Purpose: We report a case of acute in-stent occlusion during a stent-assisted coil embolization of a communicating artery aneurysm.
Case presentation: A 58-year-old man presented with a regrowth of an anterior communicating artery aneurysm one year after the initial coil embolization. An acute in-stent occlusion occurred during coil filling through the stent strut. We performed a successful recanalization of the stent using antithrombotic agents.
Conclusions: Acute in-stent occlusion is a possible complication of stent-assisted coil embolization of aneurysms, particularly in narrow parent arteries. Our patient was recovered using antithrombotic drugs and did not present any major ischemic symptoms.