Nutritional support of the pediatric oncology patient

Managing Undernutrition in Pediatric Oncology: A Consensus Statement Developed Using the Delphi Method by the Polish Society for Clinical Nutrition of Children and the Polish Society of Pediatric Oncology and Hematology

"Managing Undernutrition in Pediatric Oncology" is a collaborative consensus statement of the Polish Society for Clinical Nutrition of Children and the Polish Society of Pediatric Oncology and Hematology. The early identification and accurate management of malnutrition in children receiving anticancer treatment are crucial components to integrate into comprehensive medical care. Given the scarcity of high-quality literature on this topic, a consensus statement process was chosen over other approaches, such as guidelines, to provide comprehensive recommendations. Nevertheless, an extensive literature review using the PubMed database was conducted. The following terms, namely pediatric, childhood, cancer, pediatric oncology, malnutrition, undernutrition, refeeding syndrome, nutritional support, and nutrition, were used. The consensus was reached through the Delphi method. Comprehensive recommendations aim to identify malnutrition early in children with cancer and optimize nutritional interventions in this group. The statement underscores the importance of baseline and ongoing assessments of nutritional status and the identification of the risk factors for malnutrition development, and it presents tools that can be used to achieve these goals. This consensus statement establishes a standardized approach to nutritional support, aiming to optimize outcomes in pediatric cancer patients.

Poor diet quality and adverse eating behaviors in young survivors of childhood cancer

BACKGROUND

The long-term impact of childhood cancer treatment on dietary intake is likely to be complex, and the length of time dietary behaviors are affected after childhood cancer treatment is unknown.

AIM

The aim of this study was to determine the diet quality in childhood cancer survivors recently off treatment and explore possible contributing factors that may affect diet quality in this population.

METHODS

Participants were 65 parents and/or carers of childhood cancer survivors (CCS) (aged 2-18 years), recently off treatment, and 81 age-matched controls. Participants completed two self-administered dietary intake and eating behavior questionnaires. Study data were explored to determine between group differences, bivariate analysis using Spearman correlations was used to determine the relationship between diet quality and identified variables, and hierarchical cluster analysis was completed to characterize specific variables into clusters.

RESULTS

One hundred and forty-six parents of children aged 2-18 years completed the study (65 parents of CCS and 81 control). CCS had a significantly poorer diet quality score than the age-matched controls (32.25 vs 34.83, P = 0.028). CCS had significantly higher parent-reported rates of "picky eating" behavior than the control group (2.31 vs 1.91; P = 0.044). Factors such as picky eating, emotional overeating, and body mass index z-score might drive diet quality in survivors.

CONCLUSIONS

CCS were found to have poorer diet quality and more likely to have parents report picky eating behaviors. The outcomes highlighted the need for a tailored intervention aimed at improving healthy eating behaviors in CCS after treatment for cancer.

Body composition of patients with neuroblastoma using computed tomography

BACKGROUND

Computed tomography (CT) is often used to investigate muscle and fat mass in adult patients with cancer. However, this method has rarely been used in the pediatric cancer population. The present retrospective study aimed to investigate changes in body composition using CT during treatment in children with neuroblastoma.

PROCEDURE

CT images of 29 patients with high-risk neuroblastoma were retrospectively analyzed at diagnosis and longitudinally during treatment. The cross-sectional area of skeletal muscle, intermuscular adipose tissue (IMAT), visceral adipose tissue (VAT), and subcutaneous adipose tissue (SAT) and skeletal muscle density at the level of the third lumbar vertebra were examined. To correct for height, cross-sectional areas were divided by height in meters squared. A linear mixed model was estimated to investigate changes in body composition over time.

RESULTS

A small increase in skeletal muscle (p = .029), skeletal muscle density (p = .002), and IMAT (p < .001) was found. Furthermore, a rapid increase in VAT (p < .001) and SAT (p = .001) was seen early during treatment with the highest volumes after six cycles of chemotherapy.

CONCLUSIONS

CT scans obtained during standard care provide insight into the direction and timing of changes in skeletal muscle and different types of adipose tissue in childhood cancer patients. Future research is needed regarding the consequences of the rapid increase of VAT and SAT early during treatment.

Optimization of nutrition support practices early after hematopoietic cell transplantation

Nutrition support is often required during hematopoietic cell transplant (HCT) given the gastrointestinal toxicity that frequently precludes adequate protein-calorie intake. This article reviews the latest evidence for enteral versus parenteral nutrition in the adult and pediatric HCT population and addresses key considerations as well as barriers to implement this in practice. Registered Dietitian Nutritionists are key members of the interdisciplinary team to proactively manage enteral nutrition support to provide timely, adequate protein and calories to help prevent malnutrition, loss of lean body mass, and functional decline as well as provide evidence-based diet recommendations. This article also reviews emerging research supporting the role of luminal nutrients to maintain microbiotal diversity.

Is Neuronal Histamine Signaling Involved in Cancer Cachexia? Implications and Perspectives

In this paper, we present evidence in support of our hypothesis that the neuronal histaminergic system might be involved in cancer cachexia¹. To build our premise, we present the research and the reasonable inferences that can be drawn from it in a section by section approach starting from one of the key issues related to cachexia, increased resting energy expenditure (REE), and progressing to the other, anorexia. Based on an extensive survey of the literature and our own deliberations on the abovementioned topics, we investigate whether histamine signaling might be the mechanism used by a tumor to hijack the body's thermogenic machinery. Our hypothesis in short is that hypothalamic histaminergic neurons are stimulated by inputs from the parasympathetic nervous system (PSNS), which senses tumor traits early in cancer development. Histamine release in the preoptic area of the hypothalamus primarily activates brown adipose tissue (BAT), triggering a highly energy demanding mechanism. Chronic activation of BAT, which, in this context, refers to intermittent and/or low grade activation by the sympathetic nervous system, leads to browning of white adipose tissue and further enhances thermogenic potential. Aberrant histamine signaling not only triggers energy-consuming processes, but also anorexia. Moreover, since functions such as taste, smell, and sleep are governed by discrete structures of the brain, which are targeted by distinct histaminergic neuron populations even relatively minor symptoms of cachexia, such as sleep disturbances and taste and smell distortions, also might be ascribed to aberrant histamine signaling. In late stage cachexia, the sympathetic tone in skeletal muscle breaks down, which we hypothesize might be caused by a reduction in histamine signaling or by the interference of other cachexia related mechanisms. Histamine signaling thus might delineate distinct stages of cachexia progression, with the early phase marked by a PSNS-mediated increase in histamine signaling, increased sympathetic tone and symptomatic adipose tissue depletion, and the late phase characterized by reduced histamine signaling, decreased sympathetic tone and symptomatic muscle wasting. To support our hypothesis, we review the literature from across disciplines and highlight the many commonalities between the mechanisms underlying cancer cachexia and current research findings on the regulation of energy homeostasis (particularly as it relates to hypothalamic histamine signaling). Extrapolating from the current body of knowledge, we develop our hypothetical framework (based on experimentally falsifiable assumptions) about the role of a distinct neuron population in the pathophysiology of cancer cachexia. Our hope is that presenting our ideas will spark discussion about the pathophysiology of cachexia, cancer's devastating and intractable syndrome.

