Children With Chronic Pain: Response Trajectories After Intensive Pain Rehabilitation Treatment

Brain Function and Pain Interference After Pediatric Intensive Interdisciplinary Pain Treatment

OBJECTIVES

Intensive interdisciplinary pain treatments (IIPTs) are programs that aim to improve functioning in youth with severe chronic pain. Little is known about how the brain changes after IIPT; however, decreased brain responses to emotional stimuli have been identified previously in pediatric chronic pain relative to healthy controls. We examined whether IIPT increased brain responses to emotional stimuli, and whether this change was associated with a reduction in pain interference.

PATIENTS AND METHODS

Twenty youths with chronic pain aged 14 to 18 years were scanned using functional magnetic resonance imaging, pre and post-IIPT. During the functional magnetic resonance imaging, patients were presented with emotional stimuli (ie, faces expressing happiness/fear), neutral expressions, and control (ie, scrambled) images. Patients completed a measure of pain interference pre and post-IIPT. Paired t tests were used to examine differences in brain activation in response to emotional versus neutral stimuli, pre to post-IIPT. Data from significant brain clusters were entered into linear mixed models to examine the relationships between brain activation and impairment pre and post-IIPT.

RESULTS

Patients demonstrated a decrease in middle frontal gyrus (MFG) activation in response to emotional stimuli (happy + fear) relative to scrambled images, between pre and post-IIPT ( P < 0.05). Lower MFG activation was associated with lower pain interference, pre and post-IIPT ( P < 0.05).

CONCLUSION

Contrary to our hypothesis, IIPT was associated with a reduction in MFG activation to emotional stimuli, and this change was associated with reduced pain interference. The MFG is a highly interconnected brain area involved in both pain chronification and antinociception. With further validation of these results, the MFG may represent an important biomarker for evaluating patient treatment response and target for future pain interventions.

Pediatric Complex Regional Pain Syndrome and Occupational Therapy Intervention: A Scoping Review

Complex regional pain syndrome (CRPS) is an increasingly recognized pain condition in the pediatric population. Occupational therapy (OT) is a crucial component of a multidisciplinary approach to treating pediatric CRPS. Yet, there is limited evidence detailing these OT interventions. This review aimed to explore the existing literature on OT interventions and delivery methods for pediatric CRPS. We performed a scoping review of peer-reviewed articles that included pediatric participants with CRPS with no limitation on publication date. Most of the 11 included studies described OT interventions that addressed pain, functional disability, motor and sensory function, social participation, and psychological well-being. Interventions included sensory reeducation programs, exercises, functional use of affected extremities, psychoeducation, and client and family education. To facilitate engagement in meaningful occupations, OT practitioners treating pediatric CRPS should provide evidence-based interventions and age-appropriate client education and include caregivers in the care plan.

Predictors of improvement in community adolescents with chronic neck pain: A secondary analysis using different improvement criteria

BACKGROUND

Interventions based on pain neuroscience education and exercise have emerged as effective in the management of chronic neck pain in adolescents. No studies have explored factors that might be associated with recovery in adolescents with neck pain.

OBJECTIVE

To explore predictors of improvement after an intervention based on exercise and pain neuroscience education.

DESIGN

Secondary analysis of a randomized trial.

SETTING

Community.

PARTICIPANTS

127 community adolescents with neck pain.

INTERVENTIONS

Blended-learning intervention based on exercise and pain neuroscience education.

MAIN OUTCOME MEASURES

A set of variables including sociodemographic data, pain characteristics, physical activity, disability, sleep, catastrophizing, fear of movement, self-efficacy, symptoms of central sensitization, knowledge of pain neuroscience, pressure pain thresholds, and neck muscles endurance were used to predict a clinical response at 1 week after intervention and at 6-month follow-up.

RESULTS

Different predictors of improvement and non-improvement to intervention were found, but common predictors were not found for all the improvement criteria explored and time points.

CONCLUSIONS

These findings suggest that using different criteria to characterize adolescents with neck pain as improved and non-improved after pain neuroscience education and exercise have an effect on the variables associated with a response to the intervention.

Psychological predictors of performance-based physical functioning among pediatric pain program participants

PURPOSE

The purpose of the present study was to evaluate changes in performance-based physical functioning and investigate psychological predictors of physical functioning over time in pediatric patients with chronic pain who completed an interdisciplinary rehabilitation intensive outpatient program (IOP).

METHODS

Participants (N = 55; mean age = 14.92 years; 12.7% male, 87.3% female; 83.6% White, 5.6% African-American/Black; 9.1% Latinx) completed baseline measures assessing pain intensity and modifiable psychological factors (i.e., pain catastrophizing, kinesiophobia, anxiety and depressive symptoms). Participants were administered performance-based assessments of physical functioning (i.e., physical endurance, high-level motor abilities) before and after IOP completion.

RESULTS

Pain intensity was not significantly associated with physical functioning at either timepoint. There was significant improvement on measures of physical functioning after completion of the IOP when controlling for the effects of sex, race, and ethnicity. Depressive symptoms were associated with baseline physical endurance, β = - .28, p = .047, while pain catastrophizing was associated with baseline gross motor abilities, β = - .28, p = .032.

CONCLUSION

Participation in an IOP led to significant improvement in physical endurance and high-level motor ability. Depressive symptoms and pain catastrophizing were associated with physical functioning at baseline but not post-program completion. Integration of pain psychology and physical therapy in an IOP can help address the interrelated psychological and physical factors impacting physical functioning to improve outcomes for children with chronic pain.

Pediatric pain rehabilitation during the COVID-19 pandemic: exploring the effectiveness of a hybrid intensive interdisciplinary pain treatment model

PURPOSE

This study aimed to (1) examine improvements in rehabilitation outcomes after participation in a pediatric hybrid intensive interdisciplinary pain treatment model (50% in-person and 50% video-based telehealth) and (2) compare magnitude of hybrid model improvements to patients treated in a traditional, 100% in-person model prior to the pandemic.

MATERIALS AND METHODS

Rehabilitation outcomes for 33 youth with chronic pain from the model were compared to 33 youth with chronic pain who completed a traditional, in-person model. Improvements between admission and discharge in both models were examined using paired student t-tests. Independent samples t-tests compared change scores for the hybrid and traditional models.

RESULTS

Participants in both models experienced significant improvements on all rehabilitation outcomes, including cardiovascular endurance, pain interference, functional disability, and occupational performance (p < 0.001), except for pain intensity (p = 0.15). Change scores for rehabilitation outcomes did not significantly differ between models.

CONCLUSIONS

Quantitatively, hybrid model rehabilitation outcomes appeared clinically equivalent to the traditional, in-person model. Qualitative and psychosocial outcome comparisons of each model are warranted to better understand challenges and barriers associated with hybrid pain treatment models. The feasibility and impact of tools to enhance telehealth, such as actigraphy or virtual reality, should also be explored.IMPLICATIONS FOR REHABILITATIONThis study supports the efficacy of video-based telehealth interventions for children and adolescents with chronic pain syndromes.Disability outcomes for a hybrid (50% in-person, 50% video-based telehealth) intensive interdisciplinary pain treatment program appear to be equivalent to patients treated within a fully in-person program.

Baseline Factors Associated with Pain Intensity, Pain Catastrophizing, and Pain Interference in Intensive Interdisciplinary Pain Treatment for Youth

Background: More could be known about baseline factors related to desirable Intensive Interdisciplinary Pain Treatment (IIPT) outcomes. This study examined how baseline characteristics (age, gender, child pain catastrophizing (PCS-C), pain interference, pain intensity, anxiety, depression, paediatric health-related quality of life (PedsQLTM), and parent catastrophizing (PCS-P)) were associated with discharge and 3-month follow-up scores of PCS-C, pain intensity, and pain interference. Methods: PCS-C, pain intensity, and pain interference T-scores were acquired in 45 IIPT patients aged 12-18 at intake (baseline), discharge, and 3-month follow-up. Using available and imputed data, linear mixed models were developed to explore associations between PCS-C, pain intensity, and pain interference aggregated scores at discharge and follow-up with baseline demographics and a priori selected baseline measures of pain, depression, anxiety, and PCS-C/P. Results: PCS-C and pain interference scores decreased over time compared to baseline. Pain intensity did not change significantly. Baseline PCS-C, pain interference, anxiety, depression, and PedsQLTM were associated with discharge/follow-up PCS-C (available and imputed data) and pain interference scores (available data). Only baseline pain intensity was significantly associated with itself at discharge/follow-up. Conclusions: Participants who completed the IIPT program presented with reduced PCS-C and pain interference over time. Interventions that target pre-treatment anxiety and depression may optimize IIPT outcomes.

