The present case-control study is designed to investigate the disease characteristics of IR-CAD by comparing the demographics, clinical features, lab results, imaging findings, and prior treatment between 20 patients with IR-CAD and 10 patients with AS-CAD.
18 years of age or older, male or female.
Negative results of urine or blood pregnancy test for females with childbearing potential (not post-menopausal or surgically sterile).
Prior history of coronary revascularization (PCI or coronary artery bypass graft [CABG]).
Receiving standard treatment for secondary prevention of AS-CAD after the last coronary revascularization.
Coronary restenosis due to mechanical factors (stent under-expansion, stent mal-apposition, stent rupture, et al).
Other moderate to severe heart diseases (congenital heart disease, valvular heart disease, myocarditis, cardiomyopathy, pericardial diseases, pulmonary hypertension, heart failure, arrhythmia, et al).
Active acute or chronic infection (human immunodeficiency virus [HIV], tuberculosis, et al).
Active malignancy (diagnosed within 12 months or with ongoing requirement for treatment).