|Year : 2015 | Volume
| Issue : 2 | Page : 186-190
Nutritional assessment and intervention in a pediatric oncology unit
Department of Paediatrics, Paediatric Oncology Unit, Chief Dietician, Steve Biko Academic Hospital, Pretoria, South Africa
|Date of Web Publication||5-Feb-2016|
Department of Paediatrics, Paediatric Oncology Unit, Chief Dietician, Steve Biko Academic Hospital, Pretoria
Source of Support: None, Conflict of Interest: None
Nutritional status in children with cancer is an important prognostic factor. Assessment consisting of anthropometry, biochemistry, clinical, and diet that needs to be done on diagnosis and regularly to ensure that patient's nutritional status does not deteriorate. In developing countries, assessment will depend on the availability of all resources, but monitoring is essential. The development of malnutrition during treatment is possible and the reasons are multifactorial. Nutrition plays a deciding role and a key factor in children with cancer and can influence their outcome.
Keywords: Nutritional assessment, nutritional intervention, pediatric oncology
|How to cite this article:|
Schoeman J. Nutritional assessment and intervention in a pediatric oncology unit. Indian J Cancer 2015;52:186-90
| » Introduction|| |
Adequate nutrition in childhood is important to ensure proper neurodevelopment, a functional immune system, quality of life and in case of illness, response to the treatment given. In children with cancer, their nutritional status on diagnosis is very important because it has an impact on their outcome.
Children treated in a pediatric oncology unit's nutritional status need to be assessed on a regular basis to ensure adequate growth, maintenance of nutritional status, and tolerance to treatment. Nutritional assessment involves anthropometry, biochemistry, clinical, and diet history and the following are recommended.
| » Nutritional Assessment|| |
Anthropometry consists of length/height and weight to determine the height for age, weight for age, weight for height (W/H), or body mass index for age (BMI/A). The values are then compared with the age- and gender-applicable WHO tables to determine if a patient is stunted, underweight, and/or wasted as seen in [Table 1].,
In children with cancer, weight can be misleading due to excessive weight gain in leukemia/non-Hodgkins lymphoma patients, consequences of their similar treatment, and the tumor mass or ascites in patients with solid tumors. Arm anthropometry is recommended to prevent deterioration in patients' nutritional status that can be masked by edema and/or the fact that no weight loss occurred.,
Mid-upper arm circumference (MUAC) and triceps skinfold thickness (TSF) are needed to determine patient's fat and muscle stores according to age- and gender-specific reference tables. MUAC can be used as a single marker for nutritional status or in combination with W/H as seen in [Table 2], to determine severe acute malnutrition or acute malnutrition and can be useful in a unit with lack of personnel or nutritional resources, where a single measurement can identify the patients at nutritional risk.,
|Table 2: Measurements to determine malnutrition according to mid-upper arm circumference and weight for height|
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Biochemistry values can be used to determine a patient's nutritional status but vary at every institution, due to availability of tests and cost involved. Expensive tests are not always possible, therefore the dietician needs to make use of values available to evaluate and monitor his/her patients “nutritional status,” for example, protein stores, kidney function, and liver enzymes as seen in [Table 3].,,,
Clinical assessment is an important tool that indicates signs known to malnutrition/nutrition deficiencies in patients as well as physical signs that might influence dietary intake., It also includes patient's history, social-economic, cultural and environmental status of the patient. The side effects of the treatment are part of the clinical assessment and it needs to be done daily while patient on treatment in hospital or seen at the clinic.
Diet history includes surveys of the quantity and frequency of food consumed during the past week at home and/or other hospital. It is also important to help determine the food security at home and the availability of variety of food items. This is one of the challenges experienced in an oncology unit because parents are faced with a diagnosis of cancer and cannot recall what and how much their children ate before admission. One recommendation is to ask a summary what the child ate the past 2 days and then do full assessment a week or two later when parents are more settled in the unit.
| » Nutritional Intervention|| |
Nutritional intervention is the nutritional care plan that consists of the patients' requirements, challenges, possible problems, oral hospital diet and/or enteral feeds, and/or parenteral nutrition patient will receive, as well as homecare. Each child with cancer needs their own nutritional care plan because a patients' diagnosis, treatment modality, and demographics have shown an influence on a patient's risk for malnutrition and adiposity as seen in [Table 4] and therefore depends on their:
|Table 4: Pediatric patients risk for malnutrition according to disease, treatment and demographics|
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- Nutritional status at diagnosis
- Diagnosis that determine the risk for malnutrition
- Age of child
- Oncology treatment plan
- Activity level of child
- Chronic medicine patient receive
- Social-economic status at home.
