Coronary Microcirculatory Disease and Inflammation in Patients With Chronic Coronary Syndrome and no Significant Coronary Artery Stenosis

"Comprehensive functional diagnostics of coronary circulation in patients with INOCA (ischemia and no obstructive coronary arteries) including:~* echocardiography with assessment of diastolic function~* flow-mediated dilation of brachial artery~* coronary angiography~* functional coronary assessment (RFR, FFR, IMR, CFR, dp/dt, Tau)~* provocative test with acetylcholine (registration of symptoms, ECG and angiographic spasm)~* laboratory tests (full blood count, serum creatinine level, eGFR, lipidogram, serum CRP/hsCRP level, serum NT-proBNP level)~* serum level of inflammatory cytokines and chemokines"