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

Summary

This project aims to establish a clinical cohort and diagnostic assessment framework by conducting a national multicenter cohort registry study. Through the collection of patients' clinical characteristics, it will achieve the registration, management, follow-up, and analysis of patients with Rapid rEcurrences of Coronary Unexplained in-stent Restenosis (RECUR).

Eligibility

Inclusion Criteria:

1. Age ≥ 18 years;
2. Patients meeting the diagnostic criteria for Rapid rEcurrences of Coronary Unexplained in-stent Restenosis (RECUR);
3. Patients fully informed about the trial procedures who provide written informed consent.

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.

Conditions4

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