European journal of pain : EJP
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Randomized Controlled Trial
Involvement of α2 -adrenoceptors in inhibitory and facilitatory pain modulation processes.
In healthy humans, high-frequency electrical stimulation (HFS) of the forearm not only produces hyperalgesia at the site of stimulation but also reduces sensitivity to pressure-pain on the ipsilateral side of the forehead. In addition, HFS augments the ipsilateral trigeminal nociceptive blink reflex and intensifies the ipsilateral component of conditioned pain modulation. The aim of this study was to determine whether α2-adrenoceptors mediate these ipsilateral nociceptive influences. ⋯ These findings imply involvement of α2-adrenoceptors both in ipsilateral antinociceptive and pronociceptive pain modulation processes. However, a mechanism not involving α2-adrenoceptors appears to mediate analgesia in the ipsilateral forehead after HFS.
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Randomized Controlled Trial
No effect of the cyclooxygenase-2 inhibitor etoricoxib on pre-emptive and post-operative analgesia in visceral surgery: results of a randomized controlled trial.
Pre-emptive analgesia in perioperative care has potential benefits for patients. The pre-emptive and postoperative analgesic effects of the cyclooxygenase-2 inhibitor etoricoxib have been investigated using a 2 × 2 factorial trial design. ⋯ The effect of administering etoricoxib was not superior to placebo in reducing the morphine dose required for postoperative analgesia. The lack of changes in peripheral nociception suggests that central algetic mechanisms are of higher impact in the development of postoperative pain following abdominal or thoracic surgery.
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Randomized Controlled Trial Multicenter Study Comparative Study
Capsaicin 8% patch versus oral pregabalin in patients with peripheral neuropathic pain.
Clinical trials have not yet compared the efficacy of capsaicin 8% patch with current standard therapy in peripheral neuropathic pain (PNP). ⋯ The capsaicin 8% patch provided non-inferior pain relief to an optimized dose of pregabalin in PNP, with a faster onset of action, fewer systemic side effects and greater treatment satisfaction.
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Randomized Controlled Trial Multicenter Study
Efficacy and safety of nicoboxil/nonivamide ointment for the treatment of acute pain in the low back - A randomized, controlled trial.
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Randomized Controlled Trial Multicenter Study
Factors associated with pain and disability reduction following exercise interventions in chronic whiplash.
Some studies support the prescription of exercise for people with whiplash-associated disorders (WAD); however, the response is highly variable. Further research is necessary to identify factors which predict response. ⋯ Factors associated with treatment response after exercise interventions differ in the short and long term and differ depending on whether neck pain or disability is considered as the primary outcome. Participation in a neck-specific exercise intervention, in contrast to general physical activity, was the only factor that consistently indicated higher odds of treatment success. These results support the prescription of neck-specific exercise for individuals with chronic WAD.