Sleep complaints in survivors of pediatric brain tumors

How Cancer Harms the Developing Brain: Long-Term Outcomes in Pediatric Cancer Survivors

Survival rates for pediatric cancer are improving, resulting in a rising need to understand and address long-term sequelae. In this narrative review, we summarize the effects of cancer and its treatment on the developing brain, with a focus on neurocognitive function in leukemia and pediatric brain tumor survivors. We then discuss possible mechanisms of brain injury and management considerations.

Individual patterns of problems with participation, activity, body function and environment in everyday life for children who completed brain tumor treatment

PURPOSE

The study purpose was to, with the help of ICF and the CPS model, describe and explain patterns of co-occurring problems with participation in everyday life activities, body functioning and environment for children who completed brain tumor treatment.

MATERIALS AND METHODS

Hospital, habilitation and school records for nine children (5-11 yrs.) diagnosed with brain tumor, were retrospectively reviewed for everyday problems after treatment completion. These problems were linked to ICF codes. Median code distribution within ICF constructs participation, body function, body structure, activity, and environment were calculated to generate typical (close to median) and atypical (distant from median) patterns of problems on individual and group levels. Two children were in-depth analyzed with collaborative problem-solving (CPS) model to identify participation problems and plausible explanations.

RESULTS

In total, 4543 ICF linked codes revealed similarities and differences between individuals. The selected child-cases displayed educational challenges and peer-relational problems. The ICF codes related to activity, body function and environment revealed plausible explanations for the children's documented problems with participation in everyday life.

CONCLUSIONS

The combination of ICF and CPS can provide a comprehensive view of the child's problems and guide development of participation in everyday life-focused interventions for children treated for brain tumors.Implications for rehabilitationCare should be guided by interventions and support directed at individual children and their everyday life.The International Classification of Functioning, Disability and Health (ICF) framework can support identification of the individual child's patterns of problems and how these affects the child's everyday life.It is recommended to start by identifying participation problems when using ICF to identify and describe problems in children's natural settings.The collaborative problem-solving model can guide healthcare, habilitation and school services when identifying and acting on typical and atypical problem patterns experienced by these children.

Sleep-related challenges and family functioning in children and adolescents previously treated for craniopharyngioma

PURPOSE

We investigated sleep-related challenges and their association with family functioning in children and adolescents previously treated for craniopharyngioma.

DESIGN

Quantitative approach using psychometrically validated measures.

SAMPLE

Thirty-nine children and adolescents who had been treated for craniopharyngioma and their primary caregivers.

METHODS

Caregivers and youth completed measures of family functioning, family routines, daytime sleepiness, and children's sleep patterns.

FINDINGS

Children and adolescents with craniopharyngioma had significantly higher ratings of self-reported excessive daytime sleepiness, bedtime fears/worries, and restless legs symptoms compared to their relatively healthy peers. Lack of family routines and poor family functioning were related to poor sleep-related outcomes and increased excessive daytime sleepiness.

IMPLICATIONS FOR PSYCHOSOCIAL PROVIDERS

Providers should consider assessing sleep difficulties in pediatric brain tumor survivors from a family systems perspective. Intervening on family-related factors may help improve sleep and other health-related outcomes, whereas intervening on sleep may help improve family functioning.

Sleep problems during and after paediatric brain tumours

Brain tumours are among the most common cancer diagnoses in paediatrics. Children with brain tumours are at risk of developing sleep problems because of direct and indirect effects of the tumour and its treatment, in addition to psychosocial and environmental factors. Sleep has an important role in physical and psychological wellbeing, and sleep problems are associated with many adverse outcomes. In this Review, we describe the state of the evidence regarding sleep in people with paediatric brain tumours, prevalence and types of sleep problems, risk factors, and effectiveness of interventions. Evidence shows that sleep problems, particularly excessive daytime sleepiness, are common in people with paediatric brain tumours, with high BMI emerging as a consistent predictor of sleep disruption. Further intervention studies are needed, and clinical evaluation of sleep is warranted for people with paediatric brain tumours.

An exploratory study of sleep habits in school-aged survivors of retinoblastoma

OBJECTIVE/BACKGROUND

Retinoblastoma is an ocular cancer diagnosed in early childhood. Previous research has indicated the impact of cancer treatment on sleep, but little is known about how sleep is impacted among survivors of retinoblastoma. The current study aimed to describe sleep habits of school-age survivors of retinoblastoma, to examine associations between sleep and quality of life, and to examine concordance between parent and child reports of sleep habits.

PATIENTS/METHODS

Sixty-nine survivors of retinoblastoma (Mage = 10.89, SD = 1.07, 50.7% female; 56.5% unilateral disease) and their caregivers participated, providing information on both self- and parent-reported sleep habits, quality of life, and demographic data.

