Childhood Cancer Research Articles

Childhood cancer and prenatal exposure to air pollution: A population-based cohort study

Childhood cancer and prenatal exposure to air pollution: A population-based cohort study

Exposures to Artificial Light at Night and Ambient Fine Particulate Matter and Risk of Pediatric Papillary Thyroid Cancer

Exposures to Artificial Light at Night and Ambient Fine Particulate Matter and Risk of Pediatric Papillary Thyroid Cancer

Parental employment in bitumen-related industries in relation to childhood cancer risk

Parental employment in bitumen-related industries in relation to childhood cancer risk

Prenatal exposure to perfluoroalkyl substances (PFAS) via water contamination and risk of childhood cancers in California, 2000-2015

Prenatal exposure to perfluoroalkyl substances (PFAS) via water contamination and risk of childhood cancers in California, 2000-2015

Construction of a nutritional assessment tool for the pediatric cancer population (ANPEDCancer): content validation using the Delphi method.

Construction of a nutritional assessment tool for the pediatric cancer population (ANPEDCancer): content validation using the Delphi method.

Preparing Children for Invasive MedicalCancer Treatment with "My Logbook": Preliminary Results of a Pilot Study.

Pediatric cancer is one of the most burdensome chronic diseases, necessitating a variety of severe medical interventions. As a result, the disease and its treatment cause numerous acute and long-term medical, psychological, and socioeconomic strains for young patients and their families. Therefore, psychosocial care using evidence-based interventions (EBIs) before, during, and after medical treatments is essential to ensure that patients receive adequate information and to minimize the adverse emotional and psychosocial impacts such as insecurity, fear, and shame. The present study reports the first promising results of applying cancer-specific psychosocial methods developed in the quality improvement project "My Logbook." The four assessed tools are specifically designed to adequately prepare pediatric cancer patients for surgery, chemotherapy, radiotherapy, and stem cell transplantation. Self and proxy ratings were used to assess the patients' subjective knowledge and emotional well-being before and after each intervention session. The results showed that patient-centered interventions using various creative and developmentally adapted methodologies (e.g., psychoeducation, crafting, games) have the potential to effectively enhance patient health literacy (V = 120.5, p < .001, r = 0.33) and well-being as manifested in more positive (slope = 0.121, p = .016) and less negative (slope = - 0.350, p < .001) or neutral emotions (slope = - 0.202, p = .002). These findings highlight the importance of developing and implementing psychosocial tools in pediatric oncology to prevent psychological overload and negative emotions and to increase subjective control beliefs, autonomy, and empowerment. Moreover, the effective application and systematic evaluation of evidence-based psychosocial tools can facilitate the establishment of standardized guidelines for psychosocial care in pediatric oncology. Thereby, the final goal is to ensure the quality of care and to use education to increase the quality of life for all pediatric cancer patients.Trial registration: ClinicalTrials.gov Identifier: NCT04474678 (July 17, 2020).

Living With Cancer: Child-Parent Dyads' Perspectives and Experiences From a Private Tertiary Care Hospital in Pakistan.

The life experiences of children with cancer and their parents as individuals have been well documented in literature. However, little is known about their experiences as child-parent dyads in Pakistan regarding these children's quality of life. Thus, the study was conducted in the context of the family-centric society of Pakistan. In-depth interviews were conducted with 28 participants (14 child-parent dyads), comprising 9 female and 5 male children receiving cancer treatment and 8 mothers and 6 fathers (primary caregivers). All the participants were Muslims and hailed from diverse ethnic backgrounds, and most belonged to middle socioeconomic backgrounds. Thematic analysis was performed using Braun and Clarke's (2006) framework, which revealed four themes: (1) Stress, Fears, and Optimism; (2) Reactions to Restrictions; (3) Adaptation and Coping; and (4) Support Structure and Mechanisms. The findings indicated that children's and parents' daily lives were affected in various ways during the children's cancer journey. They faced several challenges which impacted their well-being. Particularly, the children considered their symptoms as restrictions in the way of carrying out their routine lives. However, children and parents also elaborated on using different coping strategies, such as play, reminiscing the past, incorporating religious practices into their daily routines, and keeping a family-centred approach towards the child's care. The parents also recommended that cancer-specialised services and support groups should be accessible. Conclusively, these findings are useful for healthcare providers in giving family-centred care to afflicted families and devising innovative interventions that address the needs of children with cancer and improve their quality of life.

