Post-traumatic stress symptoms in children and adolescents with chronic pain: A topical review of the literature and a proposed framework for future research

BACKGROUND AND OBJECTIVE

The co-occurrence of chronic pain and post-traumatic stress symptoms (PTSS) and post-traumatic stress disorder (PTSD) has gained increasing research attention. Studies on associations among pain and PTSS or PTSD in youth have largely been conducted in the context of acute injury or trauma. Less is known about the risk for co-occurrence with paediatric chronic pain. In this review, we (1) propose a conceptual framework to outline factors salient during childhood that may be associated with symptom severity, co-occurrence and mutual maintenance, (2) present relevant literature on PTSS in youth with acute and chronic pain and identify research gaps and (3) provide recommendations to guide paediatric research examining shared symptomatology.

DATABASES AND DATA TREATMENT

Electronic databases (PubMed and Google Scholar) were used to identify relevant articles using the search terms 'child, adolescent, paediatric, chronic pain, acute pain, post-traumatic stress symptoms and post-traumatic stress disorder'. Studies were retrieved and reviewed based on relevance to the topic.

RESULTS

Our findings revealed that existing biobehavioural and ecological models of paediatric chronic pain lack attention to traumatic events or the potential development of PTSS. Paediatric studies are also limited by lack of a conceptual framework for understanding the prevalence, risk and trajectories of PTSS in youth with chronic pain.

CONCLUSIONS

Our new developmentally informed framework highlights individual symptoms and shared contextual factors that are important when examining potential associations among paediatric chronic pain and PTSS. Future studies should consider bidirectional and mutually maintaining associations, which will be aided by prospective, longitudinal designs. WHAT DOES THIS REVIEW ADD?: This review presents relevant literature on pain and PTSS in youth and proposes a conceptual framework to examine factors salient during childhood that may be associated with symptom severity, comorbidity and mutual maintenance of chronic pain and PTSS in paediatric populations. We highlight dynamic factors that may change across children's development and provide recommendations to guide paediatric research examining potential associations among PTSS and chronic pain.

Using the PHQ-9 and GAD-7 to screen for acute distress in transgender youth: findings from a pediatric endocrinology clinic

Background Transgender and gender nonconforming (TGNC) youth are at higher risk for anxiety and depression than their peers. The referral rate for those seeking specialty medical care has rapidly increased in recent years. This paper examines the use of brief screening tools with clear cutoffs to assist physicians in rapidly identifying TGNC youth in acute distress. Methods A retrospective chart review was conducted for patients aged 11-18 years being treated in a pediatric endocrinology clinic for gender dysphoria. Patient Health Questionnaires for depression (PHQ-9) and Generalized Anxiety Disorder 7-item (GAD-7) were collected for patients attending an initial consultation (n=79) or follow-up appointment (n=115). Results Screener data identified high rates of acute distress, including depression (47%), anxiety (61%), and suicidal ideation (30%). Distress was not associated with age or gender identity. More youth endorsed clinically significant anxiety at initial consultation appointments versus follow-up appointments. Conclusions The results support the use of the PHQ-9 and GAD-7 as brief, easy-to-use screening measures that can be administered by physicians to rapidly identify acute distress and inform treatment recommendations among TGNC youth seeking medical intervention.

Default mode network connectivity is related to pain frequency and intensity in adolescents

•

Pain symptoms in adolescents are associated with default mode network connectivity.

•

More frequent pain is associated with more connectivity to the superior frontal gyrus.

•

Higher pain intensity is associated with less connectivity to the cerebellum.

