Core objective:
Support catch-up growth and prevent complications
Nutritional strategies
1) Breast milk first:
Fortified breast milk: For those with a birth weight of less than 1800g, add human milk fortifier (HMF) to increase the protein content (3.0-4.0g/kg/day) and the content of minerals.
Donated breast milk: If the mother has insufficient lactation, preferentially choose pasteurized donated breast milk.
2) Formula milk selection:
Special formula milk for premature infants: High energy density (80-90kcal/100ml), fortified with calcium (120mg/100ml) and iron (1.8-2.0mg/100ml).
3) Micronutrient supplementation:
Iron supplement: Start 2 weeks after birth, 2mg/kg/day until the corrected age of 1 year;
Vitamin D: 800-1000IU/day in the first 3 months, and then 400IU/day until the age of 2 years.
Stage-based feeding
1) Early stage (from birth to 1 month of corrected age):
Micro-feeding (0.5-1ml/h), gradually transitioning to oral feeding;
Parenteral nutrition support: When unable to tolerate enteral feeding, intravenously supplement glucose, amino acids and fat emulsion.
2) Catch-up period (from 1 to 6 months of corrected age):
Fortified breast milk or transitional formula for premature infants;
Introduction of complementary foods: Add iron-fortified rice flour and minced meat puree at the corrected age of 4-6 months.
Monitoring and contraindications
Regularly evaluate the growth curve (weight, length, head circumference) with the goal of reaching the corrected age;
Avoid regular formula milk and unfortified breast milk (due to insufficient nutritional density).
