@article {Darkhabani459, author = {Ziad M Darkhabani and Marc A Lazzaro and Osama O Zaidat}, title = {Pericallosal artery aneurysm treatment using Y-configuration stent-assisted coil embolization: a report of four cases}, volume = {4}, number = {6}, pages = {459--462}, year = {2012}, doi = {10.1136/neurintsurg-2011-010086}, publisher = {British Medical Journal Publishing Group}, abstract = {Background Pericallosal artery aneurysms at the bifurcation represent a special endovascular technical challenge given their distal location, commonly wide-neck morphology, small parent vessel diameter and potentially high recurrence rate after coiling given the bifurcation location. Y-configuration stent-assisted coil embolization techniques have been reported for the treatment of wide-neck aneurysms located at other vascular bifurcations and only rarely with A2 bifurcation aneurysms. Methods A neurointerventional database was reviewed for identification of all cases of A2 bifurcation aneurysms that were treated with Y-stent configuration. The authors report clinical, technical and outcome data on four patients with pericallosal aneurysms who were treated with a Y-configuration stent-assisted coil embolization technique. Results A Y-configuration stent placement in the anterior cerebral artery/A2 bifurcation was successfully achieved in all four patients without significant technical difficulties. One patient presented with a previously ruptured and partially treated aneurysm and three patients with incidentally found aneurysms. All four patients had a Y-configuration stent placement in one setting. The Y-configuration allowed for complete occlusion of all four aneurysms with no recurrence or arterial occlusion on mean angiographic follow-up of 13.5 months (6{\textendash}28). Conclusion Treating wide-neck pericallosal artery aneurysms at the bifurcation with Y-configuration stent placement is feasible and effective. This technique may be considered as a therapeutic option for wide-neck aneurysms that pose a difficult technical challenge.}, issn = {1759-8478}, URL = {https://jnis.bmj.com/content/4/6/459}, eprint = {https://jnis.bmj.com/content/4/6/459.full.pdf}, journal = {Journal of NeuroInterventional Surgery} }