Medical and neurocognitive late effects among survivors of childhood central nervous system tumors

Predicting neuropsychological late effects in pediatric brain tumor survivors using the Neurological Predictor Scale and the Pediatric Neuro-Oncology Rating of Treatment Intensity

OBJECTIVE

The Neurological Predictor Scale (NPS) quantifies cumulative exposure to tumor- and treatment-related neurological risks. The Pediatric Neuro-Oncology Rating of Treatment Intensity (PNORTI) measures the intensity of different treatment modalities, but research is needed to establish whether it is associated with late effects. This study evaluated the predictive validity of the NPS and PNORTI for neuropsychological outcomes in pediatric brain tumor survivors.

METHOD

A retrospective chart review was completed of pediatric brain tumor survivors (PBTS) (n = 161, Mage = 13.47, SD = 2.80) who were at least 2 years from the end of tumor-directed treatment. Attention, intellectual functioning, perceptual reasoning, processing speed, verbal reasoning, and working memory were analyzed in relation to the NPS and PNORTI.

RESULTS

NPS scores ranged from 1 to 11 (M = 5.57, SD = 2.27) and PNORTI scores ranged from 1 (n = 101; 62.7%) to 3 (n = 18; 11.2%). When controlling for age, sex, SES factors, and time since treatment, NPS scores significantly predicted intellectual functioning [F(7,149) = 12.86, p < .001, R2 = .38] and processing speed [F(7,84) = 5.28, p < .001, R2 = .31]. PNORTI scores did not significantly predict neuropsychological outcomes.

CONCLUSIONS

The findings suggest that the NPS has value in predicting IF and processing speed above-and-beyond demographic variables. The PNORTI was not associated with neuropsychological outcomes. Future research should consider establishing clinical cutoff scores for the NPS to help determine which survivors are most at risk for neuropsychological late effects and warrant additional assessment.

Measurement Properties of Patient-Reported Outcome Measures for Adolescent and Young Adult Survivors of a Central Nervous System Tumor: A Systematic Review

Purpose: To identify and evaluate patient-reported outcome measures (PROMs) for assessing survivorship-related concepts for adolescent and young adult (AYA) survivors of central nervous system (CNS) tumors. Methods: We searched five electronic databases. Two researchers independently screened all titles for inclusion and used consensus-based standards for the selection of health measurement instruments (COSMIN) guidance to grade the quality of evidence for each measurement property. Results: Four studies met eligibility criteria: single-item pain thermometer; single-item fatigue thermometer; 37-item pediatric functional assessment of cancer therapy-brain tumor survivors, measuring quality of life; and 12-item Perceived Barriers Scale to assess barriers to employment. The Perceived Barrier Scale showed high-quality evidence for internal consistency and moderate quality evidence for construct and structural validity. Evidence for the measurement properties of the other PROMs was low-to-moderate quality. Conclusion: We found one PROM with sufficient evidence for good measurement properties to support its use. This warrants development and evaluation of further PROMs to inform ongoing supportive care for this population. Implications for Cancer Survivors: The Perceived Barriers Scale is sufficiently validated and could be considered to guide support for AYA survivors of CNS tumors to achieve their employment goals.

Caregivers matter: Neurological vulnerability for pediatric brain tumor survivors

Background

Pediatric brain tumor survivors (PBTS) are at risk of worse quality of life (QOL) due to the impact of neurotoxic treatments on the developing nervous system. Parenting factors such as protectiveness have been linked to worse QOL in childhood cancer survivors generally, but have yet to be explored for PBTS. We examined whether parenting behaviors moderated the association between neurotoxic treatment and QOL for PBTS.

Methods

PBTS (n = 40; ages 10-25) and their caregivers (n = 47) completed measures of parenting behaviors including warmth (support/connectedness) and psychological control (protectiveness) and QOL. We divided the sample into moderate/high and low neurotoxicity groups based on chart review using the Pediatric Neuro-Oncology Rating of Treatment Intensity and examined moderator effects.

Results

Survivor-reported primary caregiver warmth moderated the relationship between neurotoxicity and caregiver-reported QOL. Moderate/high neurotoxicity was associated with lower caregiver-reported QOL only when survivor-reported primary caregiver warmth was low, P = .02. Similar results were found for survivor-reported QOL. Caregiver-reported psychological control moderated the association between neurotoxicity and caregiver-reported QOL such that neurotoxicity only affected QOL at high levels of psychological control, P = .01.

Conclusions

Heightened associations between parenting and QOL in the context of neurotoxic treatments underscore the need to better support PBTS. Findings are consistent with research suggesting that family factors may be particularly important for children with other neurological insults. Limitations include cross-sectional design and a small/heterogeneous clinical sample with low ethnic/racial diversity. Prospective studies are needed to refine evidence-based screening and develop psychosocial intervention strategies to optimize QOL for PBTS and their families.