Feasibility, efficacy, and safety of animal-assisted activities with visiting dogs in inpatient pediatric oncology.

Childhood cancer entails a heavy burden for patients and their families. Recent advances in overall survival rates have increasingly brought long-term quality of life into focus. Animal-assisted activities (AAAs) have long been hypothesized to alleviate the burden on pediatric patients and their peers in the hospital setting. However, their use in inpatient pediatric oncology has been a sensitive issue mainly due to the fear of infections, resulting in a lack of studies. This study presents data on the feasibility, safety, and efficacy of AAAs from a single German center. Between 2018 and 2022, 60 patients (median age = 10.3years) diagnosed with malignancy and undergoing treatment were visited by an intervention dog (total visits = 100). Patients were screened for infections as per hospital policy, with additional microbiological testing performed based on symptoms. The dog was screened for human pathogens and zoonoses. Microbial data and hospitalizations were analyzed from twomonths prior to the first visit until twomonths after the last visit. Acceptance of being in the hospital, both with and without planned animal-assisted interventions and pre- and post-intervention state stress, were measured using a validated visual analogue scale (0-10). Patients benefited from AAAs, showing increased acceptance of being in the hospital (median: 7.25 vs. 4.50, P < 0.001) and decreased median state stress ratings one hour after the visit compared to one hour before the visit (1.00 vs. 4.25, P < 0.001). The intervention did not result in an increased number of infections or unplanned hospitalizations, and no zoonoses were detected. All microbial screening tests of the dog were negative. AAAs with visiting dogs in inpatient pediatric oncology are feasible and safe. Although they hold promise for enhancing patients' well-being, further prospective studies are needed. Supplementary file2 (MP4 240076KB).

Characteristics of childhood cancer survivors attending a specialized survivorship clinic in the Deep South.

Childhood cancer survivors carry a high burden of late-occurring treatment-related morbidity. Long-term risk-based anticipatory surveillance allows for early detection and management of complications. We sought to examine demographic, clinical, and social characteristics associated with survivorship clinic attendance at the Taking on Life after Cancer (TLC) Clinic at the Children's Hospital of Alabama. The cohort included 1122 TLC-eligible patients diagnosed with cancer between 2000 and 2016. The outcome of interest was ≥1 TLC visit. Univariable logistic regression modeling assessed cancer type, treatment era, age, sex, race/ethnicity, payer type, rural/urban residency, and distance from clinic. Significant variables (P<0.1) were retained in multivariable modeling. The median age at diagnosis was 7 years old (0-19); 47% were female, 69% non-Hispanic White, 25% African American; 45% leukemia or lymphoma, 53% solid or CNS tumor, 3% other. We found that among 1122 survivors eligible to attend a survivorship clinic in the Deep South, only 52% attended. Odds of attendance were lower among survivors diagnosed at an older age, those with cancers other than leukemia/lymphoma, those lacking private insurance, and those living farther from the clinic. Race/ethnicity and rurality were not associated with clinic attendance. Just over half of eligible survivors attended survivorship clinic. Factors associated with non-attendance can be used to guide development of intervention strategies to ensure that childhood cancer survivors receive optimal long-term follow-up care. Measures of healthcare access (insurance status and distance to care) were identified as potential intervention targets to improve uptake of survivorship care.

Ambient air pollution and survival in childhood cancer: A nationwide survival analysis.

