Abbreviations: (HbA1c) hemoglobin A1c, (MDI) multiple daily injections, (PG) plasma glucose, (REM) rapid eye movement, (TDD) total daily dose Keywords: basal rate, bolus doses, children, dawn phenomenon, diabetes, insulin pump Abstract Objective:We aimed to investigate the basal rate and bolus doses in children and adolescents at the start of insulin pump therapy and after 1 year of use. Patients and Methods:Case records from 29 children and adolescents were examined. All pumps were started with rapid-acting insulin (Humalog). Patients were aged 13.1 ± 3.9 years, with a diabetes duration of 5.4 ± 4.1 years at pump start. Sixteen pumps were started for high hemoglobin A1c (HbA1c; >8.8%, 73 mmol/mol) and 13 for other reasons. Results:Basal rates declined in both groups by 20% at 3 days after pump start. The bolus doses were reduced by 25-30% when the indication was high HbA1c and by 15% in the others. After 1 year, there was a significant difference in the basal rate between age groups. The 3-9-year-old age group had higher basal rates during the late evening (10:00 PM-12:00 AM), while the 15-21-year-old age group had higher basal rates in the early morning (3:00 AM-7:00 AM). Conclusions:Insulin doses are reduced considerably when starting with a pump in pediatric practice. Younger children needed higher basal rates late in the evening (reversed dawn phenomenon), while older teenagers seem to need an increase in the morning, which may correspond to a true dawn phenomenon.

Background Maintaining a good nutritional status during the hematopoietic cell transplantation (HCT) procedure is challenging in the pediatric population. Methods In a multicentric retrospective study, we compared the outcome of nutritional status and HCT‐related parameters in 227 pediatric patients during and after HCT between 2005 and 2015. 112 patients received a gastrostomy before the start of HCT (GS group), and 115 did not receive a gastrostomy (NGS). Data collection was performed at HCT, 3, 6, and 12 months post‐HCT. Results At time point of HCT the Standard Deviation Score (SDS) of weight was 0.17 in the NGS group, and 0.71 in the GS group (p = .01) Patients in the NGS group lost more weight during the first 3 months after HCT than patients in the GS group. At 12 months, patients in the NGS remained at a lower weight, while patients in the GS group slightly increased their weight. There were no differences between the groups in the incidence of acute graft‐versus‐host‐disease (GvHD), overall survival, and non‐relapse mortality. However, the number of febrile episodes requiring intravenous treatment with antibiotics, was higher in the GS group as compared to the NGS group, during the first 3 months post‐HCT (p < .001). Conclusions Our results indicate that gastrostomy can be utilized in children undergoing HCT without any negative effects on mortality. Therefore, the use of a gastrostomy appears to be a safe option to maintain a good nutritional status during the HCT procedure.

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