2.1. Experimental Group Characteristics
CAD, myocardial revascularisation
CAD
The study included a group of 50 patients (25 men), aged 56–70 years, with CCS and after PCI performed in elective mode. The diagnostic and therapeutic process of CAD was fulfilled as part of the routine diagnostics of the Outpatient Cardiology Clinics and the Department of Cardiology and Cardiovascular Interventions of the University Hospital in Kraków. PCI was performed in accordance with the ESC guidelines for myocardial revascularisation [