Bu-Lang Gao1, Ming-Hua Li, Yong-Li Wang, Chun Fang. 1. Department of Diagnostic and Interventional Radiology, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai 200233, People's Republic of China. browngao@yahoo.com.cn
Abstract
INTRODUCTION: We present a previously unreported complication following the treatment of a patient with two small, wide-necked, posterior communicating artery aneurysms. METHODS: Endovascular embolization of one aneurysm was performed using a stent-assisted technique. Follow-up angiography 5 months later revealed that a coil had escaped the confinement of the stent and migrated distally without occluding any arterial branches or causing symptoms. This case report demonstrates that although a rare occurrence, a coil can break loose from the stent. DISCUSSION: We discuss the potential mechanisms of this phenomenon and review the literature on stent-assisted aneurysm coiling in order to raise awareness of this event when embolizing small, wide-necked aneurysms with a stent-assisted technique.
INTRODUCTION: We present a previously unreported complication following the treatment of a patient with two small, wide-necked, posterior communicating artery aneurysms. METHODS: Endovascular embolization of one aneurysm was performed using a stent-assisted technique. Follow-up angiography 5 months later revealed that a coil had escaped the confinement of the stent and migrated distally without occluding any arterial branches or causing symptoms. This case report demonstrates that although a rare occurrence, a coil can break loose from the stent. DISCUSSION: We discuss the potential mechanisms of this phenomenon and review the literature on stent-assisted aneurysm coiling in order to raise awareness of this event when embolizing small, wide-necked aneurysms with a stent-assisted technique.
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