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  • Title: Endovascular treatment of ruptured tiny, wide-necked posterior communicating artery aneurysms using a modified stent-assisted coiling technique.
    Author: Zhao R, Shen J, Huang QH, Nie JH, Xu Y, Hong B, Yang PF, Zhao WY, Liu JM.
    Journal: J Clin Neurosci; 2013 Oct; 20(10):1377-81. PubMed ID: 23890412.
    Abstract:
    The endovascular treatment of patients with tiny, wide-necked aneurysms is technically challenging, due to the small volume for microcatheterization and coil stabilization inside the aneurysm sac. We performed a retrospective study to evaluate the feasibility, effectiveness, and safety of stent-assisted embolization for patients with ruptured, tiny, wide-necked posterior communicating artery (PcomA) aneurysms. Between January 2007 and August 2011, 17 tiny, wide-necked PcomA aneurysms that had ruptured were treated at our institution using a modified stent-assisted technique, with delivery of the first coil inside the aneurysm followed by placement of a self-expanding stent via a second microcatheter. All patients were treated successfully using this modified stent-assisted coiling technique. Initial results showed aneurysm occlusion of Raymond Class 1 in 10 patients, Class 2 in four patients, and Class 3 in three patients. The angiographic follow-up results for 13 patients (mean, 12.5 months) showed that all aneurysms remained stable or improved, without any in-stent stenosis or recurrence. Of the other four patients, three refused angiography for economic or personal reasons, and one was lost in follow-up. Clinical follow-up of 16 patients for a mean of 23.8 months showed no death or rebleeding. These results imply that endovascular treatment of ruptured tiny, wide-necked PcomA aneurysms using our modified stent-assisted coiling technique is safe and feasible. This technique improves the long-term outcomes of these aneurysms by increasing the packing density and diverting the intra-aneurysmal blood flow.
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