P-030 Preliminary Experience with the Neuroform ATLAS stent in Stent-Assisted Aneurysm Coiling. (29th July 2016) - Ciccio, G
Abstract : Background and purpose: Expandable stents have broadened the spectrum of endovascular treatment of intracranial aneurysms. The Neuroform ATLAS, a nitinol self-expanding, hybrid/open-cell stent, is the evolution of the Neuroform EZ supposing to ease the navigability of the system into intra-cranial arteries, through a low-profile 0.017 inch delivery catheter. We present herein our initial experience in the treatment of intracranial aneurysms with this novel stent. Materials and methods: We compiled data from consecutive patients of our institution from July 2015 to Avril 2016 who underwent stent-assisted coiling with the Neuroform ATLAS. Clinical and angiographic results were analyzed retrospectively. Results: Twenty-seven intracranial saccular aneurysms (12 MCA, 9 AcoA, 4 ICA bifurcation, 1 basilar tip, 1 vertebral-PICA) in 26 patients (17 women, 9 men, mean age 59 years) were consecutively treated. The stent was used in 23 previously untreated aneurysms, and in 4 cases of recanalization. One single stent was used in 11 aneurysms while 16 aneurysms were treated with 2 stents in a "Y" configuration. The immediate post-treatment angiography showed a complete occlusion in 11 cases (40.7%), a residual neck in 3 cases (11.1%) and a residual aneurysmal contrast filling in 13 cases (48.1%). Two complications occurred (7.4%), the first due to an associated aneurysm perforation (mRs 2), and the second due to parent vessel perforation (mRs 6). Both of them occurred after the stent implantation. Conclusion: The Neuroform ATLAS Delivery System is an effective device for treatment of complex intracranial aneurysms, allowing good conformability and stability with a high level of navigability. Disclosures: G. Ciccio: None. S. Smajda: None. T. Robert: None. H. Redjem: None. R. Blanc: None. C. Ruiz Guerrero: None. J. Desilles: None. H. Takezawa: None. P. Sasannejad: None. M. Piotin: None.