Purpose For small and wide-necked intracranial aneurysms, the authors present a novel temporary stent-assisted technique (TemSAT) using fully retrievable stent, the Solitaire AB.

Materials and methods Data of a small series of patients who underwent TemSAT was prospectively collected and analyzed. Total 12 patients with 12 aneurysms were enrolled from March 2011 to May 2011. The basic characteristics of the aneurysms, radiologic and clinical outcome were analyzed.

Results Five p-com, 4 paraclinoid ICA, 1 a-com, 1 MCA bifurcation and 1 V4 aneurysms were treated with this technique. One of the p-com aneurysm was ruptured and the other aneurysms were unruptured. Their size was small less than 10 mm (2.5–9.0 mm). The mean aspect ratio was 1.23 (1.1–1.4). Immediate angiographic results were complete in 11 cases and neck remnant in 1 case. There were 2 cases of intraprocedural in-stent thrombosis complication, which resolved after removal of the stent and intra-arterial thrombolytic agent injection. There was no cases of postoperative neurologic complications. The average packing density of the aneurysm was 33.9 % (19.9–57.3).

Conclusion By temporary neck remodeling with retrievable stent, blood flow obstruction risk could be reduced contrary to balloon assisted technique. In addition, there is no need for life-long antithrombotic agent administration. However, due to the characteristics of the Solitaire stent, natural angle of the artery was changed and it resulted in in-stent thrombosis. This technique can be effective in carefully selected cases.

Abbreviations a-com anterior communicating artery MCA middle cerebral artery p-com posterior communicating artery V4 vertebral artery 4 th segment

Disclosures W. Yoon: None.