High Prevalence of Chronic Fatigue in Adult Long-Term Survivors of Acute Lymphoblastic Leukemia and Lymphoma During Childhood and Adolescence

Charting Health Challenges for Digital Preventive Interventions Among Adult Survivors of Childhood Acute Lymphoblastic Leukemia: National Long-Term Follow-Up Survey of Self-Rated Health Outcomes

BACKGROUND

Acute lymphoblastic leukemia (ALL) is the most common malignancy in childhood, but the prognosis has remarkably improved over the last 50 years in high-income countries, and thus, there is a focus on long-term health outcomes following survival and how to best provide health care support to adult long-term survivors of childhood ALL to prevent and handle potential health problems. Digital health interventions are promising to deliver feasible health promotion and prevention programs. This is particularly relevant for ensuring long-term follow-up in cases where continuous contact with oncology care may be disrupted. Moreover, these interventions are beneficial in reaching geographically dispersed target groups and overcoming the time constraints of everyday life that often hinder participation in such programs.

OBJECTIVE

This study aimed to fill the gaps in existing research on adult long-term survivors of childhood ALL and provide formative data that can inform the development of formalized follow-up services designed to meet the needs of these survivors in ways that align with their preferences for digital health interventions.

METHODS

In this cross-sectional national study, adult survivors (aged ≥18 years) of childhood ALL for over 10 years after diagnosis were compared to their siblings in terms of mental and physical health-related factors, including sleep, stress, anxiety, and depression (Depression Anxiety and Stress Scale 21 [DASS-21]); several dimensions of fatigue (Multidimensional Fatigue Inventory 20 [MFI-20]); work ability (Work Ability Index); chronic pain; and prevalences of diabetes, cardiovascular disease, headache or migraine, and rheumatic disease.

RESULTS

Overall, 426 of 855 eligible ALL survivors responded (mean age 30.9, SD 7.7 years), and they participated at an average of 24 (SD 6.9) years after ALL diagnosis. Siblings (n=135; mean age 31.5, SD 7.7 years) acted as controls. Sleep quality, sleep quantity, and mean work ability scores were significantly lower, and physical fatigue, reduced motivation, and reduced activity scores were higher in ALL survivors than in siblings. There were no significant differences between the groups in terms of BMI and prevalence of chronic pain, depression, anxiety, or stress. Physical and psychological complications were more frequent among adult ALL survivors who had received hematopoietic stem cell transplantation (HSCT) than among those who had not received HSCT.

CONCLUSIONS

Our nationwide cross-sectional study addressed the scarcity of knowledge regarding the self-reported health outcomes of adult long-term survivors of childhood ALL. We highlighted significant disparities within this population and emphasized the potential of comprehensive digital interventions that target vitality, sleep quality, fatigue, and psychosocial well-being to enhance well-being and bolster the capacity for managing chronic health conditions in this target group. Such an intervention would align with the needs of this target group, which is a prerequisite for successfully incorporating technology into the daily lives of survivors of childhood ALL.

Neurocognitive outcome and associated factors in long-term, adult survivors of childhood acute lymphoblastic leukemia, treated without cranial radiation therapy

OBJECTIVE

There is limited research on neurocognitive outcome and associated risk factors in long-term, adult survivors of childhood acute lymphoblastic leukemia (ALL), without treatment of cranial radiation therapy. Moreover, the impact of fatigue severity and pain interference on neurocognition has received little attention. In this cross-sectional study, we examined neurocognitive outcome and associated factors in this population.

METHOD

Intellectual abilities, verbal learning/memory, processing speed, attention, and executive functions were compared to normative means/medians with one sample t tests or Wilcoxon signed-rank tests. Associations with risk factors, fatigue severity, and pain interference were analyzed with linear regressions.

RESULTS

Long-term, adult survivors of childhood ALL (N = 53, 51% females, mean age = 24.4 years, SD = 4.4, mean = 14.7 years post-diagnosis, SD = 3.4) demonstrated above average intellectual abilities, but performed below average in attention, inhibition, processing speed, and shifting (p < 0.001). Executive functioning complaints were significantly higher than normative means, and positively associated with fatigue (p < 0.001). There was no interaction between sex and fatigue and no neurocognitive impairments were associated with pain interference, risk group, age at diagnosis, or sex.

CONCLUSIONS

Long-term, adult survivors of ALL treated without cranial radiation therapy, demonstrate domain-specific performance-based neurocognitive impairments. However, continued research on the neurocognitive outcome in this population as they age will be important in the coming years. Executive functioning complaints were frequently in the clinical range, and often accompanied by fatigue. This suggests a need for cognitive rehabilitation programs.

Fatigue in children who have recently completed treatment for acute lymphoblastic leukemia: a longitudinal study

BACKGROUND

This study examined fatigue in patients treated for childhood acute lymphoblastic leukemia (ALL) over a 2-year period (3- to 27-months post-treatment completion), from the perspective of children and parent caregivers, compared to a healthy comparison group.

METHODS

Eighty-three patients (4-16 years at enrolment) and their parents, reported on the child's fatigue using the Pediatric Quality of Life Inventory- Multidimensional Fatigue Scale (PedsQL-MFS), at 3- 15- and 27-months post-treatment completion, and 53 healthy children and their parents reported on fatigue across the same timepoints.

