Susan T. Tran

Distinct Influences of Anxiety and Pain Catastrophizing on Functional Outcomes in Children and Adolescents With Chronic Pain

OBJECTIVES Examine whether anxiety and pain catastrophizing are distinct constructs in relation to functional outcomes in pediatric chronic pain, and whether they differentially predict functional outcomes based on age. METHODS In all, 725 youth (191 children, 534 adolescents) with chronic pain completed measures of pain characteristics, anxiety, pain catastrophizing, functional disability, and health-related quality of life (HRQOL). Structural equation modeling was used to examine interrelationships. RESULTS Anxiety and pain catastrophizing were distinct. For both children and adolescents, pain catastrophizing predicted pain, functional disability, and HRQOL, and was a stronger predictor of pain intensity. For children, anxiety predicted HRQOL, and pain catastrophizing was a stronger predictor of functional disability. For adolescents, anxiety predicted functional disability and HRQOL, and anxiety was a stronger predictor of HRQOL. CONCLUSIONS There were age-related differences regarding whether anxiety or pain catastrophizing more strongly predicted specific functional outcomes. Assessment and intervention efforts should emphasize both anxiety and pain catastrophizing.

Pain Catastrophizing in Youths With Physical Disabilities and Chronic Pain

OBJECTIVE The current study examined the associations between catastrophizing and pain intensity, psychological adjustment, functional ability, and community participation in youths with physical disability and chronic pain. METHODS Participants consisted of 80 youths, aged 8-20 years, with cerebral palsy (n = 34), neuromuscular disease (n = 22), or spina bifida (n = 24). Measures from a cross-sectional survey included demographic, pain, and disability information, the Pain Catastrophizing Scale, the Child Health Questionnaire, and the Functional Disability Inventory. RESULTS Results suggested that catastrophizing was significantly associated with pain intensity and psychological adjustment; however, catastrophizing did not demonstrate significant associations with functional ability or community participation. CONCLUSIONS The study extends previous findings of significant associations between catastrophizing and both pain intensity and psychological adjustment to samples of youths with chronic pain and disabilities not previously examined. Further research that examines the causal association between catastrophizing and outcomes in youths with chronic pain and physical disability is warranted.

Anxiety Adversely Impacts Response to Cognitive Behavioral Therapy in Children with Chronic Pain.

OBJECTIVE To evaluate whether clinical anxiety in children presenting to a pediatric pain management center is associated with a poorer treatment response for those who completed pain-focused cognitive behavioral therapy (CBT). STUDY DESIGN The total sample consisted of 175 children, 40 of whom completed CBT for chronic pain. The Screen for Child Anxiety Related Emotional Disorders was completed at initial evaluation and outcome measures (average pain intensity and the Functional Disability Inventory) were collected during the initial evaluation and at the end of CBT. Group differences in outcomes were examined following CBT. The role of anxiety in CBT initiation and completion was also explored. RESULTS Presence of clinical anxiety was associated with greater initiation and/or completion of pain-focused CBT but also a poorer treatment response. Specifically, the group with subclinical anxiety exhibited a substantial reduction in pain intensity, and the group with clinical anxiety exhibited a more limited response to treatment (F [1, 36] = 13.68 P < .01). A similar effect was observed for Functional Disability Inventory, such that the group with clinical anxiety had a significantly smaller response to treatment (F [1, 38] = 4.33 P < .05). The difference in pain and disability between groups following CBT suggest moderate effects (Cohen d = 0.77 and 0.78, respectively). CONCLUSIONS Although youths with clinical anxiety are more likely to start and/or complete pain-focused CBT, anxiety has an adverse impact on CBT treatment response in children with chronic pain. Identification of patients with anxiety and use of tailored behavioral interventions may improve clinical outcomes.

A Qualitative Examination of a New Combined Cognitive-Behavioral and Neuromuscular Training Intervention for Juvenile Fibromyalgia.

