Clopidogrel Resistance and Embolism in Carotid Artery Stenting "CRECAS"

Recruiting

Phase 3 Results N/A

Eligibility Criteria

Inclusion Criteria

- Patients scheduled for stent implantation due to carotid stenosis
- Patients resistant to clopidogrel defined by platelet inhibition rate <20% measured by Verify Now before carotid stenting
- Patients with informed consent

Exclusion Criteria

- Antiplatelet therapy other than aspirin, clopidogrel, or ticlopidine
- Unable to perform MRI scans
- Patients with hematologic abnormalities including neutrophil <1500/ul, platelet <100,000/uL, or AST/ALT >120 U/L
- Unsuitable for participation