RESULTS

Parent proxy-reporting showed that parents of ALL patients reported more total fatigue than parents of the comparison group at all time points, with all subscales elevated (general, cognitive, and sleep/rest fatigue). In contrast, patient self-report of fatigue over this period differed from the comparison children for the general fatigue subscale only. Self-reported total fatigue was worse than the comparison group at the 27-month timepoint, with cognitive and sleep/rest fatigue symptoms contributing to this difference. Expected improvements in fatigue over time were not evident in either patient or parent report and no demographic risk factors were identified. Parents and children from both groups reported significantly more fatigue at all time points compared to commonly utilised normative population data.

CONCLUSIONS

Patients treated for childhood ALL are impacted by fatigue symptoms in the post-treatment and early survivorship period. These findings highlight that patients in the 2-years following treatment require increased symptom surveillance and may benefit particularly from interventions that target cognitive and sleep/rest fatigue.

Prevalence and factors associated with cancer-related fatigue in Swiss adult survivors of childhood cancer

PURPOSE

Reported prevalence of cancer-related fatigue (CRF) among childhood cancer survivors (CCS) varies widely, and evidence on factors associated with CRF among CCS is limited. We aimed to investigate the prevalence of CRF and its associated factors among adult CCS in Switzerland.

METHODS

In a prospective cohort study, we invited adult CCS who survived at least 5 years since last cancer diagnosis, and were diagnosed when age 0-20 years and treated at Inselspital Bern between 1976 and 2015 to complete two fatigue-measuring instruments: the Checklist Individual Strength subjective fatigue subscale (CIS8R; increased fatigue 27-34, severe fatigue ≥ 35) and the numerical rating scale (NRS; moderate fatigue 4-6, severe fatigue 7-10). We collected information about previous cancer treatment and medical history, and calculated β coefficients for the association between CIS8R/NRS fatigue scores and potential determinants using multivariable linear regression.

RESULTS

We included 158 CCS (participation rate: 30%) with a median age at study of 33 years (interquartile range 26-38). Based on CIS8R, 19% (N = 30) of CCS reported increased fatigue, yet none reported severe fatigue. CRF was associated with female sex, central nervous system (CNS) tumors, sleep disturbance, and endocrine disorders. Lower CRF levels were observed among CCS age 30-39 years compared to those younger.

CONCLUSIONS

A considerable proportion of adult CCS reported increased levels of CRF.

IMPLICATIONS FOR CANCER SURVIVORS

CCS who are female and < 30 years old, have a history of CNS tumor, report sleep disturbance, or have an endocrine disorder should be screened for CRF.

Chronic fatigue in childhood cancer survivors is associated with lifestyle and psychosocial factors; a DCCSS LATER study

BACKGROUND

The purpose of this study was to determine factors associated with chronic fatigue (CF) in childhood cancer survivors (CCS).

PATIENTS AND METHODS

Participants were included from the Dutch Childhood Cancer Survivor Study (DCCSS) LATER cohort, a nationwide cohort of CCS (≥5 years after diagnosis) and siblings as controls. Fatigue severity was assessed with the 'fatigue severity subscale' of the Checklist Individual Strength ('CIS-fatigue'). CF was defined as scoring ≥35 on the 'CIS-fatigue' and having fatigue symptoms for ≥6 months. Twenty-four parameters were assessed, categorized into assumed fatigue triggering, maintaining and moderating factors. Multivariable logistic regression analyses were carried out to investigate the association of these factors with CF.

RESULTS

A total of 1927 CCS participated in the study (40.7% of invited cohort), of whom 23.6% reported CF (compared with 15.6% in sibling controls, P < 0.001). The following factors were associated with CF: obesity [versus healthy weight, odds ratio (OR) 1.93; 95% confidence interval (CI) 1.30-2.87], moderate physical inactivity (versus physical active, OR 2.36; 95% CI 1.67-3.34), poor sleep (yes versus no, OR 2.03; 95% CI 1.54-2.68), (sub)clinical anxiety (yes versus no, OR 1.55; 95% CI 1.10-2.19), (sub)clinical depression (yes versus no, OR 2.07; 95% CI 1.20-3.59), pain (continuous, OR 1.49; 95% CI 1.33-1.66), self-esteem (continuous, OR 0.95; 95% CI 0.92-0.98), helplessness (continuous, OR 1.13; 95% CI 1.08-1.19), social functioning (continuous, OR 0.98; 95% CI 0.97-0.99) and female sex (versus male sex, OR 1.79; 95% CI 1.36-2.37).

CONCLUSION

CF is a prevalent symptom in CCS that is associated with several assumed maintaining factors, with lifestyle and psychosocial factors being the most prominent. These are modifiable factors and may therefore be beneficial to prevent or reduce CF in CCS.

Lifetime Burden of Psychological Symptoms, Disorders, and Suicide Due to Cancer in Childhood, Adolescent, and Young Adult Years: A Systematic Review and Meta-analysis

Importance

A cancer diagnosis and treatment may result in highly traumatic periods with lasting psychological consequences for children, adolescent, and young adult patients with cancer (CYACs). Early identification and management may prevent long-term psychological morbidity and suicide.

