Different clinical manifestation of cow's milk allergy in two preterm twins newborns

Caterina Coviello1, Dhyana Chiara Rodriquez, Sara Cecchi

  • 1Department of Pediatrics, Obstetrics and Reproductive Medicine, Neonatal Pediatrics Section, University Hospital of Siena, Italy.

Insights

Cow's milk allergy (CMA) affects 2-7% of infants. This study highlights two preterm twins with CMA presenting with different gastrointestinal issues, including NEC-like symptoms, emphasizing early diagnosis and varied clinical presentations.

Area of Science:

  • Pediatrics
  • Allergy and Immunology
  • Neonatology

Background:

  • Cow's milk protein allergy (CMA) incidence is rising in newborns, including premature infants.
  • Adverse reactions to cow's milk affect 2-7% of infants within their first year.
  • Early-onset CMA poses diagnostic challenges in the neonatal population.

Observation:

  • Two cases of early-onset CMA in preterm twins are presented.
  • One twin experienced recurrent proctocolitis, while the other had two necrotizing enterocolitis (NEC)-like episodes.
  • Clinical presentations varied significantly between the twins despite the same underlying condition.

Findings:

  • The cases illustrate diverse clinical manifestations of cow's milk protein allergy.
  • Recurrent enterocolitis episodes were associated with increasing systemic eosinophilia.
  • Symptoms clinically and radiologically mimicked NEC, complicating diagnosis.

Implications:

  • Highlights the importance of considering CMA in preterm infants with gastrointestinal distress.
  • Suggests eosinophilia as a potential marker for CMA in this population.
  • Underscores the need for heightened awareness of varied CMA presentations mimicking surgical emergencies like NEC.

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