3.8 Article

Negative Troponin I as a Predictor of Survival in Patients With Coronavirus Disease 2019

Journal

IJC HEART & VASCULATURE
Volume 45, Issue -, Pages -

Publisher

ELSEVIER IRELAND LTD
DOI: 10.1016/j.ijcha.2023.101196

Keywords

COVID-19; Mortality; Troponin; Cardiac Complications

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This study aims to evaluate the predictive value of serum troponin I level on in-hospital mortality in COVID-19 patients during the first 24 hours of admission. The study found that a negative troponin I level during the first 24 hours of admission was associated with lower rates of in-hospital mortality and cardiac complications.
Background: Despite a large amount of evidence evaluating elevated troponin I levels and adverse clinical outcomes, little is known about the role of a normal (negative) troponin I during the first 24 h of admission for risk stratification in patients with Coronavirus Disease 2019 (COVID-19). This study aims to evaluate the utility and negative predictive value of a serum troponin I level to predict in-hospital mortality.Methods: We retrospectively analyzed all adult patients (>18 years of age) with COVID-19 admitted to an HCA Healthcare facility between March 2020 and March 2021 who had a troponin I level drawn at admission. Patients were initially stratified into two groups based on their cardiac troponin I value in the first 24 h of admission (elevated vs negative).Results: A total of 65,580 patients were included in the final analysis. A negative troponin I value was associated with lesser odds of death during admission (OR = 0.32, 95 % CI 0.31-0.34, p < 0.01) and cardiac complications (OR = 0.38, 95 % CI 0.37-0.40, p < 0.01). The negative predictive value of a negative troponin value for allcause in-hospital mortality was 85.7 %.Conclusions: Our study found a significant association between a negative troponin I value in the first 24 h of admission and decreased odds of death during admission in patients with confirmed COVID-19 infection, in addition to decreased odds of cardiac complications but no significant difference in hospital length of stay. Therefore, the authors suggest that the absence of troponin I elevation may serve as an indicator of a more benign hospital course.

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