British Journal of Pain最新文献

Background: Fibromyalgia Syndrome (FMS) is highly prevalent with a significant associated morbidity and socioeconomic burden. Effective treatments for FMS remain elusive with pharmacological management (including use of opioids) often proving ineffective. There is a need to develop accessible, innovative management approaches to improve patient care.Virtual reality (VR) interventions have shown evidence of efficacy in the management of acute pain and chronic low back pain, but their feasibility in FMS has not hitherto been explored.

Methods: This feasibility study investigates the use of four different VR systems, four interactive VR activities and two virtual environments in patients with FMS. Acceptability (including adverse effects) and study engagement were the main outcomes investigated. Clinical outcome data on pain and mood were also collected to gather preliminary information for future studies.

Results: The results demonstrated good feasibility across VR systems, activities and virtual environments with high levels of acceptability, low frequency of adverse effects, and positive perceptions of VR in patients with FMS. Reporting of adverse effects (including fatigue) varied across different VR components, with system comfort and virtual environmental design being particularly important.

Conclusions: The findings increase our confidence with respect to the feasibility of using VR in people with FMS, help to inform future randomised controlled trials and emphasise the importance of tailored interventional design for future VR therapeutics.

Background: Chronic pain poses a significant public health challenge. We present the global and regional data on Prevalence, Incidence and Years Lived with Disability (YLDs) for Chronic pain from the Global burden of disease (GBD) study 2019 data and analyze their associations with Socio-demographic index (SDI), age, and gender, and the future trends from 2020 to 2035.

Methods: Regional trends in the burden of chronic pain and its association with age, gender, and SDI were assessed from 1990 to 2019. Joinpoint analysis was employed to describe trends in chronic pain burden across different SDI regions. Additionally, the Bayesian Age-Period-Cohort model (BAPC) was used for predicting future trends. Age-standardized rates (ASRs) of prevalence, incidence, and YLDs were employed to quantify the burden of chronic pain.

Results: Between 1990 and 2019, a significant increase was observed in global prevalence and YLDs rates of chronic pain. Higher rates were found among females, whereas a faster rise was noted among males. Notably, Low Back Pain (LBP) and Migraine accounted for predominant YLDs globally, particularly among those aged 75 and above. A notable prevalence of Tension-type Headache (TTH) was observed among younger populations. Furthermore, ASRs for chronic pain were highest in high-SDI regions. Projections suggest an increase in headache ASRs globally for both genders from 2020 to 2035.

Conclusion: From 1990 to 2019, the global burden of chronic pain increased significantly, with projections indicating a continued rise in headache burden over the next 15 years, underscoring the need for heightened attention to these issues.

Background: Research has demonstrated the effectiveness of Animal-Assisted Therapy, usually involving dogs, as a way to reduce pain in inpatient and outpatient populations. Here two studies investigate the effectiveness of interacting with horses for reducing human acute pain perception.

Methods: In Study 1, a blood-pressure cuff was used to administer acute ischaemic pain to 70 adult participants, who were allocated to one of three groups: Equine Assisted Psychotherapy (EAP), Horse Interaction without EAP (HI), and a Control (no horses present). All participants engaged in an activity (finding a horse treat) in a large, enclosed arena. The dependent variable was the subjective pain rating (scale 0-10) of the participant in response to moderate pain induced pre- and post-activity. In Study 2, 53 adult participants were recruited and allocated to either an Equine Assisted Learning (EAL) Group or a Control Group. The same paradigm was used. Following the activity sessions, qualitative data was elicited from the participants regarding their insights and feelings. It was hypothesized that any interaction with horses would significantly reduce an individual's perception of pain.

Results: In both studies, planned paired-samples t-tests showed significant reductions in pain ratings from pre-activity to post-activity in the EAL, EAP and HI groups (large and medium effect sizes) but not the Control groups. Thematic analysis of the qualitative responses showed an overwhelmingly positive array of responses from those who interacted with the horses, for example, feeling relaxed and happy during the activity.

Conclusion: Interactions with horses can reduce acute pain perception. Distraction, physiological changes, and positive emotions are discussed as possible underlying mechanisms. It remains to be seen how this could be more widely applied, for example, in relation to chronic pain.

Introduction: The study aimed to validate the effectiveness of Wrist and Ankle Acupuncture (WAA) in attenuating moderate to severe postoperative pain following Functional Endoscopic Sinus Surgery (FESS).

Methods: Participants were randomly allocated into a treatment group (n = 57) and a control group (n = 58). The treatment group underwent WAA treatment, while the control group received sham acupuncture treatment. The Numeric Rating Scale (NRS) was employed to assess postoperative pain. The sleep efficiency, the amount of rescue medication, and the adverse events were also evaluated for both groups.

