Background Stents have widened the indications of endovascular intervention for the cerebral aneurysms.
Purpose We aimed to elucidate the effect of stents on radiologic outcomes and to analyze the risk factors for aneurysmal recanalization via a propensity score matching.
Methods Among 735 aneurysms treated with coil embolization with stents (n = 187) and without stents (n = 548) during the years 2009 to 2011, 157 propensity score-matched pairs of cases were selected. Recanalization rates and relevant risk factors were analyzed. The mean follow-up interval was 24.1 ± 11.3 months (range, 6–48 months) and 22.9 ± 11.4 months (range, 6–56 months) in the stent and the non-stent groups, respectively (P = 0.388).
Results The stent group demonstrated lower recanalization rates than the non-stent group in both the 6-month (1.9% vs 10.2%, P = 0.004) and the final follow-up periods (8.3% vs 18.5%, P = 0.005). In the multivariate analysis, significant factors for recanalization included the use of stents (hazard ratio 0.40, 95% confidence interval 0.21–0.76, P = 0.005), larger aneurysm size (hazard ratio 1.21, 95% confidence interval 1.11–1.31, P < 0.001), and initially incomplete occlusion (hazard ratio 2.39, 95% confidence interval, 1.28–4.43, P = 0.006).
Conclusion In this propensity score-matched analysis, stent implantation reduced recanalization of the coiled cerebral aneurysms.
Disclosures H. Kang: None. W. Cho: None. H. Hong: None. J. Kim: None. Y. Cho: None. O. Kwon: None. J. Bang: None. G. Hwang: None. Y. Son: None. C. Oh: None. M. Han: None.
Statistics from Altmetric.com
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.