Pain in long-term adult survivors of childhood cancers and their siblings: a report from the Childhood Cancer Survivor Study

"You don't accept he's completely ok": a reflexive thematic analysis of parents' roles in monitoring their child's health and symptoms after finishing childhood cancer treatment

OBJECTIVES/PURPOSE

Childhood cancer survival brings continued mental and physical health challenges both for the child and for the family. In this study, we investigated how parents viewed their roles in their child's health and symptom monitoring during the survivorship period.

METHODS

Twenty-one parents of childhood cancer survivors (n = 18 mothers; parent mage = 49.78 years, child mage = 18.50 years; range = 12-25 years), whose children were at least one year off-treatment (m = 3.67 years; SD = 2.25; various diagnoses), completed semi-structured interviews. Interviews were recorded, transcribed, and analyzed using reflexive thematic analysis.

RESULTS

Analyses generated three themes which reflect roles that parents may adopt in the context of monitoring symptoms in their childhood cancer survivor. "Vigilant Mama and Papa" (theme 1) described parents who expressed a strong sense of responsibility for protecting their child's health during survivorship resulting in careful monitoring of their child's symptoms and health. "Pragmatic Mamas and Papas" (theme 2) described parents who adopted an approach to symptom and health monitoring that emphasized moving past cancer and focusing on the future. Finally, "Encouraging Mamas and Papas" (theme 3) described parents who focused on educating and preparing their child to develop an autonomous approach to health and symptom self-monitoring as they transitioned to survivorship and adulthood.

CONCLUSION

Parents take on varying roles in monitoring their child's symptoms and health after finishing childhood cancer treatment.

IMPLICATIONS FOR CANCER SURVIVORS

Understanding the ways in which parents continue to be involved in their child's cancer journey helps researchers develop interventions to support dyadic coping in survivorship.

Body Mindsets are Associated With Pain and Threat-Related Risk Factors for Pain in Survivors of Childhood Cancer

Pain is a common consequence of childhood cancer. While most research has examined biomedical predictors of post-cancer pain, biopsychosocial conceptualisations such as the cancer threat interpretation (CTI) model hold promise for guiding comprehensive pain management strategies. Guided by the CTI model, this cross-sectional study evaluated correlates of post-cancer pain in childhood cancer survivors including threat-related risk factors (bodily threat monitoring, fear of cancer recurrence, help-seeking) and mindsets about the body. In the preceding three months, 21.8% of the survivors reported chronic pain (>3 months), and 14.3% experienced pain most days. Greater bodily threat monitoring, more fear of cancer recurrence, and more help-seeking were associated with more pain. There was heterogeneity in the mindsets that survivors of childhood cancer hold about their bodies. Holding the mindset that the 'body is an adversary' was associated with more pain, greater bodily threat monitoring, and more fear of cancer recurrence. Holding the mindset that the 'body is responsive' was associated with less bodily threat monitoring, while the mindset that the 'body is capable' was associated with greater help-seeking. A path model demonstrated a significant combined indirect effect of the 'body is an adversary' mindset on pain through bodily threat monitoring and fear of cancer recurrence. Overall, this study supported that a sub-group of childhood cancer survivors experience persistent and interfering pain and provided cross-sectional support for threat-related correlates for pain aligning with the CTI model. Body mindsets were associated with pain and threat-related correlates and may represent a novel target to support survivors with pain. PERSPECTIVE: This article presents associations of body mindsets, threat-related risk factors, and pain in survivors of childhood cancer (aged 11-25), guided by the Cancer Threat Interpretation model. The study indicates that body mindsets may be novel targets to embed in comprehensive post-cancer pain management approaches to support young survivors with pain.

Healthcare providers' promotion of physical activity among child and adolescent cancer survivors: strategies and challenges

PURPOSE

This study aims to investigate how healthcare providers (HCPs) promote physical activity (PA) to child and adolescent cancer survivors.

METHODS

Semi-structured interviews were conducted with HCPs (n = 16; women n = 12; men n = 4) who provide care for cancer survivor youth (age 3 to 18). Participants represented 7 professions, including child life specialists, oncologists, nurse practitioners, physical therapists, and social workers. A reflexive thematic analysis was conducted to explore the techniques that HCPs use to promote PA for this patient population and ways PA promotion can improve.

RESULTS

HCPs use five strategies to promote PA to cancer survivor youth: (1) broadening the definition of PA, (2) tailoring PA recommendations, (3) including families, (4) connecting patients to programming, and (5) promoting patient motivation.

CONCLUSIONS

This research highlights techniques that HCPs use to promote PA to young cancer survivors and reveals the need for additional ways to support HCPs to improve PA promotion for child and adolescent cancer survivors. While HCPs emphasized the importance of PA for this patient population, they navigate barriers that limit the quality of PA discussions.

IMPLICATIONS FOR CANCER SURVIVORS

Further research should explore interventions to improve PA promotion and PA participation among child and adolescent cancer survivors. By understanding the perspectives of HCPs, patients, and their families, PA promotion strategies can be improved, and more programs that support both patients and practitioners may be developed.

Overview of radiotherapy-induced chronic pain in childhood cancer survivors: A narrative review

Radiotherapy is an important aspect of oncological treatment in several childhood cancers. However, radiotherapy is known to have numerous side effects, including detrimental effects on growth, neurocognitive impairment, and the development of secondary malignancies. One less studied long-term side effect of pediatric radiotherapy treatment is chronic pain. While the short-term toxicities of radiotherapy resolve over a few weeks to months, the chronic pain caused by radiotherapy-induced tissue damage can significantly affect children's quality of life. As long-term childhood cancer survivors age into adulthood, they are typically followed up by a wide variety of doctors, not all of whom may be familiar with radiotherapy-induced chronic pain and its management. The aim of this review is to discuss the various common manifestations of radiotherapy-related pain in children, as well as ways to identify and manage these. Common radiotherapy-related side effects leading to chronic pain symptoms include radiation fibrosis, enteritis, dermatitis, lymphedema, neuropathic pain, and effects on bone development. The pathophysiology, evaluation and management of these are briefly summarized in this review. This is followed by an overview of radiotherapy techniques that allow greater sparing of normal tissue, minimizing future painful side effects. Finally, the assessment of pain in children is described, as well as strategies for management, and red flag symptoms that should prompt urgent specialist referral. In conclusion, a good understanding of the long-term side effects of radiotherapy treatment in children is essential for the various medical professionals that follow-up the child in the years after treatment. For young children, the evaluation of pain is in itself a challenge, and effects on growth, development, and learning are crucial. For older children, social and psychological factors become increasingly important. As radiation therapy techniques continue to advance, the spectrum and incidence of chronic pain syndromes may change over time.

Childhood cancer confers increased risk of migraine - A Danish nationwide register study

BACKGROUND

Investigations of migraine among childhood cancer survivors have predominantly relied on self-reported information and hospital discharge diagnoses. Alone, both approaches are liable to bias. We used Danish nationwide registers to obtain data on both prescriptions of acute migraine medications (antimigraines) and hospital discharge diagnoses of migraine to assess the relative risk of migraine across a wider spectrum of migraine presentations than previously studied.

METHODS

We followed a Danish population-based cohort of 7771 individuals with childhood cancer diagnosed in the period from Jan 1st, 1978 to Dec 31st, 2017, for risk of prescription antimigraine initiation and for risk of hospitalization due to migraine. Rates of hospitalization were assessed for the entire follow-up period whereas rates of antimigraine initiations were assessed in the period from Jan 1st, 1997, to Dec 31st, 2017. Relative to the general population without childhood cancer, standardized incidence ratios (SIRs) were calculated for each outcome.

