggest that individualized strategies are required for optimal management, but also mean that carefully controlled trials of physiotherapy are difficult to conduct. This article presents a brief review of the nature and pathophysiology of CRPS, the medical and psychological approaches that have been found to be effective, and a review of the current trends in rehabilitation.
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Curr Pain Headache Rep · Apr 2012
ReviewFocused review of interdisciplinary pain rehabilitation programs for chronic pain management.
Interdisciplinary pain rehabilitation programs (IPRPs) are based on a functional restoration approach to treating complex chronic pain conditions. With a greater appreciation for a biopsychosocial approach to more effectively manage patients with chronic pain has come the development of more comprehensive treatment programs with less of a biomedical emphasis (i.e., interventional therapy, unimodal physical therapy, and passive modalities) and more of a biopsychosocial one. Interdisciplinary programs involve the use of multiple disciplines such as physical and occupational therapy, pain psychology, medical pain management, vocational rehabilitation, relaxation training, and nursing educations. ⋯ A greater understanding of the unique features and shared values of successful programs will help one better understand how these programs can be more widely used and available. The review will also highlight common psychometric outcomes tools used in assessing patients and monitoring outcomes. Most importantly, the review will help to answer a common question, even among pain physicians: "What goes on in those chronic pain programs?"