Overview
This study aims to estimate short-term and long-term effects of time points to cease parenteral nutrition on very preterm infants, such as growth; to estimate the role of insulin-like growth factor 1 in the growth.
Description
At present, it is unclear when to cease parenteral nutrition, the effects of cessation times on preterm infants' growth, and whether insulin-like growth factor 1 (IGF-1) has a mediation effect in the procedure that nutrients regulate the growth in preterm infants.
Therefore, a prospective cohort study was designed with the aims:
- to estimate the association between the time to cease parenteral nutrition and the growth in very low birth weight;
- to investigate the relationship between nutrient volume in parenteral nutrition and growth in very low birth weight;
- to analyze the IGF-1 mediation effect between nutrient volume and growth regulations.
Eligibility
Inclusion Criteria:
- Infants with a birth weight less than 1500 grams
- Infants admitted within 72 hours after birth
- Infants born from July 1, 2023, to June 30, 2024
- Written informed consent from parents or guardians
Exclusion Criteria:
- Infants with congenital abnormality
- Infants surviving <7 days after birth