RESULTS

Individuals exposed to childhood cancer were at increased risk of antimigraine initiation (SIR of 1.24, 95% CI: 1.11-1.38) and of migraine hospitalization (SIR of 2.44, 95% CI: 1.87-3.12) from the day of their cancer diagnosis and up to 40 years after.

CONCLUSIONS

Individuals diagnosed with childhood cancer have a higher risk of migraine of varying presentations, in addition to migraine resulting in hospitalization as previously reported. This potentially preventable problem warrants clinical attention.

Pain, depressive symptoms, and health-related quality of life among survivors of pediatric hematopoietic stem cell transplant

OBJECTIVE

Pediatric hematopoietic stem cell transplant (HCT) is an intensive medical procedure associated with significant late effects, of which pain is a prominent example. While pain is associated with increased depressive symptoms and health-related quality-of-life (HRQoL) impairments in other pediatric chronic illness populations, associations between these variables are not well understood in pediatric HCT. Clarifying these associations may inform clinical interventions to improve health outcomes following pediatric HCT. This study aimed to investigate the relations between pain intensity, depressive symptoms, and HRQoL in survivors of pediatric HCT.

METHOD

Fifty-one survivors of pediatric HCT (Mage  = 14.3 years, standard deviation [SD] = 4.3; 58.8% male; 80.4% White) completed self-report measures of pain intensity, depressive symptoms, and HRQoL. Demographic and disease information was collected via demographic forms and medical record review. Path analysis was used to examine hypothesized associations between pain intensity, depressive symptoms, and HRQoL.

RESULTS

Analyses revealed direct effects of pain intensity on depressive symptoms (estimate [Est.] = .23, p < .001) and HRQoL (Est. = -.2, p = .04), and direct effects of depressive symptoms on HRQoL (Est. = -.68, p < .001). Depressive symptoms also mediated the relationship between pain intensity and HRQoL (Est. = -.16, p = .006).

CONCLUSIONS

Greater pain intensity was associated directly with increased depressive symptoms and indirectly with HRQoL through depressive symptoms. Results of this study suggest that multitargeted cognitive behavioral interventions that address pain and depressive symptoms may improve HRQoL ratings in survivors of pediatric HCT.

Employment among Childhood Cancer Survivors: A Systematic Review and Meta-Analysis

To date, there are heterogeneous studies related to childhood cancer survivors’ (CCS) employment rates. Given the importance of this topic, we aimed to perform a systematic review and meta-analysis to investigate the prevalence of employment among CCS and to examine its association with socio-demographic and clinical factors. We followed the PRISMA guidelines to search for pertinent articles in relevant electronic databases. Eighty-nine articles comprising 93 cohorts were included. The overall prevalence of employment was 66% (CI: 95% 0.63–0.69). Subgroup meta-analyses showed that lower rates were found for central nervous system tumor survivors (51%, CI: 95% 0.43–0.59), and for CCS treated with cranial-radiotherapy (53%, CI: 95% 0.42–0.64) or haematopoietic stem-cell transplantation (56%, CI: 95% 0.46–0.65). The studies conducted in Asia highlighted employment rates of 47% (CI: 95%, 0.34–0.60). Univariate meta-regressions identified the following socio-demographic factors associated with higher rates of employment: a female gender (p = 0.046), a higher mean age at the time of investigation (p = 0.00), a longer time since diagnosis (p = 0.00), a higher educational level (p = 0.03), and a married status (p = 0.00). In conclusion, this systematic review and meta-analysis provides evidence that two-thirds of CCS are employed worldwide. Identifying vulnerable groups of CCS may allow for the design of multidisciplinary support strategies and interventions to promote employment in this population.

Pain science education for children living with and beyond cancer: Challenges and research agenda

Pain in children living with and beyond cancer is understudied and undertreated. Pain science education (PSE) is a conceptual change strategy facilitating patients' understanding of the biopsychosocial aspects of pain. Preliminary studies on the adaptation of PSE interventions to adults with and beyond cancer provide a foundation for pediatric research. PSE could help childhood cancer survivors experiencing persistent pain and pain-related worry after active treatment. PSE may also help children receiving cancer treatment, providing them with a foundation of adaptive pain beliefs and cognitions, and preparing them for procedural and treatment-related pain. We direct this paper toward pediatric oncology clinicians, policy makers, and researchers working with children living with and beyond cancer. We aim to (a) identify challenges in adapting PSE for children living with and beyond cancer, (b) offer possible solutions, and (c) propose research questions to guide the implementation of PSE for children living with and beyond cancer.

Trajectories of Pain Severity and Interference Among Adolescent and Young Adults With Cancer: A Microlongitudinal Study

OBJECTIVE

Cancer-related pain is a pervasive concern among adolescent and young adults (AYA) with cancer and is an emerging long-term health concern. Few studies have examined the complex contributions to pain among AYA. We aimed to fill a gap by (1) identifying subgroups of AYA with distinct patterns of pain severity and interference over time and (2) explore possible predictors of these patterns.

METHODS

Daily text messages over a 9-week period were used to model group-based trajectory analyses of pain severity and interference by identifying subgroups of AYA who experience common patterns of changes in pain. Demographic, medical, physical symptom burden, and psychological distress were examined as possible predictors of these patterns.

RESULTS

AYA were on average 16.93 years old and 2.5 years since diagnosis. Subgroups of AYA were identified for pain severity and interference over time: high variability (37.7%; 37.7%, respectively), consistent high pain (35.8%; 18.9%, respectively), and consistent low pain (26.4%; 43.4%, respectively). AYA with greater psychological distress were more likely to belong to the high consistent pain severity and interference groups. AYA with greater physical symptoms were more likely to belong to the high consistent pain interference group. No significant associations between demographic/medical characteristics and trajectory subgroups were found.

CONCLUSIONS

AYA with elevated physical and psychological symptoms were more likely to experience high consistent pain severity and pain interreference over time. Interventions aimed at reducing pain through focusing on teaching AYA how to alleviate physical symptoms and teaching coping skills to manage psychological distress may be beneficial.

The Role of Vascular-Immune Interactions in Modulating Chemotherapy Induced Neuropathic Pain

Chemotherapy causes sensory disturbances in cancer patients that results in neuropathies and pain. As cancer survivorships has dramatically increased over the past 10 years, pain management of these patients is becoming clinically more important. Current analgesic strategies are mainly ineffective and long-term use is associated with severe side effects. The issue being that common analgesic strategies are based on ubiquitous pain mediator pathways, so when applied to clinically diverse neuropathic pain and neurological conditions, are unsuccessful. This is principally due to the lack of understanding of the driving forces that lead to chemotherapy induced neuropathies. It is well documented that chemotherapy causes sensory neurodegeneration through axonal atrophy and intraepidermal fibre degeneration causing alterations in pain perception. Despite the neuropathological alterations associated with chemotherapy-induced neuropathic pain being extensively researched, underlying causes remain elusive. Resent evidence from patient and rodent studies have indicated a prominent inflammatory cell component in the peripheral sensory nervous system in effected areas post chemotherapeutic treatment. This is accompanied by modulation of auxiliary cells of the dorsal root ganglia sensory neurons such as activation of satellite glia and capillary dysfunction. The presence of a neuroinflammatory component was supported by transcriptomic analysis of dorsal root ganglia taken from mice treated with common chemotherapy agents. With key inflammatory mediators identified, having potent immunoregulatory effects that directly influences nociception. We aim to evaluate the current understanding of these immune-neuronal interactions across different cancer therapy drug classes. In the belief this may lead to better pain management approaches for cancer survivors.