Objective

To analyze risk, severity, and risk factors for depression, anxiety, psychotic disorders, and suicide in CYACs and noncancer comparators.

Data Sources

Literature search of PubMed, MEDLINE, Embase, PsycINFO, CINAHL, and PubMed Central from January 1, 2000, to November 18, 2022.

Study Selection

Full-length articles in peer-reviewed journals that measured and reported risk and/or severity of depression, anxiety, psychotic disorders, and suicide mortality in CYACs and a noncancer comparator group.

Data Extraction and Synthesis

Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) reporting guidelines were followed with prospective PROSPERO registration.

Main Outcomes and Measures

Risk ratios (RRs) were used for dichotomous outcomes, and standardized mean differences (SMDs) were used for continuous outcomes. SMDs were defined as follows: 0.2, small; 0.5, medium; and 0.8, large. Sources of heterogeneity and risk factors were investigated using sensitivity, subgroup, and meta-regression analyses.

Results

From 7319 records, 52 studies were included. Meta-analyses revealed that CYACs were at increased lifetime risk of severe symptoms or a disorder of depression (RR, 1.57; 95% CI, 1.29-1.92), anxiety (RR, 1.29; 95% CI, 1.14-1.47), and psychotic disorders (RR, 1.56; 95% CI, 1.36-1.80) relative to both matched controls and their siblings. Overall suicide mortality was not significantly elevated (RR, 1.63; 95% CI, 0.78-3.40). The mean severity of depression was found to be elevated in CYACs receiving treatment (SMD, 0.44; 95% CI, 0.13-0.74) and long-term survivors (SMD, 0.18; 95% CI, 0.02-0.33). The mean severity of anxiety was found to be elevated only during treatment (SMD, 0.16; 95% CI, 0.03-0.20).

Conclusions and Relevance

Findings of this systematic review and meta-analysis suggest that CYACs may experience lasting psychological burden long into survivorship. Timely identification, preventive efforts, and psycho-oncological intervention for psychological comorbidity are recommended.

Contribution of Fatigue to Cognitive Dysfunction in Childhood Acute Lymphoblastic Leukemia Survivors

Late effects such as neurocognitive issues and fatigue have been reported in childhood acute lymphoblastic leukemia (cALL) survivors. Yet, their association is often poorly understood. In this study, we wished to (1) describe neurocognitive difficulties and fatigue in a well-characterized cohort of long-term cALL survivors and (2) explore the risk of having neurocognitive deficits as a function of fatigue. Childhood ALL survivors (N = 285) from three Canadian treatment centers completed the DIVERGT battery of cognitive tests and the PedsQL Multidimensional Fatigue Scale. We performed logistic regressions to assess the risk of a survivor to show cognitive deficits (<2.0 SD) depending on their fatigue levels. At least one cognitive deficit on the DIVERGT was present in 31% of participants. Domains primarily affected were working memory, fine motor skills, and verbal fluency. Sleep/rest fatigue in youths was higher than norms (d = 0.35). The risk for cognitive deficits increased independently with levels of fatigue in the domains of cognitive speed and flexibility, working memory, and verbal fluency. For every 10-point increase on general or sleep/rest fatigue on the 0-100 scale, there was a median +23-35% risk of showing a deficit among the 7 tasks significantly associated with fatigue. Fatigue may constitute a complementary target when searching to mitigate cognitive issues in this population.

Cancer-Related Fatigue and Daily Living Activities in Pediatric Cancer Survivors

Cancer-related long-term complications such as cardiovascular disease, fatigue, weight-related problems, and emotional disturbances are found to be increased in pediatric cancer survivors (PCSs). The relationship between daily living activities (DLAs) and such complications is still being investigated. Our aim in this study was to investigate the relationship between the cancer-related fatigue and DLA in PCS. Cancer-related fatigue was assessed by "PedsQL Multidimensional Fatigue Scale (MFS)" and "visual analog scale (VAS)." The DLA was evaluated by WeeFIM. There were 77 PCS (44 boys) with a mean age of 10.76 years. The mean value of fatigue scales were VAS 2.48, and MFS total score 71.14. WeeFIM total result was 118.64. While there was a statistically significant relationship between VAS fatigue score and WeeFIM total score ( r=- 0.387; P =0.007), there was no such correlation between WeeFIM total score with MFS total score ( r =0.250; P =0.080). It is established that there is a relationship between level of fatigue and DLA. Risk factors like tumor type or treatment modalities for fatigue should be investigated in larger samples of specific survivor groups. Fatigue and its association with DLA should be screened clinically as a routine surveillance in PCS and treatment options be planned.

Cancer-related fatigue in childhood cancer survivors: A systematic scoping review on contributors of fatigue and how they are targeted by non-pharmacological interventions

OBJECTIVES

We aimed to identify contributors to cancer-related fatigue (CRF), explore non-pharmacological interventions addressing CRF, and highlight which contributors were targeted by these interventions in childhood cancer survivors.

METHODS

We performed a search in various databases and used the PRISMA-ScR checklist. Findings were synthesized in various different tables and figures in accordance with our objectives.

