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  • Title: Development and Evaluation of Modified Criteria for Infant and Toddler Anaphylaxis.
    Author: Handorf A, Roy IR, Cohen A, Camargo CA, Dribin TE, Pistiner M.
    Journal: J Allergy Clin Immunol Pract; 2024 Aug; 12(8):2026-2034.e2. PubMed ID: 38777125.
    Abstract:
    BACKGROUND: Current clinical criteria for identifying anaphylaxis do not account for unique aspects of infant anaphylaxis presentation and have not been validated in patients younger than 2 years of age. This may contribute to under recognition and is thus an unmet need. OBJECTIVE: To demonstrate age-specific signs and symptoms that more accurately identify anaphylaxis in young children and to develop and compare modified criteria for "likely anaphylaxis" against the widely used 2006 National Institute of Allergy and Infectious Diseases/Food Allergy and Anaphylaxis Network (NIAID/FAAN) criteria. METHODS: Retrospective chart review of 337 clinical encounters presenting with suspected allergic or anaphylactic reactions to a pediatric emergency department. Modified criteria for likely anaphylaxis were developed and evaluated against the NIAID/FAAN criteria. RESULTS: The study population included 33% infants (age < 12 mo), 39% toddlers (age 12 mo to < 36 mo), and 29% children (age ≥ 36 mo). The NIAID/FAAN criteria captured 85% of all patient encounters in the study and the modified criteria captured 98% (P < .001). Compared with NIAID/FAAN criteria, modified criteria had 22.8% improved performance among infants (p < .001) and 10.3% improved performance among toddlers (P = .04). CONCLUSIONS: We developed modified anaphylaxis clinical criteria that incorporated symptoms specific to infants and young children. The modified criteria increased identification of anaphylaxis in infants and potentially toddlers. Future research is needed to validate our findings on a larger cohort.
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