The Clinical journal of pain
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Randomized Controlled Trial
Local pain and spreading hyperalgesia induced by intramuscular injection of nerve growth factor are not reduced by local anesthesia of the muscle.
Injections with local anesthesia for therapeutic and diagnostic purposes are common clinical practice. This double-blind placebo controlled study explores the rational of local anesthetic blocks for the detection of muscle pain as the primary generator in spreading hyperalgesic conditions. ⋯ Muscle pain and spreading hyperalgesia induced by NGF is maintained despite anesthesia of the primary nociceptive locus. This indicates that intramuscular injection of local anesthetics may not be a valid diagnostic method for primary muscle pain.
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Randomized Controlled Trial
Intravenous regional ketorolac and lidocaine in the treatment of complex regional pain syndrome of the lower extremity: a randomized, double-blinded, crossover study.
Intravenous regional blocks (IVRBs) with ketorolac and lidocaine have been reported to be useful in the treatment of complex regional pain syndrome (CRPS). This is the first controlled prospective study of IVRB with lidocaine and ketorolac for treatment of pain and edema in CRPS of the lower extremity in adults. ⋯ IVRB with ketorolac and lidocaine produced only short-term pain reduction in patients with CRPS involving the lower extremity after 4 serial injections in our study group. Prospective study is warranted, particularly in the pediatric population.
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The study aimed to determine the degree to which social capital (a combination of social resources that can be beneficial to a person's physical health and well-being), personal coping strategies, and additional personal and disease-related factors, contribute to the functioning and quality of life (QoL) of fibromyalgia (FM) patients. ⋯ Bonding social capital, problem-solving coping strategies, and the duration of FM contribute positively to functioning and QoL of FM patients; whereas, emotional-focused coping strategies do the opposite. Further research to test the effects of strengthened social capital and enhanced problem-solving rather than emotion-focused coping strategies on functioning and QoL of FM patients is warranted.
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Randomized Controlled Trial Multicenter Study
Pregabalin for peripheral neuropathic pain: a multicenter, enriched enrollment randomized withdrawal placebo-controlled trial.
To date, published neuropathic pain randomized controlled trials of pregabalin have involved primarily diabetic peripheral neuropathy (DPN) and postherpetic neuralgia (PHN). This multicenter trial evaluated pregabalin in a broader range of neuropathic pain etiologies. ⋯ These results support previous evidence of pregabalin efficacy but further demonstrate efficacy and tolerability in a broader range of peripheral neuropathic pain conditions beyond just DPN and PHN.
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Randomized Controlled Trial Comparative Study
Fluoroscopic stellate ganglion block for postmastectomy pain: a comparison of the classic anterior approach and the oblique approach.
Stellate ganglion block is usually performed with the classic anterior paratracheal approach. The anatomy of the stellate ganglion being in close proximity to various critical structures renders a number of complications, which are potentially associated with its blockade. The aim of this study was to assess the analgesic efficacy and safety of a new approach of the stellate ganglion block using an oblique fluoroscopic view. ⋯ The oblique fluoroscopic approach of the stellate ganglion block is as effective as the anterior paratracheal approach but is safer and more satisfactory to the patients.