Coagulation parameters and prognosis analysis in COVID-19 patients

Aims: There are many factors that affect morbidity and mortality in COVID-19. Coagulopathy is thought to be one of the important mechanisms in COVID-19 mortality. In this study, it was aimed to investigate coagulation factors and their relationship with prognosis in COVID-19. Methods: Patients diagnosed with COVID-19 were retrospectively reviewed in our hospital. The patients' demographic data, laboratory data on admission to the hospital, intensive care admissions, and surveillance were recorded. Patients were divided into two groups; Group 1 is non-critical patients followed up in the clinic, Group 2 is critical patients who need treatment in the intensive care unit. Results: 403 patients followed up for COVID-19 were analyzed. It was determined that the average age of the patients in Group 1 was statistically significantly lower than those in Group 2. (1: 45.28 ± 15.31 vs. 2: 60.15 ± 15.72, respectively, p <0.001). It was observed that the rates of HT, DM, CHD, and COPD in Group 2 were statistically significantly higher than Group 1 (p <0.05). While APTT values were similar in both groups, D-Dimer values were significantly higher in Group 2. As QSOFA, SIC, DIC, and coagulation marker scores increased, the percentage of patients with death increased significantly (p <0.05). Age, HT, COPD, PT, and high fibrinogen levels were found to increase the mortality risk rates statistically (p <0.05). Conclusion: It was determined that the most important factors determining mortality in COVID-19 are COPD and HT. APTT and D-dimer values were not found to be a prognostic factor in terms of mortality. However, PT, fibrinogen, and age are poor prognostic factors and can be used to predict mortality requiring intensive care.