Healthcare Professionals’ Knowledge about Pediatric Chronic Pain: A Systematic Review

Pediatric chronic pain is a common public health problem with a high prevalence among children and adolescents. The aim of this study was to review the current knowledge of health professionals on pediatric chronic pain between 15–30% among children and adolescents. However, since this is an underdiagnosed condition, it is inadequately treated by health professionals. To this aim, a systematic review was carried out based on a search of the electronic literature databases (PubMed and Web of Science), resulting in 14 articles that met the inclusion criteria. The analysis of these articles seems to show a certain degree of heterogeneity in the surveyed professionals about the awareness of this concept, especially regarding its etiology, assessment, and management. In addition, the extent of knowledge of the health professionals seems to be insufficient regarding these aspects of pediatric chronic pain. Hence, the knowledge of the health professionals is unrelated to recent research that identifies central hyperexcitability as the primary factor affecting the onset, persistence, and management of pediatric chronic pain.

Mediating Role of Treatment Perceptions in the Relationship Between Individual Characteristics and Engagement With a Digital Psychological Intervention for Pediatric Chronic Pain: Secondary Data Analysis

BACKGROUND

Engagement predicts benefits from self-managed treatments. However, engagement is an important concern in digital interventions, with over 50% of patients being nonadherent to interventions in chronic conditions such as chronic pain. Little is known about the individual characteristics that contribute to engagement with a digital self-management treatment.

OBJECTIVE

This study tested the mediating role of treatment perceptions (difficulty and helpfulness) in the association between individual baseline characteristics (treatment expectancies and readiness to change) and treatment engagement (online and offline) with a digital psychological intervention for adolescents with chronic pain.

METHODS

A secondary data analysis of a single-arm trial of Web-based Management of Adolescent Pain, a self-guided internet intervention developed for the management of chronic pain in adolescents, was conducted. Survey data were collected at baseline (T1), midtreatment (ie, 4 weeks after the treatment started; T2), and post treatment (T3). Online engagement was assessed using back-end information on the number of days adolescents accessed the treatment website, while the offline engagement was assessed with the reported frequency of use of skills (ie, pain management strategies) learned at the end of the treatment. Four parallel multiple mediator linear regression models, using ordinary least square regression incorporating the variables were tested.

RESULTS

In total, 85 adolescents with chronic pain (12-17 years old, 77% female) participated. Several mediation models were significant in predicting online engagement. A significant indirect effect was found for the path expectancies-helpfulness-online engagement (effect 0.125; SE 0.098; 95% CI 0.013-0.389) and for the path precontemplation-helpfulness-online engagement (effect -1.027; SE 0.650; 95% CI -2.518 to -0.054). Fourteen percent of the variance of online engagement was explained by the model including expectancies as a predictor (F₃=3.521; P<.05), whereas 15% was explained by the model where readiness to change was the predictor (F₃=3.934; P<.05). Offline engagement was partially explained in the model including readiness to change as the predictor but with marginal significance (F₃=2.719; R²=0.111; P=.05).

CONCLUSIONS

Treatment perception, specifically, perceived helpfulness, was a mediator of the pathway between both treatment expectancies and readiness to change and online engagement with a digital psychological intervention for chronic pain. Assessing these variables at baseline and midtreatment may help to determine the risk of nonadherence. Further work is needed to confirm these mediation pathways in larger samples.

TRIAL REGISTRATION

ClinicalTrials.gov NCT04043962; https://clinicaltrials.gov/ct2/show/NCT04043962.

Checking IN: Development, Acceptability, and Feasibility of a Pediatric Electronic Distress Screener

Objective

Chronic illness in children and adolescents is associated with significant stress and risk of psychosocial problems. In busy pediatric clinics, limited time and resources are significant barriers to providing mental health assessment for every child. A brief, real-time self-report measure of psychosocial problems is needed.

Methods

An electronic distress screening tool, Checking IN, for ages 8-21 was developed in 3 phases. Phase I used semi-structured cognitive interviews (N = 47) to test the wording of items assessing emotional, physical, social, practical, and spiritual concerns of pediatric patients. Findings informed the development of the final measure and an electronic platform (Phase II). Phase III used semi-structured interviews (N = 134) to assess child, caregiver and researcher perception of the feasibility, acceptability, and barriers of administering Checking IN in the outpatient setting at 4 sites.

Results

Most patients and caregivers rated Checking IN as "easy" or "very easy" to complete, "feasible" or "somewhat feasible," and the time to complete the measure as acceptable. Most providers (n = 68) reported Checking IN elicited clinically useful and novel information. Fifty-four percent changed care for their patient based on the results.

Conclusions

Checking IN is a versatile and brief distress screener that is acceptable to youth with chronic illness and feasible to administer. The summary report provides immediate clinically meaningful data. Electronic tools like Checking IN can capture a child's current psychosocial wellbeing in a standardized, consistent, and useful way, while allowing for the automation of triaging referrals and psychosocial documentation during outpatient visits.

Predicting the Need for Transition from Pediatric to Adult Pain Services: A Retrospective, Longitudinal Study Using the Electronic Persistent Pain Outcome Collaboration (ePPOC) Databases

A proportion of youth with chronic pain do not respond to interdisciplinary pain management and may require transition to adult pain services. This study sought to characterize a cohort of patients referred to pediatric pain services who subsequently required referral to an adult pain service. We compared this transition group with pediatric patients eligible by age to transition but who did not transition to adult services. We sought to identify factors predicting the need to transition to adult pain services. This retrospective study utilized linkage data from the adult electronic Persistent Pain Outcomes Collaboration (ePPOC) and the pediatric (PaedePPOC) data repositories. The transition group experienced significantly higher pain intensity and disability, lower quality of life, and higher health care utilization relative to the comparison group. Parents of the transition group reported greater distress, catastrophizing, and helplessness relative to parents in the comparison group. Three factors significantly predicted transition: compensation status (OR = 4.21 (1.185-15)), daily anti-inflammatory medication use (OR = 2 (1.028-3.9)), and older age at referral (OR = 1.6 (1.3-2.17)). This study demonstrated that patients referred to pediatric pain services who subsequently need transition to adult services are a uniquely disabled and vulnerable group beyond comparative peers. Clinical applications for transition-specific care are discussed.

The effect domains, measures, and methods reported in pediatric-specialized multidisciplinary outpatient rehabilitation programs: An integrated review

OBJECTIVES

Specialized pain rehabilitation is recognized as the treatment of choice for youth with pain-related disability. Appropriate outcomes for program evaluation are critical. This study aimed to summarize the effect domains and methods used to evaluate pediatric-specialized outpatient pain rehabilition programs, map them to the PedIMMPACT statement, and highlight future directions.

METHODS

An integrated review framework, incorporating stakeholders, was used. Academic Search Complete, CINAHL, ERIC, MEDLINE, PsycINFO, and Google Scholar were searched for studies published in 1999-2021 featuring the treatment effects of specialized outpatient pain rehabilitation on youth with pain-related disability and their parents. Selected studies were critically appraised using the Quality Assessment Tool for Studies of Diverse Design, organized by study characteristics, and analyzed using constant comparison.

RESULTS

From the 1951 potentially relevant titles, 37 studies were selected. Twenty-five effects targeted youth and 24 focused on parents, with a maximum of 15 youth and 11 parent effect domains (median = 5 domains per study). Although most studies measured a combination of effect domains and were inclusive of some recommended in the PedIMMPACT statement, no effect was measured consistently across studies. Youth physical functioning and parent emotional functioning were measured most often. Eighty-five instruments were used to assess youth outcomes and 59 for parents, with self-report questionnaires dominating.

