RT Journal Article T1 Risk Factors for Severe Anaphylaxis in Children A1 Olabarri, Mikel A1 Vázquez López, Paula A1 González Posada, Aranzazu A1 Sanz, Nuria A1 González Peris, Sebastià A1 Diez, Nuria A1 Vinuesa, Ana A1 Martínez Indart, Lorea A1 Benito, Javier A1 Mintegi, Santiago AB Objective: To identify risk factors associated with severe anaphylaxis in children.Study design: We carried out a multicenter prospective observational study including children less than 18 years old diagnosed with anaphylaxis in 7 Spanish pediatric emergency departments (EDs) between May 2016 and April 2018. Children were considered to have severe anaphylaxis if they met one or more of the following criteria: requirement for 2 or more doses of epinephrine, clinically important biphasic reaction, endotracheal intubation, intensive care unit admission, and/or death.Results: We included 453 episodes of anaphylaxis. Of these, 61 were classified as severe anaphylaxis (13.5%, 95% CI [10.6-16.9]): 53 (11.7%) required more than 1 dose of epinephrine, and there were 14 (3.1%) cases of clinically important biphasic reactions, 2 (0.4%) intubations in the ED, and 6 (1.3%) admissions to the intensive care unit. No patients died. In the multivariable regression, we identified 5 independent risk factors for severe anaphylaxis: history of asthma (P = .002; OR 2.705, 95% CI [1.431-5.113]), onset of the symptoms less than 5 minutes after the allergen exposure (P = .002; OR 2.619, 95% CI [1.410-4.866]), non-well appearance (P = .005; OR 2.973, 95% CI [1.380-6.405]), tachycardia (P = .014; OR 2.339, 95% CI [1.191-4.959]), and hypotension (P = .036; OR 3.725, 95% CI [1.087-12.762]).Conclusions: Childhood anaphylaxis is usually well controlled in the ED. Children with a history of asthma, rapid onset of the symptoms, who are non-well appearing, or have tachycardia or hypotension upon arrival to the ED are more likely to have severe episodes. PB Elsevier SN 0022-3476 YR 2020 FD 2020-10-02 LK https://hdl.handle.net/20.500.14352/116168 UL https://hdl.handle.net/20.500.14352/116168 LA eng NO Olabarri M, Vazquez P, Gonzalez-Posada A, Sanz N, Gonzalez-Peris S, Diez N, Vinuesa A, Martinez-Indart L, Benito J, Mintegi S, Risk Factors for Severe Anaphylaxis in Children, The Journal of Pediatrics (2020), doi: https://doi.org/10.1016/j.jpeds.2020.06.021. DS Docta Complutense RD 13 abr 2025