Long-term alterations in somatosensory functioning in survivors of childhood cancer

ABSTRACT

Cancer and its treatment can have lasting consequences on somatosensation, including pain, which is often underrecognized and undertreated. Research characterizing the impact of cancer on pain and sensory processing in survivors of childhood cancer is scarce. This study aimed to quantify generalized differences in pain and sensory processing in survivors of childhood cancer compared with reference data using a standardized thermal and mechanical quantitative sensory testing (QST) protocol. The association between demographic, clinical (eg, leukemia vs other cancers and treatment exposures), and psychosocial (eg, anxiety and pain catastrophizing) variables and sensitivity to pain and sensory stimuli were also evaluated. Participants were 56 survivors of various types of childhood cancer (52% male, Mage = 13.5 years, SD = 3.2, range = 8-17 years). On average, children were 7 years (SD = 4.1, range = 1.2-16.5) post treatment. Almost all participants (86%) had at least 1 abnormal QST parameter compared with age- and sex-matched reference data; however, few participants self-reported the presence of sensory abnormalities. Generally, participants exhibited reduced sensitivity across the QST parameters examined (Ps < 0.05, ds = 0.40-3.45). A significant minority (45%) also exhibited pain sensitization (P <0.001, d = 0.42). Several risk factors for changes in sensory processing were identified, including current age, history of leukemia, certain treatment exposures (eg, vincristine cumulative dose, major surgery, and bone marrow or stem cell transplant), time off treatment, and higher anxiety and pain catastrophizing scores. Overall, this study demonstrated that somatosensory changes are prevalent in survivors of childhood cancer years after the completion of treatment. Future research is needed to understand long-term implications of altered somatosensation in this complex population.

Protocol of a mixed-method randomised controlled pilot study evaluating a wilderness programme for adolescent and young adult cancer survivors: the WAYA study

INTRODUCTION

The majority of childhood, adolescent and young adult (AYA) cancer survivors suffer from long-term and late effects such as fatigue, psychological distress or comorbid diseases. Effective health promotion strategies are needed to support the health of this vulnerable group. This protocol provides a methodological description of a study that aims to examine the feasibility and safety of performing a randomised clinical trial (RCT) on a wilderness programme that is developed to support the health of AYA cancer survivors.

METHODS AND ANALYSIS

The pilot RCT study has a mixed-method design, including quantitative and qualitative evaluations. Participants are AYAs, aged 16-39 years, that have been diagnosed with cancer during childhood, adolescence or young adulthood. A total of 40 participants will be randomly assigned to a wilderness programme (n=20) or a holiday programme (n=20). Both arms include participation in an 8-day summer programme, followed by a 4-day programme 3 months later. Primary outcomes are feasibility and safety parameters such as time to recruitment, willingness to be randomised, programme adherence and adverse effects. Secondary outcomes include self-reported health such as self-esteem, quality of life, self-efficacy and lived experiences. Descriptive statistics will be used to analyse outcomes and explore indications of differences between the programmes. Interviews are analysed by directed content analysis and hermeneutic phenomenology. A convergent parallel mixed-method analysis design will be applied to integrate quantitative and qualitative data. Results of this feasibility study will inform the preparation for a larger RCT with AYA cancer survivors.

ETHICS AND DISSEMINATION

The study protocol is approved by the Swedish Ethical Review Authority (reference: 2020-00239). This study will be performed between January 2021 and December 2023. Results will be published in international peer-reviewed journals, presented at conferences and disseminated to participants, cancer societies, healthcare professionals and outdoor instructors.

TRIAL REGISTRATION NUMBER

NCT04761042.

Unique associations of pain frequency and pain-related worry with health-related quality of life in survivors of childhood cancer

More than one-third of childhood cancer survivors are worried about pain as a sign of disease recurrence; pain-related worry explained unique variance in health-related quality of life.

Introduction:

Pain is common during childhood cancer treatment, can persist into survivorship, and can negatively affect health-related quality of life in survivors of childhood cancers (SCCs).

Objective:

The objective of this brief report was to assess pain frequency, pain-related worry, and their (unique) associations with health-related quality of life in SCCs.

Methods:

One hundred eleven SCCs (52% female individuals, M age: 17.67 years, range 8–25 years) completed self-report measures of pain frequency, pain-related worry, and health-related quality of life.

Results:

More than two-thirds (70%) of SCCs reported pain in the previous month (M = 1.39, SD = 1.17), and 15% reported experiencing pain often or almost always. More than one-third (39%) reported worrying about pain as a sign of cancer recurrence (M = 0.73, SD = 1.07), and 9% reported worrying about pain a lot or a whole lot. In multivariate regression models that controlled for sex, age at diagnosis, and time off treatment, both pain frequency and pain-related worry were significantly associated with physical health-related quality of life, indicating that they contribute unique variance to health-related quality of life after childhood cancer. For emotional health-related quality of life, pain frequency was no longer a significant predictor once pain-related worry was added to the model, indicating that pain-related worry may be particularly important for understanding emotional health-related quality of life.

Conclusion:

Postcancer pain may contribute to health-related quality of life through multiple mechanisms, including by triggering concerns of recurrence. There is a need for clinical interventions that target both the frequency of pain (eg, behavioral interventions) and pain-related worry (eg, psychoeducation and cognitive interventions) to improve health-related quality of life after childhood cancer.

Interventional Pain Management for the Pediatric Cancer Patient: A Literature Review

This literature review examines the use of interventional treatments for pain management in pediatric cancer patients. While interventional procedures may be effective in cancer pain management, these procedures are infrequently employed in pediatric cohorts. This underutilization of interventional procedures may be supported by a deficit in randomized, controlled studies and literature regarding their role in pediatric cancer populations. Particularly because literature on the efficacy of interventional treatments in adult populations may not directly translate to pediatric populations, more research about the role of interventional procedures in managing pediatric cancer pain is necessary for a strengthened understanding of pediatric cancer pain treatment.

A systematic review and pooled prevalence of symptoms among childhood and adolescent and young adult cancer survivors

AIMS AND OBJECTIVES

To systematically review the existing literature reporting symptoms in childhood and adolescent and young adult cancer survivors and to meta-analyse the pooled prevalence of symptoms.

BACKGROUND

Cancer survivors experience various symptoms caused by cancer treatments and their late effects. These symptoms are associated with adverse health outcomes. However, estimates of symptom prevalence vary largely, and no comprehensive review of symptoms has been conducted for childhood and adolescent and young adult cancer survivors.

DESIGN

A systematic review.

METHODS

This systematic review is registered in PROSPERO registry and was performed following the PRISMA guidelines. PubMed, EMBASE, Cochrane Library, Web of Science, Scopus and CINAHL were searched up to July 2021. Three investigators assessed the eligibility of studies, extracted data and performed quality assessment. The pooled prevalence of symptoms was calculated using a random-effect model. Subgroup analysis was conducted to identify heterogeneity.

RESULTS

Sixty-one studies were used to synthesise symptom prevalence, involving 114,184 participants. There were 24 physical symptoms and 10 psychological symptoms reported in two or more studies. The most studied physical symptoms were fatigue and sleep disturbance, and the most studied psychological symptoms were anxiety and depression. Among physical symptoms, drowsiness had the highest prevalence, followed by dry mouth and fatigue. Among psychological symptoms, worry and nervousness had the highest prevalence, followed by difficulty concentrating.

CONCLUSIONS

Physical and psychological symptoms are common in the target population. This review provides an up-to-date overview of symptom prevalence, identifying areas for future research.

RELEVANCE TO CLINICAL PRACTICE

Education about possible symptoms related to cancer and its treatment should be given while in treatment. Symptoms should also be monitored throughout the survivorship period. Nurses have a critical role in identifying and making referrals for psychological symptoms as well as promoting preventative strategies that enhance well-being.

Intravenous opioids for chemotherapy-induced severe mucositis pain in children: Systematic review and single-center case series of management with patient- or nurse-controlled analgesia (PCA/NCA)

BACKGROUND

Chemotherapy-induced oral mucositis can result in severe pain. Intravenous (IV) opioids are recommended, but management protocols vary. We systematically reviewed studies reporting IV opioid use for pain related to chemotherapy-induced severe oral mucositis in children and conducted a large single-center case series.

