Objective: To study the relationship of plasma proadrenomedullin (pro-ADM) and cortisol (Cor) levels with systemic inflammatory response and target organ damage in children with sepsis after burn. Methods: A total of 30 children with sepsis after burn who were treated in the hospital between August 2014 and August 2016 were collected as observation group, and 30 normal children who received vaccination in the hospital during the same period were collected as normal control group. The pro-ADM

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... Cor levels in plasma as well as the levels of inflammatory factors, myocardial injury markers and intestinal barrier function indexes in serum of the two groups were determined. Pearson test was used to assess the correlation of plasma pro-ADM and Cor levels with systemic inflammatory response and target organ damage in patients with sepsis after burn. Results: Plasma pro-ADM and Cor levels in observation group were higher than those in normal control group. Serum inflammatory cytokines IL-1, IL-6, IL-10 and TNF-α levels in observation group were higher than those in normal control group; serum myocardial injury markers CK-MB, cTnⅠ and NT-proBNP levels were higher than those in normal control group; serum intestinal barrier function indexes ET, DAO and D-L levels were higher than those in normal control group. Conclusion: Plasma pro-ADM and Cor levels increase in patients with sepsis after burn, and are highly consistent with systemic inflammatory response and target organ injury.