Clinical Observation of Coronary Arterial Microcirculation Dysfunction in Diabetic Patients With Non- Obstructive Coronary Artery Disease

The purpose of this study is to investigate the prevalence and degree of coronary arterial microcirculaiton dysfunction of non- obstructive coronary artery disease in patients with type 2 diabetes. Furthermore, the risk factors of coronary arterial microcirulation would be screened and identified.

Inclusion Criteria:

• Diagnosis non- obstructive coronary artery disease;
• Positive Treadmill exercise test;
• Positive Cardiac ECT test;
• Positive Holter test

Exclusion Criteria:

• Diagnosis of myocardial infarction;
• Diagnosis heart failure;
• Diagnosis of chronic kidney disease;
• Diagnosis of heart valvular disease;
• Diagnosis of malignant tumor;
• Positive heart transplant history;
• Pregnant and lactating women