Sanjurjo-Jimenez I, Menéndez Hernando C, Hidalgo Montes I, Chacón Aguilar R, González González C, López Carnero J, Moreno-Novillo R, Pérez-Moneo B. Neonatal metabolic acidosis caused by food proteininduced enterocolitis syndrome: a case report.
ARCH ARGENT PEDIATR 2023;
121:e202102482. [PMID:
36194678 DOI:
10.5546/aap.2021-02482.eng]
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Abstract
Food protein-induced enterocolitis syndrome (FPIES) is a non-IgE mediated allergic reaction with gastrointestinal symptoms, such as vomiting and diarrhea. FPIES diagnosis is based on clinical criteria and on a food challenge test. It is an unknown disease in neonatal units due to its nonspecific symptoms in newborn infants. An elevated methemoglobin level is a simple way to approach diagnosis. Here we describe a clinical case of a newborn admitted to the emergency department because of dehydration, lethargy, vomiting, diarrhea, severe metabolic acidosis, and a high methemoglobin level. Clinical improvement and complete recovery was achieved after initiation of elemental formula. The diagnostic suspicion was confirmed after a positive challenge test.
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