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Development of an Antigen-driven Colitis Model to Study Presentation of Antigens by Antigen Presenting Cells to T Cells
Published on: September 18, 2016
Allergic colitis presenting within the first hours of premature life
Marianne R Faber1, Paul Rieu, Ben A Semmekrot
1Department of Paediatrics, University Medical Centre, St Radboud, Nijmegen, The Netherlands.
Insights
Cow's milk-induced allergic colitis can manifest in premature infants shortly after birth, even after the first feeding. This condition, possibly due to intrauterine sensitization, requires consideration in diagnosing rectal blood loss in neonates.
Area of Science:
- Neonatal Medicine
- Allergology
- Gastroenterology
Background:
- Cow's milk allergy is a common concern in infants.
- Rectal blood loss in neonates necessitates a thorough differential diagnosis.
Observation:
- A premature infant presented with rectal blood loss hours after initial formula feeding.
- Symptoms resolved upon feeding cessation and recurred upon reintroduction.
- Necrotizing enterocolitis was ruled out.
Findings:
- Initial trials with casein-based protein hydrolysate were ineffective.
- Laboratory tests confirmed cow's milk allergy.
- Symptoms resolved exclusively with an amino acid-based formula, confirming cow's milk-induced allergic colitis.
Implications:
- This case highlights cow's milk-induced allergic colitis in a premature infant presenting within hours of birth.
- Intrauterine sensitization is a likely mechanism, though further research is needed.
- Cow's milk-induced allergic colitis should be considered in the differential diagnosis of neonatal rectal bleeding.
Unlabelled:
A prematurely born infant developed rectal blood loss several hours after birth, after his first formula feeding. Discontinuing the feeding resolved symptoms, but after resuming feeding rectal blood loss reappeared. There were no signs of necrotizing enterocolitis. Suspecting cow's milk allergy, the feeding was changed to a casein-based protein hydrolysate, without effect. Meanwhile, laboratory tests indicated cow's milk allergy. Symptoms only resolved after introducing an amino acid-based formula supporting a definite diagnosis of cow's milk-induced allergic colitis. This is the first description of a premature infant with symptoms of allergic colitis, appearing within hours after birth, suggestive of intrauterine sensitization. The exact mechanisms of sensitization remain obscure.
Conclusion:
Cow's milk-induced allergic colitis can occur after the first feed, even in a prematurely born neonate. This is most probably due to intrauterine sensitization, and should be included in the differential diagnosis of rectal blood loss.
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