Pain during adolescence is common and is associated with future pain chronicity and mental health in adulthood. However, understanding of the neural underpinnings of chronic pain has largely come from studies in adults, with recent studies in adolescents suggesting potentially unique neural features during this vulnerable developmental period. In addition to alterations in the pain network, resting state functional magnetic resonance imaging studies in adults suggest alterations in the default mode network (DMN), involved in internally-driven, self-referential thought, may underlie chronic pain; however, these findings have yet to be examined in adolescents. The current study sought to investigate associations between pain frequency and intensity, and disruptions in DMN connectivity, in adolescents. Adolescents (ages 12–20) with varying levels of pain frequency and intensity, recruited from a pediatric pain clinic and the local community (n = 86; 60% female), underwent resting state functional magnetic resonance imaging. Using independent components analysis, the DMN was identified and correlated voxel-wise to assess associations between pain frequency and intensity and DMN connectivity. Findings revealed that adolescents with greater pain frequency demonstrated greater DMN to superior frontal gyrus connectivity, while adolescents with greater pain intensity demonstrated lesser DMN to cerebellum (lobule VIII) connectivity, during rest. These findings suggest that increasing levels of pain are associated with potential desegregation of the DMN and the prefrontal cortex, important for cognitive control, and with novel patterns of DMN to cerebellum connectivity. These findings may prove beneficial as neurobiological targets for future treatment efforts in adolescents.

Changes in Anxiety and Depression from Intake to First Follow-Up Among Transgender Youth in a Pediatric Endocrinology Clinic

Monitoring acute distress in transgender youth initiating gender-affirming care is important given their increased risk for significant mental health symptoms. The current study examined changes in anxiety, depression, and suicidality from initial appointment to first follow-up in 80 youth, ages 11-18. Average time between visits was ∼4 months but varied across participants. Results revealed no change in acute distress from intake to follow-up. Neither distance from medical center nor initiation of hormone therapy was associated with symptom changes. While research shows decreased distress with initiation of hormones, study findings suggest changes may actually take longer to occur.

Use of the PROMIS-29® to identify subgroups of mothers with chronic pain

OBJECTIVE

Children of mothers with chronic pain are at increased risk for poor health, but few studies have examined what characteristics of maternal chronic pain may be associated with children's risk. This study identified subgroups of mothers based on patterns of pain, physical function, and emotional function on the 29-item Patient-Reported Outcomes Measurement Information System® (PROMIS-29®) and evaluated associations between maternal subgroups and children's pain and emotional functioning.

METHODS

Mothers with chronic pain (n = 334) completed the PROMIS-29® and reported on pain intensity, pain interference, physical functioning, anxiety, depression, fatigue, sleep disturbance, and participation in social activities. Mothers and their school-age children also completed measures of child pain and emotional functioning.

RESULTS

Latent profile analysis of PROMIS® domains indicated a 4-class solution (Group 1: 13.5%, Group 2: 9.9%, Group 3: 43.5%, and Group 4: 32.9%). Group 4 reported the most severe pain, psychological distress, and sleep disturbances and the lowest functioning. Group 1 reported the lowest pain, psychological distress, and sleep disturbances and the highest functioning, while Groups 2 and 3 represented moderate symptoms. Groups significantly differed on maternal reports of children's pain frequency, but not intensity, and children's self-reported somatic symptoms. Further, child depressive symptoms (mother-proxy and self-reported), anxiety (mother-proxy reported), and pain catastrophizing (self-reported) differed by maternal group.

CONCLUSIONS

Patterns of maternal symptoms and functioning were associated with pain frequency and emotional symptoms in children. Further examination of individual differences in mothers with chronic pain that may confer risk for chronic pain and psychological disorders in children is warranted. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

The Pediatric Pain Screening Tool (PPST) can Rapidly Identify Elevated Pain and Psychosocial Symptomatology in Treatment-Seeking Youth with Acute Musculoskeletal Pain

This cross-sectional study examines the utility of the Pediatric Pain Screening Tool (PPST) for rapidly assessing pain and psychosocial symptomatology in treatment-seeking youth with acute musculoskeletal pain. Participants were 166 youth (10-18 years, 53.6% female) participating in one of two larger cohort studies of youth with acute musculoskeletal pain. Youth completed the PPST and measures of pain, pain-related fear, pain catastrophizing, pain-related disability, and sleep quality. Participants were categorized into PPST risk groups using published cut-offs. ANOVA and chi-square examined associations between PPST risk groups and self-report measures; receiver operating characteristic (ROC) analyses examined associations among PPST scores and clinical reference cut-offs. The PPST classified 28.3% of youth as high, 23.5% as moderate, and 48.2% as low-risk. Females were more likely to be high-risk. ANOVAs revealed differences in clinical factors by PPST risk group particularly differences among youth labeled high versus low-risk. ROC analyses showed the PPST is effective in discriminating "cases" versus "non-cases" on pain-related disability, pain-fear and catastrophizing. Results reveal the PPST is effective for rapidly screening youth with acute pain for pain and psychosocial symptomatology. An important next step will be to examine the validity of the PPST in predicting recovery outcomes of acute pain samples. PERSPECTIVE: This article presents the Pediatric Pain Screening Tool (PPST) as a measure for rapidly screening youth with acute pain for pain and psychosocial symptomatology. The tool categorizes youth into low, moderate or high-risk groups and discriminates among those with versus without clinically significant levels of disability, pain-related fear and catastrophizing.

