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P055/49  Comparison of neuroform atlas stent assisted coiling and coiling alone in ruptured intracranial aneurysms: a propensity score matching analysis
  1. Ho Jun Yi,
  2. Dong-Seong Shin,
  3. Bum-Tae Kim
  1. Soonchunhyang University Bucheon Hospital, Neurosurgery, Bucheon, South Korea


Introduction Although Neuroform Atlas stent is commonly used in stent-assisted coiling (SAC) to treat ruptured intracranial aneurysms (RIA), its safety and efficacy remain controversial.

Aim of Study To assess the safety and efficacy of SAC using Neuroform Atlas for treating RIA compared with coiling alone by performing a propensity score matching analysis.

Methods RIA treated with coiling alone and SAC between January 2017 and May 2021 were retrospectively reviewed. Demographics, periprocedural complication rates, angiographic outcomes, and clinical outcomes of the SAC using Neuroform Atlas group and the coiling-alone group were analyzed with 1:1 propensity score matching.

Results A total of 375 aneurysms were enrolled, and 274 (63.1%) aneurysms were treated with coiling alone. In total, 101 (26.9%) aneurysms were treated with SAC, and Neuroform Atlas stent was used in 71 aneurysms. In propensity score matching, the SAC using Neuroform Atlas group showed higher incidence of complete occlusion (69.0% vs 56.3%, P = .029), lower rate of recanalization (11.3% vs 25.4%, P = .011), and lesser need for retreatment (7.0% vs 16.9%, P = .016) compared with the coiling-alone group. However, there were no significant differences in periprocedural complications such as intraprocedural thrombosis or postprocedural cerebral infarct between the 2 groups.

Conclusion The use of Neuroform Atlas is safe and effective for SAC in RIA with comparable procedure-related complication rates but better angiographic outcome in comparison with coiling alone.

Disclosure of Interest This study was supported by the National Research Foundation of Korea (NRF-2021R1G1A1094797) and the Soonchunhyang University Research Fund. The authors have no personal, financial, or institutional interest in any of the drugs, materials, or devices described in this article.

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