Assessment of Nutritional Status and Malnutrition Risk at Diagnosis and Over a 6-Month Treatment Period in Pediatric Oncology Patients With Hematologic Malignancies and Solid Tumors

In total, 74 pediatric oncology patients with hematologic malignancies (n=56) or solid tumors (n=18) and a median age of 78.5 months were included in this prospective study. The aims were to assess malnutrition risks and nutritional status over a 6-month treatment period measured at regular intervals. The rate of patients with high risk for malnutrition at diagnosis was 28.4% by Screening Tool for Risk of Impaired Nutritional Status and Growth tool and 36.5% by Pediatric Yorkhill Malnutrition Score. Body mass index (BMI) z-scores at diagnosis showed 12.3% undernutrition (<-2 SD) and 6.8% overnutrition (>2 SD), which changed to 6.7% and 11.1% at the sixth month, respectively. Malnutrition (BMI<5th age percentile) was detected in 13.7% at diagnosis. Despite an initial deterioration noted in BMI, BMI for age percentile, and z-scores at month 1 in all malignancy subgroups (at month 3 for acute lymphoblastic leukemia), the scores improved later on. There was an increase in weight from baseline in 88.2% of patients over 6 months. This study revealed a decrease in the prevalence of undernutrition and malnutrition over a 6-month treatment period with improved anthropometrics despite an initial deterioration in all malignancy subgroups and even in patients with high risk for malnutrition at baseline screening. Solid tumors and acute lymphoblastic leukemia seem to be associated with higher likelihood of undernutrition and overnutrition, respectively, during treatment.

Effects of malnutrition on treatment-related morbidity and survival of children with cancer in Nicaragua

BACKGROUND

Most children with cancer live in resource-limited countries where malnutrition is often prevalent. We identified the relationship between malnutrition and treatment-related morbidity (TRM), abandonment of therapy, and survival of children with cancer in Nicaragua to better inform targeted nutritional interventions.

PROCEDURE

We conducted a retrospective review of patients aged 6 months to 18 years with newly diagnosed acute lymphoblastic leukemia, acute myeloid leukemia (AML), Wilms tumor, Hodgkin lymphoma, or Burkitt lymphoma (BL) who were treated between January 1, 2004, and December 31, 2007 at Children's Hospital Manuel de Jesus Rivera in Managua, Nicaragua. Statistical analysis examined the relations among nutritional status and cancer type, risk category, TRM, and event-free survival (EFS).

RESULTS

Sixty-seven percent of patients (189/282) were malnourished at diagnosis. Malnutrition was highest among patients with Wilms tumor (85.7%), BL (75%), and AML (74.3%). A total of 92.2% of patients (225/244) experienced morbidity during the first 90 days. Malnutrition was associated with severe infection (P = 0.033). Severely malnourished patients had ≥grade 3 TRM on more days (P = 0.023) and were more likely to experience severe TRM on >50% of days (P = 0.032; OR, 3.27 [95% CI, 1.05-10.16]). Malnourished patients had inferior median EFS (2.25 vs. 5.58 years; P = 0.049), and abandoned therapy more frequently (P = 0.015).

CONCLUSIONS

In Nicaragua, pediatric oncology patients with malnutrition at diagnosis experienced increased TRM, abandoned therapy more frequently, and had inferior EFS. Standardized nutritional evaluation of patients with newly diagnosed cancer and targeted provision of nutritional support are essential to decrease TRM and improve outcomes.

Surgical Feeding Tubes in Pediatric and Adolescent Cancer Patients: A Single-institution Retrospective Review

The purpose of our study was to evaluate surgical enteric access in pediatric cancer patients to determine factors associated with postoperative complications. We performed a single-institution retrospective review of all patients below 21 years old with a primary cancer diagnosis who underwent surgical procedures for enteral access between 2004 and 2014. Multivariate logistic regression was performed to determine independent predictors of postoperative complications. During the study period, 122 patients had surgically placed feeding tubes, of whom 58% developed ≥1 complication(s) and 16% experienced a major complication. No single factor was significantly associated with developing any complication or major complication. Several trends were noted including increased complications associated with jejunostomy tubes, percutaneous endoscopic gastrostomy tubes, and abdominal radiation. Surgically placed enteric access in pediatric and adolescent cancer patients is associated with an extremely high complication rate emphasizing the importance of careful evaluation of these patients before embarking on surgical feeding access. Future work should evaluate mechanisms to decrease complications and/or explore alternative methods to provide supplemental nutrition in children and adolescents with cancer.

Review of the Effectiveness of Enteral Feeding in Pediatric Oncology Patients

Enteral supplementation for nutritional support in pediatric oncology patients remains nonstandardized across institutions and between providers. Pediatric oncology patients frequently fail to meet their growth curve percentiles, lose weight, and/or are malnourished due to both the oncologic process as well as side effects from chemotherapy and radiation treatments. Methods of increasing weight include enteral feeding (nasogastric, nasoduodenal/jejunal, or gastrostomy), parenteral intravenous feeding, and oral supplementation. Indications for feeding and feeding protocols are highly variable, in part due to parental and familial choices, and in part due to the lack of guidelines available for providers. This article provides a comprehensive literature review of 8 published studies regarding the effectiveness and safety of enteral feeding in maintaining or increasing weight in pediatric oncology patients to help inform practice. The review concludes that enteral feeding in pediatric oncology patients is an effective and safe method to affect weight positively. However, further research is needed for developing treatment guidelines, including establishing a timeline for initiation of feeding, and determining which patients are most likely to benefit from enteral feeding.

A Multidisciplinary Review of Nutrition Considerations in the Pediatric Oncology Population: A Perspective From Children's Oncology Group

Over the past few decades, great progress has been made in the survival rates of childhood cancer. As survival rates have improved, there has been an increased focus on supportive care. Nutrition is a supportive-care modality that has been associated with improved tolerance to chemotherapy, improved survival, increased quality of life, and decreased risk of infection in children undergoing anticancer therapy. Guidelines and assessment criteria have been proposed for the nutrition management of a child with cancer; however, there is no consistent use of criteria among institutions treating children with cancer. This review will present the current evidence and standards of practice incorporating aspects of nutrition, nursing, pharmacology, and psychosocial challenges to consider in the nutrition management of a child with cancer. Recommendations for clinical practice are presented.

Percutaneous Endoscopic Gastrostomy in Children with Malignant Disease

The objective of the study was to assess both the possible complications of percutanous endoscopic gastrostomy (PEG) in pediatric cancer patients and its effect on weight development. The medical records of 18 children with a median age of 2.5 years (range, 0.5–14.2 years) were reviewed. The diagnoses were leukemia, central nervous system tumors, solid tumors, and lymphoma. The indications for PEG were anticipated therapy-related nutritional problems and inadequate food intake, weight loss, swallowing problems in relation to paresis of the pharynx, and relapse of the disease. Ten children received a PEG at treatment start, and eight children received it at a median time of 3.4 months (range, 0.9–27.4 months) after treatment start. The median duration of having a PEG in place was 12.3 months (range, 1.2–24.0 months). At admission the median weight for age expressed as standard deviation (SD) was −0.11 (range, −2.78–2.68). There was a significant ( p = .005) decrease in the median SD from admission until PEG installation. There was also a significant increase in the median SD from the start of PEG use until 1 ( p = .04) and 2 ( p = .039) months after start. The most common complications were episodes of inflammation of the PEG site, which were successfully treated with topically or orally administered antibiotics, and episodes of infection, which required intravenously administered antibiotics. Taking into consideration the medical condition of the children in the study group and the considerable length of time with a PEG in place, we believe that nutrition via PEG in children with cancer has several advantages and is rarely associated with other than minor complications.