Psychological and Psychiatric Aspects of Brain and Spinal Cord Tumors

Central nervous system (CNS) tumors are mainly diagnosed by physical symptoms such as paralysis, visual field defect, seizure, and loss of consciousness. The psychological and psychiatric background of CNS tumors, whether in preoperative or postoperative period, has long been a neglected topic; however, lately, many authors and researchers have paid more attention to these manifestations. Neurocognition is a subset of parameters, including attention, memory, mood, emotions, language production, personality, executive function, problem-solving, calculation, and spatial cognition, making up the patient's cognitive performance. Also, it is worthy to say that neurocognition is considered a parameter of quality of life (QoL). Currently, we know that neurocognitive disorders are a group of symptoms presenting by the patients. These symptoms may be the first picture of CNS lesions, which result in incorrect treatment, a higher financial burden on the patient and health system, and finally, poorer QoL and performance scale if they are not diagnosed early. Psychological and psychiatric problems such as depression, anxiety, and phobia following the CNS tumors have two aspects. These may present before any treatment resulting from the tumoral mass effect, peritumoral edema, or cerebral tissue disruption due to the space-occupying lesion. On the other hand, we can see these features after a kind of therapy such as surgery, medical therapy, or adjuvant therapy. Sometimes, the CNS tumors lead to psychosocial complications postoperatively. Indeed, considering tumor surgery complications, some patients may find various degrees of deficits that make the patient isolated either socially or professionally. Obviously, the improvement rate and outcome of this specific situation depend on the mechanism of occurrence and its causes. For instance, postoperative symptom relief would be expected when the symptoms are related to the tumoral mass effect. Getting familiar with this constellation of the symptoms, realizing them, and then localizing them to the correct area of the CNS are very crucial. Accordingly, because of their importance in QoL, their influence on patient's survival even more than the extent of resection of the tumor, and somehow their ignorance, we will discuss different neurocognitive manifestations related to CNS tumors in this chapter.

Zebrafish Models of Paediatric Brain Tumours

Paediatric brain cancer is the second most common childhood cancer and is the leading cause of cancer-related deaths in children. Despite significant advancements in the treatment modalities and improvements in the 5-year survival rate, it leaves long-term therapy-associated side effects in paediatric patients. Addressing these impairments demands further understanding of the molecularity and heterogeneity of these brain tumours, which can be demonstrated using different animal models of paediatric brain cancer. Here we review the use of zebrafish as potential in vivo models for paediatric brain tumour modelling, as well as catalogue the currently available zebrafish models used to study paediatric brain cancer pathophysiology, and discuss key findings, the unique attributes that these models add, current challenges and therapeutic significance.

Long-term unmet supportive care needs of teenage and young adult (TYA) childhood brain tumour survivors and their caregivers: a cross-sectional survey

Introduction

The supportive care needs of long-term childhood brain tumour survivors, now teenagers and young adults (TYAs), and their caregivers are largely unknown. We aimed to describe their supportive care needs and explore associations between needs and quality of life (QoL).

Methods

Participants were recruited from long-term follow-up clinics (in three NHS Trusts in England) and online. Participants included childhood brain tumour survivors, ≥ 5 years from diagnosis, currently aged 13–30, and their primary caregivers. Survivors completed the Supportive Care Needs Survey (SCNS) Short Form and caregivers the SCNS-Partners & Caregivers, alongside validated QoL questionnaires (Peds-FACT-Br and CQOLC).

Results

In total, 112 individuals (69 survivors/43 caregivers) participated. Survivors reported on average 9.4 (± 8.5) unmet needs. Needs were greatest in the psychological domain, with anxiety (60.3%), uncertainty about the future (50.7%) and feeling down and depressed (48.5%) most commonly reported. Caregivers reported on average 12.4 (± 12.3) unmet needs. Again, the greatest number of unmet needs was observed in the psychological domain. Many caregivers also reported information needs around financial support/government benefits (42.9%) and possible survivor fertility problems (42.9%). Multivariable linear regression analysis showed that female survivors, unemployed survivors, survivors further away from diagnosis and single caregivers were more likely to report unmet needs. More unmet needs were significantly associated with poorer QoL in survivors and caregivers.

Conclusion

This research provides leads to improving supportive care and long-term follow-up services. Psychological support represents the biggest gap in care. Understanding unmet needs and recognising what services are required are critical to improving quality of long-term survival.

Supplementary Information

The online version contains supplementary material available at 10.1007/s00520-021-06618-7.

Pediatric Craniospinal Irradiation - The implementation and Use of Normal Tissue Complication Probability in Comparing Photon versus Proton Planning

Purpose:

The preferred radiotherapy treatment for medulloblastoma is craniospinal irradiation (CSI). With the aim of developing the potential to reduce normal tissue dose and associated post-treatment complications with photon and proton radiotherapy techniques for CSI. This report aims to carefully compare and rank treatment planning and dosimetric outcomes for pediatric medulloblastoma patients using normal tissue complication probability (NTCP) formalism between photon (three-dimensional conformal radiotherapy, intensity-modulated radiotherapy [IMRT], volumetric-modulated arc therapy [VMAT], and HT) and proton CSI.

Methods and Materials:

The treatment data of eight pediatric patients who typically received CSI treatment were used in this study. The patients were 7 years of age on average, with ages ranging from 3 to 11 years. A prescription dose of 3600 cGy was delivered in 20 fractions by the established planning methods. The Niemierko's and Lyman–Kutcher–Burman models were followed to carefully estimate NTCP and compare different treatment plans.

Results:

The NTCP of VMAT plans in upper and middle thoracic volumes was relatively high compared to helical tomotherapy (HT) and pencil beam scanning (PBS) (all P < 0.05). PBS rather than IMRT and VMAT in the middle thoracic region (P < 0.06) could significantly reduce the NTCP of the heart. PBS significantly reduced NTCP of the lungs and liver (all P < 0.05).

Conclusion:

The NTCP and tumor control probability (TCP) model-based plan ranking along with dosimetric indices will help the clinical practitioner or medical physicists to choose the best treatment plan for each patient based on their anatomical or clinical challenges.

Psychometric Validation of the PERMA-Profiler as a Well-Being Measure for Young Adult Survivors of Pediatric Central Nervous System Tumor

This study aims to validate a measure of well-being, the PERMA-Profiler, among a sample of young adult survivors of pediatric central nervous system (CNS) tumor. Measurement structure of the PERMA-Profiler was evaluated using exploratory factor analysis and confirmatory factor analysis using pretest–posttest data. Reliability and concurrent validity of the PERMA-Profiler were examined. This study included 127 young adult survivors of pediatric CNS tumor between the ages of 18 and 30 ( M = 23.83, SD = 3.00) years. The results of factor analyses yielded a single-factor solution for well-being. Significant relationships between well-being and happiness, life satisfaction, perceived stress, and physical health were observed, providing support for the concurrent validity of the PERMA-Profiler. The PERMA-Profiler displayed good internal consistency and test–retest reliability. The PERMA-Profiler can help rehabilitation researchers and counselors better evaluate well-being in young adult survivors of pediatric CNS tumor, which provides opportunity for more targeted psychosocial interventions.