METHODS

Ovid MEDLINE, PubMed, and Cochrane databases were searched for studies reporting IV opioid duration and/or dose requirements for severe mucositis. Secondly, our pain service database was interrogated to describe episodes of opioid administration by patient- or nurse-controlled analgesia (PCA/NCA) for children with mucositis and cancer treatment-related pain.

RESULTS

Seventeen studies (six randomized trials, two prospective observational, three retrospective cohort, six retrospective case series) included IV opioid in 618 patients (age 0.3-22.3 years), but reported parameters varied. Mucositis severity and chemotherapy indication influenced IV opioid requirements, with duration ranging from 3 to 68 days and variable dose trajectories (hourly morphine or equivalent 0-97 mcg/kg/h). Our 7-year series included PCA/NCA for 364 episodes of severe mucositis (302 patients; age 0.12-17.2 years). Duration ranged from 1 to 107 days and dose requirements in the first 3 days from 1 to 110 mcg/kg/h morphine. Longer PCA/NCA duration was associated with: higher initial morphine requirements (ρ = 0.46 [95% CI 0.35, 0.57]); subsequent increased pain and need for ketamine co-analgesia (118/364 episodes with opioid/ketamine 13.9 [9.8-22.2] days vs opioid alone 6.0 [3.9-10.8] days; median [IQR]); but not with age or sex.

CONCLUSIONS

Management of severe mucositis pain can require prolonged IV opioid therapy. Individual and treatment-related variability in analgesic requirements highlight the need for regular review, titration, and management by specialist services.

Factors Associated with Interest in Complementary and Alternative Medicine Among Young Adult Survivors of Childhood Cancer

Background: Use of complementary and alternative medicine (CAM) by those undergoing cancer treatment is common. While some childhood cancer survivors (CCS) may use CAM to treat late effects, others may lack information about available alternative therapies. We sought to determine characteristics associated with seeking more information about CAM among an ethnically diverse sample of young adult CCS. Methods: Young adult CCS were selected from the population-based Los Angeles SEER cancer registry and surveyed at ages 18 to 39 as part of the Project Forward Cohort. Associations between demographic, clinical, and other factors with seeking information on CAM were examined with t-tests, Chi Square analyses, and logistic regression. Results: Among 1106 participants surveyed, 182 (18%) reported interest in obtaining more information on CAM. Interest in CAM was highest among males, older (vs. younger) participants, those born outside the U.S., those with a history of relapsed/recurrent or second cancers, those with greater depressive symptoms, and those with poorer self-rated health. Among Hispanic/Latino/Latinx respondents, depressive symptoms, birth outside the U.S., and higher Latino culture orientation was positively associated with CAM interest. Discussion: Depressive symptoms and unresolved health problems are associated with a need for information about alternative forms of therapy, particularly in those with born outside the U.S. Healthcare providers caring for CCS can incorporate appropriate CAM information to help address unmet physical and mental health needs.

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.

Racial and Ethnic Disparities in Health Outcomes Among Long-Term Survivors of Childhood Cancer: A Scoping Review

The five-year survival rate of childhood cancer has increased substantially over the past 50 yr; however, racial/ethnic disparities in health outcomes of survival have not been systematically reviewed. This scoping review summarized health disparities between racial/ethnic minorities (specifically non-Hispanic Black and Hispanic) and non-Hispanic White childhood cancer survivors, and elucidated factors that may explain disparities in health outcomes. We used the terms “race”, “ethnicity”, “childhood cancer”, “pediatric cancer”, and “survivor” to search the title and abstract for the articles published in PubMed and Scopus from inception to February 2021. After removing duplicates, 189 articles were screened, and 23 empirical articles were included in this review study. All study populations were from North America, and the mean distribution of race/ethnicity was 6.9% for non-Hispanic Black and 4.5% for Hispanic. Health outcomes were categorized as healthcare utilization, patient-reported outcomes, chronic health conditions, and survival status. We found robust evidence of racial/ethnic disparities over four domains of health outcomes. However, health disparities were explained by clinical factors (e.g., diagnosis, treatment), demographic (e.g., age, sex), individual-level socioeconomic status (SES; e.g., educational attainment, personal income, health insurance coverage), family-level SES (e.g., family income, parent educational attainment), neighborhood-level SES (e.g., geographic location), and lifestyle health risk (e.g., cardiovascular risk) in some but not all articles. We discuss the importance of collecting comprehensive social determinants of racial/ethnic disparities inclusive of individual-level, family-level, and neighborhood-level SES. We suggest integrating these variables into healthcare systems (e.g., electronic health records), and utilizing information technology and analytics to better understand the disparity gap for racial/ethnic minorities of childhood cancer survivors. Furthermore, we suggest national and local efforts to close the gap through improving health insurance access, education and transportation aid, racial-culture-specific social learning interventions, and diversity informed training.

Characterizing pain in long-term survivors of childhood cancer

Many long-term survivors of childhood cancer (LTSCC), individuals at least 5 years post-diagnosis or 2 years post-treatment, experience late- and long-term effects from their treatments, including pain. Yet, pain is poorly understood among LTSCC. The current study aimed to (1a) describe rates and multiple dimensions of pain; (1b) identify patterns of chronic pain; and (2) test correlates of chronic pain in LTSCC. Survivors (n = 140; 48.6% male, M_age = 17.3 years (range = 8-25)) were recruited from across Canada. Between 2017 and 2019, participants completed the Pain Questionnaire, Pain Catastrophizing Scale, Pediatric Quality of Life Inventory, Patient-Reported Outcome Measurement Information System (PROMIS)-Pain Interference, Anxiety, and Depression scales, Child Posttraumatic Stress Scale, the Posttraumatic Stress Disorder Checklist for the DSM-V, and the Cancer Worry Scale. RESULTS: Twenty-six percent of LTSCC reported experiencing chronic pain. Exploratory cluster analysis showed 20% of survivors had moderate to severe chronic pain based on measures of pain intensity and interference. The combination of higher posttraumatic stress symptoms, older current age, more pain catastrophizing, and sex (being female) significantly predicted the presence of chronic pain in logistic regression, χ² (4, N = 107) = 28.10, p < .001. Higher pain catastrophizing (OR = 1.09; 95% CI = 1.02-1.16), older current age (OR = 1.20; 95% CI = 1.07-1.34), and higher posttraumatic stress (OR = 1.92; 95% CI = 1.01-3.63) were significant predictors of chronic pain. LTSCC should be screened for the presence and magnitude of chronic pain during long-term follow-up visits so appropriate interventions can be offered and implemented. Future research should investigate pain interventions tailored for this population. RELEVANCE: Findings support regular screening for the presence and magnitude of chronic pain in survivors of childhood cancer in long-term follow-up care.

The effectiveness of digital self-management interventions on health outcomes among childhood cancer survivors: A systematic review and meta-analysis

AIMS

The study aimed to review the evidence about existing digital interventions for childhood cancer survivors and examine their effectiveness on health outcomes.

DESIGN

Systematic review and meta-analysis.

DATA SOURCES

PUBMED, EMBASE, Cochrane, CINAHL, Web of Science, PsycArticles, SCOPUS and PQDT Global databases were searched, and the date last searched was 16 September 2019.

REVIEW METHODS

This systematic review followed PRISMA guidelines. Randomized and nonrandomized controlled trials, as well as before-and-after studies, were included. The main outcomes were health-related quality of life and moderate-to-vigorous physical activity. Two authors independently reviewed included studies and assessed methodological quality. Meta-analysis was conducted using statistical software STATA 16.0.