DISCUSSION

A lack of standardization exists associated with the domains and methods used to evaluate the effects of pediatric-specialized outpatient pain rehabilitation programs, hindering comparisons. Future program evaluations should be founded on their theory, aim, and anticipated outcomes.

Occupational therapy treatment of complex regional pain syndrome in children and adolescents: a scoping review protocol

OBJECTIVE

This scoping review will explore the literature related to occupational therapy interventions and delivery methods for pediatric complex regional pain syndrome.

INTRODUCTION

Complex regional pain syndrome is a debilitating pain condition that is becoming increasingly diagnosed within the pediatric population. Untreated, it can negatively impact a child's occupational engagement and participation, social functioning, and family dynamics. A multidisciplinary treatment approach is typically recommended, with occupational therapy as an essential component. Occupational therapy interventions for pediatric complex regional pain syndrome usually promote a child's ability to participate in daily activities to prevent further impairment and disability. Despite evidence that occupational therapy practitioners treat this population, no review has been conducted of the available literature on occupational therapy interventions for pediatric complex regional pain syndrome.

INCLUSION CRITERIA

This review will consider studies that include any form of occupational therapy interventions for participants with complex regional pain syndrome who are 18 years or younger. Quantitative, qualitative, and observational studies, and text and opinion papers will be considered.

METHODS

The JBI methodology will be used to conduct this scoping review. MEDLINE, Embase, Scopus, APA PsycINFO, CINAHL, OTDBASE, OT Search (AOTA), OTseeker, and ProQuest Dissertations and Theses Global will be searched for studies in English, with no limit on publication date. Two independent reviewers will screen the titles, abstracts, and full texts of the selected studies. Data collection will be performed using a tool developed by the researchers based on the standardized JBI tool. Data will be presented in a comprehensive narrative summary.

A Systematic Review of Occupational Therapy-Related Interventions for Pediatric Chronic Pain

Occupational therapists have distinct value providing pediatric chronic pain interventions (e.g., pain management, normalizing sensory responses, increasing participation); however, limited evidence exists. This review appraised empirical studies on occupational therapy pediatric chronic pain management. Three reviewers independently screened 2,401 titles, 250 abstracts, and 71 full-text sources for studies published in English, after 2008, and with sample sizes >10, participants <18 years, with chronic pain >3 months, and outcomes related to pain/function. Studies were assessed for risk of bias. The review included 23 studies on psychological, interprofessional, virtual/telehealth, or biomechanical management, demonstrating significant decreases in pain/disability. Most studies had high risk of bias for lack of randomization and control groups, and homogeneous sampling. The occupational therapists' role in chronic pain interventions is still unclear. Research including larger, heterogenous samples is warranted to examine occupational therapy's specific role providing pain interventions as part of a team.

Clinical Assessment of Mechanical Allodynia in Youth With Complex Regional Pain Syndrome: Development and Preliminary Validation of the Pediatric Tactile Sensitivity Test of Allodynia (Pedi-Sense)

Youth with complex regional pain syndrome (CRPS) commonly experience mechanical allodynia and disability. Assessment of mechanical allodynia is typically binary (present or absent), making it difficult to assess the quality and degree of mechanical allodynia before and after treatment. This study developed and validated the Pediatric Tactile Sensitivity Test of Allodynia (Pedi-Sense) to provide an easy way for rehabilitation clinicians to evaluate mechanical allodynia before and after intensive interdisciplinary pain treatment. The 6 Pedi-Sense items demonstrated adequate internal consistency reliability (CR) at admission (CR = .956) and discharge (CR = .973), reasonably fit the hypothesized linear model of stimulus intensity (P < .0001), and significantly loaded onto a single latent factor, mechanical allodynia (P < .0001), at admission and discharge. Pedi-Sense scores significantly correlated with disability (r_s = .40; P = .004) and pain catastrophizing (r_s = .33; P = .017) at admission. The Pedi-Sense appeared responsive to intervention as participants' total scores improved by 1.44 points (95% CI: .72, 2.15) after IIPT interventions that included daily tactile desensitization. However, test-retest and interrater reliability and the specific contribution of desensitization treatment to the overall success of multi-modal pain rehabilitation still needs to be evaluated. PERSPECTIVE: This article presents the development and preliminary validation of a novel clinical assessment of static and dynamic mechanical allodynia. The Pediatric Tactile Sensitivity Test of Allodynia (Pedi-Sense) allows rehabilitation clinicians to easily evaluate mechanical allodynia at the bedside with minimal training and simple equipment to guide desensitization treatment in clinical settings.

Selection and reporting of outcome measures used in long-term follow-up studies of children and adolescents with chronic pain: A scoping review

The aim of this review was to determine the range of outcomes reported in long-term follow-up studies of children and adolescents with chronic pain. Using a scoping review methodology, a systematic search for studies reporting outcomes in children and adolescents with chronic pain over a ≥12 month period was undertaken. Studies were eligible for inclusion if they included children and adolescents (≤18 years old on study enrolment) with chronic pain, and outcomes were followed up for ≥12 months. Overall, 42 studies investigating more than 24,132 children were included in the review. Studies assessed a total of 187 unique outcome measures within the broader measures of pain (38 studies; 90%), function (33 studies; 79%) and other (21 studies; 50%). Unidimensional assessments of the severity or presence of pain and global assessments of function were the most commonly reported outcome measures. The number of study follow-up points ranged from 1 to 5, with mode duration of follow-up 12 months post intervention (25 studies; 60%; range 1-13 years). Overall, we identified a wide range of reported outcome measures in studies of children with chronic pain. Beyond assessments of pain intensity and global function, there is little consistency, and reporting of developmental outcome measures is poor. Further long-term outcome research in this population is needed.

Intensive interdisciplinary pain treatment for children and adolescents with chronic noncancer pain: a preregistered systematic review and individual patient data meta-analysis

ABSTRACT

Chronic noncancer pain in children and adolescents can be impairing and results in substantial health care costs. Intensive interdisciplinary pain treatment (IIPT), an inpatient or day hospital treatment delivered by a team of 3 or more health professionals, may be an effective intervention for these children and adolescents. Based on previous reviews and meta-analyses, we updated findings regarding the description of available treatments and estimated the effectiveness of IIPT, overcoming methodological shortcomings of previous work by requesting and analyzing individual participant data. On June 26, 2021, we searched 5 literature databases (PubMed, PsycINFO, Web of Science, Cochrane Library, and PubPsych) for studies examining the effectiveness of IIPT. Included studies used a pre-post design, assessed patients younger than 22 years, and presented their results in English, German, French, or Spanish. We used standard methodological procedures expected by Cochrane to pool treatment effects and assess risk of bias. We identified 13 different treatment sites with similar treatment inclusion criteria and treatment components, but the descriptions of those treatments varied widely. Regarding treatment effectiveness, IIPT may result in large improvements in the mean pain intensity ( g = -1.28), disability ( g = -1.91), and number of missed school days at the 12-month follow-up ( g = -0.99), as well as moderate improvements in anxiety ( g = -0.77) and depression ( g = -0.76). The certainty of the evidence, however, was graded from very low to low. We recommend that future researchers use more scientific rigor to increase the certainty of the evidence for IIPT and standardize treatment outcomes for children and adolescents with chronic pain.

Will This Treatment Help My Child?: How Parent/Caregiver Treatment Expectations Relate to Intensive Pain Rehabilitation Outcomes for Youth With Chronic Pain

OBJECTIVE

An extensive body of research has highlighted the impact that parent/caregiver factors have on functioning and treatment outcomes among youth with chronic pain. However, parent/caregiver expectations in pain treatment have been largely understudied, despite strong evidence that treatment expectations are associated with treatment engagement and overall outcomes in nonpain populations. Accordingly, the primary aim of this investigation was to preliminarily examine the manifestation and measurement of parent/caregiver treatment expectations in an intensive interdisciplinary pediatric pain treatment (IIPT) setting.

