Rhinovirus (RV)positive bronchiolitis episodes in infancy confer a higher risk to develop asthma in later childhood with associated lung function impairments. We aimed to investigate the association between the type of virus causing a bronchiolitis hospitalization episode and lung ventilation inhomogeneities at preschool age. Infants hospitalized with a clinical diagnosis of moderate (ward admission) or severe (pediatric intensive care ward admission) bronchiolitis were prospectively followed-up at preschool age to assess nitrogen (N2 ) multiple breath washout (MBW).Lung clearance index (LCI),functional residual capacity (FRC), and concentration normalized phase III slope analysis (SnIII ) indices were reported from ≥2 technically acceptable trials. Differences between groups were calculated using logistic and linear regression and adjusted for confounders (sex, age at bronchiolitis admission, height at visit, maternal asthma, and doctor-diagnosed asthma, including interaction terms between the latter three).An interaction term was included in a regression model to test for an interaction between RV bronchiolitis severity and MBW parameters at preschool age. One hundred and thirty-nine subjects attended preschool follow-up, of which 84 out of 103 (82%) performing MBW had technically acceptable data. Children with a history of RV positive bronchiolitis (n = 39) had increased LCI (adjusted β-coefficient [aβ] = 0.33, 95% confidence interval [CI]0.02-0.65, p = 0.040) and conductive airways ventilation inhomogeneity [Scond ] (aβ = 0.016, CI 0.004-0.028, p = 0.011) when compared with those with a RV negative bronchiolitis history (n = 45). In addition, we found a statistical interaction between RV bronchiolitis and bronchiolitis severity strengthening the association with LCI (aβ = 0.93, CI 0.20-1.58, p = 0.006). Children with a history of hospital admission for RV positive bronchiolitis in infancy might be at a higher risk of lung ventilation inhomogeneities at preschool age, arising from the peripheral conducting airways.

BackgroundExhaled nitric oxide is a marker of airway inflammation. Air pollution induces airway inflammation and oxidative stress. Little is known about the impact of air pollution on exhaled nitric oxide in young infants.MethodsThe Breathing for Life Trial recruited pregnant women with asthma into a randomised controlled trial comparing usual clinical care versus inflammometry-guided asthma management in pregnancy. Four hundred fifty-seven infants from the Breathing for Life Trial birth cohort were assessed at six weeks of age. Exhaled nitric oxide was measured in unsedated, sleeping infants. Its association with local mean 24-h and mean seven-day concentrations of ozone, nitric oxide, nitrogen dioxide, carbon monoxide, sulfur dioxide, ammonia, particulate matter less than 10 μm (PM10) and less than 2.5 μm (PM2.5) in diameter was investigated. The air pollutant data were sourced from local monitoring sites of the New South Wales Air Quality Monitoring Network. The association was assessed using a ‘least absolute shrinkage and selection operator’ (LASSO) approach, multivariable regression and Spearman’s rank correlation.ResultsA seasonal variation was evident with higher median exhaled nitric oxide levels (13.6 ppb) in warmer months and lower median exhaled nitric oxide levels (11.0 ppb) in cooler months, P = 0.008. LASSO identified positive associations for exhaled nitric oxide with 24-h mean ammonia, seven-day mean ammonia, seven-day mean PM10, seven-day mean PM2.5, and seven-day mean ozone; and negative associations for eNO with seven-day mean carbon monoxide, 24-h mean nitric oxide and 24-h mean sulfur dioxide, with an R-square of 0.25 for the penalized coefficients. These coefficients selected by LASSO (and confounders) were entered in multivariable regression. The achieved R-square was 0.27.ConclusionIn this cohort of young infants of asthmatic mothers, exhaled nitric oxide showed seasonal variation and an association with local air pollution concentrations.

ObjectivesThe main aim of this study was to describe nutrition provision in Australian and New Zealand (ANZ) pediatric intensive care units (PICUs), including mode of nutrition and adequacy of enteral nutrition (EN) to PICU day 28. Secondary aims were to determine the proportion of children undergoing dietetics assessment, the average time to this intervention, and the methods for estimation of energy and protein requirements. MethodsThis observational study was conducted in all ANZ tertiary-affiliated specialist PICUs. All children ≤18 y of age admitted to the PICU over a 2-wk period and remaining for ≥48 h were included. Data were collected on days 1 to 7, 14, 21, and 28 (unless discharged prior). Data points included oral intake, EN and parenteral nutrition support, estimated energy and protein adequacy, and dietetics assessment details. ResultsWe enrolled 141 children, of which 79 were boys (56%) and 84 were <2 y of age (60%). Thirty children (73%) received solely EN on day 7 with documented energy and protein targets for 22 (73%). Of these children, 14 (64%) received <75% of their estimated requirements. A dietetics assessment was provided to 80 children (57%), and was significantly higher in those remaining in the PICU beyond the median length of stay (41% in patients staying ≤4.6 d versus 72% in those staying >4.6 d; P < 0.001). ConclusionsThis prospective study of nutrition provision across ANZ PICUs identified important areas for improvement, particularly in EN adequacy and nutrition assessment. Further research to optimize nutrition provision in this setting is urgently needed.

