Pericallosal artery aneurysm treatment using Y-configuration stent-assisted coil embolization: a report of four cases
- Department of Neurology, Neurosurgery and Radiology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
- Correspondence to Dr Osama O Zaidat, Department of Neurology, Neurosurgery and Radiology, Medical College of Wisconsin, 9200 W Wisconsin Ave, Milwaukee, WI 53226, USA;
Contributors ZD: data collection, writing and editing. MAL: editing, illustration and figures. OZ: final editing.
- Received 7 June 2011
- Revised 4 August 2011
- Accepted 26 August 2011
- Published Online First 12 January 2012
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 (6–28).
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.
- arteriovenous malformation
Competing interests None.
Ethics approval Ethics approval was provided by the institutional review board of the Medical College of Wisconsin.
Provenance and peer review Not commissioned; externally peer reviewed.