Serum Lipoprotein-a as a Marker of Severity of Coronary Artery Disease in Aortic Valve Sclerosis Patients

A venous blood sample was taken from each patient a month or so after discharge to check their Lp (a) levels. The samples were centrifuged for 10 minutes at 2-8 °C, after which the serum was divided into aliquots and stored at -20 ° C.