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Painful diabetic neuropathy (PDN) is a progressive chronic pain condition that significantly affects the quality of life of patients with long-standing diabetes mellitus. In addition to pain reduction, spinal cord stimulation (SCS) was recently associated with sensory improvements. No explanation has yet been offered to explain these findings. Insensate feet limit activities of daily living and may result in debilitating sequelae.
Learn More >Migraine with aura (MA) accounts for up to 10% of "stroke mimics" and can present cerebral perfusion abnormalities. We aimed to compare perfusion-CT (PCT) findings in acute-onset MA mimicking an ischemic stroke with those observed in transient ischemic attack (TIA).
Learn More >Remotely delivered pain management programmes have been offered in place of in-person programmes by many chronic pain services since the onset of the COVID-19 pandemic. There is a lack of evidence regarding the acceptability of these programmes. In this evaluation, we have explored patients' acceptability of a remotely delivered pain management programme for patients with persistent musculoskeletal pain.
Learn More >Pain education initiatives are typically targeted at health professionals, with less attention being placed on the education of other target audiences. Recent curriculum changes across undergraduate liberal studies degree programs at The University of Sydney presented an opportunity to develop an online course entitled Health Challenges: Pain and Society, which was aimed at a non-traditional target audience. To promote student engagement about the problem of pain for society, the course was designed using the Community of Inquiry framework. This paper reports on an Educational Design Research study, investigating the effectiveness of the course in engaging students across two cohorts, in 2019 and 2020. Learning analytics were collected from the Learning Management System each year. The level of student engagement in non-assessable tasks was measured using multiple linear regression. Students' degree type and majors were recorded. In 2020, the quality of student workbook responses was recorded. In both cohorts, engagement with the workbooks was a predictor of academic achievement. In 2020, a significant interaction effect between quantity and quality of engagement was observed. Our findings highlight the importance of designing online learning to facilitate successful engagement for non-traditional target audiences about the issue of chronic pain for society.
Learn More >Chronic pain is undertreated in people with Alzheimer's disease (AD) and better understanding of the underlying mechanisms of chronic pain in this neurodegenerative disease is essential. Neuropathic pain and AD share a significant involvement of the peripheral immune system. Therefore, we examined the development of nerve injury-induced allodynia in TASTPM (APPsweXPS1.M146V) mice and assessed monocytes/macrophages at injury site. TASTPM developed partial allodynia compared to WT at days 7, 14 and 21 days after injury, and showed complete allodynia only after treatment with naloxone methiodide, a peripheralized opioid receptor antagonist. Since macrophages are one of the sources of endogenous opioids in the periphery, we examined macrophage infiltration at injury site and observed that CD206/MHCII cells were more numerous in TASTPM than WT. Accordingly, circulating TASTPM Ly6C (classical) monocytes, which are pro-inflammatory and infiltrate at the site of injury, were less abundant than in WT. In experiments, TASTPM bone marrow-derived macrophages showed efficient phagocytosis of myelin extracts containing amyloid precursor protein, acquired CD206/MHCII phenotype, upregulated mRNA expression of proenkephalin () and accumulated enkephalins in culture media. These data suggest that in TASTPM nerve-injured mice, infiltrating macrophages which derive from circulating monocytes and may contain amyloid fragments, acquire M2-like phenotype after myelin engulfment, and release enkephalins which are likely to inhibit nociceptive neuron activity via activation of opioid receptors.
Learn More >Antiretroviral therapy has significantly reduced morbidity and mortality in people with HIV. Despite being virally suppressed, sleep disturbances, chronic pain, and neurocognitive impairments persist which can negatively impact quality of life for people with HIV. This article presents relevant literature related to sleep disturbances and chronic pain in people with HIV. The potential impact of these comorbidities on cognition is discussed with implications for managing HIV-associated neurocognitive disorder (HAND).
Learn More >Postoperative thoracic surgery is often accompanied by severe pain, and opioids are a cornerstone of postoperative pain management, but their use may be limited by many adverse events. Several studies have shown that the perioperative application of esketamine adjuvant therapy can reduce postoperative opioid consumption. However, whether esketamine has an opioid-sparing effect after thoracic surgery is unclear.
Learn More >The primary aim was to assess whether preoperative health-related quality of life (HRQoL) was associated with postoperative mortality following total hip arthroplasty (THA) and knee arthroplasty (KA). Secondary aims were to assess whether patient demographics/comorbidities and/or joint-specific function were associated with postoperative mortality.
Learn More >Patient-reported outcome measures (PROMs) are tools to screen a population, to monitor the subjective progress of a therapy, to enable patient-centred care and to evaluate the quality of care. The QUALITOUCH Activity Index (AI) is such a tool, used in physiotherapy. This study aimed to provide reference values for expected AI outcomes.
Learn More >Although several studies and reports have shown the potential analgesic use of serotonergic psychedelics in cancer pain, phantom limb pain and cluster headache, evidence supporting their use for chronic pain is still limited. The past years have seen a considerable renewal of interest toward the therapeutic use of these compounds for mood disorders, resulting in a marked increase in the number of people turning to psychedelics in an attempt to self-medicate a health condition or improve their wellbeing. In western countries particularly, this population of users overlaps substantially with chronic pain sufferers, representing a unique opportunity to evaluate the effects these compounds have on pain and wellbeing. Here, we report results from an online survey conducted between August 2020 and July 2021 in a population of 250 chronic pain sufferers who had experience with psychedelics, either in microdoses (small sub-hallucinogenic doses), macrodoses (hallucinogenic doses), or both. Macrodoses, while less often used for analgesic purposes than microdoses, were reported to induce a higher level of pain relief than both microdoses and conventional pain medications (including opioids and cannabis). Although the effects were weaker and potentially more prone to expectation bias than with macrodoses, our results also suggested some benefits of psychedelics in microdoses for pain management. The reported analgesic effect appeared unrelated to mood improvements associated with psychedelic use, or the advocacy of psychedelic use. Taken together, our findings indicate interesting potential analgesic applications for psychedelics that warrant further clinical research.
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