Nutritional support in children and young people with cancer undergoing chemotherapy

BACKGROUND

It is well documented that malnutrition is a common complication of paediatric malignancy and its treatment. Malnutrition can often be a consequence of cancer itself or a result of chemotherapy. Nutritional support aims to reverse malnutrition seen at diagnosis, prevent malnutrition associated with treatment and promote weight gain and growth. The most effective and safe forms of nutritional support in children and young people with cancer are not known.

OBJECTIVES

To determine the effects of any form of parenteral (PN) or enteral (EN) nutritional support, excluding vitamin supplementation and micronutrient supplementation, in children and young people with cancer undergoing chemotherapy and to determine the effect of the nutritional content of PN and EN. This is an update of a previous Cochrane review.

SEARCH METHODS

We searched the following databases for the initial review: CENTRAL (The Cochrane Library, Issue 2, 2009), MEDLINE (1950 to 2006), EMBASE (1974 to 2006), CINAHL (1982 to 2006), the National Research Register (2007) and Dissertations & Theses (2007). Experts in the field were also contacted for information on relevant trials. For this update, we searched the same electronic databases from 2006 to September 2013. We also scrutinised the reference lists of included articles to identify additional trials.

SELECTION CRITERIA

Randomised or quasi-randomised controlled trials comparing any form of nutritional support with another, or control, in children or young people with cancer undergoing chemotherapy.

DATA COLLECTION AND ANALYSIS

Two authors independently selected trials. At least two authors independently assessed quality and extracted data. We contacted trialists for missing information.

MAIN RESULTS

The current review included the eight trials from the initial review and six new trials which randomised 595 participants (< 21 years of age) with leukaemias or solid tumours undergoing chemotherapy. The trials were all of low quality with the exception of two of the trials looking at glutamine supplementation. One small trial found that compared to EN, PN significantly increased weight (mean difference (MD) 4.12, 95% CI 1.91 to 6.33), serum albumin levels (MD 0.70, 95% CI 0.14 to 1.26), calorie intake (MD 22.00, 95% CI 5.12 to 38.88) and protein intake (MD 0.80, 95% CI 0.45 to 1.15). One trial comparing peripheral PN and EN with central PN found that mean daily weight gain (MD -27.00, 95% CI -43.32 to -10.68) and energy intake (MD -15.00, 95% CI -26.81 to -3.19) were significantly less for the peripheral PN and EN group, whereas mean change in serum albumin was significantly greater for that group (MD 0.47, 95% CI 0.13 to 0.81, P = 0.008). Another trial with few participants found an increase in mean energy intake (% recommended daily amount) in children fed an energy dense feed compared to a standard calorie feed (MD +28%, 95% CI 17% to 39%). Three studies looked at glutamine supplementation. The evidence suggesting that glutamine reduces severity of mucositis was not statistically significant in two studies (RR 0.64, 95% CI 0.19 to 2.2 and RR 0.85, 95% CI 0.66 to 1.1) and differences in reduction of infection rates were also not significant in two studies (RR 1.0, 95% CI 0.72 to 1.4 and RR 0.98, 95% CI 0.63 to 1.51). Only one study compared olive oil based PN to standard lipid containing PN. Despite similar calorie contents in both feeds, the standard lipid formula lead to greater weight gain (MD -0.34 z-scores, 95% CI -0.68 to 0.00). A single study compared standard EN with fructooligosaccharide containing EN. There was no difference in weight gain between groups (mean difference -0.12, 95% CI -0.57 to 0.33), with adverse effects (nausea) occurring equally between the groups (RR 0.92, 95% CI 0.48 to 1.74).

AUTHORS' CONCLUSIONS

There is limited evidence from individual trials to suggest that PN is more effective than EN in well-nourished children and young people with cancer undergoing chemotherapy. The evidence for other methods of nutritional support remains unclear. Limited evidence suggests an energy dense feed increases mean daily energy intake and has a positive effect on weight gain. Evidence suggesting glutamine supplementation reduces incidence and severity of mucositis, infection rates and length of hospital stay is not statistically significant. Further research, incorporating larger sample sizes and rigorous methodology utilising valid and reliable outcome measures, is essential.

Antioxidant intake in paediatric oncology patients

BACKGROUND & AIMS

Antioxidant intake can affect both free radical and the nutritional status of children receiving cancer treatment. The aim of this study was to investigate whether children with cancer met their antioxidant requirements.

METHODS

A prospective observational study was performed at a single hospital in England from June 2008 to February 2010. Children with a solid tumour, lymphoma or leukaemia were included. Dietary intakes including 3 modes of feeding ('diet alone', 'diet + tube' feeding or 'diet + vitamin-mineral supplementation' (VMS)) were collected with an estimated food record (EFR) 1 and 3 month post-diagnosis. Four and 24-hr food recalls were performed to validate the food records.

RESULTS

Forty two children were included: 57% leukaemia or lymphoma and 43% solid tumours. Sixty seven percent underwent chemotherapy and 33% a combination of therapies. In months 1 and 3, greater numbers of children achieved ≥100% of requirements for 'diet + VMS' (p < 0.05) than for other feeding modes. However, considerable proportions of all feeding groups did not achieve 100% of the Recommended Nutrient Intake (RNI) for vitamin A, C, E, selenium and zinc. This was most marked in the 'diet alone' group. Significant proportions did not achieve the Lower Recommended Nutrient Intake (LRNI) for some antioxidants. The 'diet alone' group had the highest proportion not meeting LRNI for vitamin A (p << 0.001; 1st month) and zinc (p < 0.02; 3rd month).

CONCLUSION

Inadequate antioxidant intake was observed in a significant proportion of cancer patients when feeding was not augmented in any way. More research is required to determine the clinical implications of these findings.

Growth failure and nutrition considerations in chronic childhood wasting diseases

Growth failure is a common problem in many children with chronic diseases. This article is an overview of the most common causes of growth failure/growth retardation that affect children with a number of chronic diseases. We also briefly review the nutrition considerations and treatment goals. Growth failure is multifactorial in children with chronic conditions, including patients with cystic fibrosis, chronic kidney disease, chronic liver disease, congenital heart disease, human immunodeficiency virus, inflammatory bowel disease, short bowel syndrome, and muscular dystrophies. Important contributory factors to growth failure include increased energy needs, increased energy loss, malabsorption, decreased energy intake, anorexia, pain, vomiting, intestinal obstruction, and inflammatory cytokines. Various metabolic and pathologic abnormalities that are characteristic of chronic diseases further lead to significant malnutrition and growth failure. In addition to treating disease-specific abnormalities, treatment should address the energy and protein deficits, including vitamin and mineral supplements to correct deficiencies, correct metabolic and endocrinologic abnormalities, and include long-term monitoring of weight and growth. Individualized, age-appropriate nutrition intervention will minimize the malnutrition and growth failure seen in children with chronic diseases.

