Telehealth delivery of adapted CBT-I for insomnia in chronic pain patients: a single arm feasibility study.

Objectives: A large proportion of individuals with chronic pain experience insomnia-related symptoms which can be persistent in nature, and negatively impact one's quality of life. This single arm trial aimed to investigate the feasibility and preliminary efficacy of CBT-I, adapted for people with chronic musculoskeletal pain, delivered via telehealth. Methods: We conducted a single arm feasibility trial in which 10 adult women (M age = 50.76 years, SD = 8.03 years) with self-reported insomnia and a diagnosed chronic musculoskeletal chronic pain received six CBT-I individual treatment sessions over 6-10 weeks. Treatment was delivered via telehealth. Participants completed weekly sleep diaries, and self-reported measures of insomnia, pain, anxiety and depression pre-treatment, post-treatment, and one-month follow-up. Results: The trial yielded, high levels of compliance with intervention protocols, and affirmative feedback on satisfaction which demonstrated feasibility. The enrolment rate into the study was 37% (27 participants screened, 10 participants enrolled). The intervention was associated with statistically and clinically meaningful improvements in self-reported insomnia severity. There were statistically significant improvements in sleep efficiency, wake after sleep onset, sleep onset latency, anxiety and depression. Conclusion: Adapted CBT-I delivered via telehealth may be a feasible, acceptable, and efficacious therapeutic approach for individuals with co-existent sleep and chronic pain. Future trials should adopt a randomized design against usual care.

Acute impact of a national lockdown during the COVID-19 pandemic on wellbeing outcomes among individuals with chronic pain.

Changes to wellbeing in a community-based sample of 638 adults with non-malignant chronic pain were assessed during a period of mandated lockdown measures in the UK to control the COVID-19 outbreak. Participants completed an online survey pre-lockdown and were followed up during lockdown. Multivariate analysis demonstrated that decreased ability to self-manage pain, restricted access to healthcare and increased dependence on others were associated with negative wellbeing outcomes related to sleep, anxiety and depression. Essential but non-urgent services are required during periods of lockdown to maintain independence and self-management in order to preserve wellbeing in this population.

Exploring the feasibility and acceptability of a sleep wearable headband among a community sample of chronic pain individuals: An at-home observational study.

Background: Chronic pain conditions affect up to one third of the adult population in the United Kingdom. Sleep problems are prevalent and negatively impact quality of life. Lack of standardised tools for routine screening and assessment of sleep changes have been a barrier for sleep management. Novel sleep wearables offer an exciting and accessible way to measure sleep but have not been tested outside of the consumer-led landscape and are not commonly used in research and clinical settings. Aims: The study aimed to explore the feasibility and acceptability of a sleep monitoring headband (Dreem 2) utilising EEG technology and accompanying smartphone application among a cohort of adults with chronic pain. Results: Twenty-one adults (81% women) completed a one-week home sleep study using a sleep headband and accompanying app. Ninety per cent of participants met the pre-defined requirement of two-night's sleep recording. All participants recorded one night of sleep data via the sleep headband. The majority (76%) of participants were satisfied with the sleep study, and 86% of participants were willing to wear the headband longer than the 2-night minimum requirement. Finally, 76% reported the headband as 'somewhat' or 'extremely' comfortable whist awake; 57% rated the headband as comfortable during sleep. Conclusion: The Dreem 2 headband appears to be a feasible and acceptable means of collecting sleep measurements among individuals with chronic pain, despite common sleep disturbances. These devices may have utility for screening, assessment and monitoring in research and practice. Further research is needed to provide guidelines and training for integration.

The 2021 NICE guidelines for assessment and management of chronic pain: A cross-sectional study mapping against a sample of 1,000* in the community.

