mechanical thrombectomy
Endovascular procedure to physically remove blood clots from large intracranial vessels in acute stroke patients.
Full Definition
Mechanical thrombectomy is a minimally invasive endovascular procedure that uses specialized devices to physically extract blood clots from large intracranial arteries in patients with acute ischemic stroke. The procedure typically involves catheter navigation to the site of occlusion, followed by clot retrieval using stent-retrievers, aspiration devices, or combination techniques. Modern thrombectomy has revolutionized acute stroke care, with clinical trials demonstrating significant improvement in functional outcomes when performed within appropriate time windows. Successful recanalization is typically defined as TICI 2b-3 flow restoration, and the procedure requires close coordination between stroke teams and interventional neuroradiologists.
Usage
Usage note: Include recanalization grade (TICI score) in procedural documentation when available.
In Context
- "Emergency mechanical thrombectomy achieved TICI 3 recanalization of the left M1 occlusion." — Intervention procedure report
- "The patient qualified for mechanical thrombectomy based on imaging evidence of large vessel occlusion and salvageable tissue." — Stroke team consultation