Abstract
Objective: We report two cases of wide-necked basilar bifurcation aneurysm that was treated with coil embolization using a Y-configured stent-assisted technique.
Case presentation: Both patients, Case 1 (a 71-year-old woman) and Case 2 (a 78-year-old woman), presented with sudden onset of disturbance of consciousness (Japan Coma Scale 300, Hunt & Kosnik grade 5). Plain computed tomography (CT) showed a diffuse subarachnoid hemorrhage (SAH), and CT angiography showed a wide-necked basilar bifurcation aneurysm. Because the SAH grade had gradually improved to Hunt & Kosnik grade 3 during conservative treatment, we decided to perform coil embolization. First, we deployed a self-expanding stent (Enterprise VRD) from a posterior cerebral artery (PCA) to the basilar artery (BA). We also deployed a second stent from another PCA to the BA through the interstices of the initial stent. The coil embolization procedure was successfully performed while preserving the patency of parent vessels. There were no postprocedural complications, and the patients were transferred to a rehabilitation hospital.
Conclusion: The Y-configured stent-assisted technique is particularly suitable and convenient for the treatment of wide-necked bifurcation aneurysms.