RESULTS

Greater sleep concerns than national norms were reported by parents (bedtime resistance (t(58) = 2.69, p = .009), greater sleep onset delay (t(66) = 2.46, p = .017), shorter sleep duration (t(57) = 2.12, p = .038), increased daytime sleepiness (t(53) = 6.45, p= <.001)) and children (sleep location (t(61) = 2.39, p = .02), restless legs syndrome (t(62) = -2.21, p = .03), parasomnias (t(64) = 19.19, p=<.001)) . Both children and parents of children who received enucleation endorsed greater sleep concerns across several domains (e.g., electronic use before bed, sleep-disordered breathing). Child- and parent-reported sleep concerns were generally associated with decreased quality of life. Finally, child- and parent-report of sleep habits appeared generally consistent.

CONCLUSIONS

Survivors of retinoblastoma experience sleep difficulties. As such, assessment and targeted intervention is important to mitigate any effects on quality of life. Future research should examine sleep habits of survivors of retinoblastoma across cultures and developmental periods.

Insomnia Symptoms and Daytime Fatigue Co-Occurrence in Adolescent and Young Adult Childhood Cancer Patients in Follow-Up after Treatment: Prevalence and Associated Risk Factors

Insomnia symptoms and daytime fatigue commonly occur in pediatric oncology, which significantly impact physical and psychosocial health. This study evaluated the prevalence of insomnia only, daytime fatigue only, the co-occurrence of insomnia−daytime fatigue symptoms, and associated risk factors. Childhood cancer patients (n = 565, 12−26 years old, ≥6 months after treatment) participated in a national, cross-sectional questionnaire study, measuring insomnia symptoms (ISI; Insomnia Severity Index) and daytime fatigue (single item). Prevalence rates of insomnia and/or daytime fatigue subgroups and ISI severity ranges were calculated. Multinomial regression models were applied to assess risk factors. Most patients reported no insomnia symptoms or daytime fatigue (61.8%). In the 38.2% of patients who had symptoms, 48.1% reported insomnia and daytime fatigue, 34.7% insomnia only, and 17.1% daytime fatigue only. Insomnia scores were higher in patients with insomnia−daytime fatigue compared to insomnia only (p < 0.001). Risk factors that emerged were: female sex and co-morbidities (all), shorter time after treatment and bedtime gaming (insomnia only), young adulthood (insomnia−fatigue/fatigue only), needing someone else to fall asleep and inconsistent wake times (both insomnia groups), lower educational level and consistent bedtimes (insomnia−fatigue). Insomnia symptoms and daytime fatigue are common and often co-occur. While current fatigue guidelines do not include insomnia symptoms, healthcare providers should inquire about insomnia as this potentially provides additional options for treatment and prevention.

Sleep Disturbance and Its Association With Sluggish Cognitive Tempo and Attention in Pediatric Brain Tumor Survivors

Background

Pediatric brain tumor (PBT) survivors are at risk for developing sleep disturbances. While in other pediatric populations sleep disturbance has been associated with worse cognitive functioning, it is unclear to what extent this relationship generalizes to PBT survivors. The aim of the current study was to assess the relationship between sleep disturbance and aspects of cognition, including sluggish cognitive tempo (SCT) as well as attention and working memory.

Materials and Methods

Eighty-three PBT survivors 6–18 years of age who were at least 3 months post-treatment were included in the present cross-sectional study. Level of sleep disturbance was measured as a composite score reflecting various sleep problems as rated by caregivers. Cognitive measures included caregiver-ratings of sluggish cognitive tempo and attention problems, as well as performance-based cognitive measures assessing attention and executive functioning. Hierarchical regression analysis was used to assess associations between sleep and cognition.

Results

Of all caregivers, 32.5% reported one or more sleep disturbances as “very/often true” and over 68% of caregivers rated at least one sleep-related item as “somewhat true.” Of all cognitive variables, scores were most frequently impaired for SCT (30%). A higher level of sleep disturbance was associated with worse SCT and parent-rated attention problems. Associations between sleep and performance-based cognitive measures assessing attention and working memory were not statistically significant.

Conclusion

Findings of the current study highlight the importance of further investigation into the relationship between sleep and cognition in PBT survivors, which may assist efforts to maximize cognitive outcome and health-related quality of life in PBT survivors. The current study additionally suggests further investigation of SCT in this population is warranted, as it may be more sensitive to detecting possible associations with sleep disturbance relative to discrete measures that assess cognitive performance under ideal circumstances.