Objectives: To characterise the prevailing pharmacological and non-pharmacological pain management strategies among adults with chronic pain, comparing these against the newly published NICE guidelines NG-193, and examine these pre-NG-193 pain management strategies in relation to pain severity, pain interference, sleep quality and mental health outcomes. Design: This study was conducted using a cross-sectional online survey study design. Setting: This study was conducted on a community-dwelling cohort. Participants: Adults aged 18+, living in the UK, with diagnosis of chronic pain by a health care professional. Main outcome measures: Primary outcomes were characterisation of the pain management strategies utilised. Secondary outcomes were related to pain severity, pain interference, sleep quality, depression and anxiety via validated self-report measures. Results: Several strategies were employed by respondents to manage their chronic pain condition including physical therapy, exercise, psychological therapy and pharmacological therapy. The data also indicated a high level of joint-care planning among patients and their clinicians. Some group differences were found in relation to pain, sleep and mental health outcomes. Conclusion: This study set a comparative starting baseline to which the efficacy of the NG-193 may be compared in future years. There is evidence that NICE recommendations are being followed for the management of chronic primary pain conditions; however, pharmacological use of opioid drugs is still reported by 47%. Despite the confirmed evidence in this study of small efficacy of chronic pain by pharmacological agent, the reduction in the use of pain relief medications be it over the counter medications or prescription opioids, as recommended by NG-193, may be slow to be adopted. The data suggest that more care provision is needed to meet the recommendations around pharmacological management and review.

Good Sleep Quality Improves the Relationship Between Pain and Depression Among Individuals With Chronic Pain.

Individuals with chronic pain often experience co-existing sleep problems and depression-related states. Chronic pain, sleep problems, and depression interrelate, and have been shown to exacerbate one another, which negatively impacts quality of life. This study explored the relationships between pain severity, pain interference, sleep quality, and depression among individuals with chronic pain. Secondly, we tested whether sleep quality may moderate the relationship between pain and depression. A cross-sectional survey was completed by 1,059 adults with non-malignant chronic pain conditions (M age 43 years, 88% identified as women) and collected measures related to pain severity, pain interference, sleep quality, and depression. Multiple regression analyses found that pain severity, pain interference, and sleep quality are all significantly associated with depression. Secondly, moderated regression analyses revealed that sleep quality moderates the relationship between pain interference and depression among individuals with chronic pain such that good sleep quality attenuates the effect of pain interference on depression, and poor sleep quality amplifies the effect of pain interference on depression. These findings suggest that sleep quality may be a relevant therapeutic target for individuals with chronic pain and co-existing depression.

Pain expressiveness and altruistic behavior: an exploration using agent-based modeling.

Predictions which invoke evolutionary mechanisms are hard to test. Agent-based modeling in artificial life offers a way to simulate behaviors and interactions in specific physical or social environments over many generations. The outcomes have implications for understanding adaptive value of behaviors in context. Pain-related behavior in animals is communicated to other animals that might protect or help, or might exploit or predate. An agent-based model simulated the effects of displaying or not displaying pain (expresser/nonexpresser strategies) when injured and of helping, ignoring, or exploiting another in pain (altruistic/nonaltruistic/selfish strategies). Agents modeled in MATLAB interacted at random while foraging (gaining energy); random injury interrupted foraging for a fixed time unless help from an altruistic agent, who paid an energy cost, speeded recovery. Environmental and social conditions also varied, and each model ran for 10,000 iterations. Findings were meaningful in that, in general, contingencies that evident from experimental work with a variety of mammals, over a few interactions, were replicated in the agent-based model after selection pressure over many generations. More energy-demanding expression of pain reduced its frequency in successive generations, and increasing injury frequency resulted in fewer expressers and altruists. Allowing exploitation of injured agents decreased expression of pain to near zero, but altruists remained. Decreasing costs or increasing benefits of helping hardly changed its frequency, whereas increasing interaction rate between injured agents and helpers diminished the benefits to both. Agent-based modeling allows simulation of complex behaviors and environmental pressures over evolutionary time.

Experimental insights into age-exacerbated cognitive dysfunction after peripheral surgery.

Here I comment on the recent contribution by Barrientos et al. J. Neurosci. 32, 14641-14648 (2012) addressing treatment possibilities for surgery-induced cognitive dysfunction. It has been over 15 years since the publication of a landmark study that indicated age as a major risk factor for postoperative cognitive dysfunction (POCD) (Moller et al., Lancet 351, 857-861 1998). With increasing life expectancy, surgical procedures conducted in elderly persons are becoming more common. The prevalence of POCD may mean that some patients will exchange the incapacitating condition that led them to surgery in the first instance for another such condition, which has been created by the surgical procedure itself. The report by Barrientos and collaborators (2012) is a timely and welcome study that further examines treatment possibilities for surgery-induced cognitive dysfunction. Future studies should address issues such as intensity and onset of inflammation within the brain and additional treatments possibilities beyond IL-1-ra.