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Vahid Jusufović, Šekib Umihanić, E. Alibegović, Dilista Piljić, Amer Mujkanovic, Asja Bijedic, Emir Tulumović, R. Stratton
0 14. 1. 2021.

Ferritin and LDH as Predictors of Mortality in COVID-19 Infection, Bosnia and Herzegovina Single-center Study

Background Since the beginning of the COVID-19 pandemic, several inflammatory markers have been investigated as possible predictors of survival. Ferritin and from recently LDH have emerged as a possible marker that could serve to this purpose, with different cut-off levels than standard. Furthermore, serum elevations of these markers were reported in other viral infections such as dengue fever; while it has not been reported in MERS and SARS outbreaks and possibly making a biochemical distinction between COVID-19 and other similar diseases. The aim of this research was to establish independent admission levels of ferritin and LDH that predict lethal outcome more accurately. Methods In this prospective cohort study all the patients were hospitalized at UKC, B&H (n=137), between 28th of March and 1st of August 2020. The criteria for hospitalization was based on MEWS score, and all the inflammatory markers were evaluated in the first 72 hours of admission. Cut-off values of serum ferritin levels were set at 1500 ng/mL and LDH 350 U/L. Results Patients with serum ferritin levels >1500 ng/mL had 7.304 OR (CI95% 1.956-27.277; p=0.003) higher for lethal outcome than the group with <1500 ng/mL. Also, patients with levels of LDH >350 U/I had 5.560 (CI95% 2.480-12.468; p<0.001) higher OR of lethal outcome than patients with LDH <350 U/L. With the significant statistical difference between group means for both ferritin and LDH (p<0.001).Discussion Serum levels of ferritin >1500 ng/ml and LDH >350 U/L increase OR of lethal outcome. The levels of these inflammatory markers indicate the degree of inflammatory response and severity of the disaese as well as the possible outcome of the disease. Together these two markers could be used as predictors in clinical settings and treatment planning of patients with COVID-19.Conclusion: Together these two markers could be used as predictors in clinical settings and treatment planning of patients with COVID-19.


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