A Pilot Study Examining Neural Response to Pain in Adolescents With and Without Chronic Pain

Introduction: Chronic pain is common in adolescence and is associated with both pain and prevalence of mental illness later in life. While previous functional neuroimaging work has informed knowledge of neural alterations associated with chronic pain, these findings have been primarily limited to adult samples, and it is unclear if similar patterns of altered brain activation are present in the developing adolescent brain.

Objectives: The purpose of this study was to pilot a noxious pressure task during functional neuroimaging to assess brain response to pain in adolescents with and without chronic pain.

Methods: Adolescents (ages 11–16) with (n = 9, 7 females) and without (n = 9, 7 females) chronic pain, matched on age, sex, IQ, and parental history of chronic pain, completed a noxious mechanical pressure task to assess subjective pain thresholds. This was followed by randomized presentation of subjective equivalent pressure applications (adolescents' pain 4/0–10), and two objectively equivalent pressures (0.25 and 1.5 kg/cm²), during functional magnetic resonance imaging, using an event-related task design.

Results: Findings revealed that adolescents with chronic pain demonstrated significantly greater activation in the posterior cingulate compared to controls. Further, all adolescents demonstrated significant pain-related brain response in brain regions implicated in pain neurocircuitry, as well as in several regions of the default mode network. Similar patterns of neural response were also noted during pain anticipation.

Conclusion: These findings are important for not only understanding the neurocircuitry involved in adolescent chronic pain, but may prove beneficial to future pain treatment efforts that seek to alter pain neurocircuitry.

Patterns of opioid use in adolescents receiving prescriptions: The role of psychological and pain factors

In the United States, adolescents are routinely prescribed opioids for management of pain. Data suggest that early opioid use, even via a legitimate prescription, can increase risk for opioid misuse. There are surprisingly little data on the nature of pain medication prescribing within pediatric medical settings and adolescent outcomes despite this being the place most youth are introduced to prescription opioids. To address this gap, the current study recruited n = 139 adolescents ages 14-18 years who were prescribed opioid medications for acute noncancer pain in pediatric outpatient medical settings. Data on opioid use and mood symptoms were obtained via daily diaries and self-report measures. The majority of youth (90.9%) filled the opioid prescription, and of those who used those opioids, the frequency of use varied widely (10-100% of days). There were no gender differences in the percent of opioid use days, despite females reporting higher pain and mood symptoms than males. Greater pain experiences and the number of pills prescribed were positively associated with opioid use as reported in daily diaries. As hypothesized, higher depressive symptoms were associated with greater opioid use. Higher daily reports of worried or scared affect were associated with lower opioid use. Findings contribute to our understanding of adolescent opioid use following prescription in a pediatric outpatient medical setting. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Pain, Physical, and Psychosocial Functioning in Adolescents at Risk for Developing Chronic Pain: A Longitudinal Case-Control Stusdy