RESULTS

We included 49 articles in this systematic scoping review. We identified 59 significant contributors. Depression and physical activity level were some of the most studied significant contributors. Ten interventional studies were identified (e.g., yoga, physical activity intervention) that addressed 6 contributors (e.g., physical activity level).

DISCUSSION

This review is the first to describe and relate contributors and non-pharmacological interventions targeting CRF in childhood cancer survivors. Important clinical implications could be derived from the variety of factors explaining CRF and how it is currently addressed.

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.

Assessing fatigue in childhood cancer survivors: Psychometric properties of the Checklist Individual Strength and the Short Fatigue Questionnaire--a DCCSS LATER study

Background

Fatigue is often reported by patients with childhood cancer both during and after cancer treatment. Several instruments to measure fatigue exist, although none are specifically validated for use in childhood cancer survivors (CCS). The aim of the current study was to present norm values and psychometric properties of the Checklist Individual Strength (CIS) and Short Fatigue Questionnaire (SFQ) in a nationwide cohort of CCS.

Methods

In total, 2073 participants were included from the Dutch Childhood Cancer Survivor Study (DCCSS) LATER cohort. Normative data, construct validity, structural validity, and internal consistency were calculated for the CIS and SFQ. In addition, reliability and a cutoff score to indicate severe fatigue were determined for the SFQ.

Results

Correlations between CIS/SFQ and vitality measures asking about fatigue were high (>0.8). Correlations between CIS/SFQ and measures of different constructs (sleep, depressive emotions, and role functioning emotional) were moderate (0.4–0.6). Confirmatory factor analysis resulted in a four‐factor solution for the CIS and a one‐factor solution for the SFQ with Cronbach's alpha for each (sub)scale showing good to excellent values (>0.8). Test–retest reliability of the SFQ was adequate (Pearson's correlation = 0.88; ICC = 0.946; weighted Cohen's kappa item scores ranged 0.31–0.50) and a cut‐off score of 18 showed good sensitivity and specificity scores (92.6% and 91.3%, respectively).

Conclusion

The current study shows that the SFQ is a good instrument to screen for severe fatigue in CCS. The CIS can be used as a tool to assess the multiple fatigue dimensions in CCS.

Prevalence and risk factors of cancer-related fatigue in childhood cancer survivors: A DCCSS LATER study

Background

Cancer‐related fatigue is a debilitating late effect after treatment for childhood cancer. The prevalence of fatigue in childhood cancer survivors (CCSs) and associated factors for fatigue has varied widely in previous studies. Two important aspects of cancer‐related fatigue, its severity and chronicity, are often not assessed. This study investigated the prevalence of, and risk factors for, severe chronic fatigue (CF) in a national cohort of Dutch CCSs.

Methods

In this study, 2810 CCSs (5‐year survivors of all childhood malignancies diagnosed between 1963 and 2001 with a current age of 12‐65 years) and 1040 sibling controls were included. CF was assessed with the Short Fatigue Questionnaire and was defined as a score ≥ 18 and persistence of fatigue for ≥6 months. Cancer‐ and treatment‐related characteristics, current health problems, and demographic and lifestyle variables were assessed as potential risk factors for CF via multivariable logistic regression analyses.

Results

In adult CCSs and sibling controls (≥18 years old), the prevalence of CF was 26.1% and 14.1%, respectively (P < .001). In adolescent CCSs and sibling controls (<18 years old), the prevalence of CF was 10.9% and 3.2%, respectively. Female gender (odds ratio [OR], 2.13; 95% confidence interval [CI], 1.73‐2.62), unemployment (OR, 2.18; 95% CI, 1.67‐2.85), having 1 or more health problems (OR for 1‐2, 1.48; 95% CI, 1.18‐1.87; OR for >2, 2.20; 95% CI, 1.50‐3.21), and a central nervous system diagnosis (OR, 1.74; 95% CI, 1.17‐2.60) were significantly associated with CF in adult CCSs.

Conclusions

This study shows that CCSs, regardless of their cancer diagnosis, report CF more often than sibling controls. This study provides new evidence for the prevalence of fatigue in CCSs.

One in 4 childhood cancer survivors reports chronic fatigue. Current health problems increase the risk of reporting chronic fatigue.

Methodology of the DCCSS later fatigue study: a model to investigate chronic fatigue in long-term survivors of childhood cancer

BACKGROUND

A debilitating late effect for childhood cancer survivors (CCS) is cancer-related fatigue (CRF). Little is known about the prevalence and risk factors of fatigue in this population. Here we describe the methodology of the Dutch Childhood Cancer Survivor Late Effect Study on fatigue (DCCSS LATER fatigue study). The aim of the DCCSS LATER fatigue study is to examine the prevalence of and factors associated with CRF, proposing a model which discerns predisposing, triggering, maintaining and moderating factors. Triggering factors are related to the cancer diagnosis and treatment during childhood and are thought to trigger fatigue symptoms. Maintaining factors are daily life- and psychosocial factors which may perpetuate fatigue once triggered. Moderating factors might influence the way fatigue symptoms express in individuals. Predisposing factors already existed before the diagnosis, such as genetic factors, and are thought to increase the vulnerability to develop fatigue. Methodology of the participant inclusion, data collection and planned analyses of the DCCSS LATER fatigue study are presented.