METHODS

Participants in this study (N=328) included children and adolescents who attended an IIPT program for chronic pain between August 2013 and March 2020 and their parent/caregiver(s). Outcomes examined include parent/caregiver self-report of treatment expectations for their child upon admission to the IIPT in addition to pain-related and psychosocial factors at admission and discharge.

RESULTS

Findings revealed a high level of expectations (ie, belief that the treatment will be helpful) on average, with higher parent/caregiver expectations associated with poorer functioning at admission to and discharge from the IIPT program.

CONCLUSION

Extremely high treatment expectations among parents of more disabled youth may be indicative of unrealistic hopes or the "need" for IIPT to help their child; tempering parental expectations with psychoeducation about IIPT goals and realistic outcomes may indirectly improve treatment outcomes for their children. Future research should examine the potentially unique and important role that treatment expectations, of both parent/caregivers and their children, may have in overall IIPT outcomes.

Promoting readiness and engagement in pain rehabilitation for youth and families: Developing a pediatric telehealth motivational interviewing protocol

Objective

Intensive interdisciplinary pain treatment (IIPT) is a promising approach for youth with complex, disabling, refractory pain conditions. However, youth and families who initiate IIPT without sufficient acceptance of its focus on functional rehabilitation or readiness to adopt a self‐management approach to their pain may face challenges in IIPT and/or experience suboptimal outcomes. Motivational interviewing (MI) techniques have been shown to enhance readiness to make a number of health behavior changes for adults and youth, but it has not been systematically examined in the context of pediatric IIPT. The authors developed an MI telehealth intervention protocol explicitly designed to prepare youth and families for admission to IIPT.

Method

The protocol development process is detailed here, including influential models, expert consultation, and feedback from IIPT clinical experts. The intervention protocol was then piloted with a group of eligible families to elicit feedback and prompt further refining. Feasibility and acceptability were explored through measures of treatment engagement and satisfaction.

Results

The Promoting Readiness and Engagement in Pain Rehabilitation (PREPaRe) intervention protocol contains four modules aimed to enhance youth and parent readiness to adopt a self‐management approach to persistent pain, through a motivational interviewing approach. Initial responses from the test group suggested high levels of treatment engagement and treatment satisfaction with PREPaRe.

Conclusions

PREPaRe appears feasible to administer and acceptable to families of youth with persistent pain seeking IIPT. Implications for implementation are discussed. Further study via randomized control trial is warranted.

Trial registration

ClinicalTrials.gov identifier: NCT04093921.

A randomized controlled trial on long-term effectiveness of a psychosocial aftercare program following pediatric chronic pain treatment: Who benefits the most?

BACKGROUND

For pediatric chronic pain patients, intensive interdisciplinary pain treatment (IIPT) is a well-established treatment. The treatment's short-term effectiveness can be improved by an additive psychosocial aftercare (PAC). However, neither the program's long-term effectiveness nor the patients in particular need have been investigated yet.

METHODS

This study aimed at determining the long-term effects of PAC and detecting predictors of treatment outcome within a multicenter randomized controlled trial measured at five time points up to twelve months after discharge. At inpatient admission to IIPT, patients (N=419, 14.3 years of age, 72.3% female) were randomly assigned to intervention or control group. After IIPT discharge, the intervention group received PAC, whereas the control group received treatment as usual (TAU). Patient-reported outcomes included pain and emotional characteristics. Clinicians assessed potential psychosocial risk factors and their prognosis of treatment outcome. Statistical analyses included mixed-models and univariable logistic regressions.

RESULTS

Data at the 12-month follow-up (n=288) showed a significant benefit of PAC compared with TAU; the majority (59.0%) of patients in the PAC-group reported no chronic pain compared to 29.2% of TAU-patients (p<.001). Patients with a single parent specifically benefited from PAC compared to TAU. Clinicians were able to make a reliable prognosis of treatment outcome, but did not successfully predict which patients would benefit the most from PAC.

CONCLUSIONS

Study results suggest that PAC is highly effective irrespective of patient characteristics, but particularly for patients with single parents. Its broad implementation could help to improve the long-term outcomes of youth with severely disabling chronic pain.

Signature for Pain Recovery IN Teens (SPRINT): protocol for a multisite prospective signature study in chronic musculoskeletal pain

INTRODUCTION

Current treatments for chronic musculoskeletal (MSK) pain are suboptimal. Discovery of robust prognostic markers separating patients who recover from patients with persistent pain and disability is critical for developing patient-specific treatment strategies and conceiving novel approaches that benefit all patients. Given that chronic pain is a biopsychosocial process, this study aims to discover and validate a robust prognostic signature that measures across multiple dimensions in the same adolescent patient cohort with a computational analysis pipeline. This will facilitate risk stratification in adolescent patients with chronic MSK pain and more resourceful allocation of patients to costly and potentially burdensome multidisciplinary pain treatment approaches.

METHODS AND ANALYSIS

Here we describe a multi-institutional effort to collect, curate and analyse a high dimensional data set including epidemiological, psychometric, quantitative sensory, brain imaging and biological information collected over the course of 12 months. The aim of this effort is to derive a multivariate model with strong prognostic power regarding the clinical course of adolescent MSK pain and function.

ETHICS AND DISSEMINATION

The study complies with the National Institutes of Health policy on the use of a single internal review board (sIRB) for multisite research, with Cincinnati Children's Hospital Medical Center Review Board as the reviewing IRB. Stanford's IRB is a relying IRB within the sIRB. As foreign institutions, the University of Toronto and The Hospital for Sick Children (SickKids) are overseen by their respective ethics boards. All participants provide signed informed consent. We are committed to open-access publication, so that patients, clinicians and scientists have access to the study data and the signature(s) derived. After findings are published, we will upload a limited data set for sharing with other investigators on applicable repositories.

TRIAL REGISTRATION NUMBER

NCT04285112.

Phenotyping Chronic Musculoskeletal Pain in Male and Female Adolescents: Psychosocial Profiles, Somatosensory Profiles and Pain Modulatory Profiles

Purpose

A major limitation in treatment outcomes for chronic pain is the heterogeneity of the population. Therefore, a personalized approach to the assessment and treatment of children and adolescents with chronic pain conditions is needed. The objective of the study was to subgroup pediatric patients with chronic MSK pain that will be phenotypically different from each other based on their psychosocial profile, somatosensory function, and pain modulation.

Patients and Methods

This observational cohort study recruited 302 adolescents (10–18 years) with chronic musculoskeletal pain and 80 age-matched controls. After validated self-report questionnaires on psychosocial factors were completed, quantitative sensory tests (QST) and conditioned pain modulation (CPM) were performed.

Results

Three psychosocial subgroups were identified: adaptive pain (n=125), high pain dysfunctional (n=115), high somatic symptoms (n=62). Based on QST, four somatosensory profiles were observed: normal QST (n=155), thermal hyperalgesia (n=98), mechanical hyperalgesia (n=34) and sensory loss (n=15). Based on CPM and temporal summation of pain (TSP), four distinct groups were formed, dysfunctional central processing group (n=27) had suboptimal CPM and present TSP, dysfunctional inhibition group (n=136) had suboptimal CPM and absent TSP, facilitation group (n=18) had optimal CPM and present TSP, and functional central processing (n=112) had optimal CPM and absent TSP. A significant association between the psychosocial and somatosensory profiles. However, no association was observed between the psychosocial or somatosensory profiles and pain modulatory profiles.

Conclusion

Our results provide evidence that adolescents with chronic musculoskeletal pain are a heterogenous population comprising subgroups that may reflect distinct mechanisms and may benefit from different treatment approaches. The combination of screening self-reported questionnaires, QST, and CPM facilitate subgrouping of adolescents with chronic MSK pain in the clinical context and may ultimately contribute to personalized therapy.

Psychosocial and psychophysical assessment in pediatric patients and young adults with chronic back pain: a cluster analysis

Background

Identifying subgroups with different clinical profiles may inform tailored management and improve outcomes. The objective of this study was to identify psychosocial and psychophysical profiles of children and adolescents with chronic back pain.

