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Probiotics promoted head growth in extremely low birthweight infants in a double-blind placebo-controlled trial
Erik Wejryd1, Giovanna Marchini2, Veronica Frimmel3
1Department of Clinical and Experimental Medicine and Department of Pediatrics, Linköping University, Linköping, Sweden.
Insights
Oral supplementation with Lactobacillus reuteri (L. reuteri) did not improve feeding tolerance in extremely low birthweight (ELBW) infants. However, L. reuteri improved head growth rates in these vulnerable infants.
Area of Science:
- Neonatal Medicine
- Microbiology
- Pediatric Nutrition
Background:
- Extremely low birthweight (ELBW) infants face challenges with enteral feeding tolerance and growth.
- Probiotic supplementation is explored as a strategy to improve outcomes in ELBW infants.
Purpose of the Study:
- To evaluate the efficacy of oral Lactobacillus reuteri DSM 17938 supplementation.
- To determine its impact on enteral feeding tolerance and growth rates in ELBW infants.
Main Methods:
- A randomized, double-blind, placebo-controlled trial.
- 134 ELBW infants (<1000 g) received daily L. reuteri (1.25 × 10^8 bacteria/day) or placebo.
- Outcomes assessed included feeding tolerance and growth rate (z-score development) until 36 weeks gestational age.
Main Results:
- Feeding tolerance and time to full enteral feeds were similar between the L. reuteri and placebo groups (15 days).
- Head circumference z-score decreased less in the L. reuteri group (-1.2 SD) compared to placebo (-1.7 SD; p = 0.001).
- Other growth parameters did not differ significantly between groups.
Conclusions:
- Lactobacillus reuteri supplementation did not enhance enteral feeding tolerance in ELBW infants.
- L. reuteri supplementation was associated with improved head growth during the first month of life in ELBW infants.
Aim:
This study evaluated if oral supplementation with the probiotic bacterium Lactobacillus reuteri DSM 17938 improved enteral feeding tolerance and growth rates in extremely low birthweight (ELBW) infants.
Method:
A randomised, double-blind, placebo-controlled trial comprising 134 ELBW (<1000 g) infants born before gestational week 28 + 0. Daily supplementation of L. reuteri (1.25 × 108 bacteria/day) or placebo started within 3 days and continued until gestational week 36 + 0. Primary outcome was feeding tolerance and secondary outcome growth rate calculated as z-score development.
Results:
Feeding tolerance was similar in the probiotic and placebo group. Time to full enteral feeds was 15 days in both groups. The z-score of the head circumference decreased in both groups from birth to day 28 of life, but it decreased less in the L. reuteri group compared to the placebo group: -1.2 SD (95% CI: -1.4 to -1.0) versus -1.7 SD (95% CI: -2.0 to -1.5; p = 0.001). Other growth parameters were similar in the study groups.
Conclusion:
Lactobacillus reuteri did not reduce time to reach full enteral feeds in ELBW infants. The L. reuteri supplemented infants, however, had a better growth rate of the head during the first month of life.
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