Food Protein-Induced Enterocolitis Syndrome

Area of Science:

• Pediatric Allergy and Immunology
• Gastroenterology
• Cell-Mediated Immunity

Background:

• Food protein-induced enterocolitis syndrome (FPIES) is a non-IgE-mediated food allergy with unclear prevalence and pathophysiology.
• Onset typically occurs in infancy, though seafood-induced FPIES can manifest in adulthood.
• Acute FPIES presents with severe emesis and lethargy hours after ingestion, while chronic FPIES involves prolonged gastrointestinal symptoms and poor growth.

Purpose of the Study:

• To review the current understanding of FPIES, including its clinical manifestations, diagnostic challenges, and prognosis.
• To highlight the need for further research into FPIES pathophysiology, biomarkers, and therapies.

Main Methods:

• Literature review of FPIES, focusing on clinical presentation, diagnosis, triggers, and outcomes.
• Analysis of diagnostic criteria and current management strategies, including physician-supervised food challenges.
• Discussion of existing research gaps and future research directions.

Main Results:

• Common triggers include cow's milk, soy, rice, and oats.
• Diagnosis is based on clinical symptoms, as IgE testing is typically negative.
• FPIES generally has a favorable prognosis, resolving by age 3-5 years, though adult persistence is reported.

Conclusions:

• FPIES diagnosis can be challenging due to atypical presentations and delayed symptom onset.
• There is a critical need for diagnostic biomarkers and therapies to improve FPIES management.
• Further research is essential to elucidate FPIES pathophysiology and enhance patient care.