Methods

One hundred and ninety‐eight patients with chronic back pain were recruited for the study. Pain assessment was mainly conducted in the form of an interview and with the use of validated pain‐related questionnaires assessing their psychosocial factors and disability. All patients underwent mechanical and thermal quantitative sensory tests assessing detection and pain thresholds, and conditioned pain modulation efficacy.

Results

Hierarchal clustering partitioned our patients into three clusters accounting for 34.73% of the total variation of the data. The adaptive cluster represented 45.5% of the patients and was characterized to display high thermal and pressure pain thresholds. The high somatic symptoms cluster, representing 19.2% of patients, was characterized to use more sensory, affective, evaluative and temporal descriptors of pain, more likely to report their pain as neuropathic of nature, report a more functional disability, report symptoms of anxiety and depression and report poor sleep quality. The pain‐sensitive cluster, representing 35.4% of the cohort, displayed deep tissue sensitivity and thermal hyperalgesia.

Conclusions

This study identified clinical profiles of children and adolescents experiencing chronic back pain based on specific psychophysical and psychosocial characteristics highlighting that chronic pain treatment should address underlying nociceptive and non‐nociceptive mechanisms.

Significance

To our current knowledge, this study is the first to conduct cluster analysis with youth experiencing chronic back pain and displays clinical profiles based on specific physical and psychosocial characteristics. This study highlights that in a clinical context, chronic pain assessment should include multiple elements contributing to pain which can be assessed in a clinical context and addressed when pathoanatomical symptoms are unidentifiable.

Is It Worth It? A Comparison of an Intensive Interdisciplinary Pain Treatment and a Multimodal Treatment for Youths With Pain-related Disability

OBJECTIVE

The objective of this study was to evaluate the effectiveness of an intensive interdisciplinary pain treatment (IIPT) day-hospital program as compared with an outpatient multimodal treatment (MMT) for youth with chronic pain.

MATERIALS AND METHODS

A nonrandomized pretest posttest with control group design was used. A battery of patient-oriented measures assessing pain interference, quality of life, and depressive symptoms were completed at treatment commencement and at 3, 6, and 12 months after treatment by 44 youths enrolled in the IIPT and 138 youths engaged in the MMT, with various chronic pain conditions. Data were analyzed using longitudinal mixed-effects models.

RESULTS

The main outcomes were the score difference from baseline of patient-oriented measures across 3 timepoints within 12 months of intervention initiation for both treatment groups. IIPT participants demonstrated greater improvement in pain interference, as compared with MMT at 3 and 12 months. Initially, health-related quality of life scores improved similarly in both groups, but greater improvement was seen in the MMT group at 12 months. Depressive symptom scores did not improve with either intervention. Only pain interference scores reached statistically and clinically significant difference levels.

DISCUSSION

This study supports the benefits of specialized rehabilitation interventions, including both MMT and IIPT programs, for youths with chronic pain. The findings also suggest that IIPT might have a greater long-term effect for helping youths, in particular those with high pain interference scores.

The Impact of Spatial Distribution of Pain on Long-Term Trajectories for Chronic Pain Outcomes After Intensive Interdisciplinary Pain Treatment

OBJECTIVES

Evidence for the effectiveness of intensive interdisciplinary pain treatment (IIPT) for pediatric chronic pain is growing; however, little research has considered factors that contribute to differences in patients' treatment response. The present study utilized multilevel modeling to examine trajectory of change over time in functional disability from clinic assessment to 6-month follow-up in pediatric patients participating in IIPT, considering spatial distribution of pain, coping efficacy, and pain intensity.

MATERIALS AND METHODS

Participants included 110 pediatric patients (Mage=14.65, SD=2.37; localized pain, 27.3%; widespread pain, 72.7%) consecutively admitted into IIPT. Patients completed self-report measures of functional disability, pain intensity, and coping efficacy at pretreatment assessment, admission, weekly during IIPT, discharge, and several follow-ups.

RESULTS

Analysis identified a model with 3 three-way interactions, including time, time squared, pain intensity, coping efficacy, and pain distribution, on functional disability. The spatial distribution of pain had the greatest impact on treatment trajectory in patients with widespread pain, high pain intensity, and poor coping efficacy; these patients demonstrated greater functional disability compared with patients with localized pain. In addition, patients with widespread pain and poor coping efficacy had the most functional disability across all levels of pain intensity. Patients with localized pain and poor coping efficacy demonstrated initial treatment gains, but evidenced an increase in functional disability at follow-up.

DISCUSSION

Overall, spatial distribution of pain, coping efficacy, and pain intensity played an important role in patients' response to treatment. Better understanding of these variables could improve treatment response, particularly for the most severely disabled chronic pain patients.

Youngsters' perceptions of the experience of pain and utilisation of over-the-counter pain medication as needed in community: A qualitative study

PURPOSE

Pain is common in youngsters. No matter its nature, youngsters' consideration of pain is complex since its communications vary as a function of several components. The aim of this study is to explore the youngsters' perception linked to their experience of physiological pain at the home/family setting, as well as their experience with the utilisation of over-the-counter pain medication as needed.

DESIGN AND METHODS

A qualitative exploratory study was undertaken with 22 youngsters aged 5-17 years old. Semidirected interviews led to the understanding of these components by means of the pain experiences. Thematic analysis allowed the detection of the themes and subthemes emerging from the verbatim collected with the participants.

RESULTS

The way pain is described is influenced by the child's development, previous experiences, and the projection of having pain. The pain communication is influenced by the severity perceived, the beliefs of the youngster experiencing pain, the comparison of the pain communication with his brothers and sisters, as well as the anticipated consequences of expressing his pain. The choice of behaviour towards pain is influenced by self-management through nonpharmacological management, with medicines if needed, and by family modelization.

PRACTICE IMPLICATIONS

This study confirms that previous pain experiences, beliefs related to pain tolerance and intended reactions of parents exert influence not only on the communication of pain, but also on youngsters' behaviour towards pain. It is important to consider these elements whenever youngsters' pain is evaluated.

Understanding How Perfectionism Impacts Intensive Interdisciplinary Pain Treatment Outcomes: A Nonrandomized Trial

OBJECTIVE

Several factors are known to impact response to the intensive interdisciplinary pain treatment (IIPT) program described in this study, yet no research has explored the role of perfectionism. This secondary data analysis explored direct and indirect relations between perfectionism and functional disability (primary outcome) and pain severity (secondary outcome) after IIPT, with pain catastrophizing and fear of pain as mediators.

METHODS

Youth (N = 253) aged 8-21 with chronic pain and associated disability completed pre- and post-IIPT measures of self-oriented perfectionism (SOP), socially prescribed perfectionism (SPP), pain catastrophizing, fear of pain, functional disability, and pain characteristics for routine clinical care and this nonrandomized trial. Eight mediated models were run for the two predictors, two mediators, and two outcomes.

RESULTS

Pretreatment perfectionism (SOP and SPP) led to greater reductions in pain catastrophizing over the course of IIPT, which resulted in lower pain severity (β = -.02 [CI = -0.07, -0.01] for SOP and β = -.02 [CI = -0.06, -0.003] for SPP) and less functional disability (β = -.06 [CI = -0.13, -0.01] for SOP and β = -.06 [CI = -0.14, -0.01] for SPP). Independent of pain catastrophizing, pretreatment SPP was directly associated with more posttreatment functional disability (β = .16 [CI = 0.05, 0.27]). Fear of pain was not a mediator.

CONCLUSIONS

Findings suggest perfectionism has the potential to negatively impact IIPT outcomes. However, when perfectionistic youth with chronic pain learn to manage pain-related distress, they benefit. Results highlight the importance of assessing for and treating perfectionism and pain-related distress in youth with chronic pain.

Pain stickiness in pediatric complex regional pain syndrome: A role for the nucleus accumbens

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Pain nonresponders have decreased nucleus accumbens (NAc) grey matter density.

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Pain nonresponders have reduced functional connectivity between NAc and dlPFC.

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Connectivity strength between NAc and dlPFC correlates with changes in pain.

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Prediction estimate for pain improvement with grey matter and connectivity was 87%.

