Prevention of radial artery occlusion by simultaneous ulnar and radial compression (PRO-SURC). A randomized duplex ultrasound follow-up study

•Radial artery occlusion remains the most common complication of transradial interventions.•Maintaining patency of radial artery is of utmost importance for repeated procedures.•Simultaneous ulnar and radial arteries compression was associated with less incidence of radial artery occlusion.•Patients with lower post-procedural Radial artery diameter were at greater risk of late radial artery occlusion.