The application of Trans-Radial telescoping catheter technique with a Distal Access catheter and Simmons catheter (RDAS) in neurointerventional procedures: A dual-center experience.

This study evaluated the feasibility and efficacy of the Trans-Radial telescoping catheter technique using a Distal Access catheter and Simmons catheter (RDAS) compared to the traditional Catheter Exchange Technique (CET) in neurointerventional procedures via the transradial approach (TRA). A retrospective analysis was performed for 149 consecutive patients undergoing neurointerventions via TRA in 2 dedicated neurointerventional centers, using either RDAS (n = 124) or CET (n = 25). Key endpoints included technical success rate, procedural time, and fluoroscopy time. RDAS demonstrated a 100% technical success rate, compared to 88% in the CET group. Mean procedural time taken (RDAS 13.4 min [range = 6.1-23.7] versus CET 19.3 min [range = 8.7-45.7]; p = 0.003) and fluoroscopy time length (RDAS 8.1 min [range = 3.9-16.5] versus CET 10.6 min [range = 6.2-23.6]; p = 0.024) were significantly lower in RDAS than in CET. RDAS consistently allowed placement of the guiding catheter into the petrous ICA or beyond in 94.4% of cases. No procedure-related complications were observed. Compared to CET, RDAS technique allows improved efficacy and time-efficiency in neurointerventional procedures via TRA. Clinical trial number Not applicable.