Pain practice : the official journal of World Institute of Pain
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Review Meta Analysis
Nalbuphine for spinal anesthesia : A Systematic Review and meta-analysis.
Various adjuvants for prolongation of intra-operative and postoperative analgesia have been clinically studied, but the safety and efficiency of nalbuphine as an adjuvant to local anesthetics in spinal anesthesia remains unconfirmed. Therefore, we conducted a meta-analysis about the effect of nalbuphine as an adjuvant to local anesthetics in spinal anesthesia in regard to time of onset of sensory blockade and motor blockade, duration of motor blockade, 2-segment sensory regression time, the duration of analgesia, and incidence of side effects to provide a reliable basis for clinical application. ⋯ Nalbuphine as additives to local anesthetics can significantly prolong the two segments of sensory block and the average duration of analgesia without increasing the incidence of adverse reactions when compared with normal saline group. In addition, the analgesic efficacy of nalbuphine served as an adjunct to local anesthetics was clinically not different from that of the potent opioids, but the occurrence of hypotension, shivering, and pruritus was lower than the potent opioids.
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Randomized Controlled Trial
Allopurinol for fibromyalgia pain in adults: a randomized controlled trial.
Allopurinol is a potent inhibitor of the enzyme xanthine oxidase used in the treatment of hyperuricemia and gout. Because it is well known that purines exert multiple affects on pain transmission, we hypothesized that the inhibition of xanthine oxidase by allopurinol could be a valid strategy to treat pain in humans. This study aimed to compare the analgesic efficacy of oral allopurinol versus placebo as an adjuvant therapy in patients displaying fibromyalgia. ⋯ Although previous findings indicated that allopurinol could present intrinsic analgesic effects in both animals and humans, this study showed no benefit of the use of oral allopurinol as an adjuvant strategy during 30 days in women displaying fibromyalgia. However, considering previous promising results, new prospective studies are still valid to further investigate allopurinol and more selective purine derivatives in the management of pain syndromes.
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Randomized Controlled Trial
Impact of duloxetine on succinylcholine-induced postoperative myalgia after direct microlaryngoscopic surgeries: Randomized controlled double-blind study.
Succinylcholine is a preferred muscle relaxant for rapid sequence intubation. Postoperative myalgia (POM) is one of its commonest adverse effects with unknown pathogenesis. Various modalities were examined to reduce POM. We hypothesized that duloxetine may reduce the incidence and severity of fasciculation or succinylcholine-induced POM in outpatient surgeries. ⋯ Preoperative oral duloxetine 30 mg administration decreased incidence and severity of succinylcholine-related muscle POM and fasciculations. It was also effective in reducing postoperative rescue analgesic requirement with better patients' satisfaction and no serious adverse effects.
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The purpose of this study was to retrospectively observe the anatomic relationship between dorsal S1 foramen (DS1F) and ventral S1 foramen (VS1F) through computed tomography (CT) analysis and to prospectively determine the optimal angle of ipsilateral tunnel view technique for performing S1 transforaminal epidural steroid injection (S1-TFESI). ⋯ The entrance of DS1F is easily identified with an ipsilateral 25 degrees-tunnel view technique while performing S1-TFESI, and it is a clinically applicable approach.