Highest Efficacy of Dual Antiplatelet Therapy After Carotid Artery Stenting in High Bleeding Risk Patients

"* Arm A : Single antiplatelet therapy (SAPT) with aspirin or clopidogrel~ \- 1 month of dual antiplatelet therapy(100mg aspirin q.d. and 75mg clopidogrel q.d.)→ Randomization → 11 months of single antiplatelet therapy (100mg aspirin q.d. or 75mg clopidogrel q.d.)~* Arm B : Dual antiplatelet therapy (DAPT) with aspirin and clopidogrel - 1 month of dual antiplatelet therapy(100mg aspirin q.d. and 75mg clopidogrel q.d.) → Randomization → 11 months of dual antiplatelet therapy (100mg aspirin q.d. and 75mg clopidogrel q.d.)"