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In a retrospective multicenter study, all patients treated with the FRED for a ruptured intracranial blister-like aneurysm between January 2013 and May 2019 were analyzed. In total, 30 patients with 30 ruptured blister-like aneurysms were treated. Immediate complete aneurysm obliteration with the FRED was achieved in 10 patients (33%). Of the 26 patients with follow-up, complete obliteration was achieved in 21 patients (80%) after 6 months and in 24 patients (92%) in the final follow-up (median, 22 months). The authors conclude that treatment of ruptured blister-like aneurysms with the FRED is safe and effective.

Endovascular optical coherence tomography imaging was feasible in this preclinical animal study. Adoption of this imaging technique in the human cerebral venous sinus could aid in the diagnosis, treatment, and understanding of the pathophysiology of various diseases of the sinus.