[Experience in food protein-induced enterocolitis syndrome in a paediatric allergy clinic]

Food Protein-Induced Enterocolitis Syndrome (FPIES) is a gastrointestinal syndrome due to a non-IgE mediated food hypersensitivity.. The most common triggers are cow's milk and soy. Fish is one of the most frequently reported causes in Spain. The objective of this study is to describe the clinical characteristics of patients diagnosed with (FPIES) in a Paediatric Allergy Clinic.

A retrospective descriptive study was carried out by reviewing medical records of patients diagnosed with FPIES in the Paediatric Allergy Unit of the Miguel Servet Children's Hospital from the years 2007 to 2017.

A total of 135 patients were diagnosed during the study period, of whom 45% were male and 55% were female. The mean age at diagnosis was 11±1.5 months and the mean age of improvement was 2 years and 6 months±2.5 years (n=83). A personal history of atopy was observed in 31.9%. The main trigger foods were: white fish (41.4%), cow's milk (25.1%), and egg (15.5%). A conversion to IgE-mediated allergy was seen in 4.4% of patients. There was vomiting in 81.5% of the cases, with a mean of 1.75±1.1hours of latency, as well as diarrhoea in 41.5%, with a mean of 7.86±15.16hours of latency, and decline in 30.4% with a mean latency of 3.81±11.57hours.

In our series, the most frequent trigger of the FPIES was fish. It was manifested mainly by late vomiting and a tolerance was reached mostly at 2 years 6 months.