• Am. J. Med. · Aug 2023

    First sampled high-sensitive cardiac troponin T is associated with one-year mortality in sepsis patients and 30-365-day mortality in sepsis survivors.

    • Samantha Lörstad, Shajan Shekarestan, Tomas Jernberg, Sara Tehrani, Per Åstrand, Patrik Gille-Johnson, and Jonas Persson.
    • Division of Internal Medicine and Infectious Diseases, Department of Clinical Sciences, Karolinska Institutet, Danderyd University Hospital, Stockholm, Sweden. Electronic address: samantha.rutherford.lorstad@ki.se.
    • Am. J. Med. 2023 Aug 1; 136 (8): 814823.e8814-823.e8.

    BackgroundPrevious studies using cardiac troponin levels to investigate the relationship between myocardial injury and mortality in sepsis patients have been conflicting. Our aim was to investigate the relationship between plasma high-sensitive cardiac troponin T (hs-cTnT) level and 30-day and 1-year mortality in sepsis patients and 30- to 365-day mortality in sepsis survivors.MethodsSepsis patients requiring vasopressor support and admitted to our institution between 2012 and 2021 (n = 586) were included in this retrospective cohort study. Elevated hs-cTnT values (≥15 ng/L) were divided into quartiles (Q): Q1 15-35 ng/L; Q2 36-61 ng/L; Q3 62-125 ng/L; Q4 126-8630 ng/L. Stratified Kaplan-Meier curves and multivariable Cox regression were used for survival analyses.ResultsFirst sampled hs-cTnT was elevated in 529 (90%) patients. One-year mortality was 45% (n = 264). Increasing level of hs-cTnT was independently associated with higher adjusted hazard ratios (HR) for 1-year mortality compared with normal levels: Q1 HR 2.9 (95% confidence interval [CI], 1.03-8.1); Q2 HR 3.5 (95% CI, 1.2-9.8); Q3 HR 4.8 (95% CI, 1.7-13.4); Q4 HR 5.7 (95% CI, 2.1-16). In acute phase survivors, first sampled hs-cTnT was an independent predictor of 30- to 365-day mortality (HR 1.3; 95% CI, 1.1-1.6 per loge hs-cTnT).ConclusionsFirst sampled plasma hs-cTnT in critically ill sepsis patients was independently associated with 30-day and 1-year mortality. Importantly, first sampled hs-cTnT was associated with mortality during the convalescence phase (30- to 365-day) and could be a feasible marker to identify acute phase survivors at high risk of death.Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.

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