Objectives:Adolescents with juvenile fibromyalgia (JFM) are typically sedentary despite recommendations for physical exercise, a key component of pain management. Interventions such as cognitive-behavior therapy (CBT) are beneficial but do not improve exercise participation. The objective of this study was to obtain preliminary information about the feasibility, safety, and acceptability of a new intervention—Fibromyalgia Integrative Training for Teens (FIT Teens), which combines CBT with specialized neuromuscular exercise training modified from evidence-based injury prevention protocols. Materials and Methods:Participants were 17 adolescent females (aged 12 to 18 y) with JFM. Of these, 11 completed the 8-week (16 sessions) FIT Teens program in a small-group format with 3 to 4 patients per group. Patients provided detailed qualitative feedback via individual semistructured interviews after treatment. Interview content was coded using thematic analysis. Interventionist feedback about treatment implementation was also obtained. Results:The intervention was found to be feasible, well tolerated, and safe for JFM patients. Barriers to enrollment (50% of those approached) included difficulties with transportation or time conflicts. Treatment completers enjoyed the group format and reported increased self-efficacy, strength, and motivation to exercise. Participants also reported decreased pain and increased energy levels. Feedback from participants and interventionists was incorporated into a final treatment manual to be used in a future trial. Discussion:Results of this study provided initial support for the new FIT Teens program. An integrative strategy of combining pain coping skills via CBT enhanced with tailored exercise specifically designed to improve confidence in movement and improving activity participation holds promise in the management of JFM.

Predicting Multiple Facets of School Functioning in Pediatric Chronic Pain: Examining the Direct Impact of Anxiety.

Objectives:The relationships among chronic pain, anxiety, and school functioning are complex, and school functioning is often negatively impacted in youth with chronic pain. The objective of this study was to empirically test a model of associations between constructs predicting school functioning in youth with chronic pain to examine the direct effect of anxiety on school attendance and other indicators of school-related disability. Materials and Methods:Participants included 349 youth and their parents (311 mothers and 162 fathers) who attended a multidisciplinary pain clinic. Youth, mothers, fathers, and clinicians completed assessments of clinical outcomes important to family and clinician perceptions of school functioning; youth, mothers, and fathers completed an assessment of youth anxiety. Structural equation modeling was used to examine interrelations among predictors. Results:Measurement and structural models for predicting youth school functioning provided a very good fit of the data to the conceptual model. Anxiety was directly related to problems with school attendance and avoidance, concentration, and keeping up with schoolwork. Discussion:Anxiety was a robust predictor of school functioning across a range of domains. Evaluating anxiety symptoms in pediatric chronic pain will likely facilitate case conceptualization and treatment planning. This study supports a shift in focus from pain to anxiety as the driving force of school impairment in youth with chronic pain.

Preliminary outcomes of a cross‐site cognitive‐behavioral and neuromuscular integrative training intervention for juvenile fibromyalgia

Cognitive–behavioral therapy (CBT) is effective in reducing disability among youth with juvenile fibromyalgia (FM); however, engagement in moderate to vigorous physical activity remains poor, even after CBT. The purpose of this study was to evaluate the feasibility and preliminary outcomes of an innovative program combining CBT with specialized neuromuscular exercise: the Fibromyalgia Integrative Training for Teens (FIT Teens) program.

A pilot study of biomechanical assessment before and after an integrative training program for adolescents with juvenile fibromyalgia.

