Articles: neuralgia.
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Int. J. Clin. Pract. · Nov 2021
Assessment of Serum Vitamin D Levels in the serum of Patients with Postherpetic neuralgia and its correlation to pain severity: A cross-sectional comparative study.
Vitamin D is an essential micronutrient for the maintenance of many functions in the human body. Postherpetic neuralgia (PHN) is caused by the reactivation of the latent varicella-zoster virus (VZV) in the neurons. This study aims to assess the serum vitamin D level in patients with PHN and to correlate the level of vitamin D with pain severity. ⋯ PHN patients had a high prevalence of vitamin D deficiency and those who had vitamin D deficiency were older and had higher degrees of pain for a longer duration. In PHN patients, vitamin D deficiency was moderately associated with increased severity and duration of pain.
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Neuropathic pain (NP) and complex regional pain syndrome (CRPS) in children can result in significant disability and emotional distress. Early assessment and treatment could potentially improve pain, function, quality of life, and reduce costs to the health care system. Currently, there are no screening tools for pediatric NP and CRPS. This research aimed to develop and establish the content validity of a screening tool for pediatric NP and CRPS using a phased approach. ⋯ The Pediatric PainSCAN is a novel screening tool that has undergone rigorous development and content validity testing. Further research is needed to conduct item reduction, determine scoring, and test additional measurement properties.
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About one-third of patients with multiple sclerosis (MS) suffers from chronic and excruciating central neuropathic pain (CNP). The mechanism underlying CNP in MS is not clear, since previous studies are scarce and their results are inconsistent. Our aim was to determine whether CNP in MS is associated with impairment of the spinothalamic-thalamocortical pathways (STTCs) and/or increased excitability of the pain system. ⋯ CNP in MS is characterized by a specific impairment of STTC function, the innocuous thermal pathways, and by pain hyperexcitability. Whereas CNP presence is associated with STTC impairment, its severity and extent are associated with pain hyperexcitability. Interventions that reduce excitability level may therefore mitigate CNP severity.