Abstract
Objective: We report a rare case of transient occlusion of the parent artery during stent assisted coil embolization foranterior cerebral artery aneurysm.
Case presentation: A 75-year-old man underwent stent assisted coil embolization of an unruptured right anteriorcerebral artery (ACA) aneurysm, 10 mm in diameter. A 22 mm Enterprise stent (Codman Neuroendovascular, Johnson& Johnson, Miami, FL, USA) was deployed at the A2 portion of the right ACA after deploying the 1st flaming coil.Therefore, additional coils were introduced with jailing technique. Toward the end of embolization, the parent artery(right ACA) was suddenly occluded when a filling coil was inserted withdrawing the microcatheter. After retrieving thelast coil and decannulating the microcatheter from the parent artery, the parent artery was recanalized completely.
Conclusion: The microcatheter was thought to be trapped in the coil mass and between the wall of the parent vesseland the stent, then the parent artery was elongated. Therefore, the parent vessel is kinked and occluded. In cases of stentassisted coil embolization for the narrow parent vessel, microcatheter could be trapped between the wall of the parentvessel and stent.