Some individuals with chronic pain experience improvement in their pain with treatment, whereas others do not. The neurobiological reason is unclear, but an understanding of brain structure and functional patterns may provide insights into pain’s responsivity to treatment. In this investigation, we used magnetic resonance imaging (MRI) techniques to determine grey matter density alterations on resting functional connectivity (RFC) strengths between pain responders and nonresponders in patients with complex regional pain syndrome. Brain metrics of pediatric patients at admission to an intensive pain rehabilitative treatment program were evaluated. Pain responders reported significant pain improvement at discharge and/or follow-up whereas nonresponders reported no improvements in pain, increases in pain, or emergence of new pain symptoms. The pain (responder/nonresponder) groups were compared with pain-free healthy controls to examine predictors of pain responder status via brain metrics. Our results show: (1) on admission, pain nonresponders had decreased grey matter density (GMD) within the nucleus accumbens (NAc) and reduced RFC strength between the NAc and the dorsolateral prefrontal cortex vs. responders; (2) Connectivity strength was positively correlated with change in pain intensity from admission to discharge; (3) Compared with pain-free controls, grey matter and RFC differences emerged only among pain nonresponders; and (4) Using a discriminative model, combining GMD and RFC strengths assessed at admission showed the highest prediction estimate (87%) on potential for pain improvement, warranting testing in a de novo sample. Taken together, these results support the idea that treatment responsiveness on pain is underpinned by concurrent brain structure and resting brain activity.

Avoid or engage? Outcomes of graded exposure in youth with chronic pain using a sequential replicated single-case randomized design

Pain-related fear is typically associated with avoidance behavior and pain-related disability in youth with chronic pain. Youth with elevated pain-related fear have attenuated treatment responses; thus, targeted treatment is highly warranted. Evidence supporting graded in vivo exposure treatment (GET) for adults with chronic pain is considerable, but just emerging for youth. The current investigation represents the first sequential replicated and randomized single-case experimental phase design with multiple measures evaluating GET for youth with chronic pain, entitled GET Living. A cohort of 27 youth (81% female) with mixed chronic pain completed GET Living. For each participant, a no-treatment randomized baseline period was compared with GET Living and 3- and 6-month follow-ups. Daily changes in primary outcomes fear and avoidance and secondary outcomes pain catastrophizing, pain intensity, and pain acceptance were assessed using electronic diaries and subjected to descriptive and model-based inference analyses. Based on individual effect size calculations, a third of participants significantly improved by the end of treatment on fear, avoidance, and pain acceptance. By follow-up, over 80% of participants had improved across all primary and secondary outcomes. Model-based inference analysis results to examine the series of replicated cases were generally consistent. Improvements during GET Living was superior to the no-treatment randomized baseline period for avoidance, pain acceptance, and pain intensity, whereas fear and pain catastrophizing did not improve. All 5 outcomes emerged as significantly improved at 3- and 6-month follow-ups. The results of this replicated single-case experimental phase design support the effectiveness of graded exposure for youth with chronic pain and elevated pain-related fear avoidance.

High Boron Silicon Nanotubes Combined with Tai Chi Exercise Rehabilitation Therapy in the Treatment of Knee Arthritis Patients

Tai Chi exercise is gentle, convenient, and easy to learn. It is more economical than traditional medical treatments, and it is regarded as the first choice for rehabilitation therapy by patients with knee arthritis. This article aims to study Tai Chi exercise rehabilitation therapy combined with high boron silicon nanotubes to treat knee arthritis patients. This article mainly introduces the treatment of knee arthritis patients with Tai Chi, which is reflected in the improvement of patients’ walking ability and stability, and explores a three-dimensional motion model to provide better help for patients with knee joints. The article uses data mining methods to collect data on the gene expression of human knee joints and analyzes the causes of knee arthritis caused by its internal structure. The experimental results of this paper show that, under Taijiquan exercise rehabilitation treatment, the time needed by knee arthritis patients to get up and run is reduced by 14%, the standing time of one leg is significantly improved, the fall rate is reduced by 13%, and the body’s static balance ability is improved.

Does intensive interdisciplinary pain treatment improve pediatric headache-related disability?

Purpose: To examine the effectiveness of intensive interdisciplinary pain treatment for improving disability in children with chronic headache using the International Classification of Functioning, Disability and Health model as a conceptual framework for disability assessment.Materials and methods: Children with chronic headache (n = 50; ages 10-19 years; 62% female) attended an intensive interdisciplinary pain treatment program 8 h/day, 5 times/week for 2-7 weeks. Disability measures were administered at admission, discharge, and 6-8 week follow-up. Disability outcomes were analyzed retrospectively. Wilcoxon signed rank tests and Friedman's analyses of variance were used to compare scores across two and three longitudinal time points, respectively.Results: After rehabilitation, disability reduced on the Headache Impact Test-6 from severe impact at admission to some impact at follow-up (p < 0.001). Median time on the modified Bruce protocol increased from 13.1 min (interquartile range = 12.6-14.1) to 14.4 min (interquartile range = 12.9-16.3), p < 0.001, with gains maintained at follow-up. Improvements in pain and disability were associated with improvements in school participation.Conclusions: Findings of this study support the effectiveness of intensive interdisciplinary pain treatment for improving disability in children with chronic headache.Implication for rehabilitationIntensive interdisciplinary pain treatment is effective for improving pain and disability in children with chronic headaches.Application of the ICF model to disability assessment suggests that children with chronic headaches may experience significant disability, even when standardized assessments of physical capacity are normal.The modified Bruce protocol, Pediatric Evaluation of Disability Inventory - Computerized Adaptive Tests, and Headache Impact Test-6 appear particularly valuable in understanding the nature of disability in children with chronic headaches.

Readiness to Change among Adolescents with Chronic Pain and Their Parents: Is the German Version of the Pain Stages of Change Questionnaire a Useful Tool?

The Pain Stages of Change Questionnaire (PSOCQ) measures patients’ willingness to engage in active self-management of their pain. The present study aimed to create validated German short versions of the PSOCQ for adolescents (PSOCQ-A) and their parents (PSOCQ-P). Additionally, an investigation of stages of change regarding pain characteristics and treatment outcomes was undertaken. In Study 1, the data of adolescents aged 11 to 18 years and their parents were collected prior to intake (N = 501) and at admission (N = 240) to specialist inpatient pain treatment. Confirmatory factor analyses indicated a poor fit of the full PSOCQ measures prior to intake, but an acceptable fit at admission. Short PSOCQ-A and PSOCQ-P versions were identified. In Study 2, these results were cross-validated with data from an additional N = 150 patients and their parents, collected during and 3 months after interdisciplinary inpatient pain treatment. Model fits for both short versions were acceptable, although low internal consistency for the PSOCQ-A Precontemplation and Contemplation subscales was identified. During treatment, both patients’ and their parents’ readiness to change increased. Stage of change at discharge did not predict treatment non-response 3 months later. This study indicates that the PSOCQ is neither meaningful prior to admission nor predictive of non-response to treatment. While some value may exist in monitoring treatment progress, based on the results of this study, it is not recommended that the PSOCQ-A and PSOCQ-P be used as a measure of stage of change in German pediatric pain populations.

Prognostic factors for pain and functional disability in children and adolescents with persisting pain: A systematic review and meta-analysis

BACKGROUND AND OBJECTIVE

The aim of this study was to investigate prognostic factors for pain and functional disability in children and/or adolescents with persisting pain.

DATABASES AND DATA TREATMENT

To be included, studies had to be published, peer-reviewed prospective cohort studies of children and/or adolescents with persisting pain at baseline, that reported at least one baseline prognostic factor and its relationship with pain or functional disability at least 1 month after baseline. Two reviewers independently assessed study eligibility, completed data extraction and undertook quality assessment. Meta-analyses were performed when a prognostic factor was reported in two or more studies.