Living with the cerebellar mutism syndrome: long-term challenges of the diagnosis

BACKGROUND

After posterior fossa tumour surgery, up to 39% of children experience postoperative cerebellar mutism syndrome (CMS) characterized by mutism and other motor and cognitive impairments. There is a lack of knowledge on the patient-reported challenges and long-term needs. Consequently, no specific recommendations exist for rehabilitative and supportive interventions for patients with CMS. The aims of this study were to explore the patients' experiences related to the sequelae of CMS, to identify challenges and needs regarding support and rehabilitation in the period of growing from child to adult and to add perspectives for future developments of supportive care and rehabilitative guidelines.

METHODS

Ten semi-structured interviews were conducted with young adults diagnosed with CMS as children. A thematic analysis identified four themes describing challenges impacting aspects of the participants' lives.

RESULTS

Four main themes were identified and highlight the rehabilitative need for focus on verbal and non-verbal communication skills in addition to the physical impairments. We found that brain tumour survivors with CMS can benefit from social and educational rehabilitation, straightforward and truthful information, support in structuring their everyday lives and increased public knowledge of CMS.

CONCLUSION

Children with CMS face a variety of challenges affecting many aspects of their everyday lives. They should be entitled to the elements of a current rehabilitation initiative for childhood cancer to support patients' social disability and educational decline. Finally, we identified a need for an official information publication.

Unmet support needs in teenage and young adult childhood brain tumour survivors and their caregivers: "it's all the aftermath, and then you're forgotten about"

Purpose

Teenage and young adult (TYA) survivors of childhood brain tumours and their family caregivers can experience many late effects of treatment that can hamper the transition to living independent lives. Yet, their long-term supportive care needs are largely unknown. We investigated the supportive care needs of TYA survivors and their caregivers and explored the role and perceived use of support.

Methods

Face-to-face semi-structured interviews were conducted with survivors aged 16–30 (n = 11) who were ≥ 5 years after diagnosis and caregivers (n = 11). Interviews were recorded and transcriptions thematically analysed.

Results

Four themes emerged: (1) preferences for support and support services (unmet needs). Concerns regarding mental health, employment and financial uncertainty, the desire to live independently, and lack of support were emphasised. (2) Decline in support. Caregivers noted a drop-off in support available when transitioning to adult services. (3) Reasons for not obtaining adequate support. Several barriers to accessing support were raised, including distance and aging out of services. (4) The role of long-term hospital-based follow-up care. Participants highlighted the importance of, and reassurance from, long-term follow-up care but noted a more all-inclusive approach is required.

Conclusions

Even many years after diagnosis, TYA childhood brain tumour survivors and their caregivers continue to have unmet supportive care needs. Both TYA survivors and their caregivers can benefit from support to meet their unique needs and improve long-term quality of life. Understanding unmet needs and recognising what services are required due to the late effects of treatment is critical to improving long-term quality of survival.

Understanding the trajectory of research efforts in atypical teratoid rhabdoid tumors: a bibliometric analysis of the 50 most impactful studies to date

PURPOSE

Atypical teratoid/rhabdoid tumor (ATRT) is a highly malignant embryonal tumor of the central nervous system (CNS) that occurs predominantly in children. More is being discovered about this disease to improve understanding and outcomes. The aim of this analysis was to evaluate citation and other bibliometric characteristics of the 50 most cited articles in the contemporary literature in order to better model the trajectory of our current efforts.

METHODS

Elsevier's Scopus database was searched for the 50 most cited articles about ATRT. To look for trends, earliest 25 articles were separated from the latest 25 articles and then were compared. Various bibliometric parameters were summarized and compared using Pearson's chi-square and Mann-Whitney U tests.

RESULTS

The 50 most cited articles were published between 1990 and 2016, from 5 unique countries in 29 unique journals, with genetic and retrospective observational cohort studies the most common design (n = 11 each). Overall median values were as follows: citation count, 145.4 citations (range, 67-626); citation rate per year, 11.7 (range, 3.5-51.4); number of authors 12 (range, 1-95); with 32 (64%) originating from the USA. Compared with older articles, newer articles had statistically lower citation counts (101.8 vs 189.0; P < 0.01), higher number of authors (17.3 vs 6.6; P < 0.01), and were less likely published from the USA (40% vs 88%; P < 0.01) CONCLUSIONS: The 50 most cited articles about ATRT were characterized in this analysis. There was a distinct focus in these studies on the genetic composition and consequences of these tumors. Trends over time suggest greater impact will be had in highly collaborative efforts worldwide. Moving forward, it will be of great interest to see how the findings of these basic science finding will translate into future clinical studies.

Facilitating the adherence journey of children, adolescents, and adults on long-term growth hormone therapy

Growth hormone deficiency in children and adolescents is treated with recombinant growth hormone injections, with the aim of helping patients reach a final height that falls within their genetically predicted adult height. While this treatment is very successful, overcoming issues of patient adherence is a challenge at each stage of the treatment journey, from early childhood to adulthood. An advisory board of senior endocrine nurses convened to discuss what strategies and tools work well in achieving adherence, and the best practices they identified-including the key strategies of choice, information, teamwork, and support-were presented at the 2016 meeting of The Endocrine Society. The advisers agreed that key steps to improve adherence include: patient/carer-centric endocrine nursing services, good-quality education and support, patient autonomy (where possible), broader treatment choice (in terms of device and self-injection), optimal follow-up from childhood to adulthood, and sharing of best practices.