This longitudinal case-control study aims to 1) compare symptoms and functioning in otherwise healthy adolescents with versus without a parent with chronic pain (Parent CP+/Parent CP-) 2) test adolescent sex as a moderator of the relation between parent CP group and child functioning, and 3) determine changes in adolescent pain over 1 year. Adolescents (n = 140; ages 11-15) completed tests of pain responsivity and physical function, as well as self-report measures assessing pain characteristics, somatic symptoms, and physical and psychosocial functioning. Self-reported pain and somatic symptoms were reassessed 1 year later. Adolescents in the Parent CP+ group reported greater pain, somatic symptoms, and worse physical health than Parent CP- youth. Parent CP+ youth performed worse on all tests of physical function. Some observed effects were stronger for girls than boys. There were no differences between groups on pain responsivity. Both groups reported increased pain and somatic symptoms from baseline to 1-year follow-up, with the Parent CP+ group reporting the highest level of symptoms at both time points. This study highlights the potential impact of parental pain status on children, particularly daughters, and is the first to document objective physical functioning differences in youth at risk for developing chronic pain. PERSPECTIVE: Adolescents who have a parent with chronic pain demonstrate higher pain and lower physical function than adolescents who have a parent without chronic pain. Group differences in pain and somatic symptoms persist over 1 year. Family based interventions are needed for comprehensive pain prevention and treatment.

Daily and Weekly Associations Among Pain Intensity, Self-Reported Activity Limitations, and Objectively Assessed Physical Activity in Youth With Acute Musculoskeletal Pain

Monitoring recovery during acute pain episodes is useful for identifying youth at risk for pain persisting. Subjective and objective measures can assess function postinjury, but associations among these different measures and pain patterns in the acute period are unknown. To fill this gap, we examined associations among self-reported activity limitations, objectively measured physical activity, and pain intensity in 176 youth (age 11-17, 46% male) seeking health care for acute musculoskeletal pain. Participants completed 7-day electronic diaries rating daily pain intensity and activity limitations (Child Activity Limitations Interview [CALI]) while concurrently wearing an Actiwatch to record physical activity. The results revealed youth reported pain on 47.8% of days with an average intensity of 33.4 (0-100). Averaged across the week, between-participant analyses showed greater activity limitations were associated with lower mean (rActive = -.204, rRoutine = -.159, P < .05) and peak activity (rActive = -.291, rRoutine = -.184, P < .05). Same-day correlations between CALI scores and physical activity measures within participants were not significant. Linear mixed-effects models revealed higher daily pain intensity was associated with greater self-reported activity limitations on Routine (β = .23, P < .001) and Active CALI-9 subscales (β = .07, P < .001). Conversely, higher daily pain was associated with higher activity on actigraphy, specifically higher mean activity (β = .46, P < .01), more activity bouts (β = .013, P < .01), more time in light activity (β = .04, P < .01), and less sedentary time (β = -.04, P < .01). Taken together, self-reported activity limitations and objective physical activity represent 2 distinct, yet related, aspects of physical functioning associated with pain. Future work should examine how physical activity and activity limitations change longitudinally and predict pain persistence. PERSPECTIVE: This study examined daily associations between pain intensity, self-reported activity limitations, and objectively assessed physical activity in youth during the acute recovery period following a musculoskeletal injury. Self-reported activity limitations and objective physical activity represent 2 distinct, yet related, aspects of physical functioning that are associated with pain.

Clinical and Demographic Factors Associated with Receiving an Opioid Prescription following Admission to the Pediatric Intensive Care Unit

Opioids are commonly used to treat pain in the pediatric intensive care unit (PICU), and many children receive opioid prescription(s) at discharge. The frequency of opioid prescriptions at discharge and associations with individual characteristics and clinical factors are unknown. This study aimed to identify (1) the number of children who receive an opioid prescription at PICU discharge and (2) the demographic and clinical factors associated with receiving an opioid prescription. Data were collected via the electronic medical record. The sample was 3345 children (birth to 18 years) admitted to the PICU and discharged to home or an inpatient rehabilitation setting. In total, 23.7% of children were prescribed an opioid at discharge. There were group differences in who received opioid prescriptions (yes/no) related to PICU diagnosis, length of hospital stay, number of days on mechanical ventilation, number of previous hospitalizations, organ dysfunction score, and admission type (surgical versus non-surgical). Binary logistic regression models examined predictors of opioid prescription at discharge for the total sample and diagnostic subgroups. Older age and surgical admission type were the most consistent predictors of receiving an opioid prescription. Future research should examine prescription usage patterns and how use of opioids is associated with pain and functional outcomes over time.

