Clinical experience with a shape memory polymer peripheral vascular embolisation plug: a case series

Area of Science:

• Biomaterials Science
• Vascular Surgery
• Medical Device Technology

Background:

• Shape memory polymers offer unique properties for endovascular applications.
• Novel embolization devices utilizing shape memory polymers are now commercially available.
• This case series presents initial clinical experience with these devices in peripheral vasculature embolization.

Purpose of the Study:

• To outline the initial clinical experience with novel shape memory polymer-based embolization devices.
• To assess the safety and efficacy of these devices in peripheral vasculature embolization.
• To document the technical success and outcomes of embolization procedures using these devices.

Main Methods:

• A case series design was employed, collecting data from a post-market registry.
• Eight patients undergoing embolization for various vascular conditions were included.
• The IMPEDE Embolization Plug (IMP-Device), a shape memory polymer device, was used in target arteries ranging from 5-10 mm in diameter.

Main Results:

• All eight procedures were technically successful, achieving target vessel thrombosis.
• Sustained vessel occlusion was confirmed on follow-up imaging (45-90 days).
• No adverse events related to the specific use of the IMPEDE Embolization Plug were reported.

Conclusions:

• The novel sponge-based embolic device demonstrates safety and efficacy for embolizing small and medium-sized arteries.
• Further clinical experience will elucidate the broader utility of shape memory polymer devices in endovascular interventions.
• These findings support the use of shape memory polymer technology in peripheral vascular embolization.