FPIES Symptoms & Signs

 

What Does an FPIES Reaction Look Like?

 

Most of the time we think of food allergies as causing reactions right away. However, FPIES related allergic reactions to food usually begin 1-4 hours after the trigger food has been eaten. FPIES symptoms are not what you’d typically associate with a food allergy (hives or other rashes, itchy or swollen mouth, trouble breathing, anaphylaxis). Rather, they are related to the digestive system.

FPIES SYMPTOMS

FPIES SYMPTOMS

Vomiting

Repeated and usually severe, around two hours after the trigger food is eaten (could be one to four hours ). In undiagnosed cases of FPIES, this is often confused with viral infections.

Diarrhea

Not as common as vomiting in acute FPIES: starting around five hours after the trigger food is eaten (could be up to 10 hours). In chronic FPIES, infants can have intermittent, watery diarrhea.

Lethargy

Children may be pale, limp, and less active than usual, due to vomiting.

Dehydration

In severe cases, the vomiting can cause dehydration that may lead to low blood pressure, poor circulation, and/or shock.

Poor Growth

In chronic FPIES, poor nutrition can lead to delayed growth and development.

Some children experience relatively mild symptoms. Others, about 15%, will have extreme reactions requiring emergency treatment.

THE DIFFERENCE BETWEEN ACUTE AND CHRONIC FPIES

THE DIFFERENCE BETWEEN ACUTE AND CHRONIC FPIES

Most of the above symptoms describe acute (sudden) FPIES. Experts now recognize that there can also be chronic (long-term) FPIES. Chronic FPIES is seen in infants on cow milk or soy-based formulas. Their symptoms are more general and harder to relate to feedings. Chronic FPIES usually affects infants younger than 4 months old.

HOW LONG DOES AN FPIES REACTION LAST?

HOW LONG DOES AN FPIES REACTION LAST?

An acute FPIES episode usually lasts no more than 24 hours. Patients typically don't have symptoms between episodes. Chronic FPIES is ongoing and can lead to poor growth.

​Food Protein-induced Enterocolitis Syndrome Products

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