Articles: neuralgia.
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Randomized Controlled Trial Multicenter Study
Lidocaine medicated plaster, an additional potential treatment option for localized post-surgical neuropathic pain: efficacy and safety results of a randomized, placebo-controlled trial.
To assess the efficacy and safety of lidocaine 700 mg medicated plaster (lidocaine plaster) compared to placebo in patients with moderate to severe chronic post-surgical neuropathic pain (PSNP). ⋯ A clinically relevant pain reduction was observed with lidocaine plaster in patients with PSNP. The safety and tolerability profile is consistent with current knowledge.
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Randomized Controlled Trial Multicenter Study
Dextromethorphan and memantine after ketamine analgesia: a randomized control trial.
Intravenous ketamine is often prescribed in severe neuropathic pain. Oral N-methyl-D-aspartate receptor (NMDAR) antagonists might prolong pain relief, reducing the frequency of ketamine infusions and hospital admissions. This clinical trial aimed at assessing whether oral dextromethorphan or memantine might prolong pain relief after intravenous ketamine. ⋯ Oral dextromethorphan given after ketamine infusion extends pain relief during one month and could help patients to better cope with pain. Future studies should include larger populations stratified on pharmacogenetics screening. Optimization of an oral drug that could extend ketamine antihyperalgesia, with fewer hospital admissions, remains a prime challenge in refractory neuropathic pain.
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Case Reports Multicenter Study
Early US Experience With Stimulation of the Dorsal Root Ganglia for the Treatment of Peripheral Neuropathy in the Lower Extremities: A Multicenter Retrospective Case Series.
Peripheral neuropathy is a chronic pain disorder involving physical, chemical, or metabolic damage to peripheral nerves. Its pain can be intense and disabling. Dorsal root ganglion (DRG) stimulation is an effective treatment for neuropathic pain, including cases with the limited regional distributions that often characterize peripheral neuropathy. ⋯ This small multicenter retrospective case series provides preliminary evidence that the painful symptoms of general peripheral neuropathy in the lower extremities, as well as associated pain medication usage, can be effectively managed by DRG stimulation at the L4-S1 spinal level. Importantly, this treatment appears efficacious for peripheral neuropathy.
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Randomized Controlled Trial Multicenter Study
Gabapentin versus Transdermal Fentanyl Matrix for the Alleviation of Chronic Neuropathic Pain of Radicular Origin: A Randomized Blind Multicentered Parallel-Group Noninferiority Trial.
A number of studies have been published proposing various approaches to the treatment of neuropathic pain; however, to our knowledge, no attempts have been made to compare gabapentin and fentanyl in patients with lumbar radiculopathy. We evaluated the relative efficacy and safety of fentanyl matrix and gabapentin for the treatment of chronic neuropathic pain of radicular origin. The study was designed as a randomized blind multicentered parallel-group noninferiority trial. ⋯ The most commonly reported AEs for patients treated with fentanyl matrix and gabapentin included dizziness (30.8% vs. 44.6%, respectively), somnolence (26.9% vs. 35.7%), and constipation (15.4% vs. 17.9%). This study demonstrated that the analgesic effect of fentanyl matrix is noninferior in comparison with gabapentin and supports the use of fentanyl matrix as an effective and safe treatment for moderate-to-severe chronic neuropathic pain. This trial is registered with NCT01127100.
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Multicenter Study
DRG FOCUS: A Multicenter Study Evaluating Dorsal Root Ganglion Stimulation and Predictors for Trial Success.
Dorsal root ganglion stimulation (DRGS) is a powerful tool in the treatment of chronic, neuropathic pain. The premise of DRGS is similar to that of conventional spinal cord stimulation (cSCS), however, there is more variability in how it can be utilized. While it is this variability that likely gives it its versatility, DRGS is not as straightforward to implement as cSCS. The purpose of this study was to assess the efficacy of DRGS on a broad number of diagnoses, determine which dorsal root ganglia were associated with better outcomes for particular body parts/diagnoses, and evaluate what factors/parameters were associated with higher rates of trial success. ⋯ DRGS can be an effective treatment for a variety of neuropathic pain syndromes, in addition to CRPS. It is recommended that a minimum of 2 leads should be utilized per area being treated. In addition, this therapy was shown to be equally efficacious in any body part/region so long as the area being treated is focal and not widespread.