Comparison of Plasma Coagulability After Short-Term Treatment With Rosuvastatin Versus Atorvastatin in Unstable Angina Patients

Statins are the integral medications for the management of patients with acute coronary syndrome including unstable angina (UA) with multiple pleiotropic effects. However, the influence of statins on the coagulation system is controversial. Our study aimed to explore the effects of atorvastatin and rosuvastatin in high doses on some coagulation parameters (prothrombin pool (PP) and soluble fibrin-monomer complexes (SFMC) concentration) after a 7-days follow-up period in patients with UA. We recruited 50 patients aged 55 to 70 years with progressive UA. Standard therapy according to ESC guidelines 2020 was recommended for all patients. Before treatment onset, they were divided into 2 groups: group A – 26 patients were prescribed atorvastatin, group R – 24 patients with rosuvastatin treatment. The blood samples to analyze the concentration of PP and SFMC were collected twice – before the treatment onset and 7 days after. We revealed significant decrease in PP concentration (p=0,02) and increase in SFMC concentration (p=0,01) in group A patients while there were no significant changes of investigated parameters (p=0,94, p=0,57 respectively) in group R. Additionally, we have noted significant negative correlation between baseline PP concentration and direction of PP changes (r=-0,803, p<0,001) as well as PP changes direction and SFMC concentration after treatment (r=-0,655, p<0,001). Thus, we may consider that atorvastatin and rosuvastatin are characterized by different influences on coagulation in patients with progressive UA with standard basic treatment. The rebound coagulation system activation after anticoagulant discontinuation is more pronounced in UA patients against a background of atorvastatin treatment in comparison with rosuvastatin.