• Emily C Alberto, Elise McKenna, Michael J Amberson, Jun Tashiro, Katie Donnelly, Arunachalam A Thenappan, Peyton E Tempel, Adesh S Ranganna, Susan Keller, Ivan Marsic, Aleksandra Sarcevic, Karen J O'Connell, and Randall S Burd.
• Division of Trauma and Burn Surgery, Children's National Hospital, Washington D.C., United States.
• Injury. 2021 Oct 1; 52 (10): 3166-3172.

IntroductionShock-index (SI) and systolic blood pressure (SBP) are metrics for identifying children and adults with hemodynamic instability following injury. The purpose of this systematic review was to assess the quality of these metrics as predictors of outcomes following pediatric injury.Materials And MethodsWe conducted a literature search in Pubmed, SCOPUS, and CINAHL to identify studies describing the association between shock metrics on the morbidity and mortality of injured children and adolescents. We used the data presented in the studies to calculate the sensitivity and specificity for each metric. This study was registered with Prospero, protocol CRD42020162971.ResultsFifteen articles met the inclusion criteria. seven studies evaluated SI or SIPA score, an age-corrected version of SI, as predictors of outcomes following pediatric trauma, with one study comparing SIPA score and SBP and one study comparing SI and SBP. The remaining eight studies evaluated SBP as the primary indicator of shock. The median sensitivity for predicting mortality and need for blood transfusion was highest for SI, followed by SIPA, and then SBP. The median specificity for predicting these outcomes was highest for SBP, followed by SIPA, and then SI.ConclusionsCommon conclusions were that high SIPA scores were more specific than SI and more sensitive than SBP. SIPA score had better discrimination for severely injured children compared to SI and SBP. An elevated SIPA was associated with a greater need for blood transfusion and higher in-hospital mortality. SIPA is specific enough to exclude most patients who do not require a blood transfusion.Copyright © 2021. Published by Elsevier Ltd.

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