RESULTS

Out of the eight eligible studies, four were included in the meta-analysis. The digital self-management interventions were not effective on health-related quality of life and moderate-to-vigorous physical activity. Additionally, the digital self-management interventions increased the moderate-to-vigorous physical activity over time but was not statistically significant.

CONCLUSIONS

There is insufficient evidence on the effectiveness of digital self-management interventions in improving health outcomes among childhood cancer survivors. Future randomized controlled trials should be conducted from multiple locations and should include objective measures and means to encourage interaction with health care providers.

IMPACT

Digital interventions are increasingly implemented to improve health outcomes among childhood cancer survivors, but their results are inconsistent. Well-designed digital interventions may be beneficial for this population over time. The recommendations proposed in the current review may be useful for developing digital interventions and designing related studies in the future, thereby reducing late effects and improving healthy behaviours among this population.

Pain and functional outcomes in adult survivors of childhood cancer: A report from the St. Jude Lifetime Cohort study

BACKGROUND

Although survivors of childhood cancer are at risk of chronic pain, the impact of pain on daily functioning is not well understood.

METHODS

A total of 2836 survivors (mean age, 32.2 years [SD, 8.5 years]; mean time since diagnosis, 23.7 years [SD, 8.2 years]) and 343 noncancer community controls (mean age, 35.5 years [SD, 10.2 years]) underwent comprehensive medical, neurocognitive, and physical performance assessments, and completed measures of pain, health-related quality of life (HRQOL), and social functioning. Multinomial logistic regression models, using odds ratios and 95% confidence intervals (95% CIs), examined associations between diagnosis, treatment exposures, chronic health conditions, and pain. Relative risks (RRs) between pain and neurocognition, physical performance, social functioning, and HRQOL were examined using modified Poisson regression.

RESULTS

Approximately 18% of survivors (95% CI, 16.1%-18.9%) versus 8% of controls (95% CI, 5.0%-10.9%) reported moderate to very severe pain with moderate to extreme daily interference (P < .001). Severe and life-threatening chronic health conditions were associated with an increased likelihood of pain with interference (odds ratio, 2.03; 95% CI, 1.62-2.54). Pain with daily interference was found to be associated with an increased risk of impaired neurocognition (attention: RR, 1.88 [95% CI, 1.46-2.41]; and memory: RR, 1.65 [95% CI, 1.25-2.17]), physical functioning (aerobic capacity: RR, 2.29 [95% CI, 1.84-2.84]; and mobility: RR, 1.71 [95% CI, 1.42-2.06]), social functioning (inability to hold a job and/or attend school: RR, 4.46 [95% CI, 3.45-5.76]; and assistance with routine and/or personal care needs: RR, 5.64 [95% CI, 3.92-8.10]), and HRQOL (physical: RR, 6.34 [95% CI, 5.04-7.98]; and emotional: RR, 2.83 [95% CI, 2.28-3.50]).

CONCLUSIONS

Survivors of childhood cancer are at risk of pain and associated functional impairments. Survivors should be screened routinely for pain and interventions targeting pain interference are needed.

Pain in survivors of Ewing sarcoma: Prevalence, associated factors and prediction of recurrence

BACKGROUND

While the prognosis of patients with Ewing sarcoma (EwS) is improving, little is known about the frequency of pain and its risk factors in survivors of EwS. This study aims to analyse the prevalence and risk factors of pain and its predictive value for recurrence.

PATIENTS AND METHODS

In patients with remission after treatment of EwS, frequency and characteristics of pain within the first 5 years of follow up were assessed retrospectively.

RESULTS

Of 80 patients, 37 (46%) presented with at least one episode of pain. Chronic pain (>3 months) was observed in 10 patients (13%). Experience of at least one episode of pain was associated with prior combined local treatment (surgery and radiation compared to surgery alone; odds ratio [OR] 5.83, 95% confidence interval [CI] 1.43-34.9, P = .007). A total of 59 episodes of pain were observed, including 47 acute and 12 chronic episodes. Lower limb pain accounted for 46% (27/59) of all episodes of pain, and was associated with primary tumour of the pelvis or lower extremity (OR 4.29, 95% CI 1.18-18.21, P = .025), which represented 64% (51/80) of all EwS. The positive predictive value of pain for recurrence was only 12%.

CONCLUSION

Pain is a common problem in survivors of EwS, which mostly affects the lower extremity, and should be regularly assessed. Interventions to reduce pain may be particularly important in patients with combined local treatment with surgery and radiation, who seem to be at considerably increased risk for pain. Patients presenting with pain should be examined for recurrence.

Pain Management in Childhood Leukemia: Diagnosis and Available Analgesic Treatments

Pain is one of the most common symptoms in children suffering from leukemia, who are often misdiagnosed with other childhood painful diseases such as juvenile idiopathic arthritis. Corticosteroid-induced osteonecrosis (ON) and vincristine-induced peripheral neuropathy (VIPN) are the most common painful manifestations. Additionally, ongoing pain may continue to impact quality of life in survivorship. This narrative review focuses on the pathophysiological mechanisms of pain in childhood leukemia and current available indications for analgesic treatments. Pain management in children is often inadequate because of difficulties in pain assessment, different indications across countries, and the lack of specific pediatric trials. Analgesic drugs are often prescribed off-label to children by extrapolating information from adult guidelines, with possible increased risk of adverse events. Optimal pain management should involve a multidisciplinary team to ensure assessment and interventions tailored to the individual patient.

The Intergenerational Transmission of Chronic Pain from Parents to Survivors of Childhood Cancer

BACKGROUND

Among youth with chronic non-cancer pain, 50% have parents with chronic pain. These youth report significantly more pain interference and posttraumatic stress symptoms (PTSS), and worse health-related quality of life (HRQL) than youth whose parents do not have chronic pain. Additionally, parent chronic pain is linked to increased child anxiety and depressive symptoms. Survivors of childhood cancer (SCCs) are at risk of pain and negative psychosocial outcomes and therefore may be especially vulnerable if their parents have chronic pain. Thus, the aims of the current study were to (1) identify rates of chronic pain among parents of SCCs, (2) test group differences in psychological symptoms in parents with chronic pain versus without, and (3) test group differences in pain interference, HRQL, anxiety, depression, and PTSS in SCCs with parents with chronic pain versus without.

METHODS

122 SCCs (Mean age = 15.8, SD = 4.8, 45.7% male, Mean age at diagnosis = 5.9, SD = 4.7) and their parents were recruited from across Canada to complete online questionnaires. Parents were asked if they have had pain for at least three consecutive months and completed the brief symptom inventory (BSI) as a measure of psychological symptomatology. Survivors completed the pain questionnaire, patient reported outcomes measurement information system (PROMIS)-pain interference, anxiety, and depression measures, child posttraumatic stress scale, posttraumatic stress disorder checklist for the Diagnostic and Statistical Manual of Mental Disorders, and the pediatric quality of life inventory.

RESULTS

Forty-three (39%) parents of SCCs reported having chronic pain. Of the 29 survivors who had chronic pain, 14 (48%) also had parents with chronic pain. Parents with chronic pain reported significantly higher scores on the BSI than parents without chronic pain, F(1, 116) = 5.07, p = 0.026. SCCs with parents with versus without chronic pain reported significantly higher PTSS F(1, 105) = 10.53, p = 0.002 and depressive symptoms F(1, 102) = 6.68, p = 0.011. No significant differences were found across the other variables tested.

CONCLUSIONS

Findings suggest that survivors' parents' own pain is prevalent and is related to survivors' increased depressive symptoms and PTSS, but not anxiety, pain interference, or HRQL. Future research should explore whether parents may benefit from psychological intervention after their child has been diagnosed with cancer and how this could improve outcomes for their child.

