What is the maximum time after symptom onset for considering endovascular surgery in stroke patients?

• A. 12 hours
• B. 24 hours
• C. 36 hours
• D. 48 hours

Answer: (B)

The maximum time after symptom onset for considering endovascular surgery in stroke patients is 24 hours. This timeframe is critical because the effectiveness of interventions is highly time-dependent in acute ischemic stroke. Endovascular therapy, which may include thrombectomy, is typically most successful when performed within this window, as the brain tissue can become increasingly irreversibly damaged as time passes.

After 24 hours, the risk of significant complications and diminishing returns on the potential benefits of the procedure increases, making it less favorable compared to earlier interventions. Therefore, identifying and treating patients promptly is vital in the management of stroke to ensure the best possible outcomes.