European journal of pain : EJP
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Pain in Parkinson's disease (PD) is a common and heterogeneous non-motor symptom. Although the characteristics and predictors of pain in general and of central pain in particular are still largely unknown. ⋯ In a consecutive series of 292 patients with PD, almost three quarters of patients with PD reported pain. The study results revealed that pain was related to more severe motor symptoms, anxiety symptoms and comorbidities. Among patients with pain, those with central parkinsonian subtype had distinct demographic and clinical features, including lower levodopa responsiveness for non-axial motor symptoms and greater responsiveness of pain to antiparkinsonian treatment.
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Musculoskeletal (MS) pain is common. It often exists in several sites and is recurrent. Psychosocial difficulties and unhealthy behaviours have been related to multisite MS pain, but no literature has assessed the impact of accumulated psychosocial and lifestyle factors on recurrent multiple MS pain. ⋯ This study found subgroups of adolescents at risk of recurrent multisite musculoskeletal pain during late adolescence. The accumulation of multiple adverse behaviours is likely to provide new perspectives for understanding the multidimensional nature of multiple MS pains.
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Cannabinoids are proposed in a wide array of medical indications. Yet, the evaluation of adverse effects in controlled clinical studies, following the evidence-based model, has partly been bypassed. On the other hand, studies on the consequences of recreational use of cannabis and experimental studies bring some insights on the potential long-term consequences of cannabinoids use. ⋯ The assessment of benefice-risk balance of medical use of cannabis and cannabinoids needs to carefully explore populations that could be more at-risk of psychiatric and cognitive complications.