We evaluate and report our clinical and angiographic outcomes associated with
stent-assisted coil embolization of wide-necked
intracranial aneurysms using the Enterprise
stent. One hundred sixty-nine patients diagnosed with 182 wide-necked
intracranial aneurysms underwent placement of the Enterprise
stent between April 2009 and October 2011. Demographic information, procedural data, procedure-related complications, angiographic results, and clinical outcomes were reviewed and evaluated.
Stent deployment was successful in 166 out of 169 procedures (98.2%). Four patients had acute procedure-related complications, including th romboembolism in three patients and
aneurysm perforation resulting in the death of one patient. Immediate angiographic results showed complete occlusion in 101
aneurysms (56.4%) and near-complete occlusion in 55
aneurysms (30.7%). Follow-up angiography was performed in 108 patients with 119
aneurysms at a mean of 8.1 months: complete occlusion was observed in 95
aneurysms (79.8%) and near-complete occlusion was found in 12
aneurysms (10.1%). Delayed intra-
stent thromboses were observed in two patients, and asymptomatic in-
stent stenosis was observed in one patient. Ten
aneurysms (8.4%, 10/119) demonstrated recanalization, all of which were subsequently recoiled successfully. Clinical follow-up was obtained for 132 patients at a mean of 11.4 months, out of which 118 (89.4%) had favorable clinical outcomes as determined using a modified Rankin Scale (mRS) ≤ 1. The rates of procedure-related mortality and permanent morbidity were 0.6% (1/169) and 2.3%( 3/132), respectively. This study adds to the current body of evidence supporting the Enterprise
stent as an effective and safe tool for the treatment of wide-necked
intracranial aneurysms because it results in more complete occlusion and lower complication rates.