Inclusion criteria:
Patients referred to Bu-Ali Sina Referral Center who are candidates for coronary angiography based on clinical criteria, echocardiography, or other causes except for acute myocardial infarction or its history and complications (such as arrhythmias or conduction disorders), and then using The relevant criteria for diagnosing slow flow coronary syndrome are set for them.
Exclusion criteria:
Patients with a history of Myocardial infarction, Coronary artery bypass graft surgery, Percutaneous coronary intervention, Heart failure, Valvular heart disease, connective tissue disorders, Atrio-ventricular conduction disorders, Chronic obstructive pulmonary disease, Electrolyte disturbance, Chronic kidney disease, Anemia, and Systemic Hypertension are excluded from the study.
After coronary angiography, patients with coronary slow flow due to secondary causes including Coronary artery ectasia, Coronary artery aneurysm, Coronary artery spasm, Air embolism during the procedure, and Congenital anomalies of coronary arteries are excluded from the study.
Patients who do not agree to participate in the plan for any reason or decide to withdraw from the plan at any time.