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The role of intravenous access during oral food challenges in food protein-induced enterocolitis syndrome.
Allergy and Asthma Proceedings : 2017 November 2
BACKGROUND: Food protein-induced enterocolitis syndrome (FPIES) is a non-immunoglobulin E mediated food hypersensitivity syndrome characterized by profuse vomiting and diarrhea, which leads to lethargy, dehydration, and hypotension. Given the potential severity of reactions, resolution of FPIES is confirmed via oral food challenge (OFC) during which intravenous (IV) access is recommended to facilitate IV fluids (IVF) and steroid therapy. Risk factors for IV treatment are not well characterized.
OBJECTIVES: The objectives of this study were to analyze predictors for IV treatment during OFC in patients with FPIES.
METHODS: A retrospective chart review was conducted of patients with The International Classification of Diseases, Ninth Revision codes 558.3 and 558.9, and with OFC who were seen in an allergy and immunology clinic from January 2000 to October 2015. OFC reaction severity was scored (1, mild; 2, moderate; 3, severe), and demographics, IV treatment frequency, and OFC outcomes were evaluated. The Fisher exact test and Wilcoxon rank sum test statistical analyses were performed.
RESULTS: Of 184 patients, 28 met inclusion criteria, with 39 OFCs performed. The median age of onset of FPIES was 6 months. The median age at OFC was 2.6 years. This was 2.2 years (range, 0.3-8.5 years) from symptom onset. Of 39 OFCs, IV treatment, including IVF and/or steroids, was required in only 7.7%. Thirty-eight OFCs (97.4%) were of equal or lesser severity than historical reactions. The median severity of presenting reaction (3[IV+]:1[IV-]; p = 0.05) was greater in those who required IV treatment. OFCs with IV treatment were in younger patients (15 months [IV+]:32 months [IV-]; p = 0.039) who underwent OFCs earlier relative to the time of diagnosis (8 months [IV+]:28 months [IV-]); p = 0.018).
CONCLUSION: Although FPIES can potentially elicit severe symptomatology, the patients most commonly experienced only vomiting and diarrhea, which often resolved with minimal treatment. Reactions generally did not worsen over time. Fewer than 10% of the patients challenged required IV treatment, all were young and with severe FPIES. It is reasonable to consider age and length of time from historical reactions when evaluating the necessity of IV placement in patients undergoing FPIES OFC.
OBJECTIVES: The objectives of this study were to analyze predictors for IV treatment during OFC in patients with FPIES.
METHODS: A retrospective chart review was conducted of patients with The International Classification of Diseases, Ninth Revision codes 558.3 and 558.9, and with OFC who were seen in an allergy and immunology clinic from January 2000 to October 2015. OFC reaction severity was scored (1, mild; 2, moderate; 3, severe), and demographics, IV treatment frequency, and OFC outcomes were evaluated. The Fisher exact test and Wilcoxon rank sum test statistical analyses were performed.
RESULTS: Of 184 patients, 28 met inclusion criteria, with 39 OFCs performed. The median age of onset of FPIES was 6 months. The median age at OFC was 2.6 years. This was 2.2 years (range, 0.3-8.5 years) from symptom onset. Of 39 OFCs, IV treatment, including IVF and/or steroids, was required in only 7.7%. Thirty-eight OFCs (97.4%) were of equal or lesser severity than historical reactions. The median severity of presenting reaction (3[IV+]:1[IV-]; p = 0.05) was greater in those who required IV treatment. OFCs with IV treatment were in younger patients (15 months [IV+]:32 months [IV-]; p = 0.039) who underwent OFCs earlier relative to the time of diagnosis (8 months [IV+]:28 months [IV-]); p = 0.018).
CONCLUSION: Although FPIES can potentially elicit severe symptomatology, the patients most commonly experienced only vomiting and diarrhea, which often resolved with minimal treatment. Reactions generally did not worsen over time. Fewer than 10% of the patients challenged required IV treatment, all were young and with severe FPIES. It is reasonable to consider age and length of time from historical reactions when evaluating the necessity of IV placement in patients undergoing FPIES OFC.
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