A systematic review of factors related to children's quality of life and mental health after brain tumor

PURPOSE

Brain tumor has been found to have a major impact on children's quality of life (QOL); yet, the subjective impact of the illness is still not well understood. This review aimed to investigate factors related to children's subjective well-being (SWB), or self-reported QOL and mental health after brain tumor. A further aim was to determine the consistency between child and parent-proxy ratings of children's SWB and common factors associated with both child and parent-proxy ratings.

METHODS

A systematic search of PsycINFO, MEDLINE, Cumulative Index to Nursing and Allied Health Literature, Embase, and Scopus was conducted from 1980 to May 2018 to identify eligible studies. Methodological quality of these studies was assessed by 2 independent reviewers.

RESULTS

Twenty studies investigated factors related to children's self-reported mental health or QOL. Fourteen studies examined these factors from the perspectives of both children and their parents. Overall, risk factors for poor QOL included infratentorial tumors, radiation, hydrocephalus, lower IQ, and behavioral problems. Only 5 studies examined mental health outcomes, the findings of which were mixed. Relatively few studies examined psychosocial variables related to children's SWB.

CONCLUSIONS

Although several risk factors for poor QOL were identified, further research investigating mental health outcomes and the influence of psychosocial factors on children's SWB is needed to guide support interventions for pediatric brain tumor.

MRI to Assess Neurological Function

This article describes a detailed set of protocols for mouse brain imaging using MRI. We focus primarily on measuring changes in neuroanatomy, and provide both instructions for mouse preparation and details on image acquisition, image processing, and statistics. Practical details as well as theoretical considerations are provided. © 2018 by John Wiley & Sons, Inc.

Late Effects of Treatment of Pediatric Central Nervous System Tumors

Central nervous system tumors represent the most common solid malignancy in childhood. Improvement in treatment approaches have led to a significant increase in survival rates, with over 70% of children now surviving beyond 5 years. As more and more children with CNS tumors have longer survival times, it is important to be aware of the long-term morbidities caused not only by the tumor itself but also by tumor treatment. The most common side effects including poor neurocognition, endocrine dysfunction, neurological and vascular late effects, as well as secondary malignancies, are discussed within this article.

Cognitive dysfunction in children with brain tumors at diagnosis

BACKGROUND

Survivors of brain tumors have a high risk for a wide range of cognitive problems. These dysfunctions are caused by the lesion itself and its surgical removal, as well as subsequent treatments (chemo- and/or radiation therapy). Multiple recent studies have indicated that children with brain tumors (BT) might already exhibit cognitive problems at diagnosis, i.e., before the start of any medical treatment. The aim of the present study was to investigate the baseline neuropsychological profile in children with BT compared to children with an oncological diagnosis not involving the central nervous system (CNS).

METHODS

Twenty children with BT and 27 children with an oncological disease without involvement of the CNS (age range: 6.1-16.9 years) were evaluated with an extensive battery of neuropsychological tests tailored to the patient's age. Furthermore, the child and his/her parent(s) completed self-report questionnaires about emotional functioning and quality of life. In both groups, tests were administered before any therapeutic intervention such as surgery, chemotherapy, or irradiation. Groups were comparable with regard to age, gender, and socioeconomic status.

RESULTS

Compared to the control group, patients with BTs performed significantly worse in tests of working memory, verbal memory, and attention (effect sizes between 0.28 and 0.47). In contrast, the areas of perceptual reasoning, processing speed, and verbal comprehension were preserved at the time of measurement.

CONCLUSION

Our results highlight the need for cognitive interventions early in the treatment process in order to minimize or prevent academic difficulties as patients return to school.

Postcancer experiences of childhood cancer survivors: how is posttraumatic stress related to posttraumatic growth?

Understanding posttraumatic growth (PTG) and the factors associated with PTG among cancer survivors is important to improve their quality of life. This study examined PTG among 225 Korean adolescents and young adults between 15 years and 39 years of age who survived childhood cancer (58.5% males and 41.5% females). We explored the relationships between PTG and several sociodemographic and medical variables, and whether the relationships between PTG and posttraumatic stress disorder (PTSD) symptoms were linear or curvilinear. The Posttraumatic Stress Diagnostic Scale (PDS) and the Posttraumatic Growth Inventory (PTGI) were used to assess PTSD symptoms and PTG, respectively. In addition to the effects of sociodemographic and medical variables, there were linear effects of PDS on PTGI (R(2) change = .03, p = .008). No evidence of a curvilinear relationship between PDS and PTGI was found. Higher PDS scores were associated with lower PTGI scores (β = -.18). Older age (β = .41) and shorter time since diagnosis (β = -.42) were associated with greater PTGI. Understanding the factors that were associated with PTG among Korean adolescent and young adult survivors of cancer adds to the knowledge on PTG and may help develop services to promote PTG in this group.

Cognitive function in children with brain tumors in the first year after diagnosis compared to healthy matched controls

BACKGROUND

Improved survival of children with brain tumors (BTs) has increased focus on ameliorating morbidity. To reduce the risk of progressive cognitive decline, remedial strategies need to be instituted early, based upon accurate appraisal of need, yet few studies have investigated cognition in BT children early post-diagnosis. The study aims were to investigate cognition in children with primary BTs 1, 6, and 12 months post-diagnosis compared with healthy children, exploring the impact of disease and treatment variables.

METHODS

Forty-eight children aged 2-16 years with primary BTs, referred to a Regional Neurosurgical Unit over the 2-year study period were eligible for enrollment. The "best friends" model was used to recruit matched controls. Cognition was assessed using age-appropriate Wechsler Intelligence scales; Children's Memory Scale; Test of Everyday Attention for Children, and Wechsler Quicktest.