RESULTS

Of 10,992 studies identified from electronic database searches, 18 were included, investigating 62 potential prognostic factors. In clinical settings, insufficient data were available for meta-analysis. Some positive associations with pain and/or disability were reported by single studies for older age, baseline pain intensity and baseline functional disability across multiple combinations of follow-up times and outcomes. In community settings, meta-analyses of two studies found that prognostic factors for the ongoing presence of pain at medium-term (1-year) follow-up were older age (OR 1.25; 95% CI = 1.05-1.47), weekly day tiredness (OR 1.69; 95% CI = 1.14-2.51), weekly abdominal pain (OR 1.44; 95% CI = 1.03-2.02) and waking during the night (OR 1.49; 95% CI = 1.05-2.13). No studies in community settings reported on prognostic factors for functional disability.

CONCLUSIONS

Prognostic factors having significant associations with future pain and disability were identified; however, as few were investigated in more than one comparable study, the results need to be interpreted with caution.

SIGNIFICANCE

Prognostic factors from across the biopsychosocial spectrum are important to consider in paediatric pain clinical practice. However, most prognostic factors that experts have previously agreed upon have not been assessed in prospective cohort studies to date. The findings may help with prioritising data to collect during clinical assessments of children presenting with pain, in the context of pain and functional disability outcomes.

Differences Between Mothers' and Fathers' Perception of Their Adolescents' Pain Before and After Parent Training Through The Comfort Ability Pain Management Program

OBJECTIVE

To evaluate differences in how mothers and fathers perceive and respond to their adolescents' chronic pain before and after The Comfort Ability Program (CAP), a 1-day cognitive-behavioral intervention, and to compare outcomes between mother-father dyads and mothers who attended the intervention alone.

METHODS

Parents completed the Pain Catastrophizing Scale (PCS) and Helping for Health Inventory (HHI) at baseline (preintervention) and at 1 week, 1 month, and 3 months after intervention. Confirmatory factor analyses evaluated construct validity and invariances of the scales. Paired t tests compared scores between mothers and fathers. Unpaired t tests compared mother-father dyads (n = 33) and mothers who attended the intervention alone (n = 73).

RESULTS

PCS baseline showed significant construct instability between maternal and paternal interpretations. However, 1 week after intervention, construct stability improved between parents. On the PCS and HHI, in which lower scores represent more adaptive parenting behaviors, fathers scored significantly lower than mothers at baseline (PCS: 22.6 [7.7] vs 28.0 [11.4], p value = 0.033; HHI: 16.0 [8.1] vs 20.6 [9.6], p value = 0.029). At 3 months after intervention, PCS scores for both mothers and fathers significantly decreased from baseline (mothers: p value = 0.009; fathers: p value = 0.052) and converged (mothers: 18.6 [11.2] vs fathers: 18.3 [13.2]; p value = 0.786). Mother and father HHI scores were significantly lower at 3 months than baseline (mothers: 13.2 [9.5], p value = 0.005; fathers: 15.0 [12.7], p value = 0.017), although improvement of construct stability between parents was less evident.

CONCLUSION

Findings suggest that mothers and fathers may differentially perceive and respond to their adolescents' pain and that CAP parent-training intervention may help align their thinking. The results further demonstrate that both parents make adaptive changes after intervention, reinforcing the value of including both parents in pediatric treatment for chronic pain.

Developing a pediatric pain data repository

The management of pediatric pain typically consists of individualized treatment plans and interventions that have not been systematically evaluated. There is an emerging need to create systems that can support the translation of clinical discoveries, facilitate the assessment of current interventions, and improve the collection of patient-centered data beyond routine clinical information. We present the development of the pediatric pain data repository, a custom-built system developed at Boston Children’s Hospital by a multidisciplinary pain treatment service. The Repository employs a web platform to collect standardized patient-reported outcomes and integrates this with electronic medical record data. To date, we have collected information on 2577 patients and anticipate adding approximately 500 new patients per year. Major strengths of the Repository include collection of extensive longitudinal patient-reported outcomes, automated clinical data abstraction, and integration of the system into clinical workflows to support medical decision making.

Pain Management In Pediatric Patients With Postural Orthostatic Tachycardia Syndrome: Current Insights

Pediatric patients with postural orthostatic tachycardia syndrome (POTS) often present with co-occurring struggles with chronic pain (POTS+pain) that may limit daily activities. POTS is a clinical syndrome characterized by orthostatic symptoms and excessive postural tachycardia without orthostatic hypotension. Active research from the medical and scientific community has led to controversy over POTS diagnosis and treatment, yet patients continue to present with symptoms associated with POTS+pain, making treatment recommendations critical. This topical review examines the literature on diagnosing and treating pediatric POTS+pain and the challenges clinicians face. Most importantly, clinicians must employ an interdisciplinary team approach to determine the ideal combination of pharmacologic (e.g., fludrocortisone), non-pharmacologic (e.g., physical therapy, integrative medicine), and psychological (e.g., cognitive behavioral therapy, psychoeducation) treatment approaches that acknowledge the complexity of the child's condition, while simultaneously tailoring these approaches to the child's personal needs. We provide recommendations for treatment for youth with POTS+pain based on the current literature.

Moderators of Internet-Delivered Cognitive-Behavioral Therapy for Adolescents With Chronic Pain: Who Benefits From Treatment at Long-Term Follow-Up?

Cognitive behavioral therapy (CBT) is effective for pediatric chronic pain, but little is understood about which youth are most likely to benefit. The current study aimed to identify individual characteristics for which CBT yielded the greatest (and least) clinical benefit among adolescents with chronic pain participating in a multicenter randomized controlled trial of Internet-delivered CBT (WebMAP2). A total of 273 adolescents ages 11 to 17 with chronic pain (M age = 14.7; 75.1% female) were randomly assigned to Internet-delivered CBT or Internet-delivered pain education and evaluated at pretreatment, post-treatment, and 2 longer term follow-up periods (6 and 12 months). Multilevel growth models tested several adolescent- and parent-level moderators of change in pain-related disability including 1) adolescent age, sex, pain characteristics, distress, and sleep quality and 2) parent education level, distress, and protective parenting behavior. Younger adolescents (ages 11-14; vs older adolescents ages 15-17) and those whose parents experienced lower levels (vs higher levels) of emotional distress responded better to Internet CBT treatment, showing greater improvements in disability up to 12 months post-treatment. This study expands knowledge on who benefits most from Internet-delivered psychological treatment for youth with chronic pain in the context of a large multicenter randomized controlled trial, suggesting several avenues for maximizing treatment efficacy and durability in this population. PERSPECTIVE: This study identified adolescent- and parent-level predictors of treatment response to Internet-based CBT for pediatric chronic pain up to 12 months later. Younger adolescents and those whose parents had lower levels of distress may particularly benefit from this intervention. Older adolescents and those whose parents exhibit higher distress may require alternative treatment approaches.

Back to Living: Long-term Functional Status of Pediatric Patients Who Completed Intensive Interdisciplinary Pain Treatment

OBJECTIVES

To provide a descriptive account of long-term functioning (≥5 y posttreatment) among youth who completed intensive interdisciplinary pain treatment (IIPT) for pediatric chronic pain conditions.

MATERIALS AND METHODS

A total of 95 patients (mean age at follow-up=20.0 y) treated at least 5 years previously at a single IIPT program completed questionnaires assessing pain, functional disability, health care utilization, academic/career achievement, and quality of life. Data analyses focused on pain, functioning, and progress toward developmental goals at long-term follow-up.

RESULTS

The majority of respondents report significant reduction in pain compared with preadmission (P<0.001). Five years posttreatment, average functional disability scores were in the minimal range, with statistically significant decrease in functional disability from time of admission (P<0.001). Nearly 80% of respondents characterized themselves as having no functional difficulties at follow-up. Clinically significant improvement was established for both pain and function. Respondents generally reported developmentally appropriate status, with 89% graduating high school on schedule.

DISCUSSION

Results show long-term positive functioning among individuals who underwent intensive rehabilitation treatment for chronic pain as children or adolescents. Despite experiencing one or more pain flares at some point after treatment, most former IIPT patients report minimal to no ongoing functional disability, complete or partial resolution of pain symptoms, and developmentally appropriate progress toward goals (eg, school completion, independent living).

