Comparative Clinical Study of Drug-coating Balloon Strategy and Drug-eluting Stent Strategy

Exclusion Criteria

• •1. Main branch or branching target lesions require treatment with more than one device (DES or DCB);
• •2. There is more than 1 non-target lesion requiring intervention on the target blood vessel;
• •3. The distance between non-target lesion and target lesion is less than 10 mm;
• •4. Main and branch lesions \> 26 mm or branch lesions length BBB\> mm;
• •5. Left main lesion and its bifurcation lesion;
• •6. Intra-stent restenosis or severe calcification;
• •7. ST-segment elevation or non-ST-segment elevation myocardial infarction 7 days before surgery;
• •8. Severe heart failure (NYHA-IV or left ventricular ejection fraction \<35%);
• •9. Cardiogenic shock;
• •10. known to have renal failure (EGFR \<30ml/min/1.73m2);
• •11. Pregnant or lactating women, or women of reproductive age who had family planning or were unable to take adequate contraceptive measures during the study period;
• •12. Any known allergic reactions or contraindications to the drug and coating or scaffold metal required for DCB in the study;
• •13. Other DES or DCB treatment contraindications;
• •14. Failing to sign an informed consent or having an expected life of less than 12 months;
• •15. Other researchers consider it inappropriate to participate in this study.