RESULTS

Patients with BTs had significantly reduced performance compared to controls early post-diagnosis in tests of Performance IQ, processing speed, verbal and visual memory, and selective attention. Improved performance over 12 months was seen in patients with BTs although also, for some measures, in controls. Significant deficits in cognitive performance were seen one year post-diagnosis for Verbal IQ; processing speed, visual and verbal immediate memory, and selective attention. Infratentorial site, high tumor grade, hydrocephalus, radiotherapy, and chemotherapy were associated with poorer functioning.

CONCLUSION

Early cognitive impairment is present in BT children, sometimes prior to radiotherapy/chemotherapy treatment, and is associated with hydrocephalus, high tumor grade and infratentorial site. Future studies should investigate the role of early rehabilitation in improving cognition.

Long-term survival of children less than six years of age enrolled on the CCG-945 phase III trial for newly-diagnosed high-grade glioma: a report from the Children's Oncology Group

BACKGROUND

We analyzed the long-term survival of children under 6 years of age (<6 years) enrolled upon the Children's Cancer Group (CCG)-945 high-grade glioma (HGG) study to determine the impact of intrinsic biological characteristics as well as treatment upon both survival and quality of life (QOL) in this younger age population.

PROCEDURE

Analyses were undertaken on patients <6 years with institutionally diagnosed HGG enrolled on the CCG-945 trial. Comparisons of survival were performed for patients <3 years of age (<3 years) (treated with intent to avoid irradiation) versus those between 3 and 6 years of age (3-6 years) (treated with irradiation and chemotherapy) at diagnosis. Discordance between the institutional diagnoses of HGG and consensus-reviewed diagnoses led us to perform further survival analyses for both groups. We compared the two groups of patients for biological markers, and evaluated the neuropsychological and QOL outcomes of long-term survivors.

RESULTS

Patients <3 years (n = 49, 19.5% of all enrolled patients) at diagnosis had a 10-year EFS and OS of 29 ± 6.5% and 37.5 ± 7%, respectively, while for patients 3-6 years (n = 34, 13.5% of all enrolled patients) 10-year EFS and OS were 35 ± 8% and 36 ± 8%, respectively. Molecular marker analysis showed that a smaller proportion of patients <3 years harbored TP53 mutations (P = 0.05). Analysis of QOL outcomes with a median length of follow-up of 15.1 years (9.5-19.2) showed comparable results.

CONCLUSIONS

QOL and survival data were similar for the two groups. A larger prospective study is justified to study the efficacy of chemotherapy only regimens in younger children.

[Endocrinological outcome in children and adolescents survivors of central nervous system tumours after a 5 year follow-up]

INTRODUCTION

Given the successful increase in survival rates with the current treatments for central nervous system tumours (CNST), survivors are at high risk for late adverse effects.

PURPOSE

To evaluate the endocrine sequelae in children with CNST according to the type of tumour and treatment received.

PATIENTS AND METHODS

A retrospective review of the clinical features, auxology, hormone determinations and imaging findings of 38 patients (36.8% females, 63.2% males) with CNST, with a minimum of 5 years follow-up, was performed.

RESULTS

The mean age at diagnosis was 5.34 ± 3.07 years, with 76.3% of the patients having at least one hormone deficiency, of which growth hormone (GH) (73.7% of all patients) was the most prevalent, followed by thyrotropin (TSH) (68.4%), corticotropin (31.6%), antidiuretic hormone (28.9%), and gonadotropin (LH/FSH) (21.1%) deficiency. Precocious puberty was found in 21.1% of patients. After 5 years of follow-up, 28.9% were obese. Craniopharyngioma had more hormone deficiencies, obesity and recurrence rates. The most frequently administered treatment was surgery + chemotherapy + radiotherapy, in 47.4% of the patients. Mean final height (20 patients) was -1.2 1.6 SDS, with a mean difference of -0.53 SDS regarding their target height.

CONCLUSIONS

1) The type of tumour and treatment received influence the endocrinological sequelae. 2) The most frequent hormone deficiencies in all types of CNST, regardless of the treatment received, were GH and TSH. 3) Early diagnosis and prompt intervention of endocrine dysfunction can reduce the morbidity and improve quality of life over the long term.

Hospitalization rates among survivors of childhood cancer in the Childhood Cancer Survivor Study cohort

BACKGROUND

Chronic health conditions are common among long-term childhood cancer survivors, but hospitalization rates have not been reported. The objective of this study was to determine overall and cause-specific hospitalization rates among survivors of childhood cancer and compare rates to the U.S. population.

PROCEDURE

The Childhood Cancer Survivor Study (CCSS) is a retrospective cohort of 5+ year survivors of childhood malignancies treated at 26 participating centers. Self-reported hospitalizations from 10,366 survivors (diagnosed 1970-1986) were compared to U.S. population rates using age- and sex-stratified standardized incidence ratios (SIRs). Reasons for hospitalization were evaluated and associations between demographic, cancer and treatment-related risk factors with hospitalization were investigated.

RESULTS

Survivors were, on average, 20.9 years from cancer diagnosis (SD: 4.6, range: 13-32) and 28.6 years of age (SD: 7.7, range: 13-51). Survivor hospitalization rates were 1.6 times the U.S. population (95% CI: 1.6; 1.7). Increased hospitalization rates were noted irrespective of gender, age at follow-up and cancer diagnosis, with highest SIRs noted among male (SIR = 2.6, 95% CI: 2.2; 3.0) and female (SIR = 2.7, 95% CI: 2.4; 3.1) survivors aged 45-54. Female gender, an existing chronic health condition and/or a second neoplasm, and prior treatment with radiation were associated with an increased risk of non-obstetrical hospitalization.

CONCLUSIONS

Survivors of childhood cancer demonstrate substantially higher hospitalization rates. Additional research is needed to further quantify the healthcare utilization and economic impact of treatment-related complications as this population ages.