RESULTS

Data of 1955 CCS and 455 siblings was collected. Analysis of the data is planned and we aim to start reporting the first results in 2022.

CONCLUSION

The DCCSS LATER fatigue study will provide information on the epidemiology of CRF and investigate the role of a broad range of associated factors in CCS. Insight in associated factors for fatigue in survivors experiencing severe and persistent fatigue may help identify individuals at risk for developing CRF and may aid in the development of interventions.

Recommendations for the surveillance of cancer-related fatigue in childhood, adolescent, and young adult cancer survivors: a report from the International Late Effects of Childhood Cancer Guideline Harmonization Group

PURPOSE

Cancer-related fatigue (CRF) negatively affects the lives of childhood, adolescent, and young adult (CAYA) cancer survivors. We aimed to provide an evidence-based clinical practice guideline (CPG) with internationally harmonized CRF surveillance recommendations for CAYA cancer survivors diagnosed < 30 years.

METHODS

This CPG was developed by a multidisciplinary panel under the umbrella of the International Late Effects of Childhood Cancer Guideline Harmonization Group. After evaluating concordances and discordances of four existing CPGs, we performed systematic literature searches. We screened articles for eligibility, assessed quality, extracted, and summarized the data from included articles. We formulated recommendations based on the evidence and clinical judgment.

RESULTS

Of 3647 articles identified, 70 articles from 14 countries were included. The prevalence of CRF in CAYA cancer survivors ranged from 10-85%. We recommend that healthcare providers are aware of the risk of CRF, implement regular screening with validated measures, and recommend effective interventions to fatigued survivors.

CONCLUSIONS

A considerable proportion of CAYA cancer survivors suffers from CRF even years after the end of treatment.

IMPLICATIONS FOR CANCER SURVIVORS

We recommend that healthcare providers adopt regular screening to detect and treat CRF early and positively influence survivors' health and quality of life.

Severe fatigue after treatment for childhood cancer

BACKGROUND

Treatment strategies for childhood cancer are improving, resulting in higher survival rates. However, the consequences of childhood cancer do not end with the successful completion of cancer treatment. Most patients will develop late effects after cessation of treatment. Severe fatigue is seen as a common and debilitating late effect in cancer survivors. Although most research on fatigue has been performed in patients after adult-onset cancer, our review focuses on fatigue after childhood cancer.

OBJECTIVES

To estimate the prevalence of severe fatigue after treatment for childhood cancer. Secondary objectives are to describe the course of severe fatigue following cancer treatment and to examine risk factors for fatigue, or factors associated with it.

SEARCH METHODS

We searched the Cochrane Central Register of Controlled Trials (the Cochrane Library 2019; issue 8 March 2019), MEDLINE/PubMed (from 1945 to 8 March 2019), Embase/Ovid (from 1947 to 8 March 2019), reference lists of included articles and several conference proceedings from 2011 to 2018.

SELECTION CRITERIA

Observational studies, randomised controlled trials and controlled clinical trials reporting on fatigue in participants after treatment for childhood cancer. Case series and case reports were not eligible for inclusion.

DATA COLLECTION AND ANALYSIS

Two review authors independently extracted data and assessed risks of bias. If the publication did not present the prevalence of severe fatigue, we contacted study authors for additional information.

MAIN RESULTS

We included 30 studies (18,682 participants in total). Eighteen studies contributed to the main objective and 22 studies contributed to the secondary objectives. We found substantial differences between studies in cancer diagnosis, cancer treatment, age of participants, questionnaires used to assess fatigue, and sample size. All included studies scored at least one 'Risk of bias' item as unclear or high risk. We identified both clinical and statistical heterogeneity and therefore could not pool results, so we present them descriptively. Eighteen studies (describing 14,573 survivors) reported the prevalence of severe fatigue, which ranged from 0% to 61.7%. In a subgroup of three studies including children aged up to 18 years at fatigue assessment (268 survivors), prevalence rates ranged from 6.7% to 12.5%. In comparison, in a subgroup of 12 studies including participants aged 16 and over (13,952 survivors), prevalence rates ranged from 4.4% to 61.7%. The prevalence of severe fatigue in a subgroup of survivors of haematological cancer was presented in seven studies and ranged from 1.8% to 35.9% (1907 survivors). Prevalence of severe fatigue in brain cancer survivors was presented in two studies (252 survivors) and was 14.6% and 21.1% respectively. One study presented a prevalence for bone cancer survivors of 0.0% (17 survivors). Four studies provided prevalence rates of severe fatigue in control groups of siblings or population-based controls, which ranged from 3.1% to 10.3%. In these four studies, survivors were more often fatigued than controls, but this difference was statistically significant in only two studies. Studies assessing risk and associated factors for fatigue were heterogeneous, and definitions of the factors under study were often inconsistent, with results therefore presented descriptively. They found that depression might be associated with fatigue. In contrast, age at diagnosis and education level did not seem to be associated with fatigue. We were unable to calculate any overall risk estimate for any of the reported risks and associated factors, because we could not conduct meta-analysis. One study provided information about the course of fatigue over time, and found that over the course of 2.7 years, 32 of the 102 participants (31.4%) reported persistent severe fatigue.