Prevalence of Sleep Disorders, Risk Factors and Sleep Treatment Needs of Adolescents and Young Adult Childhood Cancer Patients in Follow-Up after Treatment

Simple Summary

Sleep disorders negatively impact adolescent and young adult childhood cancer patients’ physical and psychosocial health. Early recognition might improve timely treatment. This national cohort study describes subjective sleep disorders (using a validated self-report questionnaire according to international diagnostic criteria) in childhood cancer patients after treatment, including all types of diagnoses. Sleep disorder prevalence rates ranged from 1.8–9.6%. Insomnia and circadian rhythm sleep disorders were most commonly reported and more prevalent than in the general population. Female sex, young adulthood (18–26 years old) and co-morbid health conditions were risk factors for having a sleep disorder, but cancer-related factors were not. The most commonly used sleep medication was melatonin, which exceeded use described in the general population. Patients with a sleep disorder expressed an unmet need for sleep treatment. Screening for sleep disorders after cancer might improve access to treatment and support childhood cancer patients to maintain optimal health and quality of life.

Abstract

Background: Sleep disorders negatively impact adolescent and young adult childhood cancer patients’ physical and psychosocial health. Early recognition improves timely treatment. We therefore studied the prevalence of subjective sleep disorders, risk factors and sleep treatment needs after completion of childhood cancer treatment. Methods: Childhood cancer patients (12–26 years old), ≥6 months after treatment, were invited to fill out the Holland Sleep Disorders Questionnaire, which distinguishes six sleep disorders in substantial agreement with the International Classification of Sleep Disorders, second edition (ICSD-2). They additionally indicated sleep treatment needs. Prevalence rates and needs were displayed in percentages. Logistic regression models were used for risk factors. Results: 576 patients participated (response rate 55.8%)—49.5% females, mean age 17.0 years, 44.4% hemato-oncology, 31.9% solid tumors, 23.6% neuro-oncology. Prevalence rates were: insomnia (9.6%), circadian rhythm sleep disorder (CRSD; 8.1%), restless legs syndrome (7.6%), parasomnia (3.5%), hypersomnia (3.5%) and sleep-related breathing disorders (1.8%). Female sex, comorbid health conditions and young adulthood seem to be risk factors for sleep disorders, but cancer-related factors were not. Differing per sleep disorder, 42–72% wanted help, but only 0–5.6% received sleep treatment. Conclusions: Insomnia and CRSD were most prevalent. An unmet need for sleep treatment was reported by childhood cancer patients during follow-up. Screening for sleep disorders after cancer might improve access to treatment and patient wellbeing.

Prevalence of Sleep Disturbances in Pediatric Cancer Patients and Their Diagnosis and Management

Sleep disturbances represent an understudied yet common source of distress among pediatric cancer patients and survivors, with deleterious effects on quality of life. Sleep issues stem from multiple risk factors, yet individual contributors are difficult to isolate, consequently impeding the identification of targets for intervention. In many pediatric cancer patients, disrupted sleep and its negative impact on quality of life continue into adulthood and may affect various functional domains. This literature review highlights the types and prevalence of sleep disturbances in pediatric cancer patients during active treatment and through survivorship. Potential etiological and risk factors for disturbed sleep are summarized, including the effects of cancer and its treatment, psychosocial and family factors, as well as individual-patient aspects, such as genetics, mood and coping skills. While existing assessment and management strategies are reviewed, the literature is incomplete, and significant gaps emerge in our understanding of sleep disturbances in pediatric cancer patients and survivors. The review concludes with recommendations of areas where further research is needed. The aims of this review include increasing clinicians' awareness of sleep disturbances as a significant source of poor quality of life in pediatric cancer patients and survivors and directing researchers to gaps in our understanding of sleep disturbances in pediatric cancer patients and survivors.

Brain tumours result in sleep disorders in children and adolescents

BACKGROUND AND OBJECTIVES

Sleep disturbances are frequently reported in children with brain tumours. The objective of our cross-sectional study was to systematically examine sleep in these children. We hypothesised that children with tumours involving the sleep-wake-regulatory areas have an altered sleep-wake-regulation.

METHODS

Sixty-one patients aged 0-18 years and with a diagnosis of a primary brain or cervical medullary tumour were included. They were categorised based upon tumour location into two groups - those affecting the sleep-wake regulatory regions, i.e. brain stem, basal forebrain, hypothalamus, thalamus, and posterior fossa compressing the brain stem and those that did not. Sleep history, questionnaire surveys, polysomnography, and multiple sleep latency test were used, as indicated clinically. Surveys included Pediatric Daytime Sleepiness Scale, Children's Sleep Habits Questionnaire, Strengths and Difficulties Questionnaire, and Pediatric Quality of Life Inventory, Multidimensional Fatigue Scale and Generic Core Scale.

RESULTS

Patients with tumours involving the sleep-wake regulatory areas were sleepier/more fatigued (p = 0.03). Sleep apnoea was observed in 86% of all the patients and comorbid narcolepsy in 8%, without group differences (p ≥ 0.12). Patients with tumours involving the sleep-wake-regulatory areas had more emotional problems (p = 0.04), were more affected by mental health problems (p < 0.001), and had poorer quality of life (p ≤ 0.03).