Particulate matter consisting of fine particles measuring 2.5 microns or less in diameter (PM2.5), a component of air pollution, has been linked to adverse health outcomes. The objective of this study was to assess the association between ambient PM2.5 exposure and survival in children with cancer in the United States. Individuals aged birth to 19 years who were diagnosed with cancer between January 1, 2004, and December 31, 2019, were selected from the National Cancer Database. The association between the annual PM2.5 level at the patient's zip code of residence at the time of diagnosis and overall survival was evaluated using time-varying Cox proportional hazards models (crude and adjusted for diagnosis year and age). To address concerns that exposure to air pollution is correlated with other social determinants of health, the authors tested the association between PM2.5 levels and survival among sociodemographic subgroups. Of the 172,550 patients included, 27,456 (15.9%) resided in areas with annual PM2.5 concentrations above the US Environmental Protection Agency (EPA) annual PM2.5 standard of 12 μg/m3. Residing in these high-pollution areas was associated with worse overall survival (adjusted hazard ratio [aHR], 1.06; 95% confidence interval [CI], 1.012-1.10). Similarly, when PM2.5 was evaluated as a linear measure, each unit increase in PM2.5 exposure was associated with worse survival (aHR, 1.011; CI, 1.005-1.017). Exposure to PM2.5 at levels above the EPA standards was also significantly associated with worse overall survival among sociodemographic subgroups. Exposure to PM2.5 was significantly associated with worse overall survival among children with cancer, even at levels below EPA air quality standards. These results underscore the importance of setting appropriate air quality standards to protect the health of this sensitive population. The authors investigated how living in areas with high air pollution (defined as particulate matter consisting of fine particles measuring 2.5 microns or less in diameter; PM2.5) affects the overall survival of children with cancer in the United States. The results indicated that children living in areas with higher PM2.5 levels, and even at levels below prior and current US Environmental Protection Agency standards, had lower survival rates than children living in areas with lower levels of PM2.5. This finding emphasizes the need for stricter air quality standards to better protect children, particularly those with serious health conditions like childhood cancer.

TG-IGF1R: A Novel Receptor Tyrosine Kinase Fusion Oncogene in Pediatric Thyroid Cancer.

Receptor Tyrosine Kinase (RTK) fusions of RET, NTRK1/3, and ALK are enriched among pediatric thyroid cancer patients with metastatic and persistent disease and their oncoproteins represent attractive drug targets. We performed RNA-sequencing in a papillary thyroid cancer lacking other frequent driver alterations. We report a novel RTK fusion, TG-IGF1R, in a 17-year-old female patient with angioinvasive follicular variant papillary thyroid cancer. The in-frame fusion protein preserves the cholinesterase-like domain of TG with dimerization properties and the transmembrane and kinase domain of IGF1R. The tumor sample shows increased IGF1R mRNA expression and tyrosine kinase phosphorylation, augmentation of MAPK transcriptional output genes and decreased NIS levels. We reveal a novel targetable kinase fusion oncogene in thyroid cancer which is not incorporated in different thyroid-specific sequencing panels. The integration of IGF1R fusion screening in the next versions of thyroid-specific targeted NGS panels may be beneficial to thyroid cancer patients.

Drug fever—an immune-mediated delayed type hypersensitivity reaction to Vinca alkaloids in pediatric oncology patients, possibly mediated by cysteinyl leukotrienes