AUTHORS' CONCLUSIONS

It is unclear how many childhood cancer survivors suffer from severe fatigue. This review encountered several difficulties. We found statistical and clinical heterogeneity and great variation in the reporting of possible risk and associated factors. The evidence in this review is therefore weak, and the exact prevalence of severe fatigue after treatment for childhood cancer remains to be determined. This is also the case for the course of severe fatigue following treatment and the strength of the relationship between fatigue and associated and risk factors. Despite these limitations, our review does provide a comprehensive overview of the existing literature about severe fatigue after treatment for childhood cancer.

Chronic fatigue and associated factors among long-term survivors of cancers in young adulthood

Background: Chronic fatigue (CF) is scarcely explored among young adult cancer survivors (YACSs), and more knowledge is needed to develop targeted interventions for YACSs with CF. The present study aimed to investigate the prevalence of CF and associated factors in YACSs. Also, the change of fatigue with time was explored. Material and methods: The present cross-sectional study is part of a nation-wide population based survey of Norwegian survivors of cancer in childhood, adolescence, and young adulthood (The NOR-CAYACS study).YACSs diagnosed at the age of 19-39 years with breast cancer stage ≤ III (BC), colorectal cancer (CRC), non-Hodgkin lymphoma (NHL), acute lymphoblastic leukemia, or non-metastatic malignant melanoma (MM) were included 5-30 years after diagnosis. Survivors of MM treated with limited surgery were included as a reference group. CF was assessed by the Fatigue Questionnaire. Logistic regression analyses were performed to identify factors associated with CF. Results: In total, 1488 survivors completed the questionnaire (a response rate of 42%), of which 1088 were eligible for the present study. Overall, 25% reported CF. CF was significantly more prevalent among survivors of BC (29%) (p < .001), CRC (29%) (p = .001) and NHL (27%) (p = .003) than among survivors of MM (15%). CF was associated with systemic treatment combined with surgery and/or radiotherapy (p = .018), comorbidity (p = .038), pain (p = .002), numbness in hands/feet (p = .046), and depressive symptoms (p < .001) in the multivariable model. Among survivors with CF, 60% reported that they had been tired since cancer treatment, and among these, 65% reported worsening or no change of fatigue with time. Conclusion: One of four YACSs reported CF 15 years from diagnosis (mean). CF was associated with several possibly treatable factors. Health professionals involved in the follow-up of YACSs should have knowledge of CF and approaches to manage it.

Adventure-based training to promote physical activity and reduce fatigue among childhood cancer survivors: A randomized controlled trial

BACKGROUND

Cancer-related fatigue is one of the most distressing symptoms reported by childhood cancer survivors. Despite the body of evidence that regular physical activity helps alleviate cancer-related fatigue, insufficient participation in physical activity is frequently observed among childhood cancer survivors.

OBJECTIVES

This study examined the effectiveness of an adventure-based training programme in promoting physical activity, reducing fatigue, and enhancing self-efficacy and quality of life among Hong Kong Chinese childhood cancer survivors.

DESIGN

A prospective randomised controlled trial.

SETTINGS

A paediatric oncology outpatient clinic, a non-governmental organisation, and a non-profit voluntary organisation.

PARTICIPANTS

Hong Kong Chinese childhood cancer survivors aged 9-16 years who reported symptoms of fatigue and had not engaged in regular physical exercise in the past 6 months.

METHODS

The experimental group underwent a 4-day adventure-based training programme. The control group received a placebo intervention. The primary outcome was fatigue at 12 months. Secondary outcomes were physical activity levels, self-efficacy and quality of life at 12 months. Data collection was conducted at baseline, and 6 and 12 months after the intervention began. We performed intention-to-treat analyses.

RESULTS

From 6 January, 2014 to 8 June, 2015, we randomly assigned 222 eligible childhood cancer survivors to either an experimental (n = 117) or a control group (n = 105). The experimental group showed statistically significantly lower levels of cancer-related fatigue (P < 0.001), higher levels of self-efficacy (P < 0.001) and physical activity (P < 0.001), and better quality of life (P < 0.01) than the control group at 12 months.

CONCLUSIONS

This study provides evidence that adventure-based training is effective in promoting physical activity, reducing cancer-related fatigue, and enhancing self-efficacy and quality of life among Hong Kong Chinese childhood cancer survivors. These results may help inform parents and healthcare professionals that regular physical activity is crucial for the physical and psychological wellbeing and quality of life of childhood cancer survivors.

Cancer Survivorship in Adults

With the favorable trend regarding survival of cancer in the Western world, there is an increasing focus among patients, clinicians, researchers, and politicians regarding cancer survivors' health and well-being. The number of survivors grows rapidly, and more than 3% of the adult populations in Western countries have survived cancer for 5 years or more. Cancer survivors are at increased risk for a variety of late effects after treatment, some life-threatening such as secondary cancer and cardiac diseases, while others mainly have negative impact on daily functioning and health-related quality of life (HRQOL). The latter factors include fatigue, anxiety disorders, sexual problems, insomnia, and reduced work ability, while depression does not seem to be more common among survivors than in the general population. Life style factors are highly relevant for cancer survivors concerning risk of relapse and somatic comorbidity. The field of cancer survivorship research has grown rapidly. How to best integrate the knowledge of the field into clinical practice with adequate follow-up of cancer survivors at risk for developing late effects, is still an unresolved question, although several models are under consideration.

