Coil Knotting during Endovascular Coil Embolization for Ruptured MCA Aneurysm. A Case Report.

SUMMARY: Complications during coil embolization of cerebral aneurysms include thromboembolic events, hemorrhagic complications related to procedural aneurysmal rupture and parent vessel perforation, and coil-related complications. The present report describes a rare coil-related complication involving spontaneous coil knotting.