Association of Palmar Arch Collateral Function and Radial Artery Occlusion After Transradial Access

Abstract

than those without RAO: 0.900 ± 0.074 versus 0.801 ± 0.154 (p = 0.006). In conclusion, complete RAO as determined by Doppler ultrasound later than 3 months after TRA is rare (2%). In the long run, RAO appears to be related to a very well-developed radial artery collateral function.