BackgroundAdolescents with juvenile fibromyalgia (JFM) tend to be very sedentary and avoid participation in physical activity. A prior study suggested that JFM patients show altered biomechanics compared to healthy adolescents which may make them more prone to pain/injury during exercise. A new intervention combining well established cognitive behavioral therapy (CBT) techniques with specialized neuromuscular exercise —Fibromyalgia Integrative Training for Teens (FIT Teens) was developed and shown to be promising in improving functioning in adolescents with JFM. In contrast to traditional exercise programs such as aerobic or resistance training, neuromuscular training is a tailored approach which targets gait, posture, balance and movement mechanics which form the foundation for safe exercise participation with reduced risk for injury or pain (and hence more tolerable by JFM patients). The aim of this pilot feasibility study was to establish whether objective biomechanical assessment including sophisticated 3-D motion analysis would be useful in measuring improvements in strength, balance, gait, and functional performance after participation in the 8-week FIT Teens program.MethodsEleven female participants with JFM (ages 12–18 years) completed pre- and post-treatment assessments of biomechanics, including walking gait analysis, lower extremity strength assessment, functional performance, and dynamic postural stability.ResultsDescriptive data indicated that mechanics of walking gait and functional performance appeared to improve after treatment. Hip abduction strength and dynamic postural control also demonstrated improvements bilaterally.ConclusionsOverall, the results of this pilot study offer initial evidence for the utility of biomechanical assessment to objectively demonstrate observable changes in biomechanical performance after an integrated training intervention for youth with JFM. If replicated in larger controlled studies, findings would suggest that through the FIT Teens intervention, adolescents with JFM can progress towards normalized strength and biomechanics, which may enhance their ability to engage in physical exercise.

Pain reports in children and adolescents with type 1 diabetes mellitus

The purpose of this study is to examine prevalence rates of pain reports in youth with type 1 diabetes mellitus (T1DM) and potential predictors of pain. Pain is a common and debilitating symptom of diabetic polyneuropathies. There is currently little research regarding pain in youth with T1DM. It was predicted that self-care and general health factors would predict pain as suggested by the general pain literature. Participants (N = 269) ranged in age from 13 to 17 years; youth had a mean time since diagnosis of 5.8 years. Data collected included diabetes self-management variables, ratings of the patient’s current functioning and pain intensity (‘current’), and information collected about experiences that occurred in the time preceding each appointment (‘interim’). About half of the youth (n = 121, 49.0%) reported any interim pain across both appointments. Female adolescents and those individuals who were physically active and/or utilized health-care system more acutely were more likely to report interim central nervous system pain. Improved diabetes self-management and increased level of physical activity may reduce experiences of pain and increase the quality of life of youth with T1DM. Regular monitoring of both current and interim pain experiences of youth with T1DM is recommended.

Long-term outcomes of adolescents with juvenile-onset fibromyalgia into adulthood, and impact of depressive symptoms on functioning over time

Abstract Juvenile-onset fibromyalgia (JFM) is typically diagnosed in adolescence and characterized by widespread pain and marked functional impairment. The long-term impact of JFM into adulthood is poorly understood. The objectives of this study were to describe physical and psychosocial outcomes of youth diagnosed with JFM in early adulthood (∼8-year follow-up), examine longitudinal trajectories of pain and depressive symptoms from adolescence to young adulthood, and examine the impact of pain and depressive symptoms on physical functioning over time. Participants were 97 youth with JFM enrolled in a prospective longitudinal study in which pain symptoms, and physical and psychosocial functioning were assessed at 4 time points over approximately 8 years. At the time 4 follow-up (Mage = 24.2 years), the majority continued to suffer from pain and impairment in physical, social, and psychological domains. However, trajectories of pain and emotional symptoms showed varying patterns. Longitudinal analysis using growth mixture modeling revealed 2 pain trajectories (Steady Improvement and Rapid Rebounding Improvement), whereas depressive symptoms followed 3 distinct trajectories (Low-Stable, Improving, and Worsening). Membership in the Worsening Depressive symptoms group was associated with poorer physical functioning over time (P < 0.001) compared with the Low-Stable and Improving groups. This study offers evidence that although JFM symptoms persist for most individuals, pain severity tends to decrease over time. However, depressive symptoms follow distinct trajectories that indicate subgroups of JFM. In particular, JFM patients with worsening depressive symptoms showed decreasing physical functioning and may require more intensive and consistent intervention to prevent long-term disability.