The Anch'Or Harpoon Technique With a Manually Expandable Stentretriever (Tigertriever 13), a Technical Note

Area of Science:

• Neuroendovascular surgery
• Interventional neuroradiology
• Vascular access techniques

Background:

• Distal support and access in neurovascular interventions are often limited by vessel tortuosity and length.
• Traditional stent retrievers can be challenging to deploy in complex anatomy, hindering anchor techniques.
• Microcatheter limitations can preclude effective treatment of distal occlusions.

Purpose of the Study:

• To introduce and describe the novel Anch'Or Harpoon Technique for neurovascular interventions.
• To present a manually expandable stent retriever (Tigertriever 13) as a solution for challenging distal access.
• To detail the applications of this technique in overcoming anatomical and length-related limitations.

Main Methods:

• Development of the Anch'Or Harpoon Technique utilizing a manually expandable stent retriever (Tigertriever 13).
• The stent retriever is advanced and manually opened distal to the microcatheter, avoiding unsheathing.
• Application in two scenarios: vessel tortuosity (Anchor technique) and distal occlusions with length issues (Harpoon technique).

Main Results:

• The Tigertriever 13 can be delivered and opened distally to the microcatheter, establishing a stable anchor in tortuous vessels.
• The technique allows the stent retriever to cross sub-occlusive clots in cases of length issues, enabling recanalization.
• Successful application demonstrated for both the anchor and harpoon functionalities in challenging neurovascular anatomies.

Conclusions:

• The Anch'Or Harpoon Technique offers a viable solution for complex neurovascular cases where traditional methods are insufficient.
• This manually expandable stent retriever approach enhances distal access and treatment efficacy in tortuous anatomy and distal occlusions.
• The technique expands the interventionalist's armamentarium for thrombectomy and aneurysm treatment.