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Meta-Analysis of the Efficiency and Prognosis of Intracranial Aneurysm Treated with Flow Diverter Devices

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Abstract

Flow diverter devices (FDDs) are increasingly used in the treatment of intracranial aneurysm. The safety and feasibility of FDD were assessed in published literature. In accordance with strict inclusion criteria, Medline, Embase, Cochrane, China National Knowledge Infrastructure, and Web of Science databases were searched for literature that covers a period until February 2015. The baseline characteristics of patients, aneurysms, aneurysm occlusion, morbidity, and mortality were also collected. A meta-analysis was conducted using STATA 12.0, and a chi-squared test was performed to evaluate whether statistically significant differences existed between complications and mortality of aneurysm patients. Finally, a total of 48 studies were selected, including 2508 patients with 2826 aneurysm cases. The mean follow-up interval is 6.3 months, and the aneurysm occlusion rate is 77.9 % (95 % CI 73.8–81.9, I 2 = 43.4 %). The total morbidity and mortality rates are 9.8 and 3.8 %, respectively. The rates of spontaneous rupture and intraparenchymal hemorrhage are 2.0 and 2.5 %, respectively. The rate of ischemic stroke is 5.5 %. The morbidity and mortality rates of giant aneurysms are significantly higher than those of small and large aneurysms (χ 2 = 56.96, p < 0.05; χ 2 = 14.88, p < 0.05). The morbidity rates of posterior aneurysms are significantly higher than those of anterior (χ 2 = 11.29, p < 0.05) and unruptured aneurysms (χ 2 = 10.36, p < 0.05), respectively. The publication bias of aneurysm occlusion was detected by Begg’s rank, and the corrected result is less than 0.05. Our meta-analysis suggests that the treatment of intracranial aneurysm with FDD is feasible and effective with a high occlusion rate, acceptable morbidity, and mortality. However, the morbidity or mortality of giant aneurysms is still high.

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Acknowledgments

The project was supported by the National Natural Scientific Foundation of China (No. 81141088) and by the Promotive Research Fund for Excellent Young and Middle-Aged Scientists of Shandong Province (No. 2004BS02010).

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Correspondence to Yunyan Wang.

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Ye, G., Zhang, M., Deng, L. et al. Meta-Analysis of the Efficiency and Prognosis of Intracranial Aneurysm Treated with Flow Diverter Devices. J Mol Neurosci 59, 158–167 (2016). https://doi.org/10.1007/s12031-016-0723-x

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  • DOI: https://doi.org/10.1007/s12031-016-0723-x

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