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Abstract - Case Report

J Cerebrovasc Endovasc Neurosurg. 2023 25(2): 196-202
The Journal of Cerebrovascular and Endovascular Neurosurgery
Migrated coil and damaged stent removal during coil embolization, using an additional, retrievable stent: A case report
Hee Seung Noh, Sung Chan Park, Jong Min Lee, Soon Chan Kwon
Department of Neurosurgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea

One of the common complications that can occur during coil embolization of cerebral aneurysms, is migration of coil lump alone. The removal of these migrated coils has been reported on a few occasions. On the other hand, rare complications would include the migration of the coil with subsequent stent dislocation. Currently, there is no standardized method to correct the complications of stent dislocation, and very few instances of this complication have been reported previously. In this report, we introduce a case of coil migration combined with stent dislocation. This occurred during coil embolization of an unruptured aneurysm of the distal, left internal carotid artery for a 52-year old woman. We retrieved both the damaged stent and migrated coil using another retrievable stent successfully with no more further complications. In the present report, we describe in detail how we corrected the complication successfully stent, and we discuss why this rescue maneuver is reasonable option for the complication mentioned above.
Key words : ‌Intracranial aneurysm, Endovascular procedures, Stents, Intraoperative complications

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