Pain Among Cancer Survivors

Introduction

Pain is one of the most common symptoms that people with cancer experience. Identification of demographic, physiologic, and behavioral correlates of pain among cancer survivors could help identify subgroups most in need of pain management.

Methods

We analyzed data from the 2012, 2014, and 2016 Behavioral Risk Factor Surveillance System Cancer Survivorship Optional Module, which was completed by 18 states and territories, to describe demographic and physiologic characteristics of cancer survivors reporting physical pain caused by cancer or cancer treatment. Adjusted and unadjusted population-based estimates and 95% confidence intervals were calculated.

Results

Of 12,019 cancer survivor respondents, 9.5% reported current pain related to cancer or cancer treatment. Current pain differed significantly by sex, race/ethnicity, age, and cancer type. Current pain was reported most often among survivors with more than 3 chronic diseases (16.7%) compared with survivors with none (8.1%) or 1 or 2 (10.0%). Pain was higher among survivors reporting fair or poor general health (18.0%) than among survivors reporting otherwise, and higher among survivors reporting more than 14 days of poor physical health (16.6%) or poor mental health (14.8%) compared with less than 14 days (in the past 30 days).

Conclusions

Our results suggest that approximately 10% of cancer survivors in the United States are experiencing pain that may have persisted for years after their initial diagnosis and may not be adequately controlled. Increasing knowledge of the most appropriate pain management planning and strategies for controlling short- and long-term chronic pain among cancer survivors could help reduce the prevalence of pain.

Patient-reported outcomes in paediatric cancer survivorship: a qualitative study to elicit the content from cancer survivors and caregivers

OBJECTIVES

Content elucidation for patient-reported outcomes (PROs) in paediatric cancer survivorship is understudied. We aimed to compare differences in the contents of five PRO domains that are important to paediatric cancer survivorship through semistructured interviews with paediatric cancer survivors and caregivers, and identified new concepts that were not covered in the item banks of the Patient-Reported Outcomes Measurement Information System (PROMIS).

DESIGN

Semistructured interviews to collect qualitative PRO data from survivors and caregivers.

SETTING

A survivorship care clinic of a comprehensive cancer centre in the USA.

PARTICIPANTS

The study included 51 survivors (<18 years old) and 35 caregivers who completed interviews between August and December 2016. Content experts coded the transcribed interviews into 'meaningful concepts' per PROMIS item concepts and identified new concepts per a consensus. Frequencies of meaningful concepts used by survivors and caregivers were compared by Wilcoxon rank-sum test.

RESULTS

For pain and meaning and purpose, 'Hurt a lot' and 'Purpose in life' were top concepts for survivors and caregivers, respectively. For fatigue and psychological stress, 'Needed to sleep during the day'/'Trouble doing schoolwork' and 'Felt worried' were top concepts for survivors, and 'Felt tired' and 'Felt distress'/'Felt stressed' for caregivers. Survivors reported more physically relevant contents (eg, 'Hard to do sport/exercise'; 0.78 vs 0.23, p=0.007) for pain, fatigue and stress, whereas caregivers used more emotionally relevant concepts (eg, 'Too tired to enjoy things I like to do'; 0.31 vs 0.05, p=0.025). Both groups reported positive thoughts for meaning and purpose (eg, 'Have goals for myself'). One (psychological stress, meaning and purpose) to eleven (fatigue) new concepts were generated.

CONCLUSIONS

Important PRO contents in the form of meaningful concepts raised by survivors and caregivers were different and new concepts emerged. PRO measures are warranted to include survivorship-specific items by accounting for the child's and the caregiver's viewpoints.

Managing childhood cancer pain into survivorship: recognition and emerging principles

PURPOSE OF REVIEW

Continual refinement and further stratification of childhood cancer treatment has led to increased survivorship with recognized improvements in many long-term health outcomes. Despite this progress, persisting pain prevalence in childhood cancer survivors is increasing and emerging as a significant long-term health concern.

RECENT FINDINGS

Currently, there is no guidance on how to approach and manage persisting pain in survivors of childhood cancer.

SUMMARY

Clinicians should work with children and young people to optimize the management of pain and other symptoms on treatment. Focusing on an early post treatment screening for pain and other symptoms (including sleep and fatigue), and the role of on-going analgesic use. Follow-up should offer a multidisciplinary approach, aimed at lessening reliance on pharmacological approaches to pain management, addressing psychological concerns and promoting increased physical activity. The onus is on clinicians to mitigate the long-term risk of pharmacological reliance, particularly opioid dependency, in patients leaving their care and heading into adulthood. In this article, we highlight the emerging evidence of persisting pain in survivors of childhood cancer as a significant long-term health outcome and consider some initial principles of management.

Fear of cancer recurrence among survivors of childhood cancer

OBJECTIVES

Fear of cancer recurrence (FCR) has not been widely explored in survivors of childhood cancer. Yet, childhood survivors are at risk of experiencing late effects and may be especially vulnerable. The aims of the current study were to conduct a retrospective chart review to determine the prevalence and persistence of FCR among survivors of childhood cancer and to examine factors that may be related to FCR.

METHODS

Survivors of childhood cancer (n = 228, mean attained age = 14.5 years [range = 4.7-21 years]; mean diagnosis age = 4.4 years [range = 0-16.5 years]; mean time off treatment = 8.7 years [range = 2.8-19.3 years]) seen in a Long-Term Survivor Clinic (LTSC) completed questionnaires at each clinic visit detailing their current health. FCR was measured with a single item. Data from questionnaires from 2011 to 2018 were analyzed retrospectively. Descriptive statistics and a random effects model were used to address study aims.

RESULTS

FCR was reported in 43% (n = 98) of survivors at least once across all clinic visits. Among survivors reporting FCR at least once, 66% were diagnosed with cancer under the age of 5, and 64% were 13 years or older at their most recent follow-up. Twenty-one percent of survivors (n = 48/224) reported FCR during at least 50% of their visits. Survivors with a higher number of depressive symptoms were more likely to report FCR (OR = 1.66, P = .03).

CONCLUSIONS

FCR is prevalent among survivors of childhood cancer and is related to other health concerns. Research is needed to understand who is at risk and how to.

Longitudinal pain and pain interference in long-term survivors of childhood cancer: A report from the Childhood Cancer Survivor Study

BACKGROUND

The objective of this study was to characterize the prevalence and risk of pain, pain interference, and recurrent pain in adult survivors of childhood cancer in comparison with siblings.

METHODS

This study analyzed longitudinal data from survivors (n = 10,012; 48.7% female; median age, 31 years [range, 17-57 years]; median time since diagnosis, 23 years) and siblings (n = 3173) from the Childhood Cancer Survivor Study. Survivors were diagnosed between 1970 and 1986 at 1 of 26 participating sites. Associations between risk factors (demographics, cancer-related factors, and psychological symptoms) and pain, pain interference, and recurrent pain (5 years apart) were assessed with multinomial logistic regression. Path analyses examined cross-sectional associations between risk factors and pain outcomes.

RESULTS

Twenty-nine percent of survivors reported moderate to severe pain, 20% reported moderate to extreme pain interference, and 9% reported moderate to severe recurrent pain. Female sex, a sarcoma/bone tumor diagnosis, and severe/life-threatening chronic medical conditions were associated with recurrent pain. Depression and anxiety were associated with increased risk for all pain outcomes. Poor vitality mediated the effects of anxiety on high pain and pain interference (root mean square error of approximation, 0.002).

CONCLUSIONS

A large proportion of adult survivors report moderate to severe pain and pain interference more than 20 years after their diagnosis. Increased screening and early intervention for pain interference and recurrent pain are warranted.