BackgroundDrug hypersensitivity reactions are common in pediatric hemato-oncology patients due to multiple factors including immune compromise and pharmacological complexities. Fever can signify severe delayed-type hypersensitivity reactions such as drug reaction with eosinophilia and systemic symptoms (DRESS) or drug-induced hypersensitivity syndrome (DIHS). The etiology of fever as an isolated hypersensitivity reaction to chemotherapeutic agents not fully understood. Here, we report three children with intracranial neoplasms experiencing recurrent febrile reactions following Vinca alkaloid-based chemotherapy, mitigated by cysteinyl leukotriene receptor antagonist therapy.MethodsWe present a series of pediatric patients with diverse intracranial neoplasms who developed recurrent fever episodes after multiple courses of Vinca alkaloid-based chemotherapy. Treatment involved prophylactic and post-chemotherapy administration of a cysteinyl leukotriene receptor antagonist to prevent fever episodes and enable completion of chemotherapy regimens without protocol modifications or desensitization.ResultsAll three patients experienced fever consistent with delayed-type hypersensitivity reactions to Vinca alkaloids. Prophylactic use of the leukotriene antagonist Montelukast successfully prevented fever recurrence, allowing uninterrupted completion of chemotherapy courses.ConclusionOur findings suggest that Montelukast, a leukotriene antagonist, may be beneficial in managing fever as a delayed-type hypersensitivity reaction to Vinca alkaloids in pediatric patients. Further research is warranted to elucidate the underlying mechanisms and leukotriene pathways involved in drug-induced fever reactions.

Unusual “Mini-Rugby Ball” Pattern Solitary Lung Metastasis in Relapsed Ewing's Sarcoma

AbstractEwing's sarcoma (ES) is a mesenchymal origin malignant neoplasm that affects children and adolescents. It is the second most common type of bone sarcoma and accounts for approximately 1.5% of all childhood cancers with an annual incidence of 1 to 3 cases per million children under 16 years of age. In this article, we present the case of a 16-year-old adolescent girl. Lung metastasis at the initial diagnosis of ES is relatively uncommon but carries significant prognostic implications. Lung metastases in ES can vary significantly in size, ranging from small nodules (just a few millimeters in size) to the largest reported case being 15 cm. The size of the metastases impacts the choice of therapeutic strategies and the prognosis. Approximately 30% of patients with ES experience a relapse, with the lungs being a common site for metastatic disease. Relapsed lung metastasis on follow-up is a critical concern in the long-term management of ES. We describe a relapsed case of ES in a 16-year-old adolescent girl who presented with a solitary large metastatic right lung mass, with the longest dimension of 16 cm on craniocaudal measurement. The primary site of the tumor was the left distal femur, for which the patient received six cycles of neoadjuvant chemotherapy, followed by en bloc tumor excision and rotationplasty of the left distal femur, after which the patient received seven cycles of adjuvant chemotherapy. Subsequent 5 years of regular follow-up was asymptomatic. Later, the patient presented with back pain and cough, and was diagnosed with a solitary large right lung mass. Computed tomography (CT) guided biopsy of the right lung mass revealed a metastatic ES, for which she underwent chemoradiotherapy. This case highlights the large size of solitary lung metastases in relapsed ES.

Reduction of N-Acetylglucosaminyltransferase-I Activity Promotes Neuroblastoma Invasiveness and EGF-Stimulated Proliferation In Vitro

Aberrant N-glycosylation has been associated with progression of the pediatric cancer neuroblastoma (NB) but remains understudied. Here we investigated oligomannose N-glycans in NB by genetic editing of MGAT1 in a human NB cell line, BE(2)-C, called BE(2)-C(MGAT1−/−). Lectin binding studies confirmed that BE(2)-C(MGAT1−/−) had decreased complex and increased oligomannose N-glycans. The relevance of 2D and 3D cell cultures was demonstrated for cell morphology, cell proliferation, and cell invasion, thereby highlighting the necessity for 3D cell culture in investigating cancerous properties. Western blotting revealed that oligomannosylated EGFR had increased autophosphorylation. Proliferation was decreased in BE(2)-C(MGAT1−/−) using 2D and 3D cultures, but both cell lines had similar proliferation rates using 3D cultures without serum. Upon EGF treatment, BE(2)-C(MGAT1−/−), but not BE(2)-C, showed increased proliferation, and furthermore, the mutant proliferated much faster than BE(2)-C under 3D conditions. Cell spheroid invasiveness was greatly increased in BE(2)-C(MGAT1−/−) compared with BE(2)-C. Moreover, invasiveness was reduced in both cell lines with either EGF or RhoA activator treatment, regardless of the N-glycan population. Thus, this study further extends our earlier findings that oligomannose N-glycans enhance NB cell invasiveness, and that EGF stimulation of oligomannosylated EGFR greatly enhances cell proliferation rates, underlining the role of oligomannose N-glycans in the promotion of NB.

