Implementing The Food Ladder For Tolerance Acquisition In A Pediatric Case With Food Protein-Induced Enterocolitis...

Area of Science:

• Pediatric Allergy and Immunology
• Gastroenterology
• Immunology

Background:

• Food protein-induced enterocolitis syndrome (FPIES) is a non-IgE-mediated food allergy common in infants.
• Acute FPIES presents with vomiting, diarrhea, and potentially shock after allergen ingestion.
• Current management relies on strict allergen elimination, impacting nutrition and quality of life.

Purpose of the Study:

• To evaluate the efficacy of a milk ladder approach in inducing tolerance in a patient with non-IgE-mediated FPIES.
• To explore an alternative to prolonged milk elimination diets.

Main Methods:

• A case study of a 5-month-old infant diagnosed with severe FPIES to milk protein via oral food challenge.
• Initial strict milk elimination followed by two failed oral food challenges with unprocessed milk.
• Implementation of a stepwise milk ladder protocol involving extensively baked, fermented, and unprocessed milk products.

Main Results:

• The infant successfully acquired tolerance to milk through the stepwise milk ladder approach.
• Tolerance was achieved sequentially with extensively baked milk (cake), fermented milk (yogurt), and finally unprocessed milk.
• This contrasts with previous failed challenges with unprocessed milk.

Conclusions:

• The milk ladder approach, typically used for IgE-mediated allergies, shows potential for inducing tolerance in non-IgE-mediated FPIES.
• Stepwise reintroduction may prevent prolonged elimination diets, benefiting nutritional status and family well-being.
• This case suggests the milk ladder is a viable strategy for managing FPIES and improving quality of life.