• Kaiquan Tan, Martin Harazim, Andrew Simpson, Yi Chern Tan, Gunawan Gunawan, Kristy P Robledo, Christina Whitehead, Benjamin Tang, Anthony Mclean, and Marek Nalos.
• Nepean Clinical School, Sydney Medical School, University of Sydney, Sydney, NSW, Australia.
• Crit. Care Med. 2021 Sep 1; 49 (9): 1493-1503.

ObjectivesTo examine the effect of premorbid β-blocker exposure on mortality and organ dysfunction in sepsis.DesignRetrospective observational study.SettingICUs in Australia, the Czech Republic, and the United States.PatientsTotal of 4,086 critical care patients above 18 years old with sepsis between January 2014 and December 2018.InterventionPremorbid beta-blocker exposure.Measurements And Main ResultsOne thousand five hundred fifty-six patients (38%) with premorbid β-blocker exposure were identified. Overall ICU mortality rate was 15.1%. In adjusted models, premorbid β-blocker exposure was associated with decreased ICU (adjusted odds ratio, 0.80; 95% CI, 0.66-0.97; p = 0.025) and hospital (adjusted odds ratio, 0.83; 95% CI, 0.71-0.99; p = 0.033) mortality. The risk reduction in ICU mortality of 16% was significant (hazard ratio, 0.84, 95% CI, 0.71-0.99; p = 0.037). In particular, exposure to noncardioselective β-blocker before septic episode was associated with decreased mortality. Sequential Organ Failure Assessment score analysis showed that premorbid β-blocker exposure had potential benefits in reducing respiratory and neurologic dysfunction.ConclusionsThis study suggests that β-blocker exposure prior to sepsis, especially to noncardioselective β blockers, may be associated with better outcome. The findings suggest prospective evaluation of β-blocker use in the management of sepsis.Copyright © 2021 by the Society of Critical Care Medicine and Wolters Kluwer Health, Inc. All Rights Reserved.

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