Mechanical Thrombectomy: Answering Unanswered.

Area of Science:

• Neurology
• Interventional Neurology
• Vascular Neurology

Background:

• Mechanical thrombectomy has emerged as a significant advancement in acute ischemic stroke treatment.
• Multiple trials, including MR CLEAN, ESCAPE, and SWIFT PRIME, demonstrated its efficacy in patients with large vessel occlusion (LVO).
• Guidelines were updated to reflect mechanical thrombectomy as standard care for LVO within six hours.

Purpose of the Study:

• To review the current evidence and address unresolved questions in mechanical thrombectomy for acute stroke.
• To provide a schematic overview of contemporary stroke thrombectomy techniques.
• To discuss specific clinical scenarios and treatment considerations.

Main Methods:

• Review of landmark clinical trials (e.g., MR CLEAN, DAWN, DEFUSE 3).
• Analysis of guideline updates from major stroke associations.
• Discussion of current controversies and unanswered questions in stroke thrombectomy.

Main Results:

• Early trials established mechanical thrombectomy as standard for LVO within six hours.
• Later trials (DAWN, DEFUSE 3) extended its benefit to select patients in a delayed window.
• Several clinical scenarios remain areas of active investigation.

Conclusions:

• Mechanical thrombectomy is a proven therapy for acute ischemic stroke with LVO.
• Ongoing research is crucial to optimize treatment in complex cases and expand therapeutic windows.
• Standardized approaches and further research are needed for challenging stroke presentations.