Longitudinal nutritional assessment in acute lymphoblastic leukemia during treatment

BACKGROUND

A nutritional assessment of pediatric patients with cancer is important to improve their outcome. The number of longitudinal nutritional studies during treatment, however, is limited. The purpose of this study was to investigate the longitudinal changes in anthropometric measures and serum albumin level during chemotherapy in patients with acute lymphoblastic leukemia (ALL).

METHODS

We retrospectively reviewed the charts of 23 patients (19 boys, four girls) with ALL from April 2007 to March 2010. The median age at diagnosis was 4.5 years. Bodyweight, height, and serum albumin levels were measured at the start and the end point of each chemotherapy phase.

RESULTS

At diagnosis, two patients (8.7%) were underweight and five patients (21.7%) were overweight according to body mass index z-score, while five patients were underweight and three (13.0%) were overweight according to Waterlow score. The prevalence of malnourished patients did not change significantly throughout chemotherapy by either assessment. The absolute scores in either assessment were significantly reduced at the sanctuary treatment phase. Low serum albumin (<3.2 g/dL) was found in two patients at diagnosis. Mean albumin decreased significantly at the induction and the re-induction phases.

CONCLUSIONS

Given that nutritional status under a similar chemotherapeutic regimen as assessed by anthropometric measures and albumin level differed among patients, careful observation of the nutritional status and intervention may be necessary at different phases of chemotherapy.

Does body mass index at diagnosis or weight change during therapy predict toxicity or survival in intermediate risk rhabdomyosarcoma? A report from the Children's Oncology Group Soft Tissue Sarcoma Committee

BACKGROUND

Weight loss prevalence and its impact on toxicities and survival in intermediate risk rhabdomyosarcoma (IRMS) patients are unknown. We evaluated the association between weight change during therapy and number of toxicities, hospital days, infections, and overall survival and between baseline body mass index (BMI) and survival in patients treated on Children's Oncology Group trial D9803.

PROCEDURE

Four hundred sixty-eight IRMS patients age ≥2 and <21 years treated on D9803 had required data. Regression models evaluated association between weight loss from baseline and toxicities, hospital days, infections, and survival. Kaplan-Meier curves and regression models evaluated baseline BMI percentile's association with survival.

RESULTS

Thirty-five percent and 37% of patients had >5% weight loss at 12 and 24 weeks, respectively, with 16% and 19% losing >10% weight respectively. Greater than 10% weight loss at 24 weeks was associated with more toxicities and hospital days during subsequent therapy but not infection rate or survival. Baseline underweight patients (<5th percentile BMI) had borderline inferior survival compared with baseline average weight patients while there was no difference in survival seen between average weight and overweight or obese patients.

CONCLUSIONS

Nearly one in five IRMS patients experienced >10% weight loss on therapy. This was associated with increased toxicity but not decreased survival compared with patients who had less weight loss. Baseline BMI percentile trended toward a significant association with survival. Future studies might investigate nutritional impact on quality of life and if weight loss is preventable by early nutritional intervention.

Malnutrition and obesity in pediatric oncology patients: causes, consequences, and interventions

In children with cancer, suboptimal nutrition states are common consequences of the disease and its treatment. These nutrition states have been attributed to a number of etiologies dependent on the patient's tumor type and treatment, and are associated with increased morbidity and mortality. Interventions vary from psychosocial to pharmacological and surgical management. Further research is necessary to understand the epidemiology and etiology of these nutrition states. Of great importance is the development and implementation of effective interventions to optimize nutritional status among children with cancer during and after therapy.

Nutritional status among pediatric cancer patients: a comparison between hematological malignancies and solid tumors

PURPOSE

This study aimed to compare the nutritional status of pediatric patients with hematological malignancies and solid tumors.

DESIGN AND METHODS

A total of 74 pediatric cancer patients were assessed for anthropometric status, biochemical profiles, and dietary intake.

RESULTS

The prevalence of undernutrition was higher among patients with solid tumors as reflected in their lower dietary intakes of energy and nutrients compared with patients with hematological malignancies.

PRACTICE IMPLICATION

Adequate dietary intake is important for pediatric cancer patients, but nurses need to pay more attention to the diets of patients with solid tumors as compared with those with hematological malignancies.

Activation of thermogenesis in brown adipose tissue and dysregulated lipid metabolism associated with cancer cachexia in mice

Cancer cachexia/anorexia is a complex syndrome that involves profound metabolic imbalances and is directly implicated as a cause of death in at least 20% to 30% of all cancers. Brown adipose tissue (BAT) plays a key role in thermogenesis and energy balance and potentially contributes to the physiologic perturbations associated with cachexia. In this study, we investigated the impact of cachexia-inducing colorectal tumor on BAT in mice. We found that brown adipocytes were smaller and exhibited profound delipidation in cachectic tumor-bearing mice. Diurnal expression profiling of key regulators of lipid accumulation and fatty acid β-oxidation and their corresponding target genes revealed dramatic molecular changes indicative of active BAT. Increased Ucp1, Pbe, and Cpt1α expression at specific points coincided with higher BAT temperatures during the dark cycle, suggestive of a temporal stimulation of thermogenesis in cachexia. These changes persisted when cachectic mice were acclimatized to 28°C confirming inappropriate stimulation of BAT despite thermoneutrality. Evidence of inflammatory signaling also was observed in the BAT as an energetically wasteful and maladaptive response to anorexia during the development of cachexia.

Suplemento artesanal oral: uma proposta para recuperação nutricional de crianças e adolescentes com câncer

Objetivo Avaliar o impacto do suplemento oral artesanal na recuperação do estado nutricional de pacientes com desnutrição leve, grave e com risco nutricional. Métodos Propuseram-se oito receitas de suplementos visando ofertar entre 30,0% e 35,0% do gasto energético total. Os pacientes com desnutrição grave (grupo B) receberam o suplemento oral por duas semanas, e os demais pacientes (grupo A), por quatro semanas. Para a comparação dos resultados obtidos com o emprego do suplemento oral artesanal, foram utilizados dados referentes a um protocolo anterior, com o mesmo desenho, entretanto, com a utilização de suplemento oral industrializado. Resultados O suplemento oral artesanal fica muito aquém no que diz respeito a alguns micronutrientes, entretanto é cinco vezes mais barato do que a preparação com o suplemento oral industrializado. Os pacientes do grupo A com suplemento oral artesanal apresentaram 88,0% de resposta positiva na semana de avaliação, enquanto os com suplemento oral industrializado tiveram 84,0%. No grupo B, foram recuperados 22,0% dos pacientes com suplemento oral artesanal e 25,0% do grupo com suplemento oral industrializado, não apresentando, portanto, diferença significante. Comparando o impacto do industrializado com o do artesanal na prega cutânea tricipital e circunferência do braço, verificou-se que o suplemento oral industrializado no grupo A apresentou melhores resultados que o suplemento oral artesanal, e no grupo B, esse efeito observado na prega cutânea não foi significante (p=0,16). Os consumos de energia e de proteína, assim como a evolução nutricional, foram semelhantes entre suplemento oral industrializado e suplemento oral artesanal. Apenas a composição corpórea no grupo A com suplemento oral industrializado apresentou melhores resultados. Conclusão Os resultados apresentados neste estudo sugerem que o emprego da terapia com suplemento artesanal seja uma opção capaz de auxiliar na recuperação nutricional de pacientes oncológicos e uma opção para populações financeiramente desfavorecidas.

