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Edad de presentación Afecta principalmente niños entre los 6 meses y 5 años, con pico de presentación en el segundo año de vida.
Principales agentes etiológicos virales 1. Parainfluenza 1 y 3 2. VSR, Adenovirus, influenza, metapneumovirus, coronavirus
Factores de riesgo 1- Antecedente de intubación prolongada en periodo neonatal 2-antecedente de alteraciones en vía aérea superior
Triada sintomática clásica 1- Tos perruna (metálica o bitonal) 2- Disfonía 3- Estridor (inicialmente inspiratorio )
Fase prodrómica Fiebre 2 a 5 días, rinorrea, coriza y cefalea
Created by: laura.jaime
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