[Acute Thrombectomy for Atherothrombotic Major Vessel Occlusion]

Area of Science:

• Neuroscience
• Vascular Neurology
• Interventional Neurology

Background:

• Cardiogenic embolism (CE) is the most frequent cause of major vessel occlusion.
• Atherothrombotic (AT) major vessel occlusion is a less common but significant cause.
• Understanding the characteristics of AT occlusions is crucial for effective endovascular therapy.

Purpose of the Study:

• To evaluate and compare the characteristics of patients with atherothrombotic major vessel occlusion undergoing endovascular therapy.
• To compare these characteristics with patients experiencing cardiogenic embolism.
• To assess treatment outcomes in both groups.

Main Methods:

• Retrospective evaluation of 64 consecutive patients undergoing endovascular thrombectomy for major vessel occlusion.
• Classification of patients into atherothrombotic (AT) and cardiogenic embolism (CE) groups based on TOAST criteria (excluding artery-to-artery embolism).
• Comparison of demographic, clinical, and outcome data between the two groups.

Main Results:

• The AT group comprised younger patients (67±13 vs. 77±11 years) with a higher proportion of posterior circulation occlusions (55% vs. 8%).
• Longer onset-to-hospital arrival and onset-to-revascularization times were observed in the AT group.
• Successful revascularization rates and favorable outcomes were similar between AT and CE groups; AT patients tended to maintain their prior functional status.

Conclusions:

• Atherothrombotic major vessel occlusion presents differently, often in younger patients and affecting posterior circulation.
• Despite longer treatment delays, endovascular therapy achieves high success rates and comparable neurological outcomes for AT occlusions versus CE.
• Multimodal endovascular therapy is effective for atherothrombotic major vessel occlusions, yielding similar results to those seen in cardiogenic embolism.