Clinical Research Directory

Inclusion Criteria: * Age greater than or equal to 18 years at the time of admission to the hospital * PCI patients with coronary heart disease: according to the criteria interpreted in the 2011 American Guidelines for Percutaneous Coronary Intervention. The successful diagnostic criteria of PCI: residual stenosis of the treated vessel\<10% (preferably 0%), and the forward flow is TIMI grade 3, there is no dissection that affects the flow, no important side branch occlusion, no visible thrombus and peripheral embolism. Exclusion Criteria: * Patients who failed in PCI treatment; * Current known inability to follow instructions or comply with follow-up procedures.