Exploration and Establishment of an Early Warning System for Futile Reperfusion - A I S

Exclusion Criteria

• •1\. Preexisting dementia or severe disability (modified Rankin Scale score ≥3) 2. Cerebral vascular malformations, neoplasms, abscesses, or other significant non-ischemic brain pathologies 3. Life-limiting systemic comorbidities (e.g., end-stage organ failure, metastatic malignancies) with anticipated survival \<6 months 4. Patient or legally authorized representative declined consent 5. Anticipated poor protocol adherence or loss to follow-up