| » Nutritional Requirements|| |
Over the years, different studies indicated that only children with solid tumors have increased resting energy expenditure (REE) at diagnosis, that normalize after treatment started. Children with leukemia had normal REE.,, It has been well documented that cancer changes the metabolism of patients and they have a risk to become malnourished,, and this led to different opinions about requirements for children with cancer. Suggestions were proposed that patient's nutritional status at diagnosis is used as a guideline to determine which requirements to use. It must also be remembered that if a patient is malnourished, for an increase of 10 g/day in weight patients need 126 kcal/kg and 2.82 g/kg/day protein. At this stage, there is no dedicated formula to determine a patient's nutritional requirements, so different formulas are used such as the American Society of Parenteral and Enteral Nutrition (ASPEN), daily recommended intake, WHO, recommended daily allowance (RDA) with an activity factor and protein-energy malnutrition (PEM). An example of the different formulas available are shown in [Table 5].,,,,
|Table 5: The different formulas available to determine patient's nutritional requirements|
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Mr. SM is a 14-year-old boy with weight 22 kg and height 130 cm; he is severely stunted and wasted. The formulas were used to determine the difference in his nutritional requirements according to each. If taking into account this patient needs to increase his weight, the best option, in this case will properly be ASPEN heavy activity, RDA+ activity factor, or WHO for PEM.,,,,
Possible problems and challenges
About 46% of children diagnosed with cancer are malnourished , and this leads to a change in their body composition  that can influence drug metabolism and increase their risk for infections.
Patients that receive corticosteroids as part of their treatment experience an increase in appetite, especially cravings for fatty food high in sodium that leads to an increase in adipose tissue, but decrease in lean body mass.,, Patients are also scared of vomiting, learn food aversions and therefore their oral intake can decrease, leading to nutritional status that deteriorates. It is also known that parents and/or patients do not always follow nutritional advice given to them by dieticians, doctors, or nursing personnel.
Children get caught up in this situation of going to hospital and receiving treatment and so lose total control of their lives. Often, the only thing they can control is the types of foods they are willing to consume. This may lead them to manipulate their caregivers to give them whatever they want to eat, what is most of the time not healthy food.
| » Monitoring|| |
Monitoring patient's nutritional status is the most important role of a dietician in a unit because if a patient's nutritional status deteriorates, it can influence the outcome. Anthropometry needs to be repeated at least once in 2 weeks while on treatment, either in- or out-patients. Biochemistry needs to be evaluated when repeated for medical purposes and to request that special tests be done if necessary. Clinical assessment is done on a daily basis to assess if patients are vomiting, have diarrhea, are constipated, or have edema. Diet intake should be monitored daily and if a patient is eating <70% of their nutritional requirements, a nasogastric (NG) tube should be inserted for enteral feeds to maintain or improve a patient's nutritional status. A patient on NG-feeds should be monitored daily.
Patients that are well enough can go home between treatments, for a weekend or sometimes a week. On discharge, the patients' nutritional status will be determined and decided if nutritional supplements can be given home or not. Due to budget constraints, not all patients can receive supplements.
There are still a significant number of people suffering from hunger and malnutrition in poor-and middle-income countries; in fact, between 2000 and 2005, the number of undernourished and underweight children in Africa and Asia increased. The possibility of patients coming from very poor social-economic background and food insecurity is therefore high; the Ideal would be to give food parcels home to those patients.
Support groups such as nonprofit companies can play a role here by collecting food parcels for homecare, but there is always the problem that we do not know how food is divided in a family. In HIV patients, food parcels with nutritional supplements were sent home, and the conclusion was that the family benefitted from the food parcels, and the supplements were used for the individual patient. Advice on how to enrich food items with protein and energy must be given as well to ensure adequate nutrient intake at home.
| » Malnutrition|| |
The reason children with cancer become malnourished during treatment is multifactorial. The altered metabolism is due to the oxidation of energy substrates that leads to loss in body protein and nutrient losses that cause gastrointestinal tumor problems. Pain or stress, hormonal and inflammatory components, psychological problems, low physical activity, taste aversions, and chronic medications are all reasons for decreased oral intake and can contribute to the development of malnutrition.,,, In [Table 6], the factors contributing to cancer cachexia are explained in detail.
|Table 6: Factors contributing of cancer cachexia in pediatric oncology patients|
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| » Conclusion|| |
The nutritional status of pediatric oncology patients at diagnosis can have an effect on outcome, therefore it is extremely important that their nutritional status be maintained or improved during treatment. Assessment needs to be done regularly to determine if there were any deterioration in their nutritional status since last assessed and then the proper nutritional intervention is needed. In units with lack of resources, the patients at high risk for malnutrition should be prioritized and assessed at diagnosis and follow-up throughout treatment to ensure well-being of these patients. It is clear that nutritional support should be a major part of supportive care to prevent or reverse malnutrition and increase well-being of children with cancer.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
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