Journal of Neuroendovascular Therapy
Online ISSN : 2186-2494
Print ISSN : 1882-4072
Technical Notes
Strategies to Improve the Operability/Safety during Embolization of Unruptured Cerebral Aneurysms Using a Balloon-/Stent-assisted Technique: Dual Inner Catheter Technique
Naoyuki AraiRyuzaburo KanazawaTomoyuki YoshiharaManabu OsakabeTetsuhiro HigashidaTakanori Uchida
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ジャーナル オープンアクセス

2018 年 12 巻 8 号 p. 404-408

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Purpose: When intending balloon-/stent-assisted embolization of cerebral aneurysms using ≥8 Fr guiding and coaxial 6 Fr inner catheters, operations can be conducted more safely by inserting the inner catheter to a site proximal to the aneurysm. However, tortuous-blood-vessel-related mechanical vasospasm or blood stagnation makes it impossible to insert a 6 Fr inner catheter to a distal site in some patients. For adjunctive techniques, devices may interfere with each other in a 6 Fr inner catheter, reducing the operability.

Case Presentation: In this study, we termed a method of placing two 4.2 Fr FUBUKI catheters (Asahi Intecc Co., Ltd, Aichi, Japan) in parallel in an 8 Fr shuttle sheath (SS) to reduce the resistance to a parent blood vessel and improve the operability during an adjunctive technique, “dual inner catheter technique (DICT)”, and selected the DICT for 10 patients with unruptured cerebral aneurysms.

Conclusion: The DICT reduced the distance from the aneurysm, device-related interference, and risk of blood stagnation/mechanical vasospasm, improving the operability/safety.

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