National Multicenter Cohort Registry Study of Rapid rEcurrences of Coronary Unexplained In-stent Restenosis

Exclusion Criteria

• •1. Patients presenting with any of the following:
• •* Other severe comorbidities (e.g., malignant tumors, heart failure) with a life expectancy \<12 months;
• •* Known autoimmune/rheumatic diseases including systemic lupus erythematosus, Takayasu arteritis, Behçet's disease, polyarteritis nodosa, Wegener granulomatosis (granulomatosis with polyangiitis), eosinophilic arteritis, giant cell arteritis, rheumatoid arthritis, or IgG4-related disease;
• •* Variant angina (Prinzmetal's angina);
• •* Coronary artery dissection;
• •* Thrombophilia;
• •* Stent underexpansion.
• •2. Presence of psychiatric disorders;
• •3. Known inability to complete expected study follow-up for any reason;
• •4. Patients deemed ineligible for enrollment by the investigator.