Using the Parent Risk Screening Measure (PRISM) to Assess Pain-Related Risk Factors in Parents of Youth Seeking Treatment for Acute Musculoskeletal Pain

OBJECTIVES

The Parent Risk Screening Measure (PRISM) rapidly assesses parent distress, psychosocial function, and behaviors associated with child pain-related dysfunction in parents of youth with chronic pain. Recognizing the importance of parent pain-related cognitions and responses to pain during the acute pain period, the current study examined the utility of the PRISM in screening parents of youth with acute pain.

METHODS

Participants were 175 parent-youth dyads taking part in a larger study examining risk and resilience in youth with acute musculoskeletal pain. Parents completed the PRISM and a battery of measures reporting on their child's pain-related disability and cognitions and behaviors in response to their child's pain. Youth reported on their pain, pain-related disability, pain-related fear, catastrophizing, and pain self-efficacy.

RESULTS

PRISM total scores ( M =2.55, SD=2.77) were correlated with many parent and child report measures (eg, protectiveness, catastrophizing, and pain-related fear), with higher scores associated with greater symptoms. Using published PRISM cutoffs, 86.9% of parents were classified as low and 13.13% as elevated risk. t tests revealed significant differences between elevated and low-risk groups on several measures. Moreover, youth of parents in the elevated risk group were more likely to meet clinical cutoffs on pain catastrophizing and fear avoidance measures.

DISCUSSION

Findings suggest the PRISM is useful in screening for parent distress and behaviors associated with elevated pain symptomatology in a pediatric acute musculoskeletal pain sample. The important next steps are to identify the ideal time for administering the PRISM and to examine the associations among PRISM scores and pain outcomes over time.

Trajectories and biopsychosocial predictors of daily acute pain in adolescents receiving treatment for pain: a daily diary study

Research regarding daily acute pain and its correlates has primarily been conducted with adolescents who have had major surgery or musculoskeletal pain, restraining efforts towards adapting interventions for adolescents with other sources of acute pain. We explored the trajectories and correlates of pain intensity. Adolescents with an opioid prescription to treat acute pain (N = 157) completed demographic questions, and the PROMIS pediatric depression and anxiety subscales. A 10-day daily diary assessed pain intensity, pain interference, sleep quality, and opioid use. Three trajectories of pain intensity emerged: (1) slow decreases in pain, (2) rapid decreases in pain, and (3) stable or slight increases in pain. Teens with stable pain demonstrated the greatest anxiety levels. Higher sleep quality predicted lower next day pain intensity and pain interference, when controlling for opioid use. Future research should employ intensive longitudinal methodology to further guide intervention development and prevent the transition to chronic pain.

Associations between Chronic Pain and Attention-Deficit Hyperactivity Disorder (ADHD) in Youth: A Scoping Review

Background: Chronic pain and ADHD are common conditions among youth that negatively impact functioning. This review fills a critical gap by summarizing current research on chronic pain and ADHD comorbidity, and it proposes a conceptual model of shared associations and underlying mechanisms. Objective: The aims of the current study were to: (1) review the extant literature and present estimates of the prevalence of comorbid non-headache chronic pain and ADHD in youth and (2) describe potential shared mechanisms for ADHD and chronic non-headache pain in youth. We also outline future directions to inform future research and interventions directed to youth with comorbid pain and ADHD. Design: A scoping review of the literature was performed in MEDLINE, PsycInfo, and Cochrane Database of Systematic Reviews using a wide range of search terms related to pain, Attention Deficit-Hyperactivity Disorder, childhood, adolescence, and young adulthood. Results: Eleven published studies were included in the review. These studies examined the prevalence of chronic pain among youth with ADHD, the prevalence of ADHD in chronic pain samples, and the association between chronic pain and ADHD among youth. Findings revealed results from studies indicating a higher prevalence of ADHD among youth with chronic pain and a higher prevalence of chronic pain in samples of youth with ADHD. Conclusions: Findings from this scoping review suggest an association between chronic pain and ADHD among youth. Little research was found to examine the etiology of this association. Future studies should examine underlying mechanisms of comorbid chronic pain and ADHD.

Physical Activity as a Predictor of Chronic Pain Following Pediatric Spinal Surgery

OBJECTIVES

(1) Characterize objective physical activity patterns via actigraphy over 4 months postspinal fusion surgery, and (2) examine associations between activity patterns at 2-week and chronic postsurgical pain (CPSP) status at 4 months.

