Tongxinluo Capsule for Coronary Microvascular Disease

The Efficacy and Safety of Tongxinluo Capsule in Patients With Coronary Microvascular Disease

To investigate the efficacy and safety of Tongxinluo in patients with microvascular angina pectoris. Long-term follow-up of 1 to 5 years will be performed to evaluate the effect of Tongxinluo on long-term adverse cardiovascular events in patients with coronary microvascular disease.

Inclusion Criteria:

1. Repeated chest pain attacks with typical exertional angina pectoris or resting angina pectoris attacks;
2. Coronary normal or stenosis < 20%;
3. Ischemic depression in ST segment during resting or exercise;
4. Blood flow reserve (CFR) of the anterior descending coronary artery < 2.0;
5. Subjects or their guardians agreed to participate in this study.

Exclusion Criteria:

1. Previous myocardial infarction or PCI or CABG treatment;
2. A history of heart failure or LVEF < 50%;
3. Severe arrhythmia;
4. Myocarditis, Pericardium Disease, Valvular Disease, or Cardiomyopathy;
5. A history of stroke within half a year;
6. Diabetes difficult to control;
7. Refractory hypertension or hypertension accompanied by left ventricular wall thickness > 12 mm;
8. Familial hypercholesterolemia;
9. Takayasu arteritis, Kawasaki disease or coronary artery malformation;
10. Pregnant or nursing, or having the intention to give birth within one year;
11. Hepatic or renal dysfunction;
12. Other diseases which may cause serious risks to patients;
13. Requiring warfarin anticoagulant therapy; Taking potassium channel opener, CCB, ACEI drugs or traditional Chinese medicines;
14. Allergic to contrast agents or blood products;
15. Patients who participated in clinical research of other drugs within 3 months before being selected.