Pediatric oncology caregiving as narrative repair: Restor(y)ing disrupted family biographies and damaged moral identities.

Drawing on Arthur Frank's conceptualization of narrative repair, we consider how pediatric oncology nurses restore and re-story the narratives of patients and families whose biographies have been thrown off course by the diagnosis and death of a child from cancer, as well as their own narratives as caregivers. Frank argued that when one's life story is shipwrecked by chronic or life-threatening illness, storytelling is way to reorient one's biography to a new ending, repairing the narrative wreckage created by the illness experience. In this critical narrative study with nine pediatric oncology nurses in Ontario, Canada, we highlight how, through physical, narrative, and moral proximity, nurses become entwined in their patients' and families' illness narratives, and how developing this narrative knowledge provides nurses with opportunities to steer families onto new terrain. As well, we examine how nurses re-story and repair their own identities as "good" caregivers in situations when they are prevented from acting on behalf of their pediatric cancer patients. These findings contribute to literature on illness narratives by considering narrative repair as a relational process enacted as part of pediatric oncology caregiving.

Imaging adjuvants in pediatric surgical oncology.

Surgery is a crucial component of pediatric cancer treatment, but conventional methods may lack precision. Image-guided surgery, including fluorescent and radioguided techniques, offers promise for enhancing tumor localization and facilitating precise resection. Intraoperative molecular imaging utilizes agents like indocyanine green to direct surgeons to occult deposits of tumor and to delineate tumor margins. Next-generation agents target tumors directly to improve specificity. Radioguided surgery, employing tracers like metaiodobenzylguanidine (MIBG), complements fluorescent techniques by allowing for detection of tumors at a greater depth. Dual-labeled agents combining both modalities are under development. Three-dimensional modeling and virtual/augmented reality aid in preoperative planning and intraoperative guidance. The above techniques show great promise to benefit patients with pediatric tumors, and their continued development will almost certainly improve surgical outcomes.

'I cannot accept it' distressing experiences in parents of children diagnosed with cancer: A qualitative study.

To explore the distressing experiences of Chinese parents of children with cancer from the perspective of psychological inflexibility. A qualitative study using a descriptive qualitative approach based on the model of psychological inflexibility was adopted. Individual semi-structured interviews through synchronized online video were conducted with 21 Chinese parents of children with cancer from October 2020 to May 2021. Data were analysed using content analysis. Four themes and 11 subthemes were identified: (i) immersion in struggling and suffering, (ii) avoidance and suppression, (iii) blaming and complaint and (iv) helplessness and worthlessness. Parents were unwilling to accept the diagnosis and witness their children's suffering, trapped in uncontrollable negative emotions and thoughts. Avoiding emotions and socializing, blaming themselves or complaining of injustice were common. They felt helpless towards life and valueless without the child. The research findings provide additional perspectives in understanding the distressing experiences in parents of children with cancer. Overall, the emotional and coping styles indicated the lack of psychological flexibility of parents when facing childhood cancer, which is profoundly influenced by Chinese culture. Healthcare professionals are recommended to provide culturally sensitive strategies or interventions for building psychological flexibility in addressing parental psychological distress. The study provides insights into exploring distressing experiences and reveals the inflexible psychological and behavioural patterns in parents of children with cancer, which could benefit healthcare providers in managing parental psychological distress and helping these parents build flexible coping strategies. The COREQ guideline was followed. No patient or public involvement.

