Articles: chronic-pain.
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Dorsal root ganglion (DRG) stimulator leads were designed to be placed percutaneously, yet open surgical placement via laminectomy is an option. We present the largest series to date of surgically-placed DRG stimulators and the first series where open surgical implantation was the chosen technique and not a salvage procedure. ⋯ Open DRG lead placement via laminotomy/laminectomy is reported as a salvage procedure but may have comparable safety and efficacy profile to percutaneous implantation when utilized as the primary implantation method. Before establishing open DRG as an alternative permanent implantation method, more studies are needed to determine whether such benefits as less migration outweigh the risks of a more invasive implantation procedure.
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Neuropathic pain is pain due to a disease or lesion of the somatosensory system, and can be either spontaneous, evoked or both. Hyperpathia is a type of evoked pain defined by IASP as 'a painful syndrome characterized by an abnormally painful reaction to a stimulus, especially a repetitive stimulus, as well as an increased threshold'. The literature is sparse, and definitions are unclear and inconsistent. ⋯ Hyperpathia is a syndrome of evoked pain. It is poorly defined and little is known about its clinical presentation. Since it is part of pain symptomatology it is important to have a clear definition and understand the pathophysiology behind. This study explored signs of hyperpathia in a heterogeneous group of patients with peripheral neuropathic pain. We used stimulus-response function and repetitive pinprick stimulation to group patients based on the IASP definition. More studies are needed to understand how symptoms and signs coincide.
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J Pain Palliat Care Pharmacother · Oct 2024
Comparison of Cannabis-Based Medicinal Product Formulations for Fibromyalgia: A Cohort Study.
This cohort study aims to assess the outcomes of fibromyalgia patients enrolled in the UK Medical Cannabis Registry prescribed a homogenous selection of cannabis-based medicinal products (CBMPs). A cohort study of fibromyalgia patients treated with oils (Adven®, Curaleaf International, UK), dried flower (Adven®, Curaleaf International, UK) or both CBMPs was performed. Primary outcomes were changes from baseline at 1, 3, 6 and 12 months in validated patient-reported outcome measures. ⋯ Improvements were observed across all primary outcomes with no differences observed across different formulations of CBMPs. Adverse events were reported by one-quarter of participants and were more likely to reported by cannabis naïve patients. This present work through focusing on a homogeneous group of CBMPs can help inform randomized controlled trials after observing signals of improvement associated with a specific cultivar of CBMPs.
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Sympathetically mediated orofacial pain is a rare form of craniofacial pain that may be refractory to conventional medical management. We report two cases of orofacial pain with sympathetic features treated with cervical spinal cord stimulation (SCS) using burst waveform with passive recharge. In addition, we present a narrative review of cervical SCS use in the management of orofacial pain. ⋯ Cervical SCS is a viable therapeutic option for patients with orofacial pain syndromes including those with sympathetic features, although further randomized clinical studies are warranted that should include a comprehensive set of outcomes measuring pain intensity, physical function, emotional function, quality of life, and general well-being.