CONCLUSIONS

Many children with brain tumours suffer from disturbed sleep, poor mental health, and low quality of life. We recommend that systematic sleep evaluation is included in their routine care along with psychological and social support.

Sleep Quality Among Teenagers and Young Adults With Cancer

BACKGROUND

Teenagers and young adults (TYAs) with cancer are known to suffer poor sleep quality and sleep disturbances; understanding the level of burden is essential to improving patient outcomes via supportive care interventions.

OBJECTIVES

To compare sleep quality and the prevalence of sleep disturbances among TYA cancer patients, TYA survivors, and general population TYAs with no history of cancer.

METHODS

Teenager and young adult patients receiving active cancer treatment (n = 70), TYA cancer survivors (n = 151), and general population TYAs (n = 324) aged between 13 and 24 years completed the Pittsburgh Sleep Quality Index. Analyses of covariance were used to investigate potential group differences. Age at survey diagnosis, gender, ethnicity, and health status were included as covariates.

RESULTS

84.29% of TYA patients, 62.91% of TYA cancer survivors, and 65.12% of general population TYAs reported Pittsburgh Sleep Quality Index scores greater than 5, suggesting clinically significant sleep disorders. Teenager and young adult patients reported significantly poorer global sleep quality compared with TYA survivors (mean difference, 0.99; 95% confidence interval, 0.03-1.96; P = .044) and general population TYAs (mean difference, 1.34; 95% confidence interval, 0.26-2.41; P = .009). Teenager and young adult patients and survivors reported significantly poorer sleep latency (P = .003 for TYA patients, P = .035 for TYA survivors off treatment) and habitual sleep efficiency (P < .001 for TYA patients, P = .014 for TYA survivors) than general population controls.

CONCLUSIONS

The significant differences observed suggest young people with cancer, particularly those on treatment, may benefit from specialized sleep interventions.

IMPLICATIONS FOR PRACTICE

Efforts to ensure health professionals have the knowledge and skills to provide advice about sleep to young people with cancer are needed.

Sleep and neurobehavioral functioning in survivors of pediatric cancer

OBJECTIVES

Sleep problems are a common late effect in survivors of pediatric cancer. Growing literature suggests deficits in sleep functioning may be related to more impairing neurobehavioral outcomes. The purpose of the present study was to evaluate the prevalence of parent reported sleep concerns in survivors of pediatric cancer, as well as evaluate the relationship between sleep and neurobehavioral functioning utilizing both parent and teacher input.

METHODS

The study included parent-teacher dyads of 75 survivors of pediatric cancer between the ages of six and 17 who completed a clinical neuropsychological evaluation with embedded measures of neurobehavioral functioning and sleep, including excessive daytime sleepiness and snoring. Bivariate correlations and multiple linear regressions were conducted to evaluate the relationship between sleep and neurobehavioral functioning.

RESULTS

No significant difference in parent reported sleep concerns was found with regard to demographic, diagnostic, or treatment variables. Daytime sleepiness was significantly elevated for 28% of the sample; snoring was not identified as a significant concern. Daytime sleepiness was significantly associated with worse neurobehavioral outcomes as reported by parents and teachers, including inattention, hyperactivity/impulsivity, peer difficulties, anxiety, depression, somatic complaints, and aggressive behaviors. Daytime sleepiness was not significantly related to report of learning problems.

CONCLUSIONS

Results further support that daytime sleepiness, as reported by parents, impacts approximately one third of survivors of pediatric cancer and is associated with worse neurobehavioral outcomes across home and school environments. As a result, it is vital that sleep functioning is a target of assessment in annual survivorship care. Future longitudinal studies are needed to further delineate the directionality of the sleep-neurobehavioral relationship in survivors.

Seeing the Whole Elephant: a scoping review of behavioral treatments for pediatric insomnia

Pediatric insomnia is common, impacting up to a third of typically-developing, healthy children, and over 80% of children with neurodevelopmental disorders or chronic medical conditions. Previous reviews of behavioral interventions for pediatric insomnia have had a limited focus on a single age group, a specific population, and/or only randomized controlled trials. Furthermore, few reviews have considered non-sleep outcomes of both children and their parents. This scoping review provides a broader context, including studies regardless of research design or population, along with sleep and non-sleep study outcomes. Clear gaps in the literature were identified, highlighting the need for additional research in different populations, including school-age children and adolescents, racial/ethnic groups around the world, as well as youth with medical or psychiatric disorders. In addition, more research is needed on different features of treatment, including the delivery mode, involvement of all family members, non-sleep outcomes, and long-term follow-up.

