Dynamic changes of hematological and hemostatic parameters in COVID-19 hospitalized patients: Potential role as severity biomarkers for the Chilean population

hematological and hemostatic parameters in COVID-19

  • Pablo Letelier Precision Health Research Laboratory, Departamento de Procesos Diagnósticos y Evaluación, Facultad Ciencias de la Salud, Universidad Católica de Temuco
  • Hugo Delgado Clinical Laboratory, Dr. Hernán Henríquez Aravena Hospital, Temuco, Chile
  • Felipe Garrido Clinical Laboratory, Dr. Hernán Henríquez Aravena Hospital, Temuco, Chile
  • Francisco Quiñones Clinical Laboratory, Dr. Hernán Henríquez Aravena Hospital, Temuco, Chile
  • Andres San Martín Clinical Laboratory, Dr. Hernán Henríquez Aravena Hospital, Temuco, Chile
  • Loreto Hernández Complejo Asistencial Padre Las Casas, Chile
  • Paola Garcés Red Salud Mayor, Temuco, Chile
  • Dina Guzmán Oyarzo School of Medical Technology, Facultad de Medicina y Ciencias, Universidad San Sebastián, Campus Concepción, Chile
  • Rodrigo Boguen Precision Health Research Laboratory, Departamento de Procesos Diagnósticos y Evaluación, Facultad de Ciencias de la Salud, Universidad Católica de Temuco, Chile.
  • Alfonso Hernández Precision Health Research Laboratory, Departamento de Procesos Diagnósticos y Evaluación, Facultad de Ciencias de la Salud, Universidad Católica de Temuco, Chile.
  • Gustavo Medina Precision Health Research Laboratory, Departamento de Procesos Diagnósticos y Evaluación, Facultad de Ciencias de la Salud, Universidad Católica de Temuco, Chile.
  • Patricia Schwerter Department of Mathematical and Physics Sciences, Facultad de Ingeniería, Universidad Católica de Temuco, Chile
  • Neftalí Guzmán Precision Health Research Laboratory, Departamento de Procesos Diagnósticos y Evaluación, Facultad de Ciencias de la Salud, Universidad Católica de Temuco, Chile.
Keywords: COVID-19, SARS-CoV-2, Hematology, Laboratory markers, Prognosis

Abstract


Background: COVID-19 is still a global health issue, there is limited evidence in South America regarding laboratory biomarkers associated with severe disease. The objective of our study was to identify hematological and hemostatic changes associated with severe COVID-19. Methods: A total of 170 hospitalized patients with COVID-19 were included in the study, defining their severity according to established criteria. Demographic, clinical, and laboratory (days 1, 3, 7, 15) data were obtained. We performed a statistical analysis, assuming significance with a value of p < 0.05. We analyzed the correlation between severity and biomarkers and established cut-off values for severe patients through ROC curves, estimating Odds Ratio associated with severe disease. Results: Day 1 was observed significant differences between moderate vs severe patients for leukocytes (WBC), Neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR) and D-dimer, establishing cut-off points for each of them. The markers we found associated to risk of severe disease were WBC (OR=3.2396; p = 0.0003), NLR (OR=5.7084; p < 0.0001), PLR (OR=4.4094; p < 0.0001), Neutrophil (OR=4.1193; p < 0.0001), D-dimer (OR=2.7827; p = 0.0124). Conclusion: The results allow to establish basic laboratory biomarkers associated to severe disease, which could be used as prognostic markers.

 

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Published
2024/04/28
Section
Original paper