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Published on: March 23, 2013
Faster Gastric Emptying Is Unrelated to Feeding Success in Preterm Infants: Randomized Controlled Trial
Maria Elisabetta Baldassarre1, Antonio Di Mauro2, Osvaldo Montagna2
1Neonatology and Neonatal Intensive Care Unit, Department of Biomedical Science and Human Oncology, University of Bari "Aldo Moro", 70124 Bari, Italy. mariellabaldassarre@gmail.com.
Insights
Feeding preterm infants with extensively hydrolyzed protein (EHP) formula, not intact protein premature formula (IPF), was linked to faster gastric emptying. However, faster gastric emptying did not predict successful achievement of full enteral feeding.
Area of Science:
- Neonatal nutrition
- Gastroenterology
- Pediatric clinical trials
Background:
- Optimizing nutritional support is critical for preterm infants.
- Gastric emptying (GE) is a key factor in enteral feeding tolerance.
- The impact of different protein hydrolysates on GE and feeding advancement in preterm infants requires further investigation.
Purpose of the Study:
- To assess the relationship between gastric emptying (GE) time and the duration to achieve full enteral feeding in preterm infants.
- To compare GE times between infants fed intact protein premature formula (IPF) and extensively hydrolyzed protein (EHF) formula.
- To determine if GE time is a reliable predictor of feeding success in this population.
Main Methods:
- A triple-blind, controlled, prospective clinical trial involving preterm infants.
- Gastric emptying time (t1/2) was measured using real-time ultrasonography on Study Day 14.
- Pearson correlation was used to evaluate the association between GE time and achieving full enteral feeding (≥140 mL/kg/day).
Main Results:
- Median GE time was significantly faster in the EHF group compared to the IPF group (p ≤ 0.018).
- Despite faster GE in the EHF group, GE time showed no significant correlation with the achievement of full enteral feeding (r = 0.08; p = 0.547).
Conclusions:
- While EHF formula resulted in faster gastric emptying than IPF, this did not translate to a shorter time to full enteral feeding.
- Gastric emptying time may not be a clinically relevant surrogate marker for assessing feeding tolerance or predicting feeding success in preterm infants.
- Clinical decisions regarding feeding advancement should consider factors beyond GE time.
Objectives:
To evaluate the relationship between gastric emptying (GE) time and days to achievement of full enteral feeding (≥140 mL/kg/day) in preterm infants randomly assigned to receive one of two marketed study formulas for the first 14 feeding days: intact protein premature formula (IPF) or extensively hydrolyzed protein (EHF) formula.
Methods:
In this triple-blind, controlled, prospective, clinical trial, we report GE time (time to half-emptying, t1/2) by real-time ultrasonography on Study Day 14, in preterm infants receiving IPF or EHF formula. The association between GE time and achievement of full enteral feeding was evaluated by Pearson correlation. Per-protocol populations for analysis included participants who (1) completed the study (overall) and (2) who received ≥ 75% study formula intake (mL/kg/day).
Results:
Median GE time at Day 14 was significantly faster for the EHF vs. IPF group overall and in participants who received ≥ 75% study formula intake (p ≤ 0.018). However, we demonstrated GE time had no correlation with the achievement of full enteral feeding (r = 0.08; p = 0.547).
Conclusion:
Feeding IP premature formula vs. EH formula was associated with shorter time to full enteral feeding. However, faster GE time did not predict feeding success and may not be a clinically relevant surrogate for assessing feeding tolerance.
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