Feasibility, Safety and Timing of Secondary Percutaneous Coronary Intervention via Distal Transradial Artery Approach

Background Percutaneous coronary intervention (PCI) via distal transradial artery approach (dTRA) is effective in reducing the incidence of radial artery occlusion, however, there are no reports on the feasibility, safety and timing of secondary PCI via dTRA domestically. Objective To explore the feasibility, safety and timing of secondary PCI via dTRA. Methods A total of 70 patients who were to undergo secondary PCI via dTRA in Fuwai Hospital, CAMS&PUMC from July 2021 to July 2022 were consecutively included and divided into ≤30 d group (n=33) and >30 d group (n=37) according to the time interval since the last PCI via dTRA. The general clinical data, operation-related indicators, coronary artery lesions and radial artery inner diameters at 5, 10 and 15 cm proximal to the radial styloid process before and 24 h after PCI were compared between the two groups. Results The dTRA puncture and catheterization were successfully conducted in 69 of 70 patients, with a success rate of 98.6% (69/70) . Second PCI via dTR