MATERIALS AND METHODS

Data from 109 youth (10 to 18 y) who underwent spinal fusion surgery at a children's hospital in the Northwestern United States were analyzed. Youth completed questionnaires and actigraphic assessment of physical activity presurgery, and 2 weeks and 4 months postsurgery.

RESULTS

Eighteen percent of youth developed CPSP at 4 months. Presurgery physical activity was similar for youth with and without CPSP. At 2 weeks postsurgery, daily activity levels were lower for youth who developed CPSP as compared with those who did not, including lower mean activity (168 vs. 212 counts/min, P=0.01), fewer activity bouts (n=1.7 vs. 2.6, P=0.02), and shorter bout duration (27 vs. 40 min, P=0.02). Differences in activity were maintained at 4 months such that youth with CPSP had lower mean activity (284 vs. 334 counts/min, P=0.03), as well as greater proportion time spent sedentary and lower proportion time in light activity than youth without CPSP. In adjusted models examining 2-week actigraphy as a predictor of 4-month pain status, mean activity (odds ratio=0.99, P=0.04) and number of activity bouts (odds ratio=0.79, P=0.02) were associated with subsequent CPSP status over and above 2-week pain intensity.

DISCUSSION

Lower activity engagement during the initial weeks following spinal fusion surgery was associated with development of CPSP, suggesting early physical activity limitations as a risk factor for CPSP in youth. Understanding recovery patterns is critical for identifying those at risk for chronic pain and implementing early interventions.

Feasibility and reliability of a quantitative sensory testing protocol in youth with acute musculoskeletal pain postsurgery or postinjury

ABSTRACT

Quantitative sensory testing (QST) is increasingly used in pediatric chronic pain; however, assessment in youth with acute musculoskeletal (MSK) pain is limited. This study evaluated the feasibility, reliability, and sources of variability of a brief QST protocol in 2 clinical samples of youth with acute MSK pain. Participants were 277 youth (M age = 14.5 years, SD = 2.0, range = 11-18 years, 59% female, 81% non-Hispanic) across 3 geographic study sites who completed a QST protocol assessing pressure and thermal pain sensitivity, temporal summation of pain, and conditioned pain modulation 8 weeks after MSK surgery (n = 100) or within 4 weeks after an acute MSK injury (n = 177). High feasibility was demonstrated by protocol completion rates ranging from 97.5% to 100% for each task, with 95.3% of youth completing all tasks. Reliability was high, with reliability coefficients of >0.97 for 7 out of 8 QST parameters and minimal influence of examiner or participating site effects. Younger youth had lower pressure and heat pain thresholds (11-12 vs 13-18 years, d = -0.80 to -0.56) and cold pain tolerance (d = -0.33). Hispanic youth had higher pressure and heat pain thresholds (d = 0.37-0.45) and pain ratings for cold pain tolerance (d = 0.54) compared with non-Hispanic youth. No significant differences were observed in QST values by sex or personal contextual factors at the time of assessment (momentary pain, menstrual period, use of pain medications). Overall findings demonstrate feasibility of a brief QST protocol with youth with diverse acute MSK pain and data provide initial support for the reliability of this QST protocol for multisite research studies.

Psychological treatments for the management of pain after musculoskeletal injury: a systematic review and meta-analysis

