PF4 and aortic stenosis: Patients with AS exhibited increased serum levels of TM (7.64 ± 3.5 ng/mL vs. 6.28 ± 2.1 ng/mL, p = 0.011) and PF4 (25.16; Q1: 8.3; Q3: 29.6 μg/mL vs. 12.85; Q1: 5.7; Q3: 14.5 μg/mL, p = 0.021) compared to the control group.