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  • Title: Endovascular treatment of paraclinoid aneurysms: 142 aneurysms in one centre.
    Author: Wang Y, Li Y, Jiang C, Jiang F, Meng H, Siddiqui AH, Yang X.
    Journal: J Neurointerv Surg; 2013 Nov; 5(6):552-6. PubMed ID: 23087381.
    Abstract:
    BACKGROUND: Current endovascular techniques have been widely used to treat paraclinoid aneurysms. METHODS: From January 2009 to December 2011, 126 consecutive patients with 142 saccular paraclinoid aneurysms were treated with endovascular embolization at our institute. A retrospective review of the clinical and imaging data was performed. RESULTS: Of the 142 aneurysms, 121 (86.2%) had small while 21 (14.8%) had large fundus size. 83 aneurysms (58.5%) were narrow necked and 59 (41.5%) were wide necked. The dome-neck ratio was favorable in 26 aneurysms (18.3%) and unfavorable in 116 (81.7%). 24 aneurysms (16.9%) were managed with coil embolization and 118 (83.1%) with a stent assisted coiling technique. Immediate angiography demonstrated complete occlusion in 62 (43.7%), neck remnant occlusion in 47 (33.1%), and residual aneurysm occlusion in 33 (23.2%) aneurysms. The overall recurrence rate in the 112 aneurysms with angiographic follow-up (8.88 ± 3.40 months, mean ± SD) was 12.5%. Of the 14 recurrent aneurysms, 10 were managed with endovascular treatment (six by stent assisted coiling, four by coiling) while four are under observation. There were six (4.3%) procedural complications during 137 procedures. Clinical follow-up was available for 119 patients (94%) with a follow-up time of 16.6 ± 13.6 months, and the majority (98%) had a modified Rankin scale score of 0-1. CONCLUSIONS: The stent assisted coiling technique is effective for the treatment of paraclinoid aneurysms. Small paraclinoid aneurysms (≤ 10 mm) are suitable for endovascular treatment, with a low rate of recurrence. In contrast, large paraclinoid aneurysms (>10 mm) treated with current endovascular techniques exhibited a high rate of recurrence.
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