Article Figures & Data
Figures
- Fig 1.
Coil retrieval. A, Displaced coil is visible in the more distal ACA, distinct from the coil mass within the anterior communicating artery aneurysm. The coiling microcatheter has been removed. The stent retriever delivery catheter is seen traversing the aneurysm neck, and the stent retriever has been deployed adjacent to the errant coil. B, Retraction of the stent shows capture of the displaced coil. Note the conformational change to the displaced coil mass. C, The stent retriever is pulled from the intracranial circulation with coil engaged, past the existing coil mass. D, The coil is successfully removed, without disruption of the remaining coil within the aneurysm. Additional coils were subsequently placed in the aneurysm to complete the procedure.
- Fig 2.
Delayed coil retrieval. A, Final coiling result, with coil loop protruding into the postbifurcation M1 segment of the MCA. The initial intention was to manage this conservatively. However, the patient had subsequent embolic events and required definitive treatment of the prolapsed coil. B, Deployment of the stent retriever, starting immediately distal to the prolapsed coil. C, Engagement of the coil, as evidenced by the conformational change in the coil loop appearance. D, Subtracted image showing traction on the coil loop during extraction from the aneurysm lumen. E, Successful removal of the offending coil from the circulation. F, Final result, with the aneurysm secured and unchanged in morphologic features after the removal of the prolapsed coil. The ischemic events in this patient did not recur.
