The Clinical journal of pain
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Motor vehicle collisions (MVC) are a major cause of injury, which frequently lead to chronic pain and prolonged disability. Several studies have found that seeking or receiving financial compensation following MVC leads to poorer recovery and worse pain. We evaluated the evidence for the relationship between compensation and chronic pain following MVC within a biopsychosocial framework. ⋯ Although causal relationships cannot be assumed, the findings imply that aspects of loss, injustice, and secondary mental health outcomes lead to chronic pain following MVC. Further robust prospective research is required to understand the complex relationship between compensation systems and pain following road trauma, particularly the role of secondary mental health outcomes.
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Insomnia is a common problem for people with chronic pain. It is unclear, however, whether interdisciplinary treatment centered on pain management, rather than sleep, confers a benefit in reducing insomnia symptoms. In this study, we examined clinically important change in insomnia severity following participation in an interdisciplinary chronic pain rehabilitation program. ⋯ Insomnia improves overall following interdisciplinary rehabilitation for chronic pain, but most patients with clinical insomnia continue to have a significant sleep problem after treatment, and some patients may get worse. Interventions to alleviate persistent insomnia comorbid with chronic pain are likely to require a more intensive focus on sleep itself.
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To reanalyze scoring criteria for automatic detection of nociceptive flexion reflexes (NFRs) in electromyography (EMG) recordings and to improve detection accuracy by accounting for multiple characteristics of the recordings, such as baseline noise level or sampling rate. ⋯ The automatic detection of reflex responses in electromyograms can be significantly improved by including multiple reflex, baseline, and EMG characteristics into a classification model. These findings should help to improve the accuracy of currently used standard measurement algorithms and algorithms engineered toward specific properties, such as short measurements or less induced pain for the patients.
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Randomized Controlled Trial
Body Awareness as an Important Target in Multidisciplinary Chronic Pain Treatment: Mediation and Subgroup Analyses.
The results of a recently performed randomized clinical trial showed that the effect of a multidisciplinary treatment of chronic pain patients on body awareness (BA), catastrophizing, and depression was improved by adding psychomotor therapy (PMT), an intervention targeting BA. No significant effects were found on quality of life and disability. The present follow-up study aimed to explore the relationship between improvements in BA and multidisciplinary chronic pain rehabilitation treatment outcome across treatment conditions and the possible mediating effect of BA between treatment conditions. Furthermore, the hypothesis that patients with low BA benefit more from PMT was investigated. ⋯ BA might be an important target of treatment to improve the multidisciplinary treatment outcome in chronic pain patients. Furthermore, PMT is an intervention that seems to provide its benefits through improving BA and may be especially beneficial for patients with low BA.
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Severe pain after joint replacement surgeries is common and is usually managed by opioid analgesics. We described joint replacement surgery patients who received prescriptions for long-acting opioids (LAOs) and compared their health care utilization and costs with postsurgical patients who did not receive LAO prescriptions. ⋯ We found associations between patients who received prescriptions for LAOs and increased costs and utilization. Future studies should elucidate causal relationships between LAOs and increased resource use. Providers should consider alternative pain management strategies.