Pain
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Comparative Study
Engagement of descending inhibition from the rostral ventromedial medulla protects against chronic neuropathic pain.
A puzzling observation is why peripheral nerve injury results in chronic pain in some, but not all, patients. We explored potential mechanisms that may prevent the expression of chronic pain. Sprague Dawley (SD) or Holtzman (HZ) rats showed no differences in baseline sensory thresholds or responses to inflammatory stimuli. ⋯ Thus, expression of nerve injury-induced pain may ultimately depend on descending modulation. Engagement of descending inhibition protects in the transition from acute to chronic pain. These unexpected findings might provide a mechanistic explanation for medications that engage descending inhibition or mimic its consequences.
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Randomized Controlled Trial Comparative Study
Randomized trial of group cognitive behavioral therapy compared with a pain education control for low-literacy rural people with chronic pain.
Chronic pain is a common and costly experience. Cognitive behavioral therapies (CBT) are efficacious for an array of chronic pain conditions. However, the literature is based primarily on urban (white) samples. ⋯ Clinical significance of the findings and the number of treatment responders is reported. Overall, these findings indicate that CBT and EDU are viable treatment options in low-SES minority and nonminority groups. Further research should target disseminating and sustaining psychosocial treatment options within underserved populations.
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Chronic and recurrent pain not associated with a disease is very common in childhood and adolescence, but studies of pain prevalence have yielded inconsistent findings. This systematic review examined studies of chronic and recurrent pain prevalence to provide updated aggregated prevalence rates. The review also examined correlates of chronic and recurrent pain such as age, sex, and psychosocial functioning. ⋯ Pain prevalence rates were generally higher in girls and increased with age for most pain types. Lower socioeconomic status was associated with higher pain prevalence especially for headache. Most studies did not meet quality criteria.
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Recent research has begun to examine discrete caregiver pain management behaviors in the infant immunization context. However, there is a dearth of research exploring more global caregiving constructs, such as emotional availability, which can be used to examine the overall sensitivity of caregiver pain management. The aim of the present study was to examine the relationships between caregiver sensitivity (emotional availability) and infant pain behavior (baseline, immediately post-needle, 1 min after needle) over the first year of life. ⋯ Caregiver sensitivity to the infant in pain is predicted most reliably from previous caregiver sensitivity, not infant pain behaviour. The significant concurrent relationship between caregiver sensitivity and infant pain behaviours is not seen until 12 months, replicating patterns in the infant development literature regarding the time at which the attachment relationship between parent and child can be reliably measured. Discussion addresses implications for both researchers and clinicians who work with infants in pain.