Sleep disturbances in adult survivors of childhood brain tumors

PURPOSE

The aims of this study are to compare self-reported sleep quality in adult survivors of childhood brain tumors and a population-based comparison group, to identify treatment-related factors associated with sleep disturbances, and to identify the impact of post-treatment obesity and depression on sleep scores in adult survivors of childhood brain tumors.

METHODS

Randomly selected adult survivors of childhood brain tumors (n = 78) and age-, sex-, and zip code-matched population-group members (n = 78) completed the Pittsburgh Sleep Quality Index and the Brief Symptom Inventory. Sleep quality and the effect of demographic, treatment, and post-treatment characteristics were evaluated with linear and logistic regression analyses.

RESULTS

Brain tumor survivors were 2.7 (95% CI, 1.1, 6.5) times more likely than the comparison group to take greater than 30 min to fall asleep. Females in both groups reported worse sleep quality and impaired daytime functioning. Among survivors, post-treatment obesity was associated with daytime dysfunction.

CONCLUSIONS

These results agree with previous studies associating sleep, sex, and obesity and identified longer sleep latency as being a problem among childhood brain tumor survivors. Further study identifying factors contributing to sleep latency, and its impact on quality of life among adult survivors of childhood brain tumors is needed.

Health-related quality of life in pediatric cancer survivors: a multifactorial assessment including parental factors

AIM

We aimed to evaluate the health-related quality of life (HRQOL) and the effect of associated factors such as cancer type, treatment strategies, sex, age, and parental factors like education and psychopathology in pediatric cancer survivors and make a comparison with healthy children.

PATIENTS AND METHODS

"Pediatric Quality of Life Inventory (PedsQL) 4.0 TM, Generic Core Scale" for children and parents, and "Brief Symptom Inventory" for parents were used. Three hundred and two survivors without major mental or motor deficit and 272 healthy controls of 8 to 18 years of age were enrolled to study.

RESULTS

Comparison of scores according to child self-report between survivor and control groups revealed lower points in physical and school subscale of survivor group (P<0.01 and P<0.001, respectively). Female survivors had reported significantly worse HRQOL in physical and emotional subscales of PedsQL than male survivors (P<0.001). Female survivors of ≥16 years of age had reported worse scores in school subscale than females of younger age groups and male survivors of same age group. Parents of control group reported better results in school subscales (P<0.001) and social functioning subscales (P<0.05) than parents of survivor group. Brief Symptom Inventory score had significant effect on child self-report and parent proxy-report of physical functioning (P<0.001), emotional functioning (P<0.001), social functioning (P<0.001), and school subscales (P<0.001) of PedsQL. Significantly better scores of physical functioning subscale in the survivors whose parents are university graduate than the survivors whose parents are primary school graduate were detected (P<0.001). The survivors with central nervous system tumors had reported lower scores in the social, emotional, physical, and school functioning subscales of PedsQL than patients with non-Hodgkin and Hodgkin lymphoma (P<0.001). Child self-report school subscale scores were lower in survivors treated with radiotherapy in combination or as sole therapy than survivors in whom radiotherapy was not given (P<0.001).

CONCLUSIONS

Our study has provided evidence about less-studied determinants of HRQOL like parental factors such as psychopathology or educational level in childhood cancer survivors. Future research can build on this evidence to obtain additional factors other than well-known medical and treatment-related factors.

Pediatric low-grade glioma survivors experience high quality of life

PURPOSE

The purpose of this study was to determine pediatric low-grade glioma survivors' quality of life and late morbidity including motor, sensory, and cognitive deficits.

METHODS

We surveyed 49 survivors and their parents (KINDL questionnaire).

RESULTS

Despite tumor and treatment-associated morbidity, survivors (25 boys and 24 girls, median age at diagnosis 7.8 years), but not their parents, rated their total quality of life higher than their peers. Although all survivors had some late morbidity, half of them were able to conduct their daily lives without restriction.

CONCLUSION

These results reflect survivors' effective coping mechanisms and underscore the difficulties of assessing quality of life in pediatric populations.

Prospective evaluation of legal difficulties and quality of life in adult survivors of childhood cancer

BACKGROUND

Adult survivors of childhood cancer (ASCC), especially those of the central nervous system (CNS), have increased risks of educational and social difficulties. It is therefore hypothesized they are more likely to encounter legal difficulties (LDs), such as workplace discrimination and disability insurance denials, which may negatively affect their quality of life (QoL).

PROCEDURE

We developed a survey to collect information on patients' legal needs. QoL was assessed using the Functional Assessment of Cancer Therapy (FACT).

RESULTS

We prospectively approached 112 ASCC, 111 (99.1%) of whom completed the survey. The median age of respondents was 7 years at diagnosis and 31 years at survey completion. CNS tumors were the most common malignancy (32.4%). LDs were common overall (40.7%), though more prevalent in patients with CNS versus non-CNS tumors (58.6% vs. 32.3%; P = 0.023). The most prevalent LD was workplace discrimination (58.3%). On multivariate analysis, CNS tumor was the only variable significantly associated with LDs (OR = 4.49, P = 0.041). Individuals with LDs had lower QoL scores compared to those without LDs (79.96 versus 91.83 on the FACT; P =  0.005). On multivariate analysis, individuals with LDs had lower QoL scores (14.95 points lower on the FACT), which is both clinically and statistically significant (P = 0.047).

CONCLUSIONS

Legal difficulties are common in adult survivors of childhood cancer, especially those with brain tumors. Furthermore, individuals with legal difficulties have worse quality of life. Research is needed to develop effective and accessible legal resource programs.

Physical performance limitations among adult survivors of childhood brain tumors

BACKGROUND

Young adult survivors of childhood brain tumors (BTs) may have late effects that compromise physical performance and everyday task participation. The objective of this study was to evaluate muscle strength, fitness, physical performance, and task participation among adult survivors of childhood BTs.