Clinical validity of the PROMIS pediatric sleep short forms in children receiving treatment for cancer

BACKGROUND

Rates of sleep disturbances vary widely across pediatric cancer studies, partly due to differences in measurement tools. Patient-reported outcomes measurement information system (PROMIS) offers a rigorously developed, well-validated pair of pediatric sleep health instruments needed to advance sleep research and clinical practice in pediatric cancer. The current study evaluated the clinical validity of PROMIS pediatric sleep scales (sleep disturbances [SD] and sleep-related impairment [SRI]) among children in active cancer treatment.

PROCEDURE

Caregiver-patient dyads were enrolled during cancer treatment in 2-12 months after diagnosis: 45 children (ages 8-17 years) and 102 caregivers of children (ages 5-17 years) completed PROMIS SD and SRI 8-item short form self-report or caregiver-proxy scales, and caregivers reported the prior week's cancer treatments and blood counts.

RESULTS

Both scales demonstrated strong internal consistency reliability across reporters. SD and SRI were higher than the PROMIS general population calibration sample for caregivers and patients. Oncology caregivers reported lower SD and SRI than sleep clinic caregivers, but oncology patients were similar to sleep clinic patients. Convergent validity was evidenced through moderate correlations between scales by reporter and both scales being significantly higher in patients taking medications for sleep. There were no significant differences in SD or SRI by diagnostic group, receiving radiation, or having low blood counts.

CONCLUSION

The PROMIS SD and SRI short forms are promising measures for pediatric oncology, demonstrating strong internal consistency reliability and multiple indications of clinical validity. Although groups did not differ based on treatment variables, results suggest the need for universal screening for sleep problems during pediatric cancer treatment.

Clinical Validity of the PROMIS Pediatric Sleep Measures across Populations of Children with Chronic Illnesses and Neurodevelopment Disorders

OBJECTIVE

To examine the clinical validity of the Patient Reported Outcome Measurement Information System (PROMIS) Pediatric Sleep Disturbance (SD) and Sleep-Related Impairment (SRI) short forms.

METHODS

Youth (8-17 years) from clinical populations with known SDs (sleep clinic n = 126, autism n = 276, asthma n = 82, asthma + eczema n = 68) and the general population (n = 902) completed the PROMIS Pediatric SD and SRI 8-item short forms, along with established measures of sleep (Children's Report of Sleep Patterns, Sleep Habits Survey), PROMIS Pediatric Fatigue, and parent-reported clinical indicators (does child have sleep problem, use melatonin, use prescription sleep medication).

RESULTS

Confirmatory factor analyses demonstrated factorial invariance for all clinical groups. Significant differences between the general population and clinical groups were found for SD and SRI (medium to large effect sizes). Convergent validity was demonstrated through separate hierarchical regression models that showed significant associations between parent-reported clinical indicators and SD and SRI, above and beyond clinical group, as well as moderate to strong correlations between the PROMIS sleep measures and both established measures of sleep and fatigue.

CONCLUSIONS

The PROMIS Pediatric SD and SRI short forms provide clinicians and researchers a brief, accurate, and valid way to measure patient-reported sleep outcomes in pediatric populations.

A call to action for expanded sleep research in pediatric oncology: A position paper on behalf of the International Psycho‐Oncology Society Pediatrics Special Interest Group

Sleep and circadian rhythms are closely related to physical and psychosocial well‐being. However, sleep and circadian rhythm disruptions are often overlooked in children with cancer, as they are frequently considered temporary side effects of therapy that resolve when treatment ends. Yet, evidence from adult oncology suggests a bidirectional relationship wherein cancer and its treatment disrupt sleep and circadian rhythms, which are associated with negative health outcomes such as poor immune functioning and lower survival rates. A growing body of research demonstrates that sleep problems are prevalent among children with cancer and can persist into survivorship. However, medical and psychosocial outcomes of poor sleep and circadian rhythmicity have not been explored in this context. It is essential to increase our understanding because sleep and circadian rhythms are vital components of health and quality of life. In children without cancer, sleep and circadian disturbances respond well to intervention, suggesting that they may also be modifiable in children with cancer. We present this paper as a call to (a) incorporate sleep or circadian rhythm assessment into pediatric cancer clinical trials, (b) address gaps in understanding the bidirectional relationship between sleep or circadian rhythms and health throughout the cancer trajectory, and (c) integrate sleep and circadian science into oncologic treatment.

High occurrence of sleep problems in survivors of a childhood brain tumor with neurocognitive complaints: The association with psychosocial and behavioral executive functioning

BACKGROUND

Survivors of childhood brain tumors are prone to sleep and neurocognitive problems. Effective interventions to improve neurocognitive functioning are largely lacking. In general, sleep problems are negatively related to neurocognitive functioning, but this relationship is unclear in survivors of childhood brain tumors. Therefore, the occurrence of sleep problems, potential risk factors, and the relation between sleep and executive functioning were evaluated.