The complex treatment for diabetes type 1 (T1D) includes insulin dosing for every meal, which requires education and experience to achieve optimal outcomes. Advanced carbohydrate counting (ACC) is the recommended method. We studied ACC as part of a standard treatment with the aim to explore its associations with glycemic control and empowerment in adolescents and young adults. We used national registry data on glycemic outcomes, a study-specific questionnaire regarding the use of ACC and the Gothenburg Young Persons Empowerment Scale (GYPES) to measure empowerment. A total of 111 participants (10-28 years of age, diabetes duration >9 years, mean HbA1c of 55.4 mmol/mol) answered the questionnaire. We found that most participants (79.3%) who learn ACC, at onset or later, continue to use the method. A higher level of empowerment was associated with lower HbA1c (p = 0.021), making patient empowerment an important factor in achieving optimal glycemic outcomes. No associations were found between ACC and empowerment or glycemic outcomes. A mixed strategy, only using ACC sometimes when insulin dosing for meals, was associated with the lowest empowerment score and highest HbA1c and should warrant extra education and support from the diabetes team to reinforce a dosing strategy.

Busyness as a construct within modern healthcare is complex and multidimensional. To date, few studies have sought to explore how busyness influences family-centred care. This study explored the influence of busyness on the delivery of family-centred care for nurses and parents. Ethnography was selected as the research design. The study site was a metropolitan tertiary hospital inpatient paediatric unit in Sydney, Australia. Semi-structured interview and non-participant observation techniques were used for data collection. Ten paediatric nurses and 10 parents were interviewed and 40 h of non-participant observations were undertaken. The COREQ was used to report the study. The findings are presented as three key themes: (i) 'Supporting family-centred care' in which participants detail beliefs about the nurse-parent relationships and how despite busyness nurses sought out moments to engage with parents; (ii) 'Being present at the bedside' identified the challenges in optimising safety and how parents adapted their way of being and interacting on the unit; and (iii) 'The emotional cost of busyness' and how this influenced nurse-parent interactions, care delivery and family-centred care. The ethnography has given shape to social understandings of busyness, the complexities of paediatric nursing and family-centred care. The culture of care changed in moments of busyness and transformed parent and nursing roles, expectations and collaborative care that at time generated internal emotional conflict and tension. Given the increasing work demands across health systems, new agile ways of working need to ensure maintenance of a family-centred approach. Strategies need to be developed during periods of busyness to better support collaborative connections and the well-being of paediatric nurses and parents. At an organisational level, fostering a positive workplace culture that shares a vision for family-centred care and collaboration is essential. Parents of sick children admitted to an acute paediatric inpatient ward were invited to be a participant in a single interview. Parents were aware of the study through ward advertisement and informal discussions with the researchers or senior clinical staff. Engagement with parents was important as healthcare delivery in paediatrics is focused on the delivery of family-centred care. To minimise the risk of child distress and separation anxiety, children were present during the parent interview. Whist children and young people voices were not silenced during the interview process, for this study the parent's voice remained the focus. While important, due to limited resources, parents were not involved in the design analysis or interpretation of the data or in the preparation of this manuscript. The data that support the findings of this study are available from the corresponding author upon reasonable request.

The main goal of therapeutic management of type 1 Diabetes Mellitus (T1DM) is to maintain optimal glycemic control to prevent acute and long-term diabetes complications and to enable a good quality of life. Postprandial glycemia makes a substantial contribution to overall glycemic control and variability in diabetes and, despite technological advancements in insulin treatments, optimal postprandial glycemia is difficult to achieve. Several factors influence postprandial blood glucose levels in children and adolescents with T1DM, including nutritional habits and adjustment of insulin doses according to meal composition. Additionally, hormone secretion, enteroendocrine axis dysfunction, altered gastrointestinal digestion and absorption, and physical activity play important roles. Meal-time routines, intake of appropriate ratios of macronutrients, and correct adjustment of the insulin dose for the meal composition have positive impacts on postprandial glycemic variability and long-term cardiometabolic health of the individual with T1DM. Further knowledge in the field is necessary for management of all these factors to be part of routine pediatric diabetes education and clinical practice. Thus, the aim of this report is to review the main factors that influence postprandial blood glucose levels and metabolism, focusing on macronutrients and other nutritional and lifestyle factors, to suggest potential targets for improving postprandial glycemia in the management of children and adolescents with T1DM.

Abstract Recent reports have shown that precision medicine can identify new treatment strategies for childhood cancer patients. However, it remains unclear which patients will benefit most from precision-guided treatment (PGT). Here we report 384 consecutive high-risk childhood cancer patients (with an expected cure rate of &lt;30%) who had at least 18 months of follow-up on the ZERO Childhood Cancer Program PRISM trial. A total of 256 (67%) patients received PGT recommendations, of whom 110 (43%) received a recommended treatment. PGT resulted in a 36% objective response rate and improved 2-year progression-free survival compared with standard of care (26% vs. 12%; P=0.049) or targeted agents not guided by molecular findings (26% vs. 5.2%; P=0.003). PGT based on Tier 1 evidence, PGT targeting fusions or commenced prior to disease progression had the greatest clinical benefit. Our data show that PGT informed by comprehensive molecular profiling significantly improves outcomes for children with high-risk cancers.