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Five hundred aneurysms treated with a variety of self-expanding stents were clinically assessed and followed angiographically at 6–7 months postprocedure. Thromboembolic phenomena occurred in 21 patients and intraoperative rupture in 4. Initial complete occlusion was achieved in 42.2% progressing to 90.8% at follow-up. Early and late recanalizations were noted in 8% and 2%, respectively.

In this series of 200 patients treated for unruptured intracranial aneurysms, 65% were sent to a routine floor instead of the intensive care unit as is commonly done. Only one patient required transfer to the ICU and thus the authors concluded that in patients without significant co-morbidities, intraoperative complications, or complex aneurysms, routine placement in the ICU after embolization is not warranted.