ABSTRACT

Musculoskeletal injury is a leading cause of pain and disability worldwide; 35% to 75% of people experience persistent pain for months and years after injury. Psychological treatments can reduce pain, functional impairment, and psychological distress but are not widely used after injury. This systematic review and meta-analysis (PROSPERO ID: CRD42021236807) aimed to synthesize the literature testing psychological treatments for pain after musculoskeletal injury. We searched EMBASE, MEDLINE, PubMed, PsycINFO, and CENTRAL from inception to May 2022. We extracted participant, treatment, and injury characteristics and primary (eg, pain intensity, functional impairment, depression, anxiety, and PTSD symptoms) and secondary (treatment feasibility and acceptability) outcomes. Twenty-four randomized controlled trials (N = 1966) were included. Immediately posttreatment, people who received psychological treatments (versus any control) reported lower pain intensity (standardized mean differences [SMD] = -0.25, 95% confidence interval [-0.49, -0.02]), functional impairment (SMD = -0.32 [-0.55, -0.09]), and symptoms of depression (SMD = -0.46 [-0.64, -0.29]), anxiety (SMD = -0.34 [-0.65, -0.04]), and PTSD (SMD = -0.43 [-0.70, -0.15]); at 6-month follow-up, only depression symptoms were significantly lower. Included trials varied widely in treatment and injury characteristics. The certainty of evidence was low or very low for most effects and heterogeneity moderate to substantial. Most studies had risk of bias domains judged to be high or unclear. Owing to very low certainty of results, we are unsure whether psychological therapies reduce pain and functional impairment after musculoskeletal injury; they may result in improved depression immediately posttreatment and at follow-up. More research is needed to identify treatments that result in enduring effects.

Perceived Injustice Is Associated With Pain-related Function and Mood in Youth With Acute Musculoskeletal Pain

OBJECTIVES

Perceived injustice (PI), which is one's appraisal of justice or fairness regarding the pain experience, is an emerging area of interest in pediatric pain research. No previous studies have investigated PI in youth with acute pain. To fill this gap, this study examined (1) associations among PI, pain-related function, and psychological function in treatment-seeking youth with acute musculoskeletal (MSK) pain, and (2) the impact of parent-child PI discordance on children's pain and psychosocial function.

MATERIALS AND METHODS

Participants were youth (aged 11 to 17, 55% male) with acute pain (onset <1 mo) recruited from emergency departments or outpatient clinics and participating parents (102 parent-child dyads). Dyads completed study questionnaires within 1 month of the child's pain onset.

RESULTS

Youth-reported PI was significantly correlated with poorer physical and psychosocial quality of life, higher pain catastrophizing, higher fear of pain, increased pain-related disability, and greater depression and anxiety. Furthermore, PI was significantly associated with the physical quality of life, psychosocial quality of life, and pain-related disability. Moreover, discordance in youth and parent ratings of PI was associated with children's psychological and pain-related function. Specifically, compared with Concordant dyads, youth in the Discordant dyads (youth high PI/parent low PI) reported significantly poorer physical quality of life, psychosocial quality of life, higher pain-related disability, depression, anxiety, and pain catastrophizing.

DISCUSSION

These findings reveal that PI in youth with acute MSK pain is associated with quality of life and pain-related disability. Furthermore, results highlight the importance of discordance between youth and parent reports of PI on pain-related functioning.

Long-term Pain Symptomatology in PICU Survivors Aged 8-18 Years

BACKGROUND AND OBJECTIVES

Children discharged from the PICU often experience long-term physical, psychological, social and cognitive challenges, described as postintensive care syndrome. This study fills a critical gap by describing the long-term pain symptoms many children experience using child self-report.

METHODS

Participants in this cross-sectional study were children aged 8 to 18 years (and 1 parent, n = 64 dyads) who were 8 to 24 months post-PICU discharge. Participants completed measures assessing pain, psychosocial function, and treatment utilization. Health information relevant to the PICU admission was obtained from the electronic medical record.

RESULTS

Children were an average age of 14.3 years and 50% female. Average pain intensity in the past month was 3.65 (0-10 numeric rating scale), with 36% of children reporting pain ≥2 to 3 days a week. Youth with higher intensity (≥4) and more frequent pain (≥2-3 days a week) had greater pain catastrophizing, pain-related fear, anxiety, and sleep disturbance than those with less frequent and intense pain. Higher pain frequency was also associated with greater pain-related disability and depressive symptoms. Pain was not associated with any PICU-related variables abstracted from the electronic medical record. Parents reported children frequently accessed pain treatment services postdischarge; however, 37.5% reported the coronavirus disease 2019 pandemic impacted access to recommended services.

CONCLUSIONS

A significant portion of children experience pain post-PICU discharge. For many of these children, pain is frequent and is associated with impairments in psychosocial function. Future prospective research studies can be used to identify risk factors of poor pain outcomes so children can receive targeted interventions.