Task: Answer Verification
Input (English): Question: Does percutaneous intervention for carotid in-stent restenosis improve outcomes compared with nonoperative management?
Answer: Over 13 years, percutaneous interventions for ≥50% C-ISR were safe and durable. However, interventions fail to improve long-term stroke/death/MI or patency rates relative to nonintervention. Intervention for C-ISR may not be necessary, although future appropriately powered, prospective trials will be necessary to confirm these findings and to determine the appropriateness of interventions for C-ISR.
Output (English): no