PROCEDURE

Baseline data of a randomized controlled trial on the effectiveness of neurofeedback were used. Childhood brain tumor survivors 8-18 years of age with parent-reported neurocognitive complaints ≥2 years after treatment were eligible. Parents completed the Sleep Disturbance Scale for Children. Executive functioning was assessed by parents and teachers (Behavior Rating Inventory of Executive Functioning). Multiple linear regression analyses were used to examine sociodemographic and medical characteristics and emotional difficulties and hyperactivity/inattention (Strength and Difficulties Questionnaire) as potential risk factors for sleep problems, and to assess the association between sleep and executive functioning.

RESULTS

Forty-eight percent of survivors (n = 82, 7.0 ± 3.6 years post diagnosis, age 13.8 ± 3.2 years) had sleep problems and scored significantly worse than the norm on the subscales Initiating and Maintaining Sleep, Excessive Somnolence, and the total scale (effect sizes 0.58-0.92). Emotional problems and/or hyperactivity/inattention were independent potential risk factors. Sleep problems were associated with worse parent-reported executive functioning.

CONCLUSIONS

Sleep problems occur among half of childhood brain tumor survivors with neurocognitive problems, and are associated with worse executive functioning. Future studies should focus on the development of sleep interventions for this population, to improve sleep as well as executive functioning.

Sensitivity and Specificity of the Modified Epworth Sleepiness Scale in Children With Craniopharyngioma

STUDY OBJECTIVES

Children with craniopharyngioma are at risk for excessive daytime sleepiness (EDS). Multiple Sleep Latency Testing (MSLT) is the gold standard for objective evaluation of EDS; however, it is time and resource intensive. We compared the reliability, sensitivity, and specificity of the modified Epworth Sleepiness Scale (M-ESS) and MSLT in monitoring EDS in children with craniopharyngioma.

METHODS

Seventy patients (ages 6 to 20 years) with craniopharyngioma completed the M-ESS and were evaluated by polysomnography and MSLT. Evaluations were made after surgery, if performed, and before proton therapy.

RESULTS

MSLT revealed that 66 participants (81.8%) had EDS, as defined by a mean sleep latency (MSL) < 10 minutes, with only 28.8% reporting EDS on the M-ESS by using a cutoff score of 10. The M-ESS demonstrated adequate internal consistency and specificity (91.7%) but poor sensitivity (33.3%) with the established cutoff score of 10. A cutoff score of 6 improved the sensitivity to 64.8% but decreased the specificity to 66.7%.

CONCLUSIONS

Patients with craniopharyngioma are at high risk for EDS, as documented objectively on the MSLT, but they frequently do not recognize or accurately report their sleepiness. Future sleep studies should investigate whether specific items or alternative self- and parent-reported measures of sleepiness may have greater clinical utility in monitoring sleepiness in this population.

A pilot randomized controlled trial to improve sleep and fatigue in children with central nervous system tumors hospitalized for high-dose chemotherapy

OBJECTIVES

To determine whether a sleep intervention compared with standard of care (SOC) was successful in preserving nighttime sleep in children with central nervous system cancers hospitalized for high-dose chemotherapy (HDCT) and autologous stem cell rescue, and to explore associations between sleep and fatigue during treatment.

METHODS

An unblinded, randomized, controlled, multicomponent intervention (NCT00666614) including evidence-based cognitive and behavioral strategies to improve sleep was implemented in 33 children (age 4-12 years) and adolescents (age 13-19 years) during hospitalization. Children wore an actigraph to measure sleep and wake, and reported fatigue scores daily. Parents concurrently kept a sleep diary and reported fatigue scores for their children.

RESULTS

The mean age was 9.5 ± 3.9 years, 81.8% were white, and 60.6% were male. Sleep in all children was seriously disturbed throughout the study. Children in the intervention group maintained their longest nighttime sleep across the study, while it declined in children receiving SOC (P = 0.009 for interaction). There were few other differences in sleep between groups. Controlling for age and baseline fatigue, higher nighttime activity score, and lower percent sleep were significantly associated with higher next-day adolescent-reported fatigue (P < 0.05); longest sleep was significantly positively associated with next-day child-reported fatigue (P = 0.018).

CONCLUSION

In this sample of children undergoing HDCT, a multicomponent sleep intervention modestly preserved nighttime sleep duration, although overall sleep was poor in both groups. Sleep is an integral component of health, and may influence outcomes of children receiving HDCT. Further investigation into methods of preserving sleep in children undergoing intensive cancer therapy is warranted.

Trajectories of health behaviors across early childhood cancer survivorship

OBJECTIVE

The majority of childhood cancer survivors develop at least one late effect subsequent to treatment (eg, cardiovascular disease and obesity). Consistent engagement in recommended health behaviors may mitigate some of these conditions. Researchers have identified early survivorship as a teachable moment, yet few studies have examined positive health behaviors during this period.

