Nutritional issues in infants with cancer

Recommendations for Nutritional Supplementation in Pediatric Oncology: A Compilation of the Facts

BACKGROUND

As one of the few modifiable risk factors, the importance of dietary patterns for both disease prevention and treatment outcome in pediatric oncology has gained increasing popularity. Malnutrition is associated with lower survival rates, tolerance to treatment, and quality of life. Yet, especially in children with malignancies, nutritional deterioration is common, and pediatric cancer patients often present with inadequate intake of micro- and macronutrients alike. Despite the reported widespread use of dietary supplements, few empirical data provide a basis for clinical recommendations, and evidence for their efficacy is inconsistent. Current literature lacks a systematic approach as to how and which supplements should be recommended for specific patients, types of cancer, or during specific treatments. The aim of this review is to highlight the role of the most frequently used nutrients in pediatric malignant diseases and to give a practical guide based on current scientific evidence.

METHODS

A comprehensive literature search was conducted on PubMed through April 2023 to select meta-analyses, systematic reviews, observational studies, and individual randomized controlled trials (RCTs) of macro- and micronutrient supplementation in pediatric oncology. The search strategy included the following medical subject headings (MeSH) and keywords: "childhood cancer", "pediatric oncology", "nutritional status", "dietary supplements", "vitamins", "micronutrients", "calcium", "magnesium", "vitamin D", "zinc" "glutamine", "selen", and "omega-3 fatty acids". The reference lists of all relevant articles were screened to include potentially pertinent studies.

RESULTS

The present review provides a comprehensive and updated overview of the latest evidence about the role of nutrition and diet in pediatric oncology, also focusing on different nutritional interventions available for the management of the disease. We summarize evidence about the importance of adequate nutrition in childhood cancer and the role of several micronutrients and critically interpret the findings. Possible effects and benefits of supplementation during chemotherapy are discussed, as are strategies for primary and secondary prevention.

CONCLUSIONS

We here describe the obvious benefits of dietary supplementation for childhood cancer. Further large-scale clinical trials are required to verify the impacts of deficiencies and the possible benefits of supplementation and optimal dosages. (337 words).

Trends in age- and sex-adjusted body mass index and the prevalence of malnutrition in children with cancer over 42 months after diagnosis: a single-center cohort study

The adequate nutritional status of pediatric cancer patients is particularly important to enable them to cope with the demands of the disease and its treatment and to maintain normal growth. Malnutrition and obesity have both been associated with reduced survival and increased drug toxicity. We investigated trends in the age- and sex-adjusted body mass index (ISO-BMI) and the prevalence of malnutrition in a Finnish cohort of 139 consecutive children receiving chemotherapy for cancer, with a follow-up period of 42 months after diagnosis. In total, 28% (39/139) of the patients experienced malnutrition (ISO-BMI < 17 or > 10% weight loss), and 12% (16/139) had a nasogastric tube or underwent gastrostomy. Patients with acute or chronic myeloid leukemia (5/10), central nervous system (CNS) tumors (5/13), or solid tumors (13/31) most frequently suffered from malnutrition. There was a significant increase in the ISO-BMI of patients with acute lymphoblastic leukemia (ALL) (+ 2.1 kg/m²) and lymphomas (+ 2.4 kg/m²) during the first 6 months, and the ISO-BMI of patients with ALL remained higher at 42 months compared to baseline (+ 1.9 kg/m²).Conclusion: The cumulative incidence of malnutrition in Finnish pediatric cancer patients is comparable to that reported in other populations. The nutritional status of patients with acute myeloid leukemia, CNS tumors, or solid tumors should be monitored with extra care to facilitate early intervention in the case of impending malnutrition.What is known:• Both malnutrition and obesity are associated with reduced survival and increased drug toxicity in pediatric cancer patients.What is new:• Overall, 28 % of Finnish children receiving chemotherapy for cancer suffer from malnutrition during the first 42 months following the initial cancer diagnosis. • ISO-BMI curves from initial diagnosis to 42 months after diagnosis are provided for patients with different types of cancer.

Clinical outcome after percutaneous endoscopic gastrostomy in children with malignancies

Percutaneous endoscopic gastrostomies (PEG) are little-used in pediatric oncology. We evaluated complications and efficacy of PEGs in children with malignancies in a retrospective case series. Outcome measures were infection and weight gain. Sixteen PEGs were inserted in 14 patients (mean age 10.3 years; SD 5.6). Sixteen wound infections occurred in nine children (3.7 episodes/1,000 days). Mean weight-for-age z-score fell from diagnosis to PEG placement (-0.68 (SD 1.2) to -1.32 (SD 1.26); P < 0.001) but stabilized afterward. Two (12%) were removed early. PEG placement reversed early weight loss and infectious complications did not usually lead to early PEG removal.

Important aspects of nutrition in children with cancer

Adequate nutrition during cancer plays a decisive role in several clinical outcome measures, such as treatment response, quality of life, and cost of care. However, the importance of nutrition in children and young adults with malignancies is still an underestimated topic within pediatric oncology. The importance of our work is to reinforce and indicate that malnutrition in children with cancer should not be accepted at any stage of the disease or tolerated as an inevitable process. Unique to our manuscript is the close collaboration, the exchange of knowledge and expertise between pediatric oncologists and a nutritional specialist, as well as the comprehension of the mechanisms during cancer cachexia and malnutrition. We provide a critical review of the current state of research and new knowledge related to nutritional management in childhood cancer.

Eating experiences of children and adolescents with chemotherapy-related nausea and mucositis

Despite many advances in symptom management, children and adolescents with cancer still have trouble maintaining adequate oral intake during routine chemotherapy treatment. The purpose of this qualitative study was to explore the eating experiences of children and adolescents receiving chemotherapy when they had problems with nausea and mucositis. Eight children and adolescents and their caregivers were interviewed to describe how and what the children and adolescents ate when they were nauseated and/or had a sore mouth. Findings reveal that these children and adolescents all experienced nausea and frequently preferred not to eat during these periods. Eating problems related to mucositis also limited oral intake in this sample. These children and adolescents and their caregivers tried a variety of foods and strategies to maintain intake, including those recommended by health care providers. Prevention and management of nausea remains a challenge for children and adolescents receiving chemotherapy. Health care providers need to offer detailed eating suggestions throughout therapy so that these patients can maintain adequate nutrition and weight for optimal treatment tolerance as well as normal growth and development. Continued research is needed to test the effectiveness of interventions focused on maintaining oral intake during cancer treatment.