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The impact of daily troponin I and D-dimer serum levels on mortality in COVID-19 pneumonia patients. | LitMetric

Background: Coronavirus disease 2019 (COVID-19) is an infection resulting in very high morbidity and mortality rates globally. Limited data are available on the cardiovascular manifestations in these patients. The aim of this study was to analyse the daily troponin I and D-dimer levels and their impact on the need for intensive care and on mortality rates of COVID-19-infected patients.

Methods: Two-hundred and five patients who were hospitalised between 20 March and 5 May 2020, with a diagnosis of moderate-to-severe COVID-19 pneumonia, were analysed retrospectively. Serum troponin I and D-dimer levels were recorded for at least 10 days after admission.

Results: The average age was higher in the group of patients who died compared to the group who were discharged (67.79 ± 14.9 vs 56.87 ± 18.15 years, respectively, < 0.001). The presence of hypertension, diabetes mellitus, previous coronary bypass surgery, heart failure, chronic renal failure and chronic obstructive pulmonary disease statistically significantly affected mortality rates ( = 0.003, 0.004, 0.045, 0.02, 0.003, 0.007, respectively). The first 10 days of measurements of troponin I and D-dimer were associated with intensive care requirements and mortality ( < 0.001). Both troponin I and D-dimer were higher in the group who died compared to the patients requiring intensive care. Troponin I values of ≥ 16.05 pg/ml on the seventh day were related to the need for intensive care [area under the curve (AUC) 0.896, sensitivity 78.6%, specificity 78.3%, < 0.001). Troponin I values ≥ 30.25 pg/ml on the ninth day were related to mortality (AUC 0.920, sensitivity 89.5%, specificity 89.3%, < 0.001). D-dimer values ≥ 878 hg/ml on the second day were associated with intensive care need (AUC 0.896, sensitivity 78.6%, specificity 78.3%, < 0.001). D-dimer values ≥ 1 106 hg/ml on the 10th day were associated with mortality (AUC 0.817, sensitivity 68.4%, specificity 65.2%, < 0.001). It was observed that hospitalisation periods ≥ 9.5 days were associated with mortality (AUC 0.738, sensitivity 68.4%, specificity 65.9%, < 0.001).

Conclusions: We showed that hospitalisations ≥ 9.5 days in duration were related to increased mortality rates. Troponin I and D-dimer follow-up values in the serum were more effective than other inflammatory markers in predicting mortality and the need for intensive care. A high troponin I value should alert the clinician in terms of clinical deterioration.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10392793PMC
http://dx.doi.org/10.5830/CVJA-2022-017DOI Listing

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