Pain in long-term survivors of childhood cancer: A systematic review of the current state of knowledge and a call to action from the Children's Oncology Group

Survivors of childhood cancer may be at risk of experiencing pain, and a systematic review would advance our understanding of pain in this population. The objective of this study was to describe: 1) the prevalence of pain in survivors of childhood cancer, 2) methods of pain measurement, 3) associations between pain and biopsychosocial factors, and 4) recommendations for future research. Data sources for the study were articles published from January 1990 to August 2019 identified in the PubMed, PsycINFO, EMBASE, and Web of Science data bases. Eligible studies included: 1) original research, 2) quantitative assessments of pain, 3) articles published in English, 4) cancers diagnosed between birth and age 21 years, 5) survivors at 5 years from diagnosis and/or at 2 years after therapy completion, and 6) a sample size >20. Seventy-three articles were included in the final review. Risk of bias was considered using the Cochrane risk of bias tool. The quality of evidence was evaluated according to Grading of Recommendations Assessment Development and Evaluation (GRADE) criteria. Common measures of pain were items created by the authors for the purpose of the study (45.2%) or health-related quality-of-life/health status questionnaires (42.5%). Pain was present in from 4.3% to 75% of survivors across studies. Three studies investigated chronic pain according the definition in the International Classification of Diseases. The findings indicated that survivors of childhood cancer are at higher risk of experiencing pain compared with controls. Fatigue was consistently associated with pain, females reported more pain than males, and other factors related to pain will require stronger evidence. Theoretically grounded, multidimensional measurements of pain are absent from the literature.

Pain in older survivors of hematologic malignancies after blood or marrow transplantation: A BMTSS report

BACKGROUND

Blood or marrow transplantation (BMT) is increasingly offered to older adults with hematologic malignancies; however, their risk for severe pain is poorly understood. Using the Bone Marrow Transplant Survivor Study, the current study investigated the prevalence and predictors of pain after BMT (allogeneic or autologous) as well as its association with physical performance impairments and frailty.

METHODS

The cohort included 736 patients with hematologic malignancies who underwent BMT at an age ≥ 60 years at 1 of 3 transplant centers between 1974 and 2014 and survived ≥2 years after BMT; 183 unaffected siblings also participated. Study participants reported on 4 pain domains (nonminor everyday pain, moderate to severe bodily pain, prolonged pain, and moderate to extreme pain interference), and the presence of 1 or more domains was indicative of a severe and/or life-interfering pain composite variable.

RESULTS

Overall, 39.4% of the BMT survivors reported severe pain with 2.6-fold greater odds of reporting pain in comparison with sibling controls. Among BMT recipients, those with less education, lower incomes, and active chronic graft-versus-host disease had higher odds of reporting pain. In multivariable analyses, BMT survivors with pain were more likely to have impaired physical performance and were more likely to meet the frailty criteria. BMT survivors reported higher use of pain medications (17.8% vs 9.3%) and opioid pain medications (6.5% vs 2.2%) in comparison with sibling controls.

CONCLUSIONS

Nearly 40% of older BMT survivors who were followed for a median of 5 years after BMT reported pain, and BMT survivors had 2.6-fold higher odds of reporting severe, nonminor or life-interfering pain in comparison with siblings.

A systematic review of self-reported pain in childhood cancer survivors

AIM

The aim of this systematic review was to examine the frequency and risk factors of pain among long-term childhood cancer survivors based on self-reported questionnaire studies. Participants aged 21 years or younger at the time of their cancer diagnosis were included.

METHODS

The Medline (OVID), PubMed and PsycINFO databases were searched for manuscripts published between January 1, 1990, and August 31, 2018, following the PRISMA statement for reporting systematic reviews.

RESULTS

In total, 25 studies, including five prospective cohort studies measuring pain up to 32 years post-diagnosis, were identified. Female sex, young age at diagnosis, older age at assessment, greater time since diagnosis, specific diagnoses (such as central nervous system [CNS] tumours, bone tumours and sarcoma), fatigue and persistent emotional distress were associated with cancer-related pain. The most common pain types were migraines, headaches and back pain.

CONCLUSION

A subset of childhood cancer survivors reported clinically significant self-reported pain. Identifying survivor subgroups at risk for pain could be essential for developing tailored intervention and prevention strategies. Prospective studies that use standardised and psychometrically sound tools to evaluate pain are needed.

Association between polypharmacy and health-related quality of life among cancer survivors in the United States

PURPOSE

Polypharmacy (PP) is present in many cancer survivors and may lead to lower health-related quality of life (HRQoL). The study's objective was to evaluate the association between PP and HRQoL among cancer survivors in the US.

METHODS

A cross-sectional analysis of the Medical Expenditure Panel Survey (MEPS) was conducted. Our analytic sample included all adult patients with cancer, during even years 2008-2014. PP was defined as reported use of five or more unique therapeutic classes of prescription medications. The MEPS measured HRQoL using the Short Form 12-Item Health Survey Version 2 (SF-12v2) physical component summary (PCS) and mental component summary (MCS) scores. Ordinary least squares regressions were used to assess associations between PP and HRQoL controlling for demographic, socioeconomic, and clinical factors.

RESULTS

PP was prevalent among 44.4% of 10.1 million cancer survivors per calendar year (on average) for years 2008, 2010, 2012, and 2014. The mean adjusted PCS score for cancer survivors with PP was 35.8 points, which was significantly lower compared with cancer survivors without PP (39.5) by 3.7 points (p value < .0001). Conversely, the mean adjusted MCS scores were not significantly lower in cancer survivors with PP compared with cancer survivors without PP (44.9 versus 45.4, p value = 0.3145).

CONCLUSIONS

PP was prevalent in 44.4% of cancer survivors and was associated with significantly poorer physical HRQoL than reported in their counterparts without PP.

IMPLICATIONS FOR CANCER SURVIVORS

PP should be examined closely among cancer survivors because of increased association with poorer physical HRQoL.

Perceived cancer-related pain and fatigue, information needs, and fear of cancer recurrence among adult survivors of childhood cancer

OBJECTIVE

Pain and fatigue are under-researched late effects of childhood cancer and its treatment, and may be interpreted by survivors as indicating cancer recurrence. Moreover, unmet information needs for managing pain and fatigue may be related to fear of cancer recurrence. We investigated the complex relationships between perceived cancer-related pain and fatigue, unmet information needs for managing pain and fatigue, and fear of cancer recurrence.

METHODS

We surveyed 404 adult survivors of any form of childhood cancer (M = 16.82 years since treatment completion).

RESULTS

Many survivors reported perceived cancer-related pain (28.7%) and fatigue (40.3%), and anticipated future pain (19.3%) and fatigue (26.2%). These symptomologies were all related to unmet information needs for managing pain (18.8%) and fatigue (32.2%; all p's<.001). Survivors reporting unmet information needs for managing pain (B = .48, 95% CI = 0.19-0.76, p = .001) and fatigue (B = .32, 95% CI = 0.06-0.52, p = .015) reported higher fear of cancer recurrence than survivors reporting no information needs.

CONCLUSION

Survivors often have unmet information needs for managing pain and fatigue, and these unmet needs are related to fear of cancer recurrence.

PRACTICE IMPLICATIONS

Long-term follow-up clinics should assess pain and fatigue. Information provision about pain and fatigue may be an important tool to help manage fear of cancer recurrence.

Topical Review: Pain in Survivors of Pediatric Cancer: Applying a Prevention Framework

Objective

To apply a biopsychosocial framework to understand factors influencing pain in survivors of pediatric cancer to inform pain prevention efforts and highlight the need for interdisciplinary care.

Method

This topical review draws from both pediatric cancer survivorship research and chronic noncancer pain research to illustrate how components of a preventative model can be applied to pain in survivorship.

Results

Pain is a common experience among long-term survivors of pediatric cancer. The pain experience in survivorship can be conceptualized in terms of biological disease and treatment factors, cognitive and affective factors, and social and contextual factors. We review literature pertinent to each of these biopsychosocial factors and tailor an existing public health prevention framework for pain in survivors of pediatric cancer.

