• Namita Jayaprakash, Ognjen Gajic, Ryan D Frank, and Nathan Smischney.
• Department of Emergency Medicine and Division of Pulmonary and Critical Care, Henry Ford Hospital, 2799 W Grand Blvd, Detroit, MI 48202, United States. Electronic address: namita.njayapr1@hfhs.org.
• J Crit Care. 2018 Feb 1; 43: 30-35.

PurposeThe aim of this study was to explore the association of an elevated modified shock index (MSI) in sepsis and myocardial dysfunction.MethodsThis single center exploratory retrospective cohort study was conducted at Mayo Clinic from 2011 to 2014. It includes adults admitted to the medical intensive care unit with severe sepsis or septic shock. The time MSI>1.3, area under the curve, in the first 6h was assessed using logistic regression for primary outcomes of myocardial dysfunction and depression and secondary outcomes including mortality and SOFA score.ResultsOverall 578 individuals met inclusion criteria, 169 (29%) developed myocardial dysfunction and 23 (4%) myocardial depression. Adjusted for age, gender, Charlson score, and baseline APACHE 3 score, area MSI>1.3 was associated with increased odds of myocardial dysfunction (OR 1.10, 95% CI 1.00-1.21; p=0.058) and depression (OR 1.28, 95% CI 1.07-1.53; p=0.007). Associations were also seen with ICU mortality (OR 1.17, 95% CI 1.04-1.32; p=0.011), hospital mortality (OR 1.13, 95% CI 1.02-1.25; p=0.025) and SOFA score.ConclusionElevated modified shock index during early sepsis is associated with the development of myocardial dysfunction and depression, SOFA score and mortality.Copyright © 2017 Elsevier Inc. All rights reserved.

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