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Specific formulas for preterm infants, how and when
Italian Journal of Pediatrics volume 41, Article number: A46 (2015)
All kinds of breast milk (fresh by own mother or pastourized by donor) for preterm should be fortified, to gain the recommended requirements.
In case of its absence the only alternative is represented by the formulas for preterm infants (PTF).
A study compared the use of a soy-based formula (with calcium, phosphorus and vitamin D), with a PTF. Infants taking soy showed lower growth, levels of protein and albumin. ESPGHAN in 2006 concluded that soy-based formulas should not be used in premature infants.
The use of hydrolyzed formulas has not shown a preventive role on cow's milk protein allergy, it has proven helpful in improving food tolerance (acceleration of the intestinal transit time and faster achievement of full enteral feeding), but it has a reduced nutritional value, (especially protein intake)[7–11].
A recent study evaluated the usefulness of a thickened formula in reducing apnea of prematurity GERD-related. The authors conclude that these formulas are not effective in the reduced number of apneas GERD-related.
In recent reviews post-discharge formulas does not seem to provide benefits, especially for the heterogeneity of the studies[3, 13]. They may be useful for infants with GA <33 weeks, particularly those <30 weeks, with growth at discharge below the 10th percentile (the ESPGHAN recommended their use up to 40 weeks, and for a further 12 weeks if necessary) .
Studies about GOS and FOS showed an increase of bifidobacteria in the stool, a reduction in their viscosity and an acceleration of intestinal transit time, resulting in an easier achievement of full enteral feeding[14, 15]. It is also assumed a role in the prevention of NEC and LOS. Even though they have proven their beneficial role, further studies are needed to establish the type and dose.
Several RCTs and recent reviews have shown a benefit of prebiotics in reducing NEC andin the achievement of full enteral feeding[17–19]. Further studies are needed to establish dose, strains and routes of administration.
The available data do not allow to recommend formula supplementation with these substances with functional properties.
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Zuppa, A.A., Catenazzi, P., Riccardi, R. et al. Specific formulas for preterm infants, how and when. Ital J Pediatr 41, A46 (2015). https://doi.org/10.1186/1824-7288-41-S1-A46
- Preterm Infant
- Intestinal Transit Time
- Lactase Activity
- Food Tolerance