METHODS

In-home evaluations and interviews were conducted for 156 participants (54% men). Results on measures of muscle strength, fitness, physical performance, and participation were compared between BT survivors and members of a population-based comparison group by using chi-square statistics and 2-sample t tests. Associations between late effects and physical performance and between physical performance and participation were evaluated in regression models.

RESULTS

: The median age of BT survivors was 22 years (range, 18-58 years) at the time of the current evaluation, and they had survived for a median of 14.7 years (range, 6.5-45.9 years) postdiagnosis. Survivors had lower estimates of grip strength (women, 24.7 + or - 9.2 kg vs 31.5 + or - 5.8 kg; men, 39.0 + or - 12.2 kg vs 53.0 + or - 10.1 kg), knee extension strength (women, 246.6 + or - 95.5 Newtons [N] vs 331.5 + or - 5.8 N; men, 304.7 + or - 116.4 N vs 466.6 + or - 92.1 N), and peak oxygen uptake (women, 25.1 + or - 8.8 mL/kg per minute vs 31.3 + or - 5.1 mL/kg per minute; men, 24.6 + or - 9.5 mL/kg per minute vs 33.2 + or - 3.4 mL/kg per minute) than members of the population-based comparison group. Physical performance was lower among survivors and was associated with not living independently (odds ratio [OR], 5.0; 95% confidence interval [CI], 2.0-12.2) and not attending college (OR, 2.3; 95% CI 1.2-4.4).

CONCLUSIONS

Muscle strength and fitness values among BT survivors were similar to those among individuals aged > or = 60 years and were associated with physical performance limitations. Physical performance limitations were associated with poor outcomes in home and school environments. The current data indicated an opportunity for interventions targeted at improving long-term physical function in this survivor population.

Neurocognitive status in long-term survivors of childhood CNS malignancies: a report from the Childhood Cancer Survivor Study

To assess neurocognitive functioning in adult survivors of childhood Central Nervous System (CNS) malignancy, a large group of CNS malignancy survivors were compared to survivors of non-CNS malignancy and siblings without cancer on a self-report instrument (CCSS-NCQ) assessing four factors, Task Efficiency, Emotional Regulation, Organization and Memory. Additional multiple linear regressions were used to assess the contribution of demographic, illness, and treatment variables to reported neurocognitive functioning in CNS malignancy survivors and the relationship of reported neurocognitive functioning to socioeconomic indicators. Survivors of CNS malignancy reported significantly greater neurocognitive impairment on all CCSS-NCQ factors than non-CNS cancer survivors or siblings (p < .01). Within the CNS malignancy group, medical complications (hearing deficits, paralysis and cerebrovascular incidents) resulted in a greater likelihood of reported deficits on all CCSS-NCQ factors. Total or partial brain irradiation and ventriculoperitoneal (VP) shunt placement was associated with greater impairment on Task Efficiency and Memory. Female gender was associated with a greater likelihood of impaired scores on Task Efficiency and Emotional Regulation, while diagnosis before age 2 years resulted in less likelihood of reported impairment on the Memory factor. CNS malignancy survivors with more impaired CCSS-NCQ scores demonstrated significantly lower educational attainment (p < .01), less household income (p < .001), less full time employment (p < .001), and fewer marriages (p < .001). Survivors of childhood CNS malignancy were found to be at significant risk for neurocognitive impairment that continues to adulthood and is correlated with lower socioeconomic achievement.

Factors associated with sleep-wake disturbances in child and adult survivors of pediatric brain tumors: a review

PURPOSE/OBJECTIVES

To identify factors associated with sleep-wake disturbances in pediatric and adult survivors (aged older than 18 years) of pediatric brain tumors.

DATA SOURCES

A computerized literature search was completed using MEDLINE, CINAHL, CancerLit, Dissertation Abstracts International, and PsycINFO. The search and a personal communication with one author discovered 25 English-language research articles and case reports describing sleep-wake patterns in brain tumor survivors from 1966-2008.

DATA SYNTHESIS

Disease- and treatment-related factors from direct injury to the hypothalamus results in irregular melatonin secretion and low hypocretin levels. This contributes to decreased daytime alertness, which remains the most reported sleep-wake disturbance in brain tumor survivors. Patients with craniopharyngiomas, radiation dose more than 3,500 cGy, and younger age at time of treatment experienced more severe sleep dysfunction.

CONCLUSIONS

Patients with brain tumors experience a disruption of sleep-wake patterns associated with major dysfunction in the hypothalamic-pituitary axis, affecting both Process S (homeostasis) and Process C (circadian) from the Two-Process Model of Sleep Regulation. Various demographic-, disease-, and treatment-related variables are involved in driving the onset of sleep disturbances. Interventions are needed to improve daytime function and decrease the effect of sleep disturbances on quality of life.

IMPLICATIONS FOR NURSING

Current sleep literature has identified patterns of sleep disturbances in cross-sectional studies of brain tumor survivors. Rigorous longitudinal designs are needed for future studies to detect onset patterns and trajectory of sleep-wake disorders. Intervention studies are needed to impact excessive daytime sleepiness, irregular sleeping and waking patterns, and other identified sleep-wake disorders.

Differences in activities of daily living performance between long-term pediatric sarcoma survivors and a matched comparison group on standardized testing

BACKGROUND

In a cross-sectional study examining late effects of pediatric sarcoma therapy, long-term survivors were evaluated on their activities of daily living (ADL) performance.

PROCEDURE

Thirty-two persons with Ewing sarcoma family of tumors, rhabdomyosarcoma, and non-rhabdomysarcoma-soft tissue sarcoma enrolled an average of 17 years after treatment. Participants were evaluated using the Assessment of Motor and Process Skills (AMPS) 1, a standardized observational evaluation of ADL task performance. Means and 95% confidence intervals for ADL motor and ADL process ability measures were calculated for four groups: (1) sarcoma survivors, (2) "well" adults matched for age and gender, (3) "well" adults matched for gender that were 10 years older, and (4) "well" adults matched for gender that were 20 years older.

