右心房への迷入塞栓コイルの経皮的回収

Migration of gonadal vein embolization coils into the heart is rare but can lead to serious complications such as thrombosis, infection, or perforation.

A 27-year-old woman presented with chest pain 2 years after bilateral gonadal vein embolization. Imaging revealed a migrated coil adherent to the right atrium. Initial femoral snaring attempts caused coil fragmentation. Successful retrieval was achieved using a combined balloon-assisted trapping technique and AngioVac aspiration via femoral and internal jugular access. The patient recovered uneventfully without residual fragments or complications.

Endothelialization of migrated coils can impede percutaneous retrieval and increase procedural complexity. Multimodal strategies integrating aspiration and mechanical trapping may enhance success and avoid surgery.

Migrated embolization coils can be safely retrieved percutaneously using advanced multimodal techniques. Preprocedural imaging, multidisciplinary planning, and access to specialized equipment are essential for successful and complication-free outcomes.