INTRODUCTION Distal access catheters are an infrequent focus of technical notes in neurointervention. The 5-French SOFIA's unique design allows for compatibility with 6-French guide catheters, while its supple construction allows for remarkably distal access for a catheter with a 0.055-inch inner diameter. METHODS The authors reviewed a prospectively maintained endovascular database for cases utilizing the 5-French SOFIA from February 2017 through November 2017. Case type, SOFIA location, microcatheter used, and catheter-related complications were noted. RESULTS Over the evaluated period, the 5-French SOFIA was utilized in 33 cases, including 13 aneurysm treatments, 10 arteriovenous shunt embolizations, 5 stroke thrombectomies, and 5 other cases. Of 5 flow diversion cases, 1 was for a symptomatic cavernous internal carotid artery aneurysm necessitating transradial access, another for a ruptured A3 aneurysm, and another for a middle cerebral artery (M2) aneurysm; 2 were more proximal aneurysms. Thrombectomies were for M2 (n = 3) or A2 (n = 2) occlusions. In all cases, the 5-French SOFIA reached its anticipated distal target without complication or the need to utilize a smaller/alternative catheter. Of these 33 cases, there were 10 cases of distal SOFIA target locations: 6 M2/M3, 3 anterior cerebral arteries (ACA), and 1 posterior cerebral artery (PCA). M2/M3 and PCA catheterization was achieved over 2.1-Fr microcatheters; ACA catheterization employed a 2.9-Fr microcatheter for pipeline embolization and a deployed stentriever in the setting of two thrombectomies. CONCLUSION The 5-French SOFIA can be safely utilized for distal, superselective catheterization in the context of complex neurointervention, including aneurysm and arteriovenous shunt embolization and distal thrombectomy.

中文翻译：

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5-French SOFIA：大脑前动脉、大脑后动脉和脑岛中动脉的安全通路和支持。

引言 远端通路导管是神经介入技术中很少关注的焦点。5-French SOFIA 的独特设计允许与 6-French 引导导管兼容，而其柔软的结构允许显着远端接入内径为 0.055 英寸的导管。方法作者回顾了 2017 年 2 月至 2017 年 11 月使用 5-French SOFIA 的病例前瞻性维护的血管内数据库。记录了病例类型、SOFIA 位置、使用的微导管和导管相关并发症。结果 在评估期间，5-French SOFIA 用于 33 例，包括 13 例动脉瘤治疗、10 例动静脉分流栓塞、5 例卒中血栓切除术和 5 例其他病例。5个导流案例中，1 个用于需要经桡动脉通路的有症状的颈内动脉海绵状动脉瘤，另一个用于 A3 动脉瘤破裂，另一个用于大脑中动脉 (M2) 动脉瘤；2个是更近端的动脉瘤。血栓切除术适用于 M2 (n = 3) 或 A2 (n = 2) 闭塞。在所有情况下，5-French SOFIA 都达到了预期的远端目标，没有并发症或需要使用更小的/替代导管。在这 33 例中，有 10 例远端 SOFIA 目标位置：6 个 M2/M3、3 个大脑前动脉（ACA）和 1 个大脑后动脉（PCA）。在 2.1-Fr 微导管上实现了 M2/M3 和 PCA 导管插入；ACA 导管插入术使用 2.9-Fr 微导管进行管道栓塞，并在两次血栓切除术的情况下使用部署的 stentriever。