Healthcare Professionals' Perceptions of and Attitudes towards a Standardized Content Description of Interdisciplinary Rehabilitation Programs for Patients with Chronic Pain-A Qualitative Study.

Interdisciplinary pain rehabilitation (IPR) is a recommended treatment for people with chronic pain. An inadequate description of the content of IPR programs makes it difficult to draw conclusions regarding their effects. The purpose of this study was to describe the perceptions and attitudes of healthcare professionals toward a content description of IPR programs for patients with chronic pain. Individual interviews with healthcare professionals (n = 11) working in IPR teams in Sweden were conducted between February and May 2019. Analysis of the interviews resulted in a theme: interdisciplinary pain rehabilitation is a complex intervention, with three categories: limitations in the description of IPR programs; lack of knowledge about IPR and chronic pain; and facilitating and hindering factors for using the content description of IPR programs. Conclusion: Healthcare professionals perceived that IPR programs could be described through a general content description. A general content description could enhance the quality of IPR programs through a better understanding of their content and a comparison of different IPR programs. Healthcare professionals also expressed the importance of a content description being a guide rather than a steering document.

Prevalence of Long-Term Opioid Therapy in a Chronic Non-Cancer Pain Population Attending a University-Based Tertiary Pain Clinic in Sweden: A Cross-Sectional Study.

BACKGROUND: Opioid therapy is a common treatment for chronic pain, despite accumulating evidence regarding harm and a lack of data to support the efficacy of long-term treatment. The prevalence of opioid therapy in Swedish patients with chronic non-cancer pain is unknown. The aim of this study was to assess a short-term period prevalence of prescribed opioid-use and long-term opioid therapy in a population with complex chronic non-cancer pain. METHODS: The study population comprised 1,613 patients with chronic non-cancer pain referred to a university-based tertiary pain clinic in Sweden during 2015-17. Data from a 360-day period prior to consultation were extracted from the Swedish Quality Registry for Pain Rehabilitation (SQRP) and Swedish Prescribed Drug Register (SPDR). Milligram morphine equivalents per day (MME/day) for dispensed opioids were analysed for a 90-day period preceding consultation, and long-term opioid therapy was determined for the entire 360-day period. RESULTS: The 90-day prevalence was 38% (95% confidence interval (95% CI) 36.0-40.8%) and 360-day prevalence was 22.3% (n=360, 95% CI 20.4-24.4%). CONCLUSION: Prescribing rates of opioids in a Swedish population with complex non-cancer chronic pain were high; 2 in 5 patients were dispensed an opioid within a 90-day period prior to consultation.

Prolonged exposure for pain and comorbid PTSD: a single-case experimental study of a treatment supplement to multiprofessional pain rehabilitation.

OBJECTIVES: It is unclear how to address PTSD in the context of chronic pain management. Here we examine the potential benefits of an addition of prolonged exposure (PE) therapy for PTSD for adults attending multidisciplinary CBT for chronic pain. METHODS: Four adults seeking treatment for chronic pain from a specialized pain rehabilitation service were offered PE for PTSD using a replicated, randomized, single-case experimental phase design, prior to commencing a 5-week multidisciplinary CBT program for chronic pain. Pre-, post-, follow-up, and daily measures allowed examination of PTSD and pain outcomes, potential mediators, and the trajectory of these outcomes and potential mediators during the subsequent pain-focused CBT program. RESULTS: Visual inspection of the daily data demonstrated changes in all outcome variables and potential mediators during the PE phase. Changes came at different times and at different rates for the four participants, highlighting the individual nature of putative change mechanisms. Consistent with expectation, PE produced reliable change in the severity of PTSD symptoms and trauma-related beliefs for all four participants, either by the end of the PE phase or the PE follow-up, with these gains maintained by the end of the 5-week pain-focused CBT program. However, few reductions in pain intensity or pain interference were seen either during the PE phase or after. CONCLUSIONS: Although "disorder specific" approaches have dominated the conceptualising, study, and treatment of conditions like PTSD and chronic pain, such approaches may not be optimal. It may be better instead to approach cases in an individual and process-focused fashion. ETHICAL COMMITTEE NUMBER: 2013/381.