Adolescent and Parent Experiences of Acceptance and Commitment Therapy for Pediatric Chronic Pain: An Interpretative Phenomenological Analysis

Pediatric chronic pain is common and can be related to reduced functioning in many domains for the young person and their parents. Existing psychological treatments such as Acceptance and Commitment Therapy (ACT) have shown to be effective, but improvements are needed. Qualitative approaches can help improve our understanding of treatment processes and outcomes. The aim of the present qualitative interview study was to explore the lived experiences of young people and parents who had participated in ACT for pediatric chronic pain. Four young persons and four parents were interviewed, and data was analyzed using Interpretative Phenomenological Analysis (IPA). Three themes were generated, each comprising two subthemes: (1) 'Warning system', which included experiences from being offered this psychological intervention, and the alternative explanations provided for pain; (2) 'Change and challenges', which suggested the importance of the values-based work, and of individual adaptation; and (3) 'A common language' in which the interaction with others and new ways to communicate around the pain experience were described. Findings highlight the importance of pain education, formulating and acting in line with personal values, and communication around the pain experience, as well as the need for developmental and individual adaptations of interventions.

Best-Evidence for the Rehabilitation of Chronic Pain Part 1: Pediatric Pain

Chronic pain is a prevalent and persistent problem in middle childhood and adolescence. The biopsychosocial model of pain, which accounts for the complex interplay of the biological, psychological, social, and environmental factors that contribute to and maintain pain symptoms and related disability has guided our understanding and treatment of pediatric pain. Consequently, many interventions for chronic pain are within the realm of rehabilitation, based on the premise that behavior has a broad and central role in pain management. These treatments are typically delivered by one or more providers in medicine, nursing, psychology, physical therapy, and/or occupational therapy. Current data suggest that multidisciplinary treatment is important, with intensive interdisciplinary pain rehabilitation (IIPT) being effective at reducing disability for patients with high levels of functional disability. The following review describes the current state of the art of rehabilitation approaches to treat persistent pain in children and adolescents. Several emerging areas of interventions are also highlighted to guide future research and clinical practice.

Effectiveness of interdisciplinary interventions in paediatric chronic pain management: a systematic review and subset meta-analysis

BACKGROUND

Paediatric chronic pain is a significant problem that can have devastating impacts on quality of life. Multimodal interdisciplinary interventions are the mainstay of paediatric treatment. The aim of this article is to provide a comprehensive review of the effectiveness of interdisciplinary interventions in the management of paediatric chronic pain.

METHODS

Studies were identified via a search of nine databases. The search strategy included concept blocks pertaining to type of pain, study population, and type of intervention. Eligible studies reported the effects of an intervention co-ordinated by two or more healthcare professionals of different disciplines, and recruited a sample aged 22 yr or below with chronic pain. Twenty-eight studies were included, and 21 provided data for inclusion in between- and within-groups meta-analyses.

RESULTS

Patients randomised to interdisciplinary interventions reported significantly lower pain intensity 0-1 month post-intervention compared with patients randomised to the control groups. Within-groups analysis of patients receiving interdisciplinary interventions showed significant improvements pre- to post-intervention in pain intensity, functional disability, anxiety, depression, catastrophising, school attendance, school functioning, and pain acceptance. Few differences were found between interventions delivered in inpatient vs outpatient settings. Significant heterogeneity due mainly to differing outcome variables and intervention content was found in most analyses.

CONCLUSIONS

Overall, interdisciplinary interventions show promise in providing a range of clinical benefits for children with chronic pain. Methodologically robust randomised controlled trials using standardised outcome measures are needed, however, to guide clinical care.

Optimizing Expectations via Mobile Apps: A New Approach for Examining and Enhancing Placebo Effects

There is growing interest in interventions that enhance placebo responses in clinical practice, given the possibility that this would lead to better patient health and more effective therapy outcomes. Previous studies suggest that placebo effects can be maximized by optimizing patients' outcome expectations. However, expectancy interventions are difficult to validate because of methodological challenges, such as reliable blinding of the clinician providing the intervention. Here we propose a novel approach using mobile apps that can provide highly standardized expectancy interventions in a blinded manner, while at the same time assessing data in everyday life using experience sampling methodology (e.g., symptom severity, expectations) and data from smartphone sensors. Methodological advantages include: 1) full standardization; 2) reliable blinding and randomization; 3) disentangling expectation effects from other factors associated with face-to-face interventions; 4) assessing short-term (days), long-term (months), and cumulative effects of expectancy interventions; and 5) investigating possible mechanisms of change. Randomization and expectancy interventions can be realized by the app (e.g., after the clinic/lab visit). As a result, studies can be blinded without the possibility for the clinician to influence study outcomes. Possible app-based expectancy interventions include, for example, verbal suggestions and imagery exercises, although a large number of possible interventions (e.g., hypnosis) could be evaluated using this innovative approach.

When pain gets stuck: the evolution of pain chronification and treatment resistance

It is well-recognized that, despite similar pain characteristics, some people with chronic pain recover, whereas others do not. In this review, we discuss possible contributions and interactions of biological, social, and psychological perturbations that underlie the evolution of treatment-resistant chronic pain. Behavior and brain are intimately implicated in the production and maintenance of perception. Our understandings of potential mechanisms that produce or exacerbate persistent pain remain relatively unclear. We provide an overview of these interactions and how differences in relative contribution of dimensions such as stress, age, genetics, environment, and immune responsivity may produce different risk profiles for disease development, pain severity, and chronicity. We propose the concept of "stickiness" as a soubriquet for capturing the multiple influences on the persistence of pain and pain behavior, and their stubborn resistance to therapeutic intervention. We then focus on the neurobiology of reward and aversion to address how alterations in synaptic complexity, neural networks, and systems (eg, opioidergic and dopaminergic) may contribute to pain stickiness. Finally, we propose an integration of the neurobiological with what is known about environmental and social demands on pain behavior and explore treatment approaches based on the nature of the individual's vulnerability to or protection from allostatic load.

The Pivotal Role of Pediatric Psychology in Chronic Pain: Opportunities for Informing and Promoting New Research and Intervention in a Shifting Healthcare Landscape

PURPOSE OF REVIEW

In the context of new efforts to formulate more comprehensive diagnostic and treatment processes for chronic pain conditions, this review aims to provide an overview of some of the most salient developments in the diagnosis and clinical treatment of pediatric chronic pain and to delineate the current and future role of clinical pediatric psychologists in these efforts.

RECENT FINDINGS

The acceptance and promotion of the multidisciplinary approach to pediatric pain management has had an especially significant impact on the field of pediatric psychology. Though chronic pain was historically conceptualized as a biomedical problem, psychology is increasingly viewed as a routine, integral, and component part of treatment. With this evolving biopsychosocial paradigm, pediatric psychology is poised to help shape the development of this field, contributing to emerging conceptual and diagnostic frameworks via consultation, research, clinical care, and education. This review discusses the role of pediatric psychologists as collaborators in emerging diagnostic and assessment frameworks, leaders in pain-related research, drivers of clinical care, and educators for providers, patients, and the lay public. With increased opportunities to enhance the conceptualization and treatment of pediatric pain, pediatric psychologists have an important role to play in reducing the prevalence and persistence of pediatric pain.

Transitioning from Acute to Chronic Pain: An Examination of Different Trajectories of Low-Back Pain

Traditionally, there has been a widely accepted notion that the transition from acute to chronic pain follows a linear trajectory, where an injury leads to acute episodes, subacute stages, and progresses to a chronic pain condition. However, it appears that pain progression is much more complicated and individualized than this original unsupported assumption. It is now becoming apparent that, while this linear progression may occur, it is not the only path that pain, specifically low-back pain, follows. It is clear there is a definite need to evaluate how low-back pain trajectories are classified and, subsequently, how we can more effectively intervene during these progression stages. In order to better understand and manage pain conditions, we must examine the different pain trajectories, and develop a standard by which to use these classifications, so that clinicians can better identify and predict patient-needs and customize treatments for maximum efficacy. The present article examines the most recent trajectory research, and highlights the importance of developing a broader model for patient evaluation.