• Critical care medicine · Oct 2024

    The Association Between Elevated Myocardial Injury-Related Biomarker (TnI) and Increased Mortality in Patients With Severe Fever With Thrombocytopenia Syndrome.

    • Boyun Liang, Ling Xu, Mingyue Li, Hua Wang, Sihong Lu, Lei Fan, Tong Wang, Junyuan Li, Bin Zhu, Junzhong Wang, Baoju Wang, Cheng Peng, Shu Shen, and Xin Zheng.
    • Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
    • Crit. Care Med. 2024 Oct 1; 52 (10): 150915191509-1519.

    ObjectivesThe objective of this study was to investigate the dynamic profiles of myocardial injury biomarkers and their association with mortality in patients with severe fever with thrombocytopenia syndrome (SFTS).DesignA retrospective cohort study.SettingsUnion Hospital in Wuhan, China.PatientsA total of 580 patients with SFTS, observed between May 2014 and December 2021, were included in the final analysis.InterventionsNone.Measurements And Main ResultsIn total, 580 patients with SFTS were enrolled in the study, comprised of 469 survivors and 111 nonsurvivors, with a 21-day fatality rate of 19.1%. The elevation of troponin I (TnI) was observed in 61.6% patients (357/580) with SFTS upon admission, and 68.4% patients (397/580) developed an abnormal TnI level during hospitalization. Multivariate logistic regression identified age, viral load, platelet count, creatinine level, and TnI level as potential risk factors for mortality in patients with SFTS. The results of restricted cubic splines revealed that when the TnI level (baseline TnI: 1.55 [lg (ng/L+1)], peak value: TnI 1.90 [lg (ng/L+1)]) exceeded a certain threshold, the predicted mortality of patients with SFTS increased alongside the rise in TnI levels. Mortality rate surpassed 40% among patients with SFTS with TnI greater than or equal to 10 times the upper limit of normal at admission (43.8%) or during hospitalization (41.7%). Older age, a history of cardiovascular disease, and higher d -dimer levels were potential risk factors for elevated TnI levels in patients with SFTS.ConclusionsElevated TnI levels were prevalent among patients with SFTS and were strongly associated with an increased risk of mortality.Copyright © 2024 by the Society of Critical Care Medicine and Wolters Kluwer Health, Inc. All Rights Reserved.

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