The infant was started on hydrolyzed formula (Elecare) and discharged home with follow-up appointments with a pediatric gastroenterologist and an allergist with a presumed diagnosis of FPIES. At the time of his follow-up, roughly 8 weeks after discharge, he was continuing to do well on Elecare and had not had recurrence of his symptoms, and his weight had returned to the 52nd percentile up from the 6th percentile at his initial presentation (Figure 2).
FPIES, a non-IgE-mediated food allergy, had previously been considered a rare disorder, but due to raised awareness, recent studies have estimated its incidence at up to 0.3% of all newborns [1, 3].
The precise pathogenesis of FPIES has not been clearly defined.
Given that FPIES can present at a very young age, the differential diagnosis for this clinical presentation is varied and includes sepsis, cardiogenic shock, metabolic disorders, and intestinal etiologies.
Treatment of acute FPIES is primarily supportive with fluid resuscitation and close hemodynamic monitoring.
It is thought Max,, who will remain in hospital for the next eight weeks, will grow out of the FPIES disorder, but he might have to live with the feeding pump for the rest of his life.
Donate at www.justgiving.com/yimby/C2CFORMAX/#/ A MYSTERIOUS CONDITION MAX suffers from food protein-induced enterocolitis syndrome, or FPIES.