Conclusions

Classifying survivors of pediatric cancer into pain risk categories based on their daily experiences of pain, pain-related functional impairment, and distress could help guide the implementation of pain-related prevention and intervention strategies in this population. Future research is needed to establish the efficacy of screening measures to identify patients in need of psychosocial pain and pain-related fear management services, and interdisciplinary pediatric chronic pain management programs in survivors of pediatric cancer.

Adaptations to a Generalized Radiation Dose Reconstruction Methodology for Use in Epidemiologic Studies: An Update from the MD Anderson Late Effect Group

Epidemiologic studies that include patients who underwent radiation therapy for the treatment of cancer aim to quantify the relationship between radiotherapy and the risk of subsequent late effects. Because of the long follow-up period required to observe late effects, these studies are conducted retrospectively. The studies routinely include patients treated across numerous institutions using a wide range of technologies and represent treatments over several decades. As a result, determining the dose throughout the patient's body is uniquely challenging. Therefore, estimating doses throughout the patient's body for epidemiologic studies requires special methodologies that are generally applied to a wide range of radiotherapy techniques. Over ten years ago, the MD Anderson Late Effects Group described various dose reconstruction methods for therapeutic and diagnostic radiation exposure for epidemiologic studies. Here we provide an update to the most widely used dose reconstruction methodology for epidemiologic studies, analytical model calculations combined with a 3D age-specific computational phantom. In particular, we describe the various adaptations (and enhancements) of that methodology, as well as how they have been used in radiation epidemiology studies and may be used in future studies.

When "a headache is not just a headache": A qualitative examination of parent and child experiences of pain after childhood cancer

OBJECTIVE

Today, more than 80% of children diagnosed with cancer are expected to survive. Despite the high prevalence of pain associated with the diagnosis and treatment of childhood cancer, there is a limited understanding of how having cancer shapes children's experience and meaning of pain after treatment has ended. This study addresses this gap by exploring childhood cancer survivors' (CCS') experiences of pain from their perspective and the perspective of their parents.

METHODS

Twenty semi-structured interviews were completed with CCS (50% female; mean age = 13.20 y, range = 8-17 y) and their parents (90% mothers). Data were analyzed using interpretive phenomenological analysis.

RESULTS

Analyses revealed three superordinate themes present in the data: (a) pain is a changed experience after childhood cancer; (b) new or ambiguous pains may be interpreted by CCS and parents as a threat of disease recurrence, late effects, or a secondary cancer; and (c) pain interpretation occurs within the broader context of how CCS and parents appraise their cancer experience. Parents generally appraised their child's cancer and pain as more threatening and were influential in guiding their child's interpretations.

CONCLUSIONS

The cancer experience played an important role in shaping CCS' and their parents' experience and interpretation of pain in survivorship. This study provides novel data to inform the development and refinement of new and existing conceptual models of pain and symptom perception after cancer. The results also point to key areas for future investigation and clinical intervention to address the issue of pain in cancer survivorship.

The role of primary care in supporting patients living with and beyond cancer

PURPOSE OF REVIEW

The prevalence of cancer survivors is increasing. Those living with and beyond a cancer diagnosis have a range of physical, psychosocial and practical needs. This review aims to discuss the role of primary care in meeting these needs.

RECENT FINDINGS

Patients have increased contact with primary care after a cancer diagnosis but the role of the primary care team in the formal delivery of cancer aftercare is not clearly defined and varies depending on setting and context. Research suggests that both patients and health professionals are receptive to greater involvement of primary care, with informational and personal continuity of care, and good co-ordination of care being particularly valued by patients. Recent evidence indicates that shared care between oncologists and primary care physicians can be as effective as and more cost effective than secondary care-led follow-up, and that primary-care nurses could play a role in optimizing survivorship care.

SUMMARY

The four pillars of primary care - contact, comprehensiveness, continuity and coordination - are recurring themes in the cancer survivorship literature and emphasize that the traditional core values of general practice lend themselves to innovative interventions to improve the efficiency and efficacy of survivorship care.

Pain Education for Adolescents and Young Adults Living Beyond Cancer: An Interdisciplinary Meeting Report

Pain is an understudied and undertreated consequence of cancer survival. Pain education is now a recommended treatment approach for persistent non-cancer pain, yet it has not been well applied to the context of adolescent and young adult (AYA) cancer survival. In March 2018, an interdisciplinary meeting was held in Adelaide, South Australia to set a research agenda for pain education in AYA cancer survivors. We identified that AYAs with persistent pain and those with heightened pain-related fear have the potential to benefit from pain education. We identified a number of unique challenges of engaging AYA survivors in pain education, and point towards future research directions.

Psychological risk in long-term survivors of childhood acute lymphoblastic leukemia and its association with functional health status: A PETALE cohort study

BACKGROUND

Recent research has suggested that long-term pediatric cancer survivors were at risk of important physical and psychological morbidities. To date, we do not know to what extent functional health status contributes to psychological risk and which domains are most important. The aim of this study was to systematically explore which functional domain could explain anxiety, depression, and distress symptoms.

PROCEDURE

We used data available for 105 adolescents and 182 adults successfully treated for childhood acute lymphoblastic leukemia at two Canadian sites part of the PETALE cohort. Participants were ≥5 years postdiagnosis, aged 22 ± 6 years, 52% female, and 49% acute lymphoblastic leukemia high-risk status. The contribution of health functional status (15D/16D questionnaires) to self-reported anxiety, depression, and distress (Beck scales and distress thermometer) was evaluated using adjusted logistic regression models.

RESULTS

Prevalence rates found for mild-severe anxiety, depression, and distress were 14%, 21%, and 30% among adolescents and 27%, 20%, and 19% among adults. Frequent health domains associated with psychological risk were sleeping and breathing in adolescents, and vitality/fatigue, discomfort/symptoms, mental function, and sleeping in adults. Mental function was systematically associated with psychological risk across age groups (median OR = 10.00, 95% CI 3.01-33.71). Exploratory mediation bootstrapping analyses suggested that the effect on psychological risk of overall health status and mental function problems was partly explained by social/work/school functioning.

CONCLUSION

The results identified important functional health domains that could be targeted for interventions preventing psychological risk: vitality/fatigue, discomfort/symptoms, sleeping, and mental function issues. Health domains probably affect mood partly by limiting social/work/school functioning.

Cancer Chemotherapy in Early Life Significantly Alters the Maturation of Pain Processing

Advances in pediatric cancer treatment have led to a ten year survival rate greater than 75%. Platinum-based chemotherapies (e.g. cisplatin) induce peripheral sensory neuropathy in adult and pediatric cancer patients. The period from birth through to adulthood represents a period of maturation within nociceptive systems. Here we investigated how cisplatin impacts upon postnatal maturation of nociceptive systems. Neonatal Wistar rats (Postnatal day (P) 7) were injected (i.p.) daily with either vehicle (PBS) or cisplatin (1mg/kg) for five consecutive days. Neither group developed mechanical or thermal hypersensitivity immediately during or after treatment. At P22 the cisplatin group developed mechanical (P < 0.05) and thermal (P < 0.0001) hypersensitivity versus vehicle group. Total DRG or dorsal horn neuronal number did not differ at P45, however there was an increase in intraepidermal nerve fiber density in cisplatin-treated animals at this age. The percentage of IB4+ve, CGRP+ve and NF200+ve DRG neurons was not different between groups at P45. There was an increase in TrkA+ve DRG neurons in the cisplatin group at P45, in addition to increased TrkA, NF200 and vGLUT2 immunoreactivity in the lumbar dorsal horn versus controls. These data highlight the impact pediatric cancer chemotherapy has upon the maturation of pain pathways and later life pain experience.