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Improving the growth of infants with congenital heart disease using a consensus-based nutritional Pathway-A follow up
Aneurin Young1, Catarina Fandinga2, Cai Davis3
1Department of Neonatal Medicine, Princess Anne Hospital, University Hospital Southampton NHS Foundation Trust, Southampton UK; Southampton NIHR Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK; Faculty of Medicine, University of Southampton, Southampton, UK.
Insights
A new nutrition pathway improved growth in infants with congenital heart disease (CHD) before surgery. This intervention led to better weight gain velocity in the first year of life, potentially reducing later metabolic disease risk.
Area of Science:
- Pediatric Cardiology
- Nutritional Science
- Congenital Abnormalities
Background:
- Congenital Heart Disease (CHD) is the most common congenital abnormality, affecting 9 per 1000 live births.
- Growth failure in infants with CHD is linked to increased mortality risk post-cardiac surgery.
- Optimizing growth in infants with CHD awaiting surgery is crucial for reducing morbidity and improving long-term metabolic health.
Purpose of the Study:
- To evaluate the impact of a consensus-based nutrition pathway implemented in 2017 on growth outcomes in infants with CHD.
- To compare growth in two epochs: pre-pathway (2013-2016) and post-pathway implementation (2017-2023).
Main Methods:
- Growth measures were extracted from electronic patient records and z-scores were calculated.
- SuperImposition by Translation And Rotation (SITAR) models were used to create fitted growth velocity curves for each epoch.
- A cohort of infants with CHD was analyzed across two distinct time periods.
Main Results:
- Infants in the post-pathway group showed significantly better growth outcomes within the first 4 months of life.
- Weight gain velocity was significantly higher in the post-implementation epoch after adjusting for group differences (p=0.01).
- No significant change in overweight or obesity prevalence was observed at later timepoints, suggesting the pathway did not promote obesity.
Conclusions:
- The implemented nutrition pathway was associated with improved growth in infants with CHD during the first year of life compared to previous standard care.
- Achieving normal growth patterns early in life may mitigate the risk of developing metabolic diseases later.
- Further research is needed to fully understand the long-term metabolic implications of improved early growth in this population.
Background & Aims:
Congenital Heart Disease (CHD) is the most common congenital abnormality, affecting 9 per 1000 live births. Advances in surgical techniques have significantly improved survival rates but growth failure is associated with increased risk of mortality post-cardiac surgery. Improving growth amongst infants with CHD whilst awaiting surgery is an important component to reducing morbidity as well as improving longer term metabolic outcomes. A consensus-based nutrition pathway was developed and implemented into a regional paediatric cardiology service in 2017. The aim of this study was to evaluate the impact of the pathway in a larger cohort of infants with CHD in two epochs: pre-nutrition pathway implementation (Jan 2013-Dec 2016) and post-nutrition pathway implementation (Jan 2017-June 2023).
Methods:
Growth measures were extracted from electronic patient records and z-scores were calculated. SuperImposition by Translation And Rotation (SITAR) models were constructed to develop a single fitted curve of growth velocity for each of the two epochs.
Results:
Infants with CHD in the post-implementation group achieved significantly better growth outcomes in the first 4-months of life. In addition, after adjustment for group differences, weight gain velocity was significantly higher in the post-implementation epoch (p = 0.01). There was no detectable change in the prevalence of overweight or obese children at older timepoints, suggesting that the intervention did not promote the development of obesity although further analysis will be required as the cohort gets older.
Conclusion:
A nutrition pathway developed to support growth in infants with CHD before surgery was associated with better growth outcomes during the first year of life compared to an epoch when nutrition support was only given for malnourishment. Achieving normal growth patterns during the first year of life may help to reduce the risk of metabolic disease in later life, although further research will be required to elucidate this.
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