Background Given the benefits of neuroendovascular simulation to resident education, this study aimed to assess the efficacy of simulation-based training for neuroendovascular intervention with primary and secondary catheters using a transradial approach (TRA).

Methods Five neurosurgical residents (PGY 1–3) from our institution enrolled in a standardized pilot training protocol. The residents had variable exposure to diagnostic angiography. All trainees used the Mentice Visit G5 simulator with a type II arch using a right TRA.

Results All participants improved their total time to complete the task from the first trial to the last trial. Residents improved the overall time required to complete the task by 111.8 ± 57 seconds (52% improvement; p=0.012). Participants reported improved knowledge of Simmons catheter formation from 1.6 ± 0.8 to 2.8 ± 1 (p=0.035) and improved knowledge of transradial vessel selection technique from 1.6 ± 0.9 to 2.8 ± 1.1 (p=0.035). All residents were able to illustrate a bovine arch and types 1–3 arches post-simulation. Residents rated the simulation usefulness as 4.6 ± 0.548 (scale 1–5; not useful to essential) with 4 of the 5 residents (80%) identifying this exercise as essential. All residents rated the hands-on component of the training exercise as the most important.

Conclusions Residents demonstrated proficiency at Simmons catheter formation and vessel selection in a type II arch over a short time period (four attempts and < 1 hour total). Residents can use simulator-based training to increase their proficiency of vessel selection using a primary or secondary catheter for a TRA.

Disclosures Z. Hubbard: None. C. Cunningham: None. J. Isidor: None. R. Abo Kasem: None. B. Saway: None. A. Weber: None. M. Sowlat: None. S. Elawady: None. N. Nawabi: None. G. Porto: None. A. Spiotta: 1; C; Penumbra, Microvention, Medtronic, Stryker, RapidAI, Brain Aneurysm Foundation. 2; C; Penumbra, Terumo, and RapidAI.