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  • Title: Could the types of paraclinoid aneurysm be used as a criterion in choosing endovascular treatment? Neuro-radiologists' view.
    Author: Wang Y, Li Y, Jiang C, Wu Z, Jiang F, Meng H, Siddiqui AH, Yang X.
    Journal: Acta Neurochir (Wien); 2013 Nov; 155(11):2019-27. PubMed ID: 23925860.
    Abstract:
    BACKGROUND: The type of paraclinoid aneurysm has been used to decide management methods. Our aim was to assess the relation of the types of paraclinoid aneurysms and outcomes after endovascular treatment and the efficiency of present endovascular techniques. METHODS: A retrospective analysis was performed on patients with saccular paraclinoid aneurysms that had more than 6 months of angiographic follow-up or recurrence within this period after endovascular treatment from January 2009 to December 2010. Paraclinoid aneurysms were classified into two types and then further into four subtypes by a modified classification method. A classification-based microcatheter shaping method was used in the procedure. The significant risk factors of angiographic results were determined through correlation analysis and logistic regression analysis by SPSS 17.0. RESULTS: There were 64 aneurysms in 56 patients; 28 aneurysms belonged to Type I, while 36 were Type II. A total of 12 aneurysms were managed with coil embolization, and 52 with stent-assisted coiling technique. Our classification-based microcatheter shaping method was successful in all cases. Coil protrusion happened in two cases without severe complications. Recurrence were found in 13 (20.3 %) aneurysms followed up at 12.42 ± 3.78 (mean±SD) months after treatment. The correlation between aneurysm types and immediate angiographic result or follow-up angiographic results did not reach statistical significance. Aneurysm types were not the risk factor of recurrence. CONCLUSIONS: The types of paraclinoid aneurysm had not been significant correlated with outcomes of endovascular treatment. Fundus size was the significant risk factor of recurrence after endovascular treatment. A classification-based microcatheter shaping method may be used in endovascular treatment paraclinoid aneurysms. The present endovascular techniques are safe and effective.
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