Are There Any Babies with a Normal GI Tract?

A recent study (S Salvatore et al. J Pediatr 2019; 212: 44-51) examines the role of neonatal antibiotics and prematurity on the development of functional gastrointestinal disorders in the first year of life.

What is most striking, though, in this study is how many of these infants have a GI disorder.

Background: Prospective cohort multicenter study with 934 infants who completed study; n=302 premature, n=320 antibiotic recipients

Key findings:

  • 718 (77%) had at least one functional GI disorder (FGID) based on Rome III criteria, including 47% with colic, 40% with regurgitation, 32% with dyschezia, 27% with constipation, and 4% with functional diarrhea
  • Preterm infants had FGID rate of 86% compared with 73% of full term infants (P=.0001)
  • Use of antibiotics was associated with FGIDs as well, with aRR of 1.16 (P=.001)
  • The prevalence of FGIDs was highest in the first three months of life and then improved markedly by 6 months of age; by 12 months of age, each of the FGIDs was well below 10%.

Limitation: This study relied on parental reports which could overestimate infant’s symptoms.

My take: More than 75% of infants had at least one FGID.

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