The Clinical journal of pain
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Individuals experiencing neuropathic pain (NP) after spinal cord injury (SCI) present with a variety of pain descriptors in different combinations and at different intensities. These sensory features form distinct patterns, known as sensory symptom profiles. ⋯ Classification of SCI-NP patients into the 5 groups identified in the present study based on their distinct sensory symptom profiles may allow identification of those most likely to respond to a specific analgesic approach.
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Pain catastrophizing has been associated with higher pain intensity, increased risk of developing chronic pain and poorer outcomes after treatment. Despite this, the mechanisms by which pain catastrophizing influences pain remain poorly understood. It has been hypothesized that pain catastrophizing may impair descending inhibition of spinal level nociception. The aims of this study were to compare spinal nociceptive processing in people with chronic widespread pain and pain-free controls and examine potential relationships between measures of pain catastrophizing and spinal nociception. ⋯ Despite increased excitability and decreased inhibition of spinal nociception in patients with chronic widespread pain, we could find no evidence of a significant relationship between pain catastrophizing and measures of spinal nociceptive processing.
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Observational Study
Symptoms of Depression and Risk of Low Back Pain: A Prospective Co-twin Study.
To investigate whether symptoms of depression increase the risk of low back pain (LBP), after adjusting for genetic and environmental influences. ⋯ The magnitude of the association between depression and LBP seems to be small and may be confounded by genetic and early shared environment influences, although firm conclusions could not be made due to small sample size in the case-control analysis. In addition, the observed association is dependent on the method of assessment used for both conditions.
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Chronic pain affects over 100 million adults in the United States, yet continues to be difficult to treat. Concerns continue to mount over the use of opioids to treat noncancer chronic pain (NCCP). Guidelines support the use of adjuvant medications as one of the preferred options for treating chronic pain over opioids. ⋯ Overall adjuvant usage dramatically increased during the study period. Analysis of data demonstrated adjuvant use in chronic pain varied based patient-specific characteristics. These results may allow clinicians, policy makers, and medical educators to identify potential gaps in adjuvant use in certain populations and target areas for clinical, populations-based, and educational improvements in managing NCCP.
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Observational Study
The Association between Headaches and Temporomandibular Disorders is Confounded by Bruxism and Somatic Complaints.
The objective of this observational study was to establish the possible presence of confounders on the association between temporomandibular disorders (TMD) and headaches in a patient population from a TMD and Orofacial Pain Clinic. ⋯ The findings of this study imply that there is a central working mechanism overlapping TMD and headache. Health care providers should not regard these disorders separately, but rather look at the bigger picture to appreciate the complex nature of the diagnostic and therapeutic process.