Procedural sedation during transradial coronary angiography to prevent spasm

Aim Radial artery spasm is common during transradial procedures and is the most common cause of procedural failure. The objectives of this study were to assess whether the routine administration of sedation at the beginning of transradial coronary angiography with the use of hydrophilic-coated and smaller sheaths/catheters would reduce the incidence of radial artery spasm.