RESULTS

ADL motor ability was significantly lower for sarcoma survivors than for the age- and gender-matched comparison group (P < 0.05). There was no significant difference between ADL motor ability of sarcoma survivors and the comparison group 10 years older, but sarcoma survivors had significantly better ADL motor ability (P < 0.05) than the oldest comparison group (20 years older). Sarcoma survivors had significantly worse ADL process ability than the age-matched group (P < 0.05). There was no difference in ADL process ability between the sarcoma survivors and comparison groups that were 10 and 20 years older.

CONCLUSIONS

This first report of a clinical evaluation of ADL limitation in pediatric sarcoma survivors treated with intensive multimodal cancer therapy suggests that influences on performance of daily life activities are more common than previously reported.

Remediation of attention deficits in children: a focus on childhood cancer, traumatic brain injury and attention deficit disorder

The purpose of this review is to examine the status of attention training in children. This body of literature is very small so the review examines available efficacy studies in three paediatric groups: children who have survived cancer affecting the central nervous system (CNS) or whose treatment has impacted the CNS, children with traumatic brain injury (TBI) and children with attention deficit disorder (ADD). Seven studies/case reports are reviewed. The results are encouraging, with six of seven describing some improvement on attention measures. An original case study is presented using Pay Attention! materials with a 6 year old survivor of acute lymphoblastic leukaemia (ALL). This represents only the third report of the use of attention training materials with a survivor of childhood cancer and the first case report of the use of these materials with a very young child (6 years of age).

Survival and late effects on development of patients with infantile brain tumor

BACKGROUND

Most infants with brain tumor may have a poor prognosis. The aim of the present study was to retrospectively analyze the survival and outcome with regard to mental and physical development in 11 subjects with brain tumor; these tumors were diagnosed when the patients were under 1 year of age.

METHODS

The histological diagnoses of these tumors were astrocytoma, n = 3; pineocytoma, n = 2; teratoma, n = 1; ependymoma, n = 1; atypical teratoid/rhabdoid tumor, n = 1; glioblastoma, n = 1; medulloblastoma, n = 1; and choroid plexus papilloma, n = 1. Surgical resection was performed in eight patients, and adjuvant chemotherapy was administered to all except one patient with choroid plexus papilloma. Radiotherapy was additionally performed for four of the 10 chemotherapy patients.

RESULTS

Six patients survived. Among the surviving patients, five were under no treatment for 50-167 months after the diagnosis (median duration, 89 months), while one received chemotherapy for 20 months. Five patients exhibited mental retardation, and one patient experienced normal development after surgical removal of his choroid plexus papilloma. Diencephalic syndrome developed in one patient with pilomyxoid astrocytoma that necessitated hormone replacement therapy, and bodyweight over +2 SD was observed in two patients. The remaining five patients died 11-111 months after diagnosis (median duration, 24 months).

CONCLUSION

The prognosis of infantile brain tumor with regard to mortality and developmental outcome remains poor. Furthermore, survivors require comprehensive medical and social support for an extended period.

High-risk populations identified in Childhood Cancer Survivor Study investigations: implications for risk-based surveillance

Childhood cancer survivors often experience complications related to cancer and its treatment that may adversely affect quality of life and increase the risk of premature death. The purpose of this manuscript is to review how data derived from Childhood Cancer Survivor Study (CCSS) investigations have facilitated identification of childhood cancer survivor populations at high risk for specific organ toxicity and secondary carcinogenesis and how this has informed clinical screening practices. Articles previously published that used the resource of the CCSS to identify risk factors for specific organ toxicity and subsequent cancers were reviewed and results summarized. CCSS investigations have characterized specific groups to be at highest risk of morbidity related to endocrine and reproductive dysfunction, pulmonary toxicity, cerebrovascular injury, neurologic and neurosensory sequelae, and subsequent neoplasms. Factors influencing risk for specific outcomes related to the individual survivor (eg, sex, race/ethnicity, age at diagnosis, attained age), sociodemographic status (eg, education, household income, health insurance) and cancer history (eg, diagnosis, treatment, time from diagnosis) have been consistently identified. These CCSS investigations that clarify risk for treatment complications related to specific treatment modalities, cumulative dose exposures, and sociodemographic factors identify profiles of survivors at high risk for cancer-related morbidity who deserve heightened surveillance to optimize outcomes after treatment for childhood cancer.

The influence of pediatric cancer diagnosis and illness complication factors on parental distress

OBJECTIVE

We investigated how primary diagnosis and risk for diagnosis-related complication factors influence parental distress after a child's cancer diagnosis.

METHODS

We used a model in which "complicated childhood cancers" were grouped into 1 category, after identifying a set of potentially influential illness complication variables. This category included central nervous system tumors, acute myeloid leukemia, and bone tumors. Parental distress in that category (n=144) was compared with distress after acute lymphoblastic leukemia (n=177) in the child. In addition, comparisons were made between parents of the specific diagnosis groups. A multidimensional questionnaire assessing symptoms of distress was used.

RESULTS

Parents in the complicated cancer category showed significantly heightened disease-related fear, anxiety, depression, loss of control, late effects-related uncertainty, and poorer self-esteem compared with parents of children with acute lymphoblastic leukemia. Significantly heightened parental distress was associated with the child having been treated with cranial irradiation.

CONCLUSIONS

Relatively heightened distress in parents of children with complicated cancer is influenced by diagnosis-related factors like an intricate prediagnostic phase, and uncertainty about late effects. Heightened vulnerability to distress signals exceptional needs for support and information among parents of children treated for central nervous system or bone tumors.