Adverse Health Outcomes and Associations with Self-Reported General Health in Childhood Lymphoma Survivors

BACKGROUND

The increased incidence of physical and psychosocial adverse health outcomes (AHOs) in childhood lymphoma survivors (CLSs) is well known, but these AHOs' association with self-reported general health is rarely described.

AIM

We explored this association among long-term CLSs.

METHODS

In 124 CLSs (Hodgkin: 81; non-Hodgkin: 43; median age: 33 years), physical AHOs were graded based on slightly modified common toxicity criteria for adverse effects (CTCAE)-4 recommendations (Grade 0-3). Psychosocial AHOs (pain, work inability, fatigue, and mental distress) were mainly assessed by validated patient-reported questionnaires (Grade 0-2). The results were related to contemporary self-reported general health. Statistical significance: p < 0.01.

RESULTS

At least one physical AHO was found in 120 CLSs, being of Grades 1, 2, and 3, respectively, in 43, 43, and 34 survivors. The prevalence of psychosocial AHOs (Grades 1 or 2) was 63%, being Grade 2 in 62 CLSs. The CLSs described their general health as significantly reduced compared with controls, with the greatest reduction for survivors in whom physical AHOs were combined with moderate to severe psychosocial AHOs.

CONCLUSION

Psychosocial more than physical AHOs impact on CLSs' current self-reported general health. Clinicians responsible for follow-up of CLSs should be aware of the strong reduction of contemporary general health by Grade 2 psychosocial AHOs. The study challenges the use of the physician-assessed CTCAE-4 categories in long-term cancer survivors and emphasizes the need to develop instruments, which reflect both physical and psychosocial AHOs in these individuals.

Experiences with late effects-related care and preferences for long-term follow-up care among adult survivors of childhood lymphoma

PURPOSE

Given childhood cancer survivors' risk of treatment-induced late effects, long-term follow-up care is recommended. We explored experiences with late effects-related care and preferences for long-term follow-up care among adult survivors of childhood malignant lymphoma in Norway.

METHODS

We conducted five focus group interviews with 34 survivors (19 females; 21 Hodgkin/13 non-Hodgkin lymphoma survivors; mean age 39 years; mean time from diagnosis 26 years). Data was analyzed using principles of thematic analysis.

RESULTS

Two main themes were identified: (1) the survivors' experiences with late effects-related care and (2) their preferences for long-term follow-up care. Most of the survivors were dissatisfied with their late effects-related care due to perceptions of poor coordination of healthcare needs in a fragmented system, combined with a perceived lack of knowledge of late effects among themselves and general practitioners (GPs). All survivors valued long-term follow-up care. Oncologists were the preferred care providers, but GPs were considered acceptable providers if they had sufficient knowledge of late effects and routine examinations, short waiting times, and improved GP-oncologist collaboration.

CONCLUSIONS

Our results suggest that a shared care model of long-term follow-up care involving specialists, GPs, and the survivors themselves is likely to fulfill several of the currently unmet needs among adult survivors of childhood cancers. Improved patient education about late effects and follow-up care would aid self-management. The survivors' concerns regarding lack of sufficient knowledge of late effects among GPs suggest a need for improving access to, and dissemination of, information of late effects.

Prevalence and Intensity of Pain and Other Physical and Psychological Symptoms in Adolescents and Young Adults Diagnosed with Cancer on Referral to a Palliative Care Service

PURPOSE

While adolescent and young adult (AYA) oncology is recognized as a distinct specialty, there remains a paucity of literature documenting symptomatology in this cohort. This study aimed to identify the prevalence, severity, and mechanism of pain and other symptoms in AYA patients referred to a palliative care service in a specialist Australian cancer center.

METHODS

A retrospective design analyzed the case file data of 33 eligible AYA patients aged 15-25 years old at diagnosis and two randomly selected control groups of patients >25 years old: unmatched and matched for diagnosis and sex. All cases were referred to the palliative care service between July 2009 and June 2012. Descriptive statistics, analysis of Edmonton Symptom Assessment Scale (ESAS) and Edmonton Classification System of Cancer Pain (ECS-CP) data, and non-parametric tests were performed.

RESULTS

The most common malignancies among the AYA patients were sarcoma and hematological cancers. All AYA patients reported pain syndrome on the ECS-CP compared with 85% of the matched controls (p=0.018). An age group effect was found for mechanisms of pain (p=0.035). A trend toward more neuropathic pain among AYA cases was also found (59% vs. 39%). The most common ESAS symptoms in AYAs were pain (91%), diminished well-being (76%), fatigue (75%), and decreased appetite (67%).

CONCLUSION

AYA cancer patients appear to experience a unique symptom profile with high symptom prevalence and complexity. Further research is warranted to identify determinants and inform integration of supportive and palliative care services for this unique patient cohort.

