PURPOSE The objective of this study was to assess the efficacy and safety of transradial access for diagnostic angiography and interventional neuroradiology procedures. METHODS This was a retrospective analysis of a single-center experience based on 225 patients attended between August 2015 and October 2019, in which transradial access was used for diagnostic angiography and endovascular interventions. Ultrasound-guided access was done at the level of the forearm or anatomical or snuffbox (distal transradial access). Conventional forearm transradial access was done in 179 procedures (right, left and bilateral in 169, 5 and 5, respectively), while distal transradial access was done in 46 cases (41 right and 5 left). Primary outcome measures included successful catheterization, need to change access, or technical complications. RESULTS In the group of 131 diagnostic angiographies, the technique success rate was 100% to target the right vertebral artery, 97% for the right internal carotid, 93.5% for the left internal carotid, 82% for the left vertebral artery, and 100% for both common and external carotid arteries. All patients were discharged within 2-4 h after the procedure. A total of 94 interventional procedures were performed, including aneurysms in 39 cases, stroke in 34, and other procedures (carotid stents, arteriovenous malformations, carotid-cavernous fistula) in the remaining 21. The overall technical success in both diagnostic angiographies and interventional procedures was 97.7%. In four cases of diagnostic angiography and in 1 intervention, it was necessary to switch from transradial access to transfemoral access. Three cases of hematoma related to the access site were recorded. CONCLUSIONS In our experience, transradial access is an alternative approach for diagnostic angiography and neuro-interventions.

中文翻译：

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诊断性血管造影和介入神经放射学程序的经桡动脉入路：四年单中心经验。

目的 本研究的目的是评估经桡动脉入路用于诊断性血管造影和介入神经放射学程序的有效性和安全性。方法 这是一项基于 2015 年 8 月至 2019 年 10 月期间就诊的 225 名患者的单中心经验的回顾性分析，其中经桡动脉入路用于诊断性血管造影和血管内干预。超声引导入路是在前臂或解剖或鼻烟壶（远端经桡动脉入路）的水平上完成的。常规前臂经桡动脉入路 179 次（右侧、左侧和双侧分别为 169、5 和 5 次），而远端经桡动脉入路 46 例（右侧 41 次，左侧 5 次）。主要结果指标包括成功的导管插入术、需要改变通路或技术并发症。结果在131例诊断性血管造影组中，技术成功率分别为：右椎动脉100%、右颈内动脉97%、左颈内动脉93.5%、左椎动脉82%、100%适用于颈总动脉和颈外动脉。所有患者在手术后2-4小时内出院。共进行了 94 次介入手术，其中动脉瘤 39 例，中风 34 例，其余 21 例进行其他手术（颈动脉支架、动静脉畸形、颈动脉海绵窦瘘）。为 97.7%。在 4 例诊断性血管造影和 1 例干预中，有必要从经桡动脉入路转为经股动脉入路。记录了三例与通路相关的血肿病例。结论 根据我们的经验，经桡动脉入路是诊断性血管造影和神经干预的替代方法。