METHODS

Families of children with cancer (ages 5-17) were initially recruited following a diagnosis or relapse of cancer. Three years post diagnosis, survivors (n = 82, M_age  = 13.3, SD = 3.7) and their mothers (n = 103, M_age  = 41.1, SD = 7.6) completed a questionnaire assessing exercise, dietary, and sleep patterns among survivors. A follow-up assessment was conducted 2 years later. Mixed models tested change in health behavior over time.

RESULTS

At 3- and 5-year post diagnosis, mother and self-report indicated that few survivors engaged in appropriate levels of low-intensity exercise, fruit/vegetable intake, and dairy consumption. However, most survivors engaged in recommended levels of high intensity exercise, fast food restriction, and sleep. Health behaviors remained stable over time, except for mother report of sleep duration, which decreased (b = -0.6, P < 0.001). Brain tumor diagnosis predicted a larger decrease in self-report of sleep duration compared with other diagnoses (P = 0.04). Income predicted fast food intake such that higher income was associated with decreased intake over time, whereas lower income was associated with increased intake (P = 0.04).

CONCLUSIONS

During early survivorship, several health behaviors fell short of expectations for exercise and diet and did not improve upon reaching 5-year post diagnosis. Providers should evaluate survivors' health behaviors, including sleep, early and often, intervening when necessary.

Sleep disorders in children with brain tumors: a pilot study based on a sleep disorder questionnaire

PURPOSE

The aim of this study is to compare the prevalence of sleep disorders (SD) between children treated for brain tumors and healthy children, and to define the type of SD.

METHODS

A case-control study was performed from October 2014 to April 2015. Inclusion criteria were patients between 2 and 16 years with "cases" defined as children affected by central nervous system tumors at least 3 months after the end of treatment (surgery and/or radiotherapy and/or chemotherapy) at the time of evaluation and "controls" as healthy children. Children's sleep quality was assessed with a questionnaire administered to parents (Child's Sleep Habits Questionnaire, CSHQ). A total score greater than 41 is suggestive for the presence of disturbed sleep. The risk of SD was estimated by the odds ratio (OR) and their 95% confidence intervals (95% CI) through logistic regression models.

RESULTS

Twenty-nine cases and 87 controls (in a 1:3 model) were enrolled, for a total of 116 subjects. The prevalence of SD resulted of 82.8% among cases and 64.4% in controls. A statistically significant difference between the two groups (OR 2.65; 95% CI 0.92-7.65) was not reached. Analyzing singular disturbances, parasomnias and night awakenings showed a statistically significant difference between the two groups (OR 4.32; 95% CI 1.08-17.34).

CONCLUSIONS

Our study revealed a trend toward SD in children with brain tumor when compared to healthy population. Hovewer, analyzing specific subtypes of SD some significant differences were obtained. A significant difference was obtained only for specific subtypes of SD. Further investigations could better define the real burden of SD.

Prevalence, risk factors, and response to treatment for hypersomnia of central origin in survivors of childhood brain tumors

Daytime sleepiness is recognized in childhood brain tumor survivors. Our objective was to determine prevalence, risk factors for PSG/MLST proven hypersomnia/narcolepsy, and response to stimulants in childhood brain tumor survivors. Standard PSG/MSLT criteria were used to diagnose hypersomnia/narcolepsy. Medical records of brain tumor survivors having undergone a PSG/MSLT were reviewed for the diagnostic code of hypersomnia/narcolepsy. Survivors with hypersomnia/narcolepsy were matched with 2-3 survivors without reported hypersomnia/narcolepsy by age at tumor diagnosis, gender, and time from tumor diagnosis. Between January 2000 to April 2015, 39 of the 2336 brain tumor patients treated at our institution were diagnosed with hypersomnia/narcolepsy for a prevalence rate of 1670/100,000. Hypersomnia/narcolepsy was diagnosed at a median of 6.1 years (range 0.4-13.2) from tumor diagnosis and 4.7 years (range - 1.5 to 10.4) from cranial radiation. Midline tumor location (OR 4.6, CI 1.7-12.2, p = 0.002) and anti-epilepsy drug (AED) use (OR 11, CI 2.4-54) correlated with hypersomnia/narcolepsy while radiation dose > 30 Gray trended towards significance (OR 1.8, CI 0.9-3.6); posterior fossa tumor location reduced the risk (OR 0.1, CI 0.04-0.5, p = 0.002). AED use also correlated with midline tumor location. Thirty-seven survivors were treated with stimulants and reported improved wakefulness and school performance [response rate CI 0.97 (0.86-0.99) and 0.83 (0.65-0.94)]. Prevalence of hypersomnia/narcolepsy among childhood brain tumor survivors was higher than the general population. Tumor location and radiation dose were possible risk factors, and stimulants were reported to be beneficial.