Childhood cancer surgery in low- and middle-income countries.

This report summarizes the status of pediatric surgical oncology services in low- and middle-income countries. Factors such as surgical capacity and enablers, and barriers to providing pediatric surgical oncology services are discussed. A review of the literature was conducted to examine the evidence for the capacity of low- and middle-income countries to provide childhood cancer surgery services, focusing on general surgery. Unpublished, ongoing work and initiatives of international organizations are also described.

A Consensus Statement on the Administration of Systemic Bevacizumab in Patients with Recurrent Respiratory Papillomatosis.

To provide detailed guidance on the administration of systemic bevacizumab in patients with recurrent respiratory papillomatosis (RRP) based on a detailed review of the scientific literature and a consensus of experts with real-world clinical experience. A bevacizumab consensus working group (N = 10) was composed of adult and pediatric otolaryngologists, adult and pediatric oncologists, and a representative from the RRP Foundation (RRPF), all with experience administering systemic bevacizumab in patients with RRP. After extensive review of the medical literature, a modified Delphi method-based survey series was utilized to establish consensus on the following key areas: clinical and patient characteristics ideal for treatment candidacy, patient perspective in treatment decisions, treatment access, initial dosing, monitoring, guidelines for tapering and discontinuation, and reintensifying therapy. Seventy-nine statements were identified across nine critical domains, and 45 reached consensus [clinical benefits of bevacizumab (3), patient and disease characteristics for treatment consideration (7), contraindications for treatment (3), shared decision-making (incorporating the patient perspective) (5), treatment access (3), initial dosing and administration (8), monitoring (7), tapering and discontinuation (6), and reintensification (3)]. This consensus statement provides the necessary guidance for clinicians to initiate systemic administration of bevacizumab and represents a potential paradigm shift toward nonsurgical treatment options for patients with RRP. 5 Laryngoscope, 2024.

Impact of virtual reality on peri-interventional pain, anxiety and distress in a pediatric oncology outpatient clinic: a randomized controlled trial

PurposePain and anxiety-inducing interventions have a major impact on pediatric patients. Pain reduction by virtual reality (VR) during port and vein punctures is well studied. This study investigates peri-interventional reduction of pain, anxiety and distress using VR compared to the standard of care (SOC) in a pediatric oncology outpatient clinic.MethodsIn a randomized, controlled cross-over design, patients aged 6–18 years experience potentially painful interventions accompanied by VR. Observational instruments include NRS, FPS-r, BAADS, mYPAS-SF, PedsQL and SSKJ3-8R. All patients undergo two observations: SOC (A) and VR (B) in a randomized order. In addition, parents and staff are interviewed. Specific conditions for VR in an outpatient clinic setting derived from interprofessional focus group discussion are being explored.ResultsBetween July 2021 and December 2022 57 eligible patients were included and randomized to the orders A/B (n = 28) and B/A (n = 29). Thirty-eight patients completed both observations. Characteristics in both groups did not differ significantly. More than half of the patients had no previous experience with VR, 5% decided to discontinue VR prematurely. Peri-interventional pain, anxiety and distress were significantly reduced by VR compared with SOC. 71% of patients and 76% of parents perceived punctures with VR to be more relaxed than previous ones. 95% of patients perceived fun with VR goggles. Detailed questionnaires on individual stress and anxiety were returned from 26 of 38 patients. Focus group discussion with staff yielded evidence for successful implementation of VR in an outpatient clinic.ConclusionsThe present study shows that VR can be used for peri-interventional reduction of pain, anxiety, and distress in the special environment of a pediatric outpatient clinic. Specific conditions must be met for successful implementation. Further studies are needed to identify particularly susceptible patients and to illuminate alternatives for distraction that are feasible to implement with limited resources.Trial registration number(ClinicalTrials.gov ID): NCT06235723; 01/02/2024; retrospectively registered. This study adheres to the standard checklist of CONSORT guidelines.