The Clinical journal of pain
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Randomized Controlled Trial
Do occlusal splints have an effect on complex regional pain syndrome? A randomized, controlled proof-of-concept trial.
Studies have suggested overlaps between various chronic pain conditions and painful temporomandibular disorders (TMDs). The objective of this pilot study was to assess the effectiveness of occlusal splint (OS) therapy on self-reported measures of pain in patients with chronic complex regional pain syndrome (CRPS) as compared with a nontreatment group. ⋯ The use of OS for 7 weeks has no impact on CRPS-related pain but improved signs and symptoms of TMD pain. Future studies should include an active control group and evaluate if long-term changes in measures of oral health impact general health in CRPS-related pain.
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The experience of pain is believed to be influenced by psychologic and genetic factors. A previous study suggested pain catastrophizing and catechol-O-methyltransferase (COMT) genotype influenced clinical pain ratings for patients seeking operative treatment of shoulder pain. This study investigated whether these same psychologic and genetic factors predicted responses to induced shoulder pain. ⋯ These findings from an experimental model converge with those from a surgical cohort and provide additional evidence that the presence of elevated pain catastrophizing and COMT diplotype indicative of low COMT enzyme activity have the potential to increase the risk of developing chronic pain syndromes.
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In contrast to the increasing knowledge of the sensory dysfunction involved in chronic whiplash associated disorders, the use of comprehensive quantitative sensory testing in the acute stage of the condition is sparse. In this study, we sought to investigate the presence of sensory hypoesthesia in participants with acute whiplash injury. ⋯ Our findings demonstrate generalized hypoesthesia in acute whiplash associated disorders suggesting adaptive central nervous system processing mechanisms are involved, regardless of pain and disability. The elevated levels of psychologic distress seen in both groups may also play a role.
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Children with developmental delay are often unable to verbalize pain or advocate for themselves owing to cognitive, motor, or verbal limitations, which puts them at increased risk for poor pain assessment and management. Although patient-controlled analgesia has been shown to be safe, effective, and superior to intermittent opioid dosing, not all children can operate patient-controlled analgesia independently. Parent/nurse-controlled analgesia (PNCA) may be an option for these children. However, the safety and efficacy of PNCA have not been thoroughly evaluated and many practitioners are reluctant to use it. ⋯ Pain scores, side effects, and adverse events suggest that PNCA may be an effective method of pain control for children with developmental delay. Diligent monitoring and education are crucial to ensure safety.