Pain medicine : the official journal of the American Academy of Pain Medicine
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Review Case Reports
Increasing back and radicular pain 2 years following intrathecal pump implantation with review of arachnoiditis.
Implanted intrathecal drug delivery pumps are now regularly used for the treatment of chronic benign and cancer-related pain that is refractory to conservative treatment methods. In most cases, the pumps are successful at reducing the intensity of pain and improving function and quality of life for pain patients. Limited studies have discussed the complications associated with intrathecal pump placement. ⋯ The entire IDDS was removed including the retained Touhy introducer needle. The patient later went on to receive a successful spinal cord stimulator trial and implantation with moderate relief of her chronic pain.
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To examine patterns of interindividual variability in experimental pain responses emerging from multiple experimental pain measures in a racially/ethnically diverse sample of healthy adults and to examine the association between the derived phenotype profiles with demographic, psychological, and health-related measures. ⋯ Our findings highlight the importance of phenotyping individuals to account for interindividual differences in pain responses. Our findings also replicate previously reported pain phenotypes, which are not solely related to demographic, psychosocial, or health-related factors in our healthy participants. Future studies designed to elucidate the biological underpinnings of pain sensitivity profiles would be of substantial value.
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Neuropathic symptoms are reported in 16-55.6% of patients with back pain. Studies were performed in various populations; however, none focused on older adults. The aim of the study was to assess prevalence of neuropathic pain in older adults with back pain. ⋯ In older adults with back pain presenting with a new episode in primary care, prevalence of neuropathic pain is low and seems to be associated with pain radiating below the knee, use of paracetamol, and higher body mass index.
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To examine the temporal stability of conditioned pain modulation (CPM), formerly termed diffuse noxious inhibitory controls, among a sample of patients with chronic pain. The study also examined the factors that might be responsible for the stability of CPM. ⋯ Our findings suggest that CPM paradigms possess sufficient reliability to be incorporated into bedside clinical evaluation of patients with chronic pain, but only among women. The lack of CPM reproducibility/stability observed among men places limits on the potential use of CPM paradigms in clinical settings for the assessment of men's endogenous pain-inhibitory function.
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Although chronic pain is a source of work-related disability, relatively little research has addressed the psychological factors that differentiate individuals in chronic pain who leave the workforce from those who remain on the job despite their pain. ⋯ Results revealed both demographic and attitudinal predictors of continued employment and highlight the value of harnessing insights from the psychology of work engagement to better understand the processes underlying pain presenteeism. Interventions designed to keep persons with pain in the active work force should build upon and extend the present findings.