Removal of errant coils using the Tigertriever-13

Area of Science:

• Interventional Neuroradiology
• Endovascular Surgery
• Medical Device Technology

Background:

• Coil migration is a recognized risk during embolization procedures.
• Existing retrieval methods, like stent retrievers, may be too large for small catheters.
• This limitation can necessitate emergency catheter upsizing.

Purpose of the Study:

• To describe and demonstrate a novel technique for retrieving migrated coils.
• To showcase the utility of the low-profile Tigertriever-13 device for coil retrieval.
• To present an in vivo application of the technique as a bailout strategy.

Main Methods:

• Ex vivo demonstration using silicone flow models.
• In vivo application during acute embolization of a ruptured peri-callosal aneurysm.
• Utilized the Tigertriever-13 device for retrieval of embolization coils.

Main Results:

• Successful retrieval of migrated coils was achieved using the Tigertriever-13 device.
• The device demonstrated feasibility in both ex vivo and in vivo settings.
• The technique served as an effective bailout during a complex aneurysm embolization.

Conclusions:

• The Tigertriever-13 device offers a viable low-profile solution for migrated coil retrieval.
• This technique can be crucial in managing intraprocedural complications during neurovascular embolization.
• It potentially reduces the need for emergency catheter upsizing and associated risks.