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Aim: To assess health-related quality of life (HR-QoL) and academic functioning in adolescents and young adults 6 years after paediatric referral for chronic pain., Methods: In 99 children and adolescents with chronic pain (aged 8-17) referred to a paediatric outpatient clinic, pain and psychiatric disorders were assessed between 2000 and 2002. Participants were reassessed after minimal 5 years (aged 13-24). HR-QoL [Medical Outcomes Study 36-item Short-Form (SF-36)] was compared with Dutch population norms. Academic functioning (structured questionnaire) was compared with baseline., Results: Participant's ratings in most HR-QoL dimensions did not differ from population norms. Outcome was significantly decreased in Bodily Pain (p = 0.001 males, p < 0.000 females) and female General Health (p = 0.001). Poor general health perceptions (p = 0.002), poor global general health (p = 0.003) and a high somatic symptom level (p = 0.004) at baseline predicted poor HR-QoL outcome. School/work attendance was significantly better than at baseline (p = 0.002)., Conclusion: Six years after paediatric referral for chronic pain, HR-QoL was mostly comparable to that of peers, and academic functioning improved. Self-evaluated global health at referral may be an important predictor of HR-QoL outcome of children with chronic pain, rather than psychiatric comorbidity., (© 2012 The Author(s)/Acta Paediatrica © 2012 Foundation Acta Paediatrica.)

Objective: Psychiatric disorders are common in children with chronic pain, but their course and impact when children grow up are unknown. This study examines the 6-year clinical outcome of children referred for chronic pain with and without comorbid psychiatric disorders., Method: In 91 children and adolescents (aged 8 to 17 years) referred to a university outpatient clinic for chronic pain, child psychiatric disorders were assessed using the Diagnostic Interview Schedule for Children-parent version (DISC-P) between 2000 and 2002. Participants (aged 13 to 24 years) were reassessed on average 6-years later. Outcome measures were chronic pain and psychiatric disorders assessed with the Diagnostic Interview Schedule for Children-children version (DISC-C) or the Composite International Diagnostic Interview (CIDI) and Diagnostic Interview Schedule IV (DIS)., Results: After 6 years, 75% of the participants still experienced chronic pain and 15% were in complete remission of both chronic pain and psychiatric disorder. The prevalence of psychiatric disorders (both persistent and new onset disorders) at follow-up was 32%. Baseline psychiatric disorder was a predictor of psychiatric disorder at follow-up (OR = 2.6, 95% CI = 1.1-6.5, P = .04; adjusted OR = 2.8, 95% CI = 1.1-7.1, P = .03) but did not predict persistence of chronic pain., Conclusions: Children referred for chronic pain frequently continue to suffer from chronic pain and psychiatric disorders in adolescence and young adulthood. In this population, comorbid psychiatric disorder at study entry was a predictor of psychiatric disorder, but not of persistent chronic pain, in adolescence and young adulthood., (© Copyright 2012 Physicians Postgraduate Press, Inc.)

The prevalence of psychiatric disorders among children with unexplained chronic pain (UCP) is high in unselected populations and pain clinics, yet the clinical relevance of these disorders in children referred for unexplained pain is not known. This study assessed the prevalence of clinically relevant psychiatric disorders and their predictors in children referred to a children's hospital for UCP. Psychiatry morbidity was assessed in 134 children, aged 8-17 years, using the Diagnostic Interview Schedule for Children-parent version (DISC-P) and the Semi-structured Clinical Interview for Children and Adolescents (SCICA). Clinical relevance was determined using a maladjustment criterion of 61 or lower on the Children's Global Assessment Scale (CGAS). Pain parameters were measured with standardized questionnaires. Results were analysed by logistic regression. According to the DISC-P, 21% of the children had clinically relevant psychiatric disorders, predominantly anxiety disorders (18%). According to the SCICA, 28% of the children had clinically relevant psychiatric disorders, consisting of anxiety, affective, and disruptive disorders (12, 19, and 9%, respectively). Headache (compared to musculoskeletal pain) was an independent clinical predictor of psychiatric morbidity (OR = 3.10; 95% CI 1.07-8.92, p = 0.04/adjusted OR 2.99; 95% CI 1.02-8.74, p = 0.04). In conclusion, clinically relevant psychiatric disorders are common among children and adolescents referred for UCP. Adding a child psychiatrist assessment, treatable affective and disruptive disorders become identifiable. Children with an additional risk are those presenting with headache.

In contrast to adult rheumatoid arthritis (RA) little is known about the prevalence, nature and cause of lung function abnormalities in children with juvenile chronic arthritis (JCA). The aim of this study was to determine whether children with polyarticular and systemic onset JCA have lung function abnormalities and if so, whether they are related to pulmonary disease, thoracic and/or muscular involvement. We determined lung function and disability in 31 children with polyarticular and systemic JCA. Respiratory muscle function, thorax expansion and spine mobility were determined in the same patients, as well as in 32 matched healthy children. Peak expiratory flow (PEF) and forced vital capacity (FVC) were significantly reduced in JCA patients, when compared to reference values. Thorax expansion and spine mobility were normal, compared to paired controls. Maximum inspiratory (PI,max) and expiratory (PE,max) pressures were significantly reduced in patients compared to paired control subjects. A positive correlation was found between PE,max and FVC and PEF, an inverse correlation between expiratory pressure and disability. In conclusion, children with polyarticular and systemic juvenile chronic arthritis show a pronounced impairment in respiratory muscle strength, severe enough to cause mild lung function abnormalities and an increase in disability-scores.