Variability in patient characteristics and service provision of interdisciplinary pain rehabilitation: A study using the Swedish national quality registry for pain rehabilitation.

OBJECTIVE: To describe the organization, content and dosage of interdisciplinary pain rehabilitation, and the differences in degree of severity of problems of patients admitted to clinical units reporting to a Swedish national quality pain registry, grouped according to unit size and possible affiliation with a university hospital. METHODS: Reports from 31 out of 39 clinical units in Sweden, on inclusion processes, organization, content and dosage of interdisciplinary pain rehabilitation, and patient-reported data from a Swedish national quality pain registry at assessment for interdisciplinary pain rehabilitation were analysed. RESULTS: the number of patients treated annually at each unit ranged from 3 to 340. In 17 units, teams comprised 5 professionals. Dosage of interdisciplinary pain rehabilitation ranged from 20-180 h per patient in total. Patients at the university-hospital units scored the highest levels of symptoms and lowest levels of health-related quality of life. Units used similar sets of inclusion criteria, and several treatments, such as education, self-training and psychological interventions, were used by most units. CONCLUSION: When interpreting outcome data from registries, aspects other than rehabilitation outcomes must be considered. The interpretation of outcomes from quality registries would be facilitated if data, in addition to assessments and patient-reported outcomes, also includes standardized descriptions of the reporting clinical units.

Evaluation of a multimodal pain rehabilitation programme in primary care based on clinical register data: a feasibility study.

AIM: Investigate the feasibility of identifying a well-defined treatment group and a comparable reference group in clinical register data. BACKGROUND: There is insufficient knowledge on how to avert neck/back pain from turning chronic or to impair work ability. The Swedish Government implemented a national multimodal rehabilitation (MMR) programme in primary care intending to promote work ability, reduce sick leave and increase return to work. Since randomised control trial data for effect is lacking, it is important to evaluate existing observational data from clinical settings. METHODS: We identified all unique patients with musculoskeletal pain (MSP) diagnoses undergoing the MMR programme in primary care in the Skåne Health care Register (n = 2140) during 2010-2011. A reference cohort in primary care (n = 56 300) with similar MSP diagnoses, same ages and the same level of sick leave before baseline was identified for the same period. The reference cohort received ordinary care and treatment in primary care. The final study group consisted of 603 eligible MMR patients and 2874 eligible reference patients. Socio-economic and health-related baseline data including sick leave one year before up to two years after baseline were compared between groups. FINDINGS: There were significant socio-economic and health differences at baseline between the MMR and the reference patients, with the MMR group having lower income, higher morbidity and more sick leave days. Sick leave days per year decreased significantly in the MMR group (118-102 days, P < 0.001) and in the reference group (50-42 days, P < 0.001) from one year before baseline to two years after. CONCLUSIONS: It was not feasible to identify a comparable reference group based on clinical register data. Despite an ambitious attempt to limit selection bias, significant baseline differences in socio-economic and health were present. In absence of randomised trials, effects of MMR cannot be sufficiently evaluated in primary care.

Treatment outcomes in group-based cognitive behavioural therapy for chronic pain: An examination of PTSD symptoms.

