What it is
A catheter is threaded from the groin or wrist to the blocked brain artery and the clot is pulled out, restoring blood flow. In large-vessel strokes treated in time, it dramatically improves outcomes.
The hard limit: time
Thrombectomy generally must happen within hours of stroke onset (up to 24 hours in selected patients with favorable imaging). That is why acute stroke is always treated locally — this page exists for completeness and for patients already in China.
In Beijing
Beijing Tiantan and Xuanwu hospitals run 24/7 stroke intervention teams and are national leaders in cerebrovascular care. For international patients, their real value is usually post-stroke: cause-finding, prevention procedures (e.g. carotid stenting) and recovery planning.