Teenage and Young Adult Cancer-Related Fatigue Is Prevalent, Distressing, and Neglected: It Is Time to Intervene. A Systematic Literature Review and Narrative Synthesis

PURPOSE

Cancer-related fatigue in adults has been the subject of considerable recent research, confirming its importance as a common and debilitating symptom, and establishing a number of evidence-based interventions. There has, however, been limited focus on the fatigue suffered by teenagers and young adults with cancer, a group recognized as having unique experiences and developmental needs. We have undertaken a systematic review of the literature to provide a comprehensive overview of studies evaluating fatigue in this younger patient group in order to guide clinical practice and future research.

METHOD

We searched MEDLINE, EMBASE, PsycINFO, and CINAHL databases for literature containing data relating to any aspect of fatigue in patients aged 13-24 at cancer diagnosis or treatment.

RESULTS

Sixty articles were identified, of which five described interventional clinical trials. Cancer-related fatigue was consistently one of the most prevalent, severe, and distressing symptoms, and it persisted long-term in survivors. It was associated with a number of factors, including poor sleep, depression, and chemotherapy. There was little evidence for the effectiveness of any intervention, although exercise appears to be the most promising. Importantly, fatigue was itself a significant barrier to physical and social activities.

CONCLUSION

Cancer-related fatigue is a major and disabling problem in young cancer patients. Effective management strategies are needed to avoid compounding the dependence and social isolation of this vulnerable patient group. Future research should focus on providing evidence for the effectiveness of interventions, of which activity promotion and management of concurrent symptoms are the most promising.

Psychometric properties of the Chinese version of the fatigue scale-adolescent

Background

The availability of a valid and reliable instrument that accurately assesses the level of fatigue among adolescent cancer survivors is crucial before any appropriate interventions to reduce their fatigue can be appropriately planned and evaluated. The study aimed to test the psychometric properties of the Chinese version of the Fatigue Scale for Adolescents. In particular, confirmatory factor analysis was conducted to examine its factorial structure.

Methods

A cross-sectional study was employed. Adolescents (13- to 18-year-olds) who had survived cancer and attended medical follow-up at the outpatient clinic in Hong Kong were invited to participate. The internal consistency, content validity and construct validity and test-retest reliability of the Chinese version of the Fatigue Scale for Adolescents were assessed.

Results

The content validity index was 0.92. There was a strong positive correlation between adolescents’ levels of fatigue and depressive symptoms (r = 0.53) and a strong negative correlation between adolescents’ levels of fatigue and quality of life (r = –0.58). The mean levels of fatigue of the survivors group was significantly lower than that of those still receiving treatment in hospital, but significantly higher than that of their healthy counterparts. Confirmatory factor analysis indicated that there were 4 factors underlying the Chinese version of the Cancer Module.

Conclusions

The findings of the study add further evidence that the Chinese version of the Fatigue Scale for Adolescents (12-item) can be used as a reliable and valid tool in assessing cancer-related fatigue among Hong Kong Chinese adolescents who have survived cancer.

Relationship between sleep problems and psychological outcomes in adolescent and young adult cancer survivors and controls

PURPOSE

How cancer history and distress relate to sleep outcomes of adolescents and young adults (AYAs) is unclear. The current study compares AYA cancer survivors to controls on indicators of sleep and fatigue; examines the concurrent association between psychological status, sleep, and fatigue; and investigates the lagged relationship between sleep and fatigue problems with psychological functioning.

METHODS

AYA cancer survivors (n = 167) and controls (n = 170), ages 16 to 30, completed measures at a survivorship clinic/primary care visit (time 1) and 2 months later (time 2). Participants completed questions about sleep quality, quantity, sleep medication use, self-reports of sleep problems, and fatigue in addition to measures of depression, anxiety, and posttraumatic stress symptoms (PTSS).

RESULTS

There were no differences in sleep quantity or quality between survivors and controls, but survivors reported significantly more fatigue. Within groups, AYAs with self-reported sleep and fatigue problems reported significantly higher depression, anxiety, and PTS symptoms. Controlling for baseline depression, sleep, and fatigue problems at time 1 significantly predicted depression at time 2 in survivors but not in controls.

CONCLUSION

This study offers important insight into the psychological functioning of childhood cancer survivors and prospectively describes sleep and fatigue as risk factors for poor psychological functioning in survivors. These findings support screening for sleep problems in AYA survivors as these difficulties are closely related to mental health functioning.

Cancer survivorship in adults

With the favorable trend regarding survival of cancer in the Western world, there is an increasing focus among patients, clinicians, researchers, and politicians regarding cancer survivors' health and well-being. Their number is rapidly growing and more than 3 % of the adult populations in Western countries have survived cancer for 5 years or more. Cancer survivors are at increased risk for a variety of late effects after treatment, some life-threatening such as secondary cancer and cardiac diseases, others might negatively impact on their daily functioning and quality of life. The latter might include fatigue, anxiety disorders and difficulties returning to work while depression does not seem to be more common among survivors than in the general population. Still, the majority of survivors regain their health and social functioning. The field of cancer survivorship research has been rapidly growing. Models for follow-up care of cancer survivors have been proposed, but how to best integrate the knowledge of the field into clinical practice with adequate follow-up of cancer survivors at risk for developing late effects is still an unsolved question.