Preliminary Results of Stent-Assisted Coiling of Wide-Necked Visceral Artery Aneurysms via Self-Expandable Neurointerventional Stents.

ABSTRACT

PURPOSE: To determine technical feasibility and results of stent-assisted coiling of visceral artery aneurysms (VAAs) with self-expandable LEO PLUS neurointerventional stent. MATERIALS AND METHODS: In this retrospective study, 11 consecutive patients (mean age 61.9 y ± 8.9; range, 45-76 y) with VAAs (splenic, n = 3; common hepatic, n = 2; renal, n = 5; celiac, n = 1) treated with neurointerventional stents were included. MR angiography was evaluated for aneurysmal occlusion and patency of the parent arteries. RESULTS: Technical success was 90.9%. A minor technical complication developed in 1 patient (9%), and thrombosis of the distal part of the stent was seen just after deployment in another patient, but it resolved after tirofiban injection. Complete occlusion was determined in all patients on MR angiography at 6-month follow-up. CONCLUSIONS: Self-expandable LEO PLUS neurointerventional stents could become a useful tool in the treatment of VAAs. Studies with larger groups of patients, including control groups, are needed to assess the true outcome of this treatment method.