Sleep in Adolescents and Young Adults in the Year After Cancer Treatment

PURPOSE

Adolescents and young adults (AYA) with cancer are a vulnerable group facing more intense treatments, higher symptom burden, and poorer treatment outcomes relative to younger children. Sleep disruption is common during cancer treatment and sleep problems persist into adulthood for some survivors of AYA cancer. The developmental period of adolescence/emerging adulthood confers greater biological and behavioral risk for insufficient sleep relative to older or younger ages. Thus, understanding AYA sleep disturbances shortly after completing treatment can inform interventions to manage cancer-related symptoms and improve quality of life.

METHODS

Sixty-one AYA (ages 12-25) within 1 year of finishing cancer treatment completed the Pittsburgh Sleep Quality Index (PSQI) and the Minneapolis-Manchester Quality of Life Instrument-Adolescent Form. Treatment variables were extracted from electronic medical records.

RESULTS

Forty-seven percent of participants were classified as "poor sleepers," 41% reported prolonged sleep onset latency (>30 minutes), 31% reported sleep efficiency suggestive of insomnia, and 33% slept <8 hours nightly. Age moderated the relationship between time off treatment and PSQI total score: for younger AYA the relationship was positive and for older AYA the relationship was negative. Better sleep and higher quality of life were strongly related (r = -0.57, p < 0.001).

CONCLUSIONS

For almost half of AYA cancer survivors studied, sleep is disrupted as indicated by long sleep-onset latencies, sleep efficiency suggestive of insomnia, and inadequate total sleep time. Screening for sleep disturbances after AYA complete cancer therapy may reduce the impact of sleep on quality of life and identify those at risk for insomnia.

Predictors of fatigue and poor sleep in adult survivors of childhood Hodgkin's lymphoma: a report from the Childhood Cancer Survivor Study

PURPOSE

Survivors of pediatric Hodgkin's lymphoma (HL) are at risk for a number of debilitating late effects. Excessive fatigue and poor sleep quality are primary complaints of HL survivors. Understanding the emotional and physical factors that influence fatigue and sleep quality may provide opportunities for intervention to improve health-related quality of life for HL survivors.

METHODS

Data from 751 adult survivors of childhood HL who participated in the Childhood Cancer Survivor Study (CCSS) from 2000-2002 were analyzed. Multivariable logistic regression analyses investigated the demographic, psychological, and physical variables that predicted clinically significant levels of poor sleep quality, fatigue, and excessive daytime sleepiness.

RESULTS

Survivors' self-reported level of emotional distress, pain, and physical functioning limitations did not differ from population norms. Clinically elevated levels of emotional distress (OR 8.38, 95% CI 4.28-16.42) and pain (OR 3.73, 95% CI 2.09-6.67) increased the risk for endorsing elevated levels of fatigue. Survivors with elevated levels of emotional distress (OR 6.83, 95% CI 2.71-15.90) and pain (OR 5.27, 95% CI 1.78-15.61) were more likely to report poor sleep quality. Pain (OR 2.11, 95% CI 1.39-3.34) was related to excessive daytime sleepiness.

CONCLUSIONS

Emotional and physical factors are associated with elevated levels of fatigue, excessive daytime sleepiness, and poor sleep quality in survivors of pediatric HL. This is consistent with findings from research conducted with non-cancer survivors.

IMPLICATIONS FOR CANCER SURVIVORS

These results suggest that interventions designed to target sleep and fatigue difficulties in the general population may be well suited for pediatric HL survivors as well.

Sleepiness, Fatigue, Behavioral Functioning, and Quality of Life in Survivors of Childhood Hematopoietic Stem Cell Transplant

OBJECTIVES

To examine subjective fatigue and sleepiness as predictors of functional outcomes in long-term pediatric hematopoietic stem cell transplant (HSCT) survivors.

METHODS

Participants included 76 survivors assessed 5-14 years post-HSCT. Self-report and parent-proxy (i.e., N = 38) measures of fatigue, excessive daytime sleepiness (EDS), emotional and behavioral functioning, executive functioning, and quality of life (QOL) were completed. Health-related correlates were obtained from medical records.

RESULTS

Survivors exhibited significant fatigue for self (M = 69.21 ± 20.14) and parent-proxy (M = 72.15 ± 20.79) report. EDS was endorsed for 20-33% of survivors, depending on the respondent. EDS was not significant for parent-proxy outcomes, but was associated with poorer self-reported QOL and internalizing problems (p < .0016). Fatigue was associated with poorer functioning across all domains (p's < .0016).

CONCLUSIONS

A substantial number of pediatric HSCT survivors exhibit sleepiness and fatigue. Fatigue is associated with statistically and clinically greater functional difficulties, highlighting the importance of examining sleep and fatigue and considering interventions to improve alertness.