Results: A significant immediate reduction in NRS scores was observed in the treatment group (p < .01). At 2, 4, 8, 22, and 24 h after first treatment, pain intensity decreased in the WAA group compared with the control group (p < .01). Moreover, the WAA group demonstrated superior sleep efficiency relative to the control group on the night after surgery (p < .01). And the mean number of rescue tablets used on the WAA group was obviously lower than the control group (p < .01). There were no serious adverse events in both groups, and all adverse events completely disappeared within 3 days.

Conclusion: WAA effectively alleviated postoperative discomfort associated with nasal packing subsequent to FESS and enhanced sleep quality during the postoperative night. The anatomical superficiality of the acupuncture points employed reduces the risk of adverse events while yielding effective analgesic results, thus validating its suitability for clinical application.

Background: Pain from rib fractures often requires inpatient management with opioid medication. The need for ongoing opioid prescriptions following hospital discharge is poorly understood. Harms associated with long-term opioid use are generally accepted. However, a deeper understanding of current prescribing patterns in this population at-risk is required.

Methods: A retrospective cohort of adult patients hospitalised in Queensland, Australia between 2014 and 2015 with rib fractures (ICD-10-AM: S22.3, S22.4, S22.5), was obtained from the Community Opioid Dispensing after Injury (CODI) study, which includes person-linked hospitalisation, mortality and community opioid dispensing data. Data were extracted 90-days prior to the index-hospitalisation and 720-days after discharge. Factors associated with long-duration (>90 days cumulatively) and increased end-dose were examined using multivariable logistic regressions, odds ratios (OR), and 95% confidence intervals (95% CI).

Results: In total, 4306 patients met the inclusion criteria, and 58.8% had opioids dispensed in the community within 30 days of hospital discharge. 23.6% had long-duration dispensing and 13.7% increased opioid end-doses. Pre-injury opioid use was most associated with long-duration (OR = 12.00, 95% CI 8.99-16.01) and increased end-dose (OR = 9.00, 95% CI 6.75-12.00). Females and older persons had higher odds of long-duration dispensing (Females OR = 1.75, 95% CI 1.38-2.22; Age 65+ OR = 1.86, 95% CI 1.32-2.61). Injury severity and presence of concurrent injuries were not statistically significantly associated with duration or dose (p > .05). Subsequent hospitalisations and death during the follow-up period had statistically significant associations with long-duration and increased end-dose (p < .001).

Conclusion: Opiate prescribing following rib fractures is prolonged in older, and female patients, beyond the traditionally reported recovery time frames requiring analgesia. Previous opioid use (without dependence) is associated with long-duration opioid use and increased end-dose in rib fracture patients. These results support the need for a collaborative health system approach and individualised strategies for high-risk patients with rib fractures to reduce long-term opiate use.

Level of evidence: Level III, Prognostic/Epidemiological.

Background: Elective lumbar spine surgery is increasingly being implemented to treat patients with specific low back pain. However, approximately 30% of patients continue to have long-term pain and disability after surgery.

Objective: The aim of this study was to systematically review the literature on the effectiveness of pre-surgical rehabilitation (prehab) alone or in combination with usual care versus usual care on patient-oriented outcomes and health-related costs following elective lumbar spine surgery.

Data sources: Electronic databases from MEDLINE, CINAHL, EMBASE, and AMED were systematically searched from their inception to November 2022.

Study selection: Randomized controlled trials that examined adult (age >18 years) prehab programs and evaluated one or more outcomes of interest were included in this review.

Data extraction: In pairs, six reviewers independently conducted a risk-of-bias assessment and extracted outcome data from included studies, in accordance with the Template for Intervention Description and Replication (TIDieR). A meta-analysis was conducted when trials were homogeneous.

Data synthesis: A total of eight trials (n = 739 participants), reported in 13 different manuscripts, were eligible for inclusion. Exercise prehab interventions are superior to usual care for disability at 3-month (MD: -2.56, 95% CI -4.98 to -0.15), back pain at 6-month (MD: -6.65, 95% CI -13.25 to -0.05), and health-related costs (MD: €2572.8, 95% CI: €1963.0 to €3182.5). CBT prehab interventions seem to be superior to usual care for back pain at 3-month (MD: -7.3, 95% CI: -14.5 to -0.05). Individual trials showed that education prehab interventions may be superior to usual for back pain at 1-month post-operative (MD: 12.3, 95% CI: 0.9 to 23.7).

Limitations: Overall, the inclusion of heterogeneous trials (e.g., diagnosis, types of surgery, dosage, content, and duration of interventions) with small sample sizes leads to inconclusive and very low certainty of effect estimates.

Conclusion: The present systematic review has brought to light the dearth of high-quality evidence in support of prehab interventions for patients undergoing lumbar spine surgery. Given the uncertainty surrounding the results obtained from low-quality randomized controlled trials, it is currently not feasible to provide recommendations for clinical practice.