Systemic zinc redistribution and dyshomeostasis in cancer cachexia

Cachexia affects up to two thirds of all cancer patients and is a significant cause of morbidity and mortality. It is a complex metabolic syndrome associated with the underlying illness and characterized by loss of skeletal muscle tissue with or without loss of fat mass. Cachexia's other prominent clinical symptoms include anorexia, systemic inflammation, pediatric growth failure, and hypogonadism. The relationship between the symptoms of cancer cachexia and the underlying illness is unclear, and there is an urgent need for a better understanding of the pathophysiology of this syndrome. Normal Zn metabolism is often disrupted in cancer patients, but the possible effects of systemic Zn dyshomeostasis in cachexia have not been investigated. We propose that the acute phase response can mediate Zn redistribution and accumulation in skeletal muscle tissue and contribute to the activation of the ubiquitin-proteasome pathway that regulates protein catabolism. This chronic redistribution deprives Zn from other tissues and organs and compromises critical physiological functions in the body. The cardinal symptoms of Zn deficiency are anorexia, systemic inflammation, growth failure in children, and hypogonadism. These symptoms also prominently characterize cancer cachexia suggesting that the role of systemic Zn dyshomeostasis in cachexia should be investigated.

Suplementos orais artesanais desenvolvidos para pacientes com câncer: análise descritiva

OBJETIVO: Descrever a elaboração de oito formulações de suplementos artesanais orais desenvolvidos para aumentar o consumo de energia, proteínas e micronutrientes de pacientes com câncer, analisar seu valor nutricional e avaliar a apreciação do sabor, testando dois tipos de lipídeos. MÉTODOS: Os suplementos foram desenvolvidos com base em quatro ingredientes alimentares: leite, ovos, açúcares e óleos para recuperação nutricional. As formulações foram calculadas pelo programa de apoio à nutrição NUTWIN e seu valor nutricional foi comparado às recomendações para pacientes com câncer para macronutrientes e às Ingestões Diárias Recomendadas para micronutrientes. Por meio de degustação, os suplementos foram testados para verificação do sabor quando preparados com óleo ou margarina. RESULTADOS: A quantidade de energia por mililitro variou de 1,35 a 2,17kcal, tendo 39% a 59% de carboidrato, 11% a 13% de proteína e 30% a 49% de lipídeo, fornecendo em média 43% e 77% da recomendação de energia e proteína, respectivamente. Vitaminas C e K, ácido fólico e manganês apresentaram 15% de adequação em relação às recomendações. Com relação ao sabor, 78% dos pacientes que experimentaram com óleo e 85% dos que experimentaram com margarina relataram sabor bom, sem diferença estatística entre os tipos de suplementos. CONCLUSÃO: A avaliação do sabor demonstrou que a maioria dos pacientes considerou o suplemento com sabor bom. Essas taxas foram superiores quando testados com margarina. Os resultados sugerem que o uso de suplementos orais artesanais pode ser uma alternativa viável em situações onde não há recursos suficientes para aquisição dos industrializados.

Nutritional problems in children treated for medulloblastoma: implications for enteral nutrition support

BACKGROUND

The aim of this study was to identify the nature and severity of nutritional problems associated with the current treatment of medulloblastoma and to identify any risk factors for nutritional morbidity during treatment.

PROCEDURE

A multicentre retrospective audit of medical and dietetic notes of 41 children treated for medulloblastoma in three UK paediatric oncology centres was undertaken. Data on nutritional status, nutritional support, mutism, swallowing and common toxicity criteria (CTC) scores for vomiting, constipation and mobility were collected at defined points in treatment from diagnosis until 12 months post-treatment.

RESULTS

Significant problems including weight loss, vomiting and constipation were highlighted early on in treatment. The majority of patients were well nourished at diagnosis with a mean percentage weight: height of 99.8%, however nutritional status started to decline early in treatment during radiotherapy, coinciding with 49% of patients having grade 1 or above CTC score for vomiting and constipation. The decline in nutritional status continued, peaking by course 2 of chemotherapy with a mean weight loss of 8.2% since diagnosis. Proactive supplementary feeding early in treatment by one of the three centres demonstrated a superior nutritional outcome when compared statistically to the two centres that fed only as a response to nutritional decline.

CONCLUSION

The study highlighted significant morbidity associated with the current treatment of medulloblastoma. Findings suggest the need to consider earlier proactive nutritional intervention to prevent nutritional decline during treatment. These early nutritional problems may be related to toxicities of radiotherapy and concomitant vincristine.

Positive impact of blocking tumor necrosis factor alpha on the nutritional status in pediatric Crohn's disease patients

BACKGROUND

TNFalpha seems to contribute to inflammation and malnutrition in Crohn's disease (CD) patients. In CD patients, the comparative effects on nutritional status of infliximab and traditional therapy have not yet been determined. The aim of our study was to assess the effects of infliximab as compared with those of standard therapy on nutritional status, disease activity, resting energy expenditure (REE), and food intake in CD children and adolescents.

METHODS

From September 1999 to September 2005, all CD patients treated with infliximab (group A) were reviewed and matched with CD patients treated with traditional therapy (mesalazine and azathioprine) (group B).

RESULTS

Fourteen CD patients from group A and 14 from group B were included; median interval before follow-up investigation was 10 months. Baseline and final values of weight, height, body mass index (BMI), pediatric CD activity index (pCDAI), REE, and food intake were studied. In treated patients, but not in control group, mean baseline weight (kg) and BMI values, 39.7 +/- 13.1 and 17.9 +/- 3.3, respectively, were significantly lower than their final values 42.6 +/- 13.2 and 18.9 +/- 3.1, and median pCDAI values 23.5 were significantly higher than their final values 10 (P < 0.05). Significant changes in height, REE, and food intake were not found in either group.

CONCLUSIONS

In pediatric CD patients, infliximab seems to impact positively on the nutritional status as demonstrated by the improvement in weight and BMI, but not in linear growth; effects on nutritional status seem to be due to amelioration of disease activity, rather than to REE reduction or food intake increase.

Nutritional status at diagnosis of children with malignancies in Casablanca

INTRODUCTION

Nutritional assessment is an essential component of the initial assessment of children with cancer. Malnutrition may be present at diagnosis due to the effects of the malignancy or, in low income countries (LIC), due to poverty and an inadequate diet.

PURPOSE

The aim of this study is to evaluate the prevalence of malnutrition at diagnosis in children with cancer in Morocco.

PROCEDURE

Nutritional status of 100 children aged less than 18 years with newly diagnosed malignancy between January 2005 and January 2006 was evaluated by anthropometric and biochemical parameters before initiating therapy. We measured weight, height, weight-for-height using z-scores index for children and body mass index for adolescents, triceps skinfold thickness and mid-upper arm circumference, and serum albumin.

