P-037 Comparison of radiation exposure and clinical outcomes between transradial and transfemoral diagnostic cerebral approaches: a retrospective study

Background Transradial (TRA) catheterization for neuroendovascular procedures is effective and associated with fewer complications than transfemoral (TFA) procedures. However, the majority of the literature has insufficient data on radiation dose exposure and patient-reported outcome comparisons between these two approaches. Methods We retrospectively analyzed 198 patients who underwent diagnostic cerebral angiograms (DCA) at a community hospital from 5/1/2018 to 11/31/2020 during the initial phase of adopting a TRA-first approach. Patients were grouped into two cohorts: TRA (n=49) and TFA (n=149). We compared radiation exposure parameters (total fluoroscopy time (FT), total radiation dose (TD), and dose area product (DAP), number of vessels injected, and patient-reported Global Health physical and mental outcome Scores (PRO GHS) at 30 days post-procedure. Also, a second radiation exposure comparative analysis was performed among patients who received a complete 6-vessel DCA. Results Fluoroscopy time was significantly greater in TRA compared with TFA (15.5 min vs. 10.5 min; p Conclusions Adopting a transradial first approach for diagnostic cerebral angiograms may be initially associated with longer procedure times and higher radiation dose for the patient. Better strategies are needed to mitigate this effect. Disclosures C. Amankwah: None. L. Lombardo: None. J. Rutledge: None. A. Sattar: None. B. Chancellor: None. H. Moyle: None. D. Altschul: None.