Background: Many pain clinics encourage/mandate attendance at introductory group pain education sessions. Despite high non-attendance rates, no studies have examined consumer-reported reasons for non-attendance. Purpose: The aim of this study was to better understand why consumers fail to attend their pain education session. Research Design and Study Sample: We attempted to contact all non-attendees of our South Australian tertiary pain unit's group pain education sessions from February-August 2020. Of the 23 we could reach, 10 completed semi-structured telephone interviews. Data Analysis: Audio-recordings were transcribed verbatim and subject to thematic content analysis. Results: 'Attendance barriers' themes highlighted the complex lives of non-attendees. Pain prevented them from leaving their house, deterred them from travel to, and sitting through, the entire session. Competing responsibilities including other medical appointments and comorbidities were commonly mentioned. Most explicitly stated their dislike for the group format. Other factors included fear of the unknown nature of the session, not wanting education, and wanting a doctor's appointment. Several participants expressed a distrust of medical professionals, and perceived the benefits of attending as not exceeding the perceived time, money and pain associated. Conclusions: Pain management may not be individuals' main priority and attendance may only occur when other personal issues are addressed. Significant non-attendance rates may be unavoidable. Providing additional session detail may reduce misconceptions and allay concerns. Educating referring GPs may assist consumers to make an informed decision regarding attending. Online sessions may address various barriers and prove a more cost-effective alternative.

Perspective: This article examines consumers' reasons for non-attendance at pre-clinic group education programs. Findings could be used by Pain Units to shape patient and GP communications regarding such programs, as well as program content and format, to improve patient acceptance and program attendance, and potentially engagement with self-management.

Background: Perioperative opioid stewardship programs are increasingly being introduced to guide responsible use around the time of surgery to reduce opioid-related harm to patients. However, patient experiences of perioperative opioid stewardship programs are underexplored.

Methods: We designed a mixed methods study to explore patients' experiences of perioperative opioid stewardship in the post-operative period following spine surgery. We performed evaluative action research, combining quality improvement and ethnographic methodologies. Our quantitative methods were retrospective medical record review and targeted survey research. Our qualitative methods were online focus groups. The quantitative data were analysed using descriptive statistics, chi-square, and rank sum testing. The focus group data underwent inductive thematic analysis.

Results: Our spine surgery cohort for the four-month study period included 101 patients. The median total discharge opioid dispensed was 75 mg [interquartile range 75-150 mg], with 30% of patients prescribed modified release opioids on discharge. A subset of patients (N = 14) participated in the online focus groups. The key themes that emerged from these sessions were (1) Supportive care delivery and rescue mechanisms were universally important to patient participants, providing great reassurance during their recovery; (2) Participants commonly believed opioid analgesia had an important role in recovery following spine surgery. Some patients were keen to dispose of surplus opioids whilst others intended to retain them; (3) Opioid analgesia access was variable, but established community prescriber relationships were important for post-discharge opioid re-prescription, and (4) The key future improvement suggestions included routine post-discharge contact and enhanced communication options back to the hospital if needed.

Discussion and conclusions: Our mixed methods approach provided rich insights into the pain and opioid analgesia experiences of patients following spine surgery. These insights are useful when seeking to optimise perioperative opioid stewardship programs including better meeting the needs of patient consumers. Limitations included potential response and selection bias for the online focus groups towards younger, higher socioeconomic status patients.

Background: Chronic pain is common and associated with disruptions in quality of life (QoL) and psychosocial functioning. These issues are particularly pronounced in veterans, although data in this regard primarily come from the United States Veterans Affairs System, meaning less is known regarding veterans of other countries and regions. The present study evaluated veterans living in Northern Ireland (NI), a region with historic high rates of both chronic pain and psychosocial difficulties associated with the decades-long period of civil and military conflict preceding the 1999 armistice (the Good Friday Agreement). Unique to the Northern Ireland military operation was the initiation of Home Service battalions comprised of local recruits, a role with increased risk due to the conflict's nature and the fact that they were serving as a military and security presence in their home region.

Methods: A cross-sectional assessment of veterans living in Northern Ireland (N = 722) provided details of service type (Home Service vs other service), current health conditions (including chronic pain), and current psychosocial functioning (including physical and mental health QoL, anxiety, depression, and post-traumatic stress disorder [PTSD] symptoms).

Results: Findings indicated that those with chronic pain had worse QoL, anxiety, depression, and PTSD. Those with chronic pain were also more likely to have served in the Home Services, be unemployed, and be receiving disability payment. Contrary to hypotheses, there was no interaction between chronic pain and service type.

Conclusions: These results extend previous work with veterans to the unique circumstances of a post-conflict military that engaged in operations within its own country and underscore the need for coordinated, efficacious interventions for co-morbid chronic pain and anxiety, depression, and PTSD.