RESULTS

A total of 100 patients were included. The mean age was 7 years (range 1 to 18 years). Sixty percent were boys. The diagnosis was: Burkitt lymphoma (n = 19), acute myeloblastic leukaemia (n = 18), acute lymphoblastic leukaemia (n = 14), rhabdomyosarcoma (n = 13), Ewing sarcoma (n = 7), nephroblastoma (n = 6), Hodgkin disease (n = 5), osteosarcoma (n = 5), retinoblastoma (n = 4), neuroblastoma (n = 3), germ cell tumor (n = 3), orbital lymphoma (n = 1), cerebral lymphoma (n = 1), ependymoma (n = 1). Incidence of malnutrition ranged from 20 to 50%, depending upon the measurement used.

CONCLUSION

The prevalence of malnutrition in this study was high, so interventions are being implemented to improve the nutritional status of these patients.

Prevalence of malnutrition in pediatric hospital patients

PURPOSE OF REVIEW

Hospital protein-energy malnutrition and its adverse consequences were already described back in 1980. The purpose of this review is to describe the current prevalence of malnutrition in hospitalized children and to describe current risk groups.

RECENT FINDINGS

Different definitions have been used to describe malnutrition. According to WHO criteria, the SD score with a cutoff of less than -2 should be used to define malnutrition and to compare prevalence data. Using the SD score for weight for height or equivalent criteria, the prevalence of acute malnutrition over the last 10 years in hospitalized children in Germany, France, the UK and the USA varied between 6.1 and 14%, whereas in Turkey up to 32% of patients with malnutrition were reported. Acute malnutrition is still highly prevalent in children with an underlying disease; however, the prevalence rate seems lower in children with cystic fibrosis and malignancies.

SUMMARY

The prevalence of acute malnutrition of children admitted to hospital is still considerably high, but there is a scarcity of data concerning the nutritional status during hospital admission. Screening tools to identify children at risk of developing malnutrition might be helpful.

Nutritional Issues in Adolescents After Bone Marrow Transplant: A Literature Review

Bone marrow transplantation and related complications can cause gastrointestinal (GI) side effects that can lead to poor nutrition, which has been associated with several morbidity and mortality issues. Adolescents require adequate nutrition not only to maintain health but to advance with normal growth and development. This article synthesizes the bone marrow transplant (BMT) literature regarding adolescents' nutritional needs, etiologies of altered oral intake, GI symptoms, nutritional assessments, nutritional interventions, and quality of life associated with poor nutrition. In addition, gaps in knowledge in the literature are identified. To provide effective and thorough care to patients during their BMT recovery, the knowledge base of nutritional and eating issues after transplant needs to become more comprehensive. Nurses play an important role in gathering and reporting clinical information. By anticipating potential risk factors, assessing and identifying symptoms, and initiating appropriate interventions promptly, patients can experience a more positive BMT experience.

Validation of percent body fat indicators in pediatric oncology nutrition assessment

BACKGROUND

Given the high prevalence of malnutrition and potential impact nutritional status can have on a child undergoing treatment for cancer, it is vital that oncology centers regularly assess nutritional status. It is important that simple noninvasive anthropometric nutrition assessment measures correlate to more accurate body composition measures.

OBJECTIVES

The aim of this study was to determine the relationship between anthropometric measures and percent body fat determined via air displacement plethysmography in the children being treated in a pediatric oncology and hematology department.

DESIGN

This cross-sectional study measured height, weight, percent ideal body weight (%IBW), mid arm circumference, triceps skinfolds, and mid upper arm fat area in 23 children. These anthropometric variables were compared against the reference measure of percent body fat via air displacement plethysmography.

RESULTS

Correlational analysis and general linear models showed that there was a significant statistical relationship between percent body fat and body mass index Z score, %IBW, mid arm circumference, triceps skinfolds, and arm fat area.

CONCLUSIONS

Simple anthropometric measurements of %IBW and triceps skinfolds are good indicators of percent body fat and should be incorporated into regular nutrition assessment of the pediatric oncology patient.

Standards of nutritional care in pediatric oncology: results from a nationwide survey on the standards of practice in pediatric oncology. A Children's Oncology Group study

BACKGROUND

The prevalence of malnutrition in children with cancer ranges between 8% and 60%. Malnutrition is strongly associated with the nature of treatment and increases an individual's risk of infection. Clinical studies have suggested that nutrition intervention may decrease toxicity and improve survival in the oncology population. In order to identify the standards of practice in the nutritional management of a child with cancer, we conducted an international survey in institutions that are part of the Children's Oncology Group (COG) consortium.

PROCEDURE

Surveys were submitted to 233 participating COG institutions. We requested one member in three disciplines complete the survey: physician, registered dietitian, and nurse or nurse practitioner. The survey was returned to the nutrition sub-committee of COG.

RESULTS

Fifty-four percent of institutions responded to the survey. We found no consistency in the provision of nutrition services. Assessment of nutritional status does not routinely occur and different indices are employed to indicate the nutrition status of a patient. Institutions rely upon different guidelines when categorizing malnutrition. When nutrition intervention is clinically indicated, a variety of approaches are employed.

CONCLUSIONS

This survey did not find standardized nutrition protocols being employed in the pediatric oncology population. The effect of varied nutrition practices on the quality of life, toxicity, and outcome in children with cancer is unknown. Prior to the initiation of clinical trials, uniform guidelines need to be developed and validated. Future clinical trials need to investigate the most efficacious method of nutrition assessment and intervention and its effect on quality of life, toxicity, and survival in children with cancer.

Risk of ventriculoperitoneal shunt infections due to gastrostomy feeding tube insertion in pediatric patients with brain tumors

OBJECTIVE

To determine the risk of ventriculoperitoneal (VP) shunt infections after percutaneous retrograde gastrostomy feeding tube (GT) placement in children with brain tumors.

PATIENTS AND METHODS

All children (age 0-18 years) with primary brain tumors diagnosed and treated at the Hospital for Sick Children, Toronto, Canada, were subjected to a retrospective analysis. Two groups were identified: the study group included children with a VP shunt and a GT; the control group included children with VP shunts only. Each study patient was matched with 2 controls to compare the rate of infections (cohort comparative study).

RESULTS

There were 1,167 children diagnosed and treated with primary brain tumors during the study period (1988-2003); 174 (15%) had a VP shunt and 23 (2%) children had both, a VP shunt and a GT. In the study group (n=17), GTs were inserted at a median time of 80 days (range 6-204 days) after VP shunts. VP shunt infection rate was 23.5% (4/17) compared to 8.8% (3/34) in the control group (OR 3.18; 95% CI 0.622-16.54, p=0.16). Three (75%) of the infection episodes in the study group presented with an ascending VP shunt infection directly related to the GT insertion or manipulation in the first 6 weeks. These GTs were inserted at 13, 47 and 49 days after VP shunt insertion.

CONCLUSION

Placement of percutaneous retrograde GTs, in the acute phase, in children with brain tumors and VP shunts may increase the risk of ascending meningitis especially if there are early GT-related complications.

High prevalence of malnutrition among patients with solid non-hematological tumors as found by using skinfold and circumference measurements

CONTEXT AND OBJECTIVE

Malnutrition in cancer patients has many causes. Nutritional status is usually assessed from weight/height indices. These present limitations for the nutritional assessment of cancer patients: their weights include tumor mass, and lean mass changes are not reflected in weight/height indices. The objective was to evaluate differences between two anthropometric methods and compare deficits, in non-hematological tumor patients and hematological disease patients.

DESIGN AND SETTING

Cross-sectional study at Instituto de Oncologia Pediátrica, Universidade Federal de São Paulo.

METHODS

Children and adolescents were evaluated between March 1998 and January 2000. Traditional anthropometric measurements were obtained in the first month of treatment (induction therapy), by weight-for-height (W/H) using z-scores index for children and body mass index (BMI) for adolescents. Body composition evaluations consisted of specific anthropometric measurements: triceps skinfold thickness (TSFT), mid-upper arm circumference (MUAC) and arm muscle circumference (AMC). Data were analyzed to compare nutritional assessment methods for diagnosing malnutrition prevalence. The chi-squared test was used for comparative analyses between tumor patients and hematological disease patients.

RESULTS

Analysis was done on 127 patients with complete data. Higher percentages of deficits were found among tumor patients, by W/H z-scores or BMI and by MUAC and AMC. Higher percentages of deficits were shown by TSFT (40.2%) and MUAC (35.4%) than by W/H z-scores or BMI (18.9%).

CONCLUSION

Non-hematological tumor patients presented higher malnutrition prevalence than did hematological disease patients. Body composition measurements by TSFT and MUAC detected more patients with malnutrition than did W/H or BMI.

Diretrizes para terapia nutricional em crianças com câncer em situação crítica

Este trabalho é constituído de uma revisão de conceitos fundamentais e atualizados relacionados à terapia nutricional de crianças com câncer criticamente doentes. O objetivo principal desta revisão é discutir alterações nutricionais e metabólicas decorrentes dessa condição, bem como as indicações, recomendações, contra-indicações e complicações da terapia nutricional (nutrição enteral e parenteral) em pacientes com câncer. Este artigo aborda, de forma objetiva, a aplicação prática de alguns conceitos baseados em evidências científicas, e propõe algumas diretrizes para auxiliar na decisão da terapia nutricional no âmbito da vivência clínica. Conclui-se que há necessidade de maior incentivo ao desenvolvimento da ciência da terapia de suporte, como o tratamento das infecções, a terapia intensiva e a terapia metabólico-nutricional, para que se ampliem as possibilidades de cura de crianças e adolescentes com câncer.

Longitudinal assessment of nutritional status in children treated for acute lymphoblastic leukaemia in Cuba

Malnutrition has a deleterious effect on the results of therapy for malignant diseases in childhood. The impact of radiotherapy on growth is well known but the impact of cytotoxic drugs on nutritional status is more controversial. The purpose of this study was to determine the nutritional status of a cohort of children treated for acute lymphoblastic leukaemia (ALL) in Cuba. The study involved 49 children admitted to a single center and treated with a Berlin-Frankfurt-Munster-based protocol. Nutritional assessment included measurements of height, weight, body mass index and skin-fold thickness, made at diagnosis, after the intensive phase of treatment and at the end of therapy. Z-scores were used for height and comparison of percentiles for the rest of the variables. All the patients were above the third percentile in all the measurements. There were no statistically significant differences between the results at diagnosis, after intensive therapy and at the end of treatment. Although the sample was small, there was no demonstrable effect of chemotherapy on nutritional status in this Cuban paediatric population, in contrast to that reported in children with ALL in other developing countries.

Children, cancer, and nutrition--A dynamic triangle in review

The overall cure rate for cancer in childhood now exceeds 70% and is projected to reach 85% by the year 2010 in industrialized countries. Therefore, major attention is being placed on reducing the side effects of therapy. However, 85% of the world's children live in developing countries, where access to adequate care often is limited and health status frequently is influenced adversely by prevalent infectious diseases and malnutrition. Despite several confounding factors (different definitions of nutritional status, the wide variety of measures used for its assessment, the selection biases by disease and stage, treatment protocols of variable dose intensity and efficacy, small sample sizes of the studies conducted in the last 20 years), it is accepted that the prevalence of malnutrition at diagnosis averages 50% in children with cancer in developing countries; whereas, in industrialized countries, it is related to the type of tumor and the extent of the disease, ranging from < 10% in patients with standard-risk acute lymphoblastic leukemia to 50% in patients with advanced neuroblastoma. The importance of nutritional status in children with cancer is related to its possible influence on the course of the disease and survival. Some authors have described decreased tolerance of chemotherapy associated with altered metabolism of antineoplastic drugs, increased infection rates, and poor clinical outcome in malnourished children. In this article, the authors review methods of nutritional assessment and the pathogenesis of nutritional morbidity in children with cancer as well as correlations of nutritional status with diagnosis, treatment, and outcome.

Nutritional support for children with cancer

Children with cancer are at risk of suffering from under nutrition, which can affect tolerance of therapy and may influence their overall survival. The goals of nutritional support in the cancer patient are to achieve and maintain desirable weight and to prevent or correct nutritional deficiencies. So early identification of patients at high risk for malnutrition is essential. There are different options for nutritional support. Oral feeding, when possible, is the first line. Enteral nutrition should be considered for those patients who cannot consume adequate macronutrients by mouth. Options are nasogastric tube or gastrostomy tube feeding. The advantages of enteral nutrition, when compared with parenteral nutrition, include better maintenance of the structural and functional integrity of the gastrointestinal tract, a decreased risk of bacterial translocation, greater ease and safety of administration, more physiologic and efficient use of nutrient substrates, decreased hepato-biliary complications, improved outcome and cost-effectiveness. Thus, parenteral nutrition should be considered if the gut is not functioning adequately to allow the normal absorption and digestion of nutrients or if enteral nutritional support is not sufficient to meet nutritional needs. Nutritional assessment and support should be integrated into treatment protocols for all children with neoplastic diseases.

Evaluation of dietetic intervention in children with medulloblastoma or supratentorial primitive neuroectodermal tumors

BACKGROUND

Malnutrition is a common complication of cancer treatment; it can affect energy levels and, as a consequence, quality of life. The goal of the current study was to evaluate the effect of dietetic intervention in a cohort of children treated for medulloblastoma and supratentorial primitive neuroectodermal tumors (PNET) over a 10-year period.

METHODS

A retrospective chart review (1992-2002) of newly diagnosed cases of medulloblastoma/supratentorial PNET was performed. Hospital records were reviewed for data, including demographic characteristics, patient heights and weights, and information on treatment modalities and the use of dietetic intervention. Percent changes in body weight were calculated at time points associated with particular stages of treatment or dietetic intervention.

