Pain research & management : the journal of the Canadian Pain Society = journal de la société canadienne pour le traitement de la douleur
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Pain is a common and debilitating symptom experienced by cancer patients of all ages. Cancer pain is associated with elevated levels of depression; however, age-related patterns in this relationship remain unclear. This information is important to provide effective palliation of pain and depression to the growing numbers of older cancer patients. ⋯ The weight of the evidence suggests that younger and older cancer patients with pain report comparable levels of depression. However, this conclusion remains preliminary due to the methodological limitations of the available studies. Research is needed to more adequately address this important issue.
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Converging lines of evidence suggest that anxiety sensitivity and fear of pain may be important vulnerability factors in the development of avoidance behaviours and disability in adults with chronic pain. However, these factors have not been evaluated in children with chronic pain. ⋯ These findings indicate that children with high levels of anxiety sensitivity had a higher fear of pain, which, in turn, was linked to increased pain disability. The results of this study suggest that anxiety sensitivity and fear of pain may play important and distinct roles in the processes that maintain chronic pain and pain-related disability in children.
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Randomized Controlled Trial
Fifteen minutes of left prefrontal repetitive transcranial magnetic stimulation acutely increases thermal pain thresholds in healthy adults.
Transcranial magnetic stimulation (TMS) of the motor cortex appears to alter pain perception in healthy adults and in patients with chronic neuropathic pain. There is, however, emerging brain imaging evidence that the left prefrontal cortex is involved in pain inhibition in humans. ⋯ rTMS over the left prefrontal cortex increases thermal pain thresholds in healthy adults. Results from the present study support the idea that the left prefrontal cortex may be a promising TMS cortical target for the management of pain. More research is needed to establish the reliability of these findings, maximize the effect, determine the length of effect and elucidate possible mechanisms of action.
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Case Reports
Pregabalin-induced remission in a 62-year-old woman with a 20-year history of vulvodynia.
A case of a 62-year-old woman presenting with a 20-year history of vulvodynia previously unresponsive to medical treatment is described. The epidemiology, phenomenology and medical management of vulvodynia is reviewed. The case presentation illustrates the role of pregabalin in successful medical management of this chronic pain disorder, as well as the management of common psychiatric morbidities associated with this condition.
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As the North American population ages, the prevalence of knee osteoarthritis and the surgical interventions (ie, total knee arthroplasty [TKA]) aimed at correcting pain and disability will also rise proportionally. Therefore, efforts to better understand the factors associated with surgical outcomes are warranted. To date, no studies have examined the impact of psychosocial factors on acute postoperative TKA pain. ⋯ These results have postoperative pain management implications. Heightened attention to psychosocial variables, such as postoperative catastrophizing and negative mood, may be useful in identifying patients at risk for greater postoperative pain.