Objective: To study the effect of suf®cient energy intake, by means of the protocolized administration of nasogastric tube feeding, on the nutritional status of a child with cancer. Design: A comparative experimental study. Setting: Tertiary care at the Centre for Pediatric Oncology, South East Netherlands, University Hospital, Nijmegen. Subjects: Seven children, newly diagnosed with cancer, were included in the experimental study and all completed the trial period. Fourteen patients were included in the retrospective study. They were randomly chosen from a group of patients previously treated for a malignancy at our department and who had received naso-gastric tube feeding for at least 16 weeks. Intervention: Protocolized (experimental group) vs non-protocolized (retrospective group) administration of naso-gastric tube feeding over a period of 16 weeks. The main difference was the amount of tube feeding administered. In addition to energy from other foods, children in the experimental group received 106 AE 13% of their total daily energy requirements (TDER) by means of tube feeding, whereas children in the retrospective group had received 75 AE 24%. Main outcome measures: Weight as a percentage of weight for height according to the 50th percentile of a healthy reference population ideal weight. Results: Weight, expressed as a percentage of the ideal weight, increased signi®cantly in the experimental group (18.2 AE 8.4; P 0.01) and the retrospective study group (5.2 AE 7.3; P 0.001). However, the increase was statistically signi®cant in favour of the experimental group (P 0.003), in which all the children reached their ideal weight, compared to 21% in the retrospective group. Conclusion: Aggressive protocolized nutritional intervention during the intensive phase of anti-cancer treatment, in the form of naso-gastric tube feeding that provides the child's total daily energy requirements, results in considerable improvement in the nutritional status.

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.

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.

In 32 children with a solid tumor, the association between the change in weight for height, in response to 4 weeks of tube feeding during the intensive phase of treatment, and the occurrence of leukopenia, leukopenic infections, and nonleukopenic infections in a period thereafter (4-10 weeks) was studied. Factors possibly influencing the change in weight for height during the first 4 weeks of tube feeding were also assessed. A statistically significant negative correlation (rho = -0.59; p < .001) was found between the change in z-score of weight for height in response to the first 4 weeks of tube feeding, and the occurrence of nonleukopenic infections between 4 and 10 weeks. A reduced occurrence of nonleukopenic infections resulted in a significant reduction of the number of days of infection-related hospital admission (rho = .45; p = .009), which, besides providing advantages for the patient, also had economical benefits. The change in weight for height in response to tube feeding was mainly influenced by the incidence of therapy-induced vomiting (r = -.45; p = .02) and by the amount of energy provided by tube feeding (r = .47; p = .007). Based on these findings, it is recommended that naso-gastric tube feeding be used in children with a solid tumor during the early intensive phase of treatment, and that one should aim for a considerable increase in weight for height during the first 4 weeks of administration, since this has been shown to reduce the number of nonleukopenic infections in a subsequent period. The increase in weight for height may be improved by providing an optimal antiemetic protocol, which will increase energy uptake, and an energy-enriched formula, which will increase energy intake.

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