RESULTS

One hundred three of 112 cases were evaluable. Treatment methods included surgery only (7.8%), surgery + radiotherapy (16.5%), surgery + chemotherapy (14.5%), and surgery + radiotherapy + chemotherapy (61.2%). There was no significant change in patient weight due to surgery (median change in body weight [MCBW], -0.35%) or radiotherapy (MCBW, -0.78%). In contrast, children experienced significant weight loss (MCBW, -4.35%; P < 0.0001) 3 months after starting chemotherapy. A dietician saw 53 of the 103 children in the study cohort. There were 84 dietetic interventions (oral, 36%; parenteral, 27%; enteral, 37%) among these 53 patients. Oral diets did not result in weight gain. Parenteral nutrition was associated with significant weight gain at 1 month (MCBW, +2.7%; P = 0.03), but not at 3 months. The use of enteral feeds resulted in significant weight gain at 1 month (MCBW, +4.8%; P = 0.006) and at 3 months (MCBW, +11.8%; P < 0.0001).

CONCLUSIONS

Current multimodality treatment of intracranial PNET results in significant nutritional morbidity, primarily due to the use of intensive chemotherapy regimens. Dietetic input for pediatric patients with medulloblastoma/PNET is essential, and the implementation of enteral feeding in these children can help to reverse their nutritional morbidity.

Using research to change practice: enteral feedings for pediatric oncology patients

This report details a study whose purpose was to show the safety of and describe the clinical and financial outcomes of nasogastric (NG) and nasojejeunal (NJ) tube feedings for nutritional support during and after intensive treatment for cancer. During a 17-month period, NG or NJ tubes were inserted in 25 patients who experienced, or were anticipated to experience, suboptimal nutrition during or after their chemotherapy (n = 14), radiation therapy (n = 2), or chemotherapy plus radiation (n = 5), after bone marrow transplant (n = 2), and as a result of neurological impairment (n = 2). Patient ages ranged from 1 month to 14 years. NG/NJ tubes were used for a total of 1415 patient days (median 40 days). Of those, 756 days occurred in the hospital (median, 18 days) and 659 were outpatient days (median = 12 days). Total parenteral nutrition (TPN) was used during 104 patient days (range, 1 to 35 days), and combination NG/NJ feedings were given with TPN for a total of 101 days. A comparable number of days of TPN therapy for the NG-fed patients would have cost $177,390 (average $135/day), compared with $65,700 (average, $50/day) for enteral feedings, for a savings of $111,690. Ten patients experienced grade 2 to 3 diarrhea and/or vomiting during the study. No untoward outcomes were identified. Enteral feedings were found to be a safe and cost-effective method for providing nutrition to these children with cancer.

Basal metabolic rate in children with a solid tumour

OBJECTIVE

To study the level of and changes in basal metabolic rate (BMR) in children with a solid tumour at diagnosis and during treatment in order to provide a more accurate estimate of energy requirements for nutritional support.

DESIGN

An observational study.

SETTING

Tertiary care at the Centre for Paediatric Oncology, University Hospital Nijmegen.

SUBJECTS

Thirteen patients were recruited from a population of patients visiting the University Hospital Nijmegen for treatment. All patients asked to participate took part in and completed the study.

INTERVENTION

BMR was measured by indirect calorimetry, under stringent, standardised conditions, for 20 min and on three different occasions in all patients. Continuous breath gas analysis using a mouthpiece was performed. Weight, height and skinfold measurements were performed before each measurement.

MAIN OUTCOME MEASURES

BMR was expressed as percentage of the estimated reference value, according to the Schofield formulas based on age, weight and sex, and in kJ (kcal) per kg of fat-free mass.

RESULTS

At diagnosis, the BMR was higher than the estimated reference BMR in all patients and 44% of the patients were considered hypermetabolic. Mean BMR (as percentage of reference) was significantly increased (11.6% (s.d. 6.7%); P=0.001), but decreased during treatment in 12 of the 13 patients (mean decrease 12.7% (s.d. 3.9%); P<0.0001). Furthermore, a significant negative correlation (P=-0.67; P=0.01) was found between the change in BMR and tumour response.

CONCLUSIONS

These data suggest that the BMR of children with a solid tumour is increased at diagnosis and possibly during the first phase of oncologic treatment. This may be important when determining energy requirements for nutritional support.

Parents' Perception of Their Child's Food Intake After the Start of Chemotherapy

Adequate nutrition is an important part of supportive therapy for the pediatric cancer patient. The aim of this study was to assess parents' perceptions of their child's eating pattern after onset of chemotherapy and the strategies they used to cope when eating problems arose. A semistructured interview was performed with parents of 11 consecutively admitted children. The results showed that parents have a realistic perception of their child's food intake and that they are able to recognize reasons for poor food intake that may be unknown to the staff. The individual responses of the parents and the mechanisms of coping were unique for each individual. The responsibility of getting the child to eat was distressing for many parents. The study indicates that parents need continuous support to serve an optimal role in the nutritional care of their child.

Intolerance to an extensively hydrolysed formula mistaken for postoperative diarrhoea in a child with neuroblastoma

BACKGROUND

Persistent diarrhoea has recently been reported as a common problem following surgical resection for advanced abdominal neuroblastoma.

CASE STUDY

A 10-month-old child, who had previously had no nutritional problems whilst undergoing chemotherapy treatment for a stage IV neuroblastoma, developed severe diarrhoea following tumour resection. He required nutritional support and was commenced on a continuous overnight nasogastric feed of a non-milk protein hydrolysate feed (MCT Pepdite 0-2, S.H.S. International Ltd, UK) His diarrhoea persisted and it was assumed that this was a postoperative problem which in time would regress. Two months later the child was admitted with a rectal prolapse, and a colonoscopy and biopsy suggested allergic protocolitis. The diarrhoea resolved rapidly on stopping the feed.

CONCLUSION

Although he was never re-challenged with the non-milk protein hydrolysate, it appears that he had a rare intolerance to an extensively hydrolysed protein formula which was masked by the assumption that his diarrhoea was a postoperative problem.

Nasogastric tube feeding in children with cancer: the effect of two different formulas on weight, body composition, and serum protein concentrations

BACKGROUND

Treatment of cancer cachexia partly involves the administration of adequate amounts of energy. The aim of this study was to assess the tolerance and efficacy of two equal volumes of tube feeding, one with a standard (1 kcal/mL) and one with a high energy density (1.5 kcal/mL), during the intensive phase of treatment.

METHODS

Nutritional status was assessed weekly, in 27 children with a solid tumor, by measuring weight, height, midupper arm circumference, biceps and triceps skinfold, and serum proteins. Tolerance was assessed by recording the occurrence of vomiting and by expressing the administered volume as a percentage of the required volume.

RESULTS

Both formulas were equally well tolerated, leading to a significantly higher energy intake in the energy-enriched formula group. In both formula groups, all anthropometric variables increased significantly (range of mean increase, 5.2% to 25.5%; p < .05) during the first 4 weeks of intervention. Between 4 and 10 weeks, variables continued to increase significantly in the energy-enriched group, resulting in adequate repletion, in contrast to the standard formula group. The concentration of serum proteins, low at initiation of tube feeding, returned to the normal range within 2 to 4 weeks with no significant differences between the two groups.

CONCLUSIONS

The energy-enriched formula was more effective in improving the nutritional status of children with cancer during the intensive phase of treatment than the standard formula. Intensive, protocolized administration of an energy-enriched formula should therefore be initiated as soon as one of the criteria for initiation of tube feeding is met.