BACKGROUND: The relevance of post-traumatic stress disorder (PTSD) symptoms to outcomes of cognitive behavioural therapy (CBT) for chronic pain is unclear. This study examines whether (a) traumatic exposure or the severity of PTSD symptoms at pre-treatment predicts the outcomes (pain intensity/interference), (b) participation in this treatment is associated with reduced PTSD symptoms and (c) any observed changes in PTSD symptoms are mediated by changes in psychological mechanisms that have been shown to be of importance to PTSD and chronic pain. METHODS: Participants were 159 chronic pain patients who were consecutively admitted for a multidisciplinary, group-based CBT program at the Pain Rehabilitation Unit at Skåne University Hospital. A self-report measure of traumatic exposure and PTSD symptoms was administered before and after treatment, and at a 12-month follow-up, along with measures of depression, anxiety, pain intensity, pain interference, psychological inflexibility, life control and kinesiophobia. RESULTS: Traumatic exposure and PTSD symptom severity did not predict pain intensity or interference at 12-month follow-up. There were no overall significant changes in PTSD symptom severity at post-treatment or follow-up, but 24.6% of the participants showed potential clinically significant change at follow-up. Psychological inflexibility mediated the changes that occurred in PTSD symptoms during treatment. CONCLUSIONS: Neither traumatic exposure nor baseline symptoms of PTSD predicted the treatment outcomes examined here. Despite improvements in both comorbid depression and anxiety, participation in this pain-focused CBT program was not associated with improvements in comorbid PTSD. To the extent that changes in PTSD symptoms did occur, these were mediated by changes in psychological inflexibility during treatment. SIGNIFICANCE: Pain-focused CBT programs yield clinically meaningful improvements in pain and comorbid symptoms of depression and anxiety, but may have little effect on comorbid PTSD. This raises the issue of whether current pain-focused CBT programs can be modified to improve outcomes for comorbid conditions, perhaps by better targeting of psychological flexibility, and/or whether separate treatment of PTSD may be associated with improved pain outcomes.

Chronic pain patients can be classified into four groups: Clustering-based discriminant analysis of psychometric data from 4665 patients referred to a multidisciplinary pain centre (a SQRP study).

OBJECTIVE: To subgroup chronic pain patients using psychometric data and regress the variables most responsible for subgroup discrimination. DESIGN: Cross-sectional, registry-based study. SETTING AND SUBJECTS: Chronic pain patients assessed at a multidisciplinary pain centre between 2008 and 2015. METHODS: Data from the Swedish quality registry for pain rehabilitation (SQRP) were retrieved and analysed by principal component analysis, hierarchical clustering analysis, and partial least squares-discriminant analysis. RESULTS: Four subgroups were identified. Group 1 was characterized by low "psychological strain", the best relative situation concerning pain characteristics (intensity and spreading), the lowest frequency of fibromyalgia, as well as by a slightly older age. Group 2 was characterized by high "psychological strain" and by the most negative situation with respect to pain characteristics (intensity and spreading). Group 3 was characterized by high "social distress", the longest pain durations, and a statistically higher frequency of females. The frequency of three neuropathic pain conditions was generally lower in this group. Group 4 was characterized by high psychological strain, low "social distress", and high pain intensity. CONCLUSIONS: The identification of these four clusters of chronic pain patients could be useful for the development of personalized rehabilitation programs. For example, the identification of a subgroup characterized mainly by high perceived "social distress" raises the question of how to best design interventions for such patients. Differentiating between clinically important subgroups and comparing how these subgroups respond to interventions is arguably an important area for further research.

A Validation and Generality Study of the Committed Action Questionnaire in a Swedish Sample with Chronic Pain.

PURPOSE: Psychological flexibility is the theoretical model that underpins Acceptance Commitment Therapy (ACT). There is a growing body of evidence indicating that ACT is an effective treatment for chronic pain but one component of the model, committed action, has not been sufficiently researched. The purpose of this study is to validate Swedish-language versions of the full length Committed Action Questionnaire (CAQ; CAQ-18) and the shortened CAQ (CAQ-8), to examine the generality of previous results related to committed action and to further demonstrate the relevance of this construct to the functioning of patients with chronic pain. METHOD: The study includes preliminary analyses of the reliability and validity of the CAQ. Participants were 462 consecutive referrals to the Pain Rehabilitation Unit at Skåne University Hospital. RESULTS: The Swedish-language versions of the CAQ (CAQ-18 and CAQ-8) demonstrated high levels of internal consistency and satisfactory relationships with various indices of patient functioning and theoretically related concepts. Confirmatory factor analyses showed that the Swedish versions of the CAQ yielded similar two-factor models as found in the original validation studies. Hierarchical regression analyses identified the measures as significant contributors to explained variance in patient functioning. CONCLUSION: The development, translation and further validation of the CAQ is an important step forward in evaluating the utility of the psychological flexibility model to the treatment of chronic pain. The CAQ can both assist